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Description

2.6 Protection system

3VA molded case circuit breakers

Manual, 04/2015, A5E03603177010-02

2.6.8

Neutral conductor protection (N)

The ID letter for neutral conductor protection is "N".
The neutral conductor protection system protects the neutral conductor against overloads

and short circuits.
The letters I

refer to the current setting value; the associated setting time is identical to t

Note
A neutral conductor with full cross sectional area (distributed neutral conductor of the same

size as the phases) is normally protected by the phase protection system and does not

require separate protection.

Neutral conductor protection

Neutral conductor protection must be implemented in accordance with the standards valid in

the country of installation. Possible reasons for implementing neutral conductor overload

protection are:

●

The neutral conductor has a smaller cross section than the phase conductors.

●

Harmonic levels in the installation are expected to be higher than normal.

●

A large number of loads, or predominantly single-phase loads, will be connected.

●

The neutral conductor will be isolated for functional reasons, e.g. because there are

several voltage sources.

●

The neutral conductor will be isolated for safety reasons, e.g. because work is in progress

on disconnected units

Neutral conductor protection and 3VA2 molded case circuit breakers
The following versions of 3VA2 molded case circuit breaker have neutral conductor

protection:

●

All 3-pole versions with external current transformer for N conductor

●

All 4-pole versions

Oversized neutral conductor protection can be implemented in combination with the

electronic trip units ETU 5-series and 8-series. This might be necessary to provide protection

against third-order harmonics and multiples thereof.

Содержание 3VA1 100 A

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Страница 3: ...____________ ___________________ ___________________ ___________________ ___________________ 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 Introduction 1 Description 2 Applications 3 Accessories 4 Service and maintenance 5 Technical specifications 6 Appendix A ESD guidelines B List of abbreviations C Conversion tables D ...

Страница 4: ...perated only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING Si...

Страница 5: ... system 28 2 2 Ergonomic design 32 2 2 1 The right circuit breaker for any installation conditions 33 2 2 2 Ergonomic design of circuit breakers handles and control elements 36 2 2 3 Wide range of accessories 39 2 2 4 Connection technology 41 2 3 Technical details 43 2 3 1 Circuit breaker identification 44 2 3 2 Operation 50 2 3 3 Design and components 3VA1 51 2 3 4 Design and components 3VA2 52 2...

Страница 6: ...ceptance and load shedding load management 100 2 8 5 Measuring with a Rogowski coil 101 3 Applications 105 3 1 Line protection applications of 3VA molded case circuit breakers 105 3 1 1 Variants 106 3 1 1 1 Thermal magnetic trip units 106 3 1 1 2 Electronic trip units 110 3 1 2 Overview of 3VA molded case circuit breakers in line protection applications 124 3 2 Use of the 3VA1 breaker as a switch ...

Страница 7: ...uipment 191 4 3 3 2 Auxiliary conductor terminal 199 4 4 Plug in and draw out technology 201 4 4 1 Introduction 201 4 4 2 Overview of variants products 205 4 4 3 General information 206 4 4 4 Information about installation built on and built in components 207 4 4 5 Plug in technology 208 4 4 5 1 Product description 208 4 4 5 2 Combination with other accessories 214 4 4 6 Draw out technology 215 4 ...

Страница 8: ...reakers 300 4 8 2 1 Side mounted residual current devices Basic RCD310 and Basic RCD510 302 4 8 2 2 Loadside residual current devices Basic RCD320 and Basic RCD520 319 4 8 2 3 Loadside residual current device Advanced RCD820 333 4 8 2 4 Technical specifications 352 4 8 3 Modular residual current device 355 4 9 Communication and link up to other systems 360 4 9 1 Description of application and basi...

Страница 9: ...32 6 1 2 2 Accessories 433 6 1 2 3 Example 3VA2 molded case circuit breaker with built on built in accessories 443 6 1 3 Application examples 444 6 1 3 1 Main switch application with EMERGENCY STOP function in accordance with Machinery Directive IEC EN 60204 1 444 6 1 3 2 Electrical interlocking of two 3VA molded case circuit breakers with undervoltage releases 445 6 2 Dimensional drawings 446 6 2...

Страница 10: ...nals with auxiliary conductor connection 496 6 4 4 Additional correction factors with frequencies other than 50 60 Hz for 3VA1 molded case circuit breakers 496 6 4 5 Correction factors with direct current for the thermal magnetic trip units of 3VA1 molded case circuit breakers 498 6 4 6 Derating for the 3VA1 switch disconnector 499 6 4 7 Derating for the electronic trip units of 3VA2 molded case c...

Страница 11: ...he modular design of the internal and external accessories Outstanding selectivity for example makes planning very simple State of the art manufacturing techniques All round product support provided by integrated online support tools Scope of validity of this document This manual is a reference manual for technical information that users will need in order to configure and operate 3VA molded case ...

Страница 12: ...ase circuit breaker docu mentation http www siemens com 3VA Documentation EN 3ZW1012 0VA20 0BC0 3VA molded case circuit breaker tables updated daily 3VA molded case circuit breaker docu mentation http www siemens com 3VA Documentation Automatic transfer control device ATC5300 Manual DE A5E02469034 01 Automatic transfer control device ATC5300 http support automation siemens com WW view de 41909986 ...

Страница 13: ...03177010 02 13 Title Article number Link Switching Protection and Distribution in Low Voltage Networks substantially extended and revised edition 1997 ISBN 3 89578 041 3 Siemens Residual Current Protective Devices Low Voltage Circuit Protection Technology Primer Siemens AG 04 2009 E10003 E38 9T B3011 ...

Страница 14: ...Introduction 1 2 Product specific information 3VA molded case circuit breakers 14 Manual 04 2015 A5E03603177010 02 ...

Страница 15: ...ication for different circuit breaker models The topics discussed in this chapter are listed below Applications and possible uses Portfolio Possible configurations Detailed information about applications and possible uses Technical specifications Molded case circuit breakers and accessories in the system 2 1 1 Applications and possible uses The two tables below show examples of applications and po...

Страница 16: ...rcuit breakers can be deployed in various fields where they perform a variety of different protection tasks The following table sorted according to breaking capacity shows the areas in which 3VA molded case circuit breakers are used Functions and applications 3VA molded case circuit breakers are used in a variety of functions as shown in the table below ...

Страница 17: ...urrent versions sizes Sizes The new 3VA molded case circuit breakers set new standards in flexibility and the variety of modular accessories available Standardized accessories suitable for use with several sizes of circuit breaker from all the 3VA ranges help to cut costs and save time The new 3VA1 molded case circuit breakers are available in 1 to 4 pole versions 3VA1 160 A or in 3 and 4 pole ver...

Страница 18: ...e functions Uniform accessories platform across all 3VA molded case circuit breakers Compact dimensions Thanks to a mounting depth of 70 mm and a cover size of 45 mm the 3VA1 molded case circuit breakers of sizes 100 A 160 A and 250 A are ideal for protecting cables and lines in the plant area especially for the INSTA electrical installation area For these applications there is also a wide range o...

Страница 19: ...ication system Features The most important features of the 3VA2 series are Compact dimensions 3 and 4 pole versions Four breaking capacity classes from 55 kA 150 kA Fixed mounting plug in technology draw out technology Depending on size Selective tripping at rated operational current difference 1 2 5 Electronic Trip Units Retrofittable communication for ETU 5 series and 8 series Depending on the E...

Страница 20: ...Selective protection response of the molded case circuit breakers in relation to each other Selective protection response of the molded case circuit breakers in relation to other protection devices such as downstream low voltage fuses etc Electronic Trip Unit ETU The current sensor of the 3VA2 comprises an iron cored transformer for the internal power supply and a Rogowski coil for precise current...

Страница 21: ...mmunication The Electronic Trip Units ETUs provide the following energy management and communication functions Metering functions Communication Flexible local digital inputs and outputs via the EFB300 external function box Software commissioning support with powerconfig Testing and archiving with the TD300 and TD500 test devices with powerconfig ...

Страница 22: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers 22 Manual 04 2015 A5E03603177010 02 2 1 3 Application examples ...

Страница 23: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 23 ...

Страница 24: ...tion 2 1 Overview applications and portfolio 3VA molded case circuit breakers 24 Manual 04 2015 A5E03603177010 02 2 1 4 Detailed information about applications and possible uses See also Applications Page 105 ...

Страница 25: ...nual 04 2015 A5E03603177010 02 25 2 1 5 Technical specifications O r On request 1 A side plate must be installed see chapter Insulating equipment Page 191 if the installation conditions on the right hand side are such that the device is not finger safe 2 In 125 A 160 A Icu Ics 36 kA 36 kA ...

Страница 26: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers 26 Manual 04 2015 A5E03603177010 02 ...

Страница 27: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 27 O r On request ...

Страница 28: ...system The new 3VA molded case circuit breakers come with a large portfolio of internal and external accessories which can be installed flexibly in any size of circuit breaker depending on the type of accessory The table below indicates which accessories are compatible with particular molded case circuit breakers and which sizes of breakers are compatible with the same accessory ...

Страница 29: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 29 ...

Страница 30: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers 30 Manual 04 2015 A5E03603177010 02 Overview of accessories in the system ...

Страница 31: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 31 ...

Страница 32: ...sories Connection options Integrated system With their technical features and functional scope the new 3VA molded case circuit breakers break new ground but they also set new standards in ergonomic design When it comes to operation functionality and installation the new 3VA series is a fully integrated system This principle is embodied in the basic units and in all internal and external accessorie...

Страница 33: ...led to suit the installation location Handle Front mounted rotary operator Door mounted rotary operator Side wall mounted rotary operator Motor operator When the 3VA molded case circuit breaker is in the OFF position it reliably disconnects all current paths of the circuit in accordance with IEC 60947 2 and IEC 60204 1 VDE 0113 In the event of overvoltage between input and output the reduced clear...

Страница 34: ...he following installation variants Fixed mounted Plug in technology Draw out technology All variants offer the full range of functions e g they can be equipped with every kind of accessory In addition the last two variants are designed to allow speedy molded case circuit breaker replacement for maintenance purposes or visual indication of the electrical isolation in the main circuit ...

Страница 35: ... circuit breaker The draw out unit has three switching positions CONNECT The molded case circuit breaker is connected to the main circuit TEST In the TEST position the main contacts of the molded case circuit breaker are not connected to the main circuit but only to the auxiliary circuit It is therefore possible to check that the auxiliary circuit is functioning properly when the main circuit is o...

Страница 36: ...ors are available as accessories for remote control of the circuit breakers 2 2 2 Ergonomic design of circuit breakers handles and control elements Ergonomic handle With its wide surface area the ergonomic handle is designed to assist manual operation of the circuit breaker The white strip around the edge of the handle makes it easy to identify in conditions of poor visibility The additional rated...

Страница 37: ...ese positions depending on the status of the molded case circuit breaker The switching positions are color coded so that you can identify the status of the circuit breaker at a glance Active illumination You can retrofit an active illumination kit to manual rotary operators The illuminated indicator in the rotary handle signals the relevant switching position in the colors red yellow and green Thi...

Страница 38: ...al 04 2015 A5E03603177010 02 Color coded control elements The control elements on the thermal magnetic and electronic trip units are color coded The color of each control element indicates that it performs a specific function helping you to make the required settings quickly ...

Страница 39: ...d on any size of 3VA1 or 3VA2 circuit breaker The accessories are designed for quick and easy installation The components are coded by color and design to ensure that they are always installed at the correct position in the circuit breaker Color coding of accessories The internal accessories are color coded to clearly indicate their specific function A system of color coding has been used to clear...

Страница 40: ...s included with the internal accessories in the picture above are explained in chapters Locking and interlocking Page 269 and Communication and link up to other systems Page 360 Fast assembly of motor operators The motor operators have been designed for quick and easy assembly and disassembly The internal accessories are therefore easily accessible ...

Страница 41: ...d case circuit breaker The connection technology is easy to integrate in the new series of 3VA molded case circuit breakers With it you can implement various front and rear main conductor connections for the molded case circuit breakers in all types of installation fixed mounted plug in and draw out Box terminal Front connection bars extended Circular conductor terminal Front connection bars broad...

Страница 42: ...he new series of 3VA molded case circuit breakers are designed for connection to a variety of different cables and busbars Different cable types e g Circular conductor Sector shaped conductor Stranded Finely stranded Busbars Rigid Laminated or flexible Laminated copper bar Different materials Copper cables Aluminum cables ...

Страница 43: ...3 Technical details A summary of the technical features of 3VA molded case circuit breakers can be found in this chapter The topics discussed in this chapter are listed below Circuit breaker identification Operation Design and components 3VA1 Design and components 3VA2 Current limitation Breaking capacity ...

Страница 44: ... can be clearly identified from various labels and plates attached to the unit Circuit breaker labeling Each 3VA molded case circuit breaker has labels displaying all the important technical information enabling unique identification Connection information label Key electrical data ETU connection designations Internal accessories label Label insert in accessories compartment ...

Страница 45: ...rrent Trip unit type Knowledge Manager see below Size and breaking capacity class Rated operational current Key electrical data Date of manufacture Knowledge Manager A QR code is attached in a clearly visible location to every 3VA molded case circuit breaker This code can be scanned with a smartphone or a tablet PC For the full range of QR code functions use the Industry Support app supplied free ...

Страница 46: ...reakers 46 Manual 04 2015 A5E03603177010 02 The key electrical data label on the molded case circuit breaker displays the following information IEC breaking capacity values at various volt ages Insulation data Frequency utilization category Supported standards ...

Страница 47: ...it breakers Manual 04 2015 A5E03603177010 02 47 Connection information label The connection information label displays the following information Information about cable connections Article number for operating instructions Code for production Article number ...

Страница 48: ...ert can be found in the right hand accessories compartment When an accessory e g motor operator or manual operator is installed on the circuit breaker this label can be attached to the accessory The label insert displays the following information Information about the molded case circuit breaker Article number Key electrical data ...

Страница 49: ... Internal accessories label You can make a note of the number of installed accessories on the internal accessories label This will enable you to ascertain which accessories are installed without removing the lid of the accessories compartment and to use the information for example to reorder components ...

Страница 50: ...P position Follow the steps below to reclose the circuit breaker contacts from the TRIP position 1 Move the handle to the OFF position 2 Move the handle to the ON position The breaker contacts are now closed Free tripping All 3VA molded case circuit breakers have a free tripping capability This function ensures that the breaker cannot be prevented from tripping even if the operator blocks or is he...

Страница 51: ...ual 04 2015 A5E03603177010 02 51 2 3 3 Design and components 3VA1 The design of the 3VA1 molded case circuit breaker is illustrated in the diagram below Main connections Rotary contact system Breaker mechanism with handle Arc plates Trip unit TMTU Pole cassette enclosure ...

Страница 52: ... Manual 04 2015 A5E03603177010 02 2 3 4 Design and components 3VA2 The design of the 3VA2 molded case circuit breaker is illustrated in the diagram below Main connections Arc plates Breaker mechanism with handle Maglatch Trip unit ETU Current sensor Rotary contact system ...

Страница 53: ...downstream equipment lower thermal load fewer dynamic forces The level of let through energy is also reduced to a considerable extent 3VA molded case circuit breakers are designed with a current limiting capability IEC EN 60947 2 VDE 0660 101 section 2 3 page 12 defines current limiting molded case circuit breakers in the following way Circuit breaker that prevents the let through current from ach...

Страница 54: ...cts Rotary contact system Arc splitter chute The switching pole cassettes are optimized for high breaking capacity and their double rotary contact system design enables extremely good current limiting thanks to the build up of peak arc voltage generated at both contacts in the event of a short circuit This results in significant limitation of the let through energy I t and the let through current ...

Страница 55: ...3 Technical details 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 55 Switching capacity of the 3VA1 series O r On request 1 In 125 A 160 A Icu Ics 36 kA 36 kA Switching capacity of the 3VA2 series ...

Страница 56: ...ty is to minimize the effects of a fault in terms of its duration and the area affected by the fault Selectivity is achieved when the circuit breakers are matched to each other by means of selection configuring and trip settings in such a way that in the event of a fault only the breaker closest to the location of the fault trips Short circuit location Selective behavior The selective behavior of ...

Страница 57: ...uit releases so that in the event of a fault only the downstream circuit breaker will disconnect the part of the electrical installation affected by the fault from the supply Both the tripping delays and the tripping currents of the short circuit releases are graded Zone selective interlocking ZSI Selective behavior is achieved by installing parallel control cables between the molded case circuit ...

Страница 58: ...t breaker lie below the ultimate selectivity value listed in the respective table for the selected combination selectivity is assured for all possible short circuits at the installation point If the calculated short circuit current at the installation point is higher than the ultimate selectivity value selective tripping by the downstream circuit breaker is only assured up to the value listed in t...

Страница 59: ...ries 3VA2 circuit breakers are equipped with intelligent electronic trip units which can be combined with metering functions The tripping characteristic of the electronic trip units can be finely and flexibly adjusted In the event of short circuits a fast trip unit also responds according to the arc power from the arc chute This selective trip unit ensures that major short circuits are cleared mor...

Страница 60: ...automation siemens com WW view en 54137334 134200 In the Entry List you can use the certificate type general product approval explosion protection test certificates shipbuilding etc as a filter criterion 2 5 4 Ambient conditions Pollution degree Operation of the 3VA1 and 3VA2 molded case circuit breakers is approved in accordance with IEC EN 60947 1 and IEC EN 60664 1 for pollution degree 3 Ambien...

Страница 61: ...60068 2 2 Bd and IEC EN 60068 2 1 Ab Temperature range 25 C 70 C IEC EN 60068 2 30 Db Humid heat up to 55 C and air humidity up to 95 IEC EN 60068 2 6 Fc Vibration test IEC EN 60068 2 27 Ea Shock resistance test Between the tests of compliance with the standards and at the end of the tests the usability of the devices is assured with the Verification of operation characteristics Vibration resistan...

Страница 62: ...ower density of air can significantly reduce heat dissipation making it necessary to decrease rated operational voltage the rated uninterrupted current and the short circuit values Refer to the table below for the calculation factor for determining the key values 1 At maximum ambient temperature 50 C 2 Thermal magnetic trip units only 2 5 5 Permissible mounting positions The permissible mounting p...

Страница 63: ...ed case circuit breakers Manual 04 2015 A5E03603177010 02 63 Further mounting positions and mounting positions with accessories The following table shows the possible variations on the mounting positions as well as mounting positions with accessories ...

Страница 64: ... Molded case circuit breaker without accessories or with short terminal cover Molded case circuit breaker with accessories e g phase barrier or long terminal cover A Minimum clearance between molded case circuit breaker and current paths uninsulated and grounded metal see tables below B Minimum clearance between molded case circuit breaker and side walls left right uninsulated and grounded metal s...

Страница 65: ... terminals 2 Can be used for connection methods circular conductor terminal large front connection bars extended and front connection bars broadened Minimum clearance for 3VA2 molded case circuit breakers 1 Can be used for connection methods box terminal screw type terminal internal circular conductor terminal and rear terminals 2 Can be used for connection methods circular conductor terminal larg...

Страница 66: ...oes not reduce the air insulation clearance Accessory components can increase the width or height of the molded case circuit breaker In this case the minimum clearances apply from the corresponding sides of the overall molded case circuit breaker accessory combination NOTICE Damage to the molded case circuit breaker and the system Depending on the application larger minimum clearances may be neces...

Страница 67: ... see table above The following safety clearances apply to molded case circuit breakers installed directly on top of each other x See tables below for minimum clearance Front connection with cable direct Front connection with cable lug Front connection with flat busbar Rear connection with plug in base or busbar terminals Insulation of cable Insulation of busbar Minimum clearance for 3VA1 molded ca...

Страница 68: ... with higher degrees of protection up to IP65 by installation of the following components Door mounted rotary operator Side wall mounted rotary operator Maximum door cutout IP40 Handle and release are freely accessible the control cabinet door closes flush with the molded case circuit breaker 2 5 8 Environmental protection The 3VA1 and 3VA2 molded case circuit breakers meet the specifications of t...

Страница 69: ...ection system of 3VA molded case circuit breakers The topics discussed in this chapter are listed below Description of functions Overload protection L Short time delayed short circuit protection S Instantaneous short circuit protection I Ground fault protection G Neutral conductor protection N ZSI Zone Selective Interlocking Guide to setting the tripping characteristic ...

Страница 70: ...2015 A5E03603177010 02 2 6 1 Description of functions The protection function performed by the molded case circuit breaker in the power distribution network is defined by the choice of trip unit There are two different types of trip unit i e thermal magnetic TMTU and electronic ETU ...

Страница 71: ...Description 2 6 Protection system 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 71 ...

Страница 72: ...cations Tripping characteristics up to a tripping time of 1 ms are represented graphically In order to ease the coordination of different protection devices the current is specified as a multiple of the current setting value and the time is specified in seconds Tripping characteristics for thermal magnetic trip units Characteristics are displayed graphically in the double log coordinate system cf ...

Страница 73: ...layed protection Response threshold of the long time delayed protection Response threshold of the instantaneous protection Delay of the long time delayed protection L Overload range Response threshold of the short time delayed protection S Short time delayed short circuit current range I2t characteristic ON OFF of the short time delayed protection I Instantaneous short circuit current range ...

Страница 74: ...ronment e g switchboard and applications and the type of equipment to be protected The task of calculating and dimensioning the protection settings in accordance with the valid rules is the responsibility of the system planner SIMARIS design The Siemens SIMARIS design software tool is a fast simple and reliable tool for calculating and dimensioning networks in accordance with the valid rules For f...

Страница 75: ... units ETU 5 series and 8 series ETU 5 series and 8 series are equipped with an LCD Parameter settings can be adjusted via this LCD values are input by means of buttons The powerconfig software can also be used to input parameter settings The TD500 test device and the COM800 COM100 breaker data server combined with the COM060 communication module can be used as the software interface ...

Страница 76: ...rmal image function that can be deactivated on some electronic trip units Thermal image activated ON If the thermal image is activated the previous thermal history is taken into account After tripping the thermal memories of the phases are set to a value corresponding to 85 of the thermal equivalent of the warmest phase This setting allows reclosure of the contacts of the molded case circuit break...

Страница 77: ...stantaneous short circuit protection is I stands for Instantaneous This short circuit protection function protects phases L1 to L3 The instantaneous short circuit protection function responds if the instantaneous value equal to the rms of the current in at least one phase exceeds the instantaneous tripping current Ii 2 6 7 Ground fault protection G The ID letter for ground fault protection is G gr...

Страница 78: ...mplementing neutral conductor overload protection are The neutral conductor has a smaller cross section than the phase conductors Harmonic levels in the installation are expected to be higher than normal A large number of loads or predominantly single phase loads will be connected The neutral conductor will be isolated for functional reasons e g because there are several voltage sources The neutra...

Страница 79: ...n Tripping current IN Adjustable as a proportion of the current setting Ir for overload protection Tripping delay Corresponds to the delay setting tr for overload protection Tripping current of the short time delayed short circuit protection Corresponds to the short time delayed short circuit protection Isd Tripping delay Corresponds to the delay setting for short time delayed short circuit protec...

Страница 80: ...stic Response threshold of the neutral conductor protection Response threshold of the long time delayed protection Adjustment of neutral conductor protection settings The tripping current IN can be adjusted for ETU 3 series trip units via setting buttons for ETU 5 series and 8 series trip units via the buttons on the ETU display via a PC using powerconfig ...

Страница 81: ...al breaking time in low voltage networks with multiple molded case circuit breakers connected in series Regardless of the number of series connected molded case circuit breakers all short circuits in the network can be cleared within a maximum time period of 50 ms Note Downward compatibility The ZSI function of 3VA molded case circuit breakers is compatible with the ZSI functions of Siemens 3VL mo...

Страница 82: ... time of I protection A Output transmits the blocking signal tSD Delay time setting of S protection E Input receives the blocking signal tZSI Delay time of all molded case circuit breakers which detect the short circuit but do not receive a blocking signal when ZSI is activated The ZSI function acts on the S and G ranges of the tripping characteristic Currents within the I range instantaneous shor...

Страница 83: ...of the ZSI function Q32 temporarily blocks Q22 which in turn temporarily blocks Q11 Depending on the magnitude of the short circuit current the fault is cleared either within ti 10 ms or tzsi 50 ms Fault 3 Q22 signals short circuit protection to Q11 with the result that only Q22 trips when delay time tzsi 50 ms expires Without the ZSI function the fault would not be cleared until tsd 200 ms had ex...

Страница 84: ...reaker All current values specified for thermal magnetic trip units of 3VA circuit breakers refer to an ambient temperature of 50 2 7 2 Magnetic trip unit with short circuit protection I The magnetic trip unit with short circuit protection comprises a yoke mounting through which a current path runs and a flap armature that is kept at a distance from the yoke mounting by a tension spring If a short...

Страница 85: ... 04 2015 A5E03603177010 02 85 2 7 3 Application cases and trip unit types The table below illustrates the applications for which different types of thermal magnetic trip units can be used 1 For 4 pole molded case circuit breakers only available without protection 50 In 100 A and 100 ...

Страница 86: ...ete measurement of the current in the phases L1 L2 and L3 with N and currents to ground optional Rogowski coil Very precise measurement of the current Better ground fault protection because the vectorial sum is more exact Evaluation of the current measurement values and constant comparison with the tripping limits Tripping by means of a maglatch Electronic Trip Unit ETU Maglatch Current sensor ...

Страница 87: ... 8 1 Connections The connections on the ETU are illustrated in the diagram below Interface for an external current transformer for N conductor Interface for connection of an EFB300 external function box Interface for connection of an RCD820 residual current device Connection for test devices TD300 and TD500 ...

Страница 88: ...2 8 Electronic trip unit 3VA molded case circuit breakers 88 Manual 04 2015 A5E03603177010 02 2 8 2 Protection functions 1 Available in a version with external current transformer for N conductor or 4 pole breaker ...

Страница 89: ...Description 2 8 Electronic trip unit 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 89 1 Available in a version with external current transformer for N conductor or 4 pole breaker ...

Страница 90: ...015 A5E03603177010 02 2 8 3 Operator controls The following figure shows the available ETU types of the 3VA2 molded case circuit breakers You can decide which ETU to install according to the area of application Name of the ETU Front interface Pushbuttons LED display Setting buttons LCD ...

Страница 91: ...Description 2 8 Electronic trip unit 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 91 LED displays The following table explains what the LED displays mean ...

Страница 92: ...A description of the operating principle of the setting buttons and operating instructions can be found in chapter Guide to setting the tripping characteristic Page 74 Displays on ETU 5 series and 8 series units 5 series and 8 series electronic trip units have an LCD display The displayed values are refreshed once per second The following table explains what the symbols in the display mean ...

Страница 93: ...plains what functions are performed by the buttons next to the display Displays on ETU 5 series and 8 series units The basic structure comprises the following displays Standard display Alarm display Measured value display Parameter display If no selection is made within an adjustable time period the standard display will appear ...

Страница 94: ...Description 2 8 Electronic trip unit 3VA molded case circuit breakers 94 Manual 04 2015 A5E03603177010 02 ...

Страница 95: ...ic trip unit 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 95 Standard display Alarm display Active alarms are displayed consecutively in screens AV1 AV5 If no alarms are active these screens are concealed ...

Страница 96: ...Description 2 8 Electronic trip unit 3VA molded case circuit breakers 96 Manual 04 2015 A5E03603177010 02 Measured value display The table below explains the measured value display ...

Страница 97: ...Description 2 8 Electronic trip unit 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 97 Parameter display The table below explains the parameter display ...

Страница 98: ...er setting 4 Confirm the setting with the OK button or cancel the operation with ESC The setting is accepted with OK The parameter display now appears Tripped display After the ETU has initiated a trip the Tripped display automatically appears This screen can be identified by the word Trip which is displayed in the top right hand corner The displayed current value shows the current at the moment o...

Страница 99: ...en a TD500 test device is connected you can use it to initiate a test The following screen appears when a TD500 is connected The bar flashes at a frequency of 0 5 Hz The bar travels from left to right while testing is in progress The test ends with a trip Activation limits The table below shows the activation limits for the ETUs ...

Страница 100: ...ever initiated as a result of the current value crossing the upper or lower thresholds If the current in one phase exceeds the parameter setting for load shedding an incoming alarm load shedding is generated Only when the current in all three phases drops below this threshold is an outgoing alarm load shedding generated The incoming and outgoing alarms can be output via an optional EFB module and ...

Страница 101: ... higher accuracy for ground fault currents A power measurement is made possible by the more exact and more linear measurement of the current together with the integrated voltage tap in the molded case circuit breaker Accuracy levels of the specified measured values of the 8 series ETU including the integrated current sensors Interpretation of measured values PF Power factor Measured current and vo...

Страница 102: ...Electronic trip unit 3VA molded case circuit breakers 102 Manual 04 2015 A5E03603177010 02 The following table provides an overview of the setting values 1 Depending on ETU version Value can be read Value can be edited ...

Страница 103: ...Description 2 8 Electronic trip unit 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 103 1 Depending on ETU version Value can be displayed read ...

Страница 104: ...Description 2 8 Electronic trip unit 3VA molded case circuit breakers 104 Manual 04 2015 A5E03603177010 02 1 Depending on ETU version Value can be displayed read ...

Страница 105: ...s line protection components are In main switchboards to provide protection for cables to subdistribution boards In subdistribution boards to provide protection for cables to small distribution boards Protection for mixed load e g machine lighting system heating system etc The trip units for line protection are designed to provide overload and short circuit protection for Cables Leads Non motor lo...

Страница 106: ... magnetic trip units TM 2 series Page 106 3VA2 breakers with electronic trip units ETU 3 series Page 110 ETU 5 series Page 116 ETU 8 series Page 116 3 1 1 Variants 3 1 1 1 Thermal magnetic trip units Derating Thermal magnetic trip units employ a temperature dependent bimetal to provide overload protection The setting values are calibrated at an ambient temperature of 50 C Compensation factors must...

Страница 107: ...rip unit TM210 LI Line protection FTFM function LI The thermal magnetic trip unit TM210 has fixed parameter setting Ir for overload protection L fixed parameter setting Ii for instantaneous short circuit protection I With 4 pole versions only Neutral conductor N protection permanently set to 0 50 or 100 Ir depending on version Parameter TM210 1 With 4 pole versions only ...

Страница 108: ... unit TM220 LI Line protection ATFM function LI The thermal magnetic trip unit TM220 has adjustable parameter setting Ir for overload protection L fixed parameter setting Ii for instantaneous short circuit protection I With 4 pole versions only Neutral conductor N protection permanently set to 0 50 or 100 Ir depending on version Parameter TM220 1 With 4 pole versions only ...

Страница 109: ...nit TM240 LI Line protection ATAM function LI The thermal magnetic trip unit TM240 has adjustable parameter setting Ir for overload protection L adjustable parameter setting Ii for instantaneous short circuit protection I With 4 pole versions only Neutral conductor N protection permanently set to 0 50 or 100 Ir depending on version Parameter TM240 1 With 4 pole versions only ...

Страница 110: ...for use in line protection applications ETU320 LI ETU330 LIG ETU350 LSI ETU550 LSI ETU560 LSIG ETU850 LSI ETU860 LSIG Electronic trip unit ETU320 LI ETU320 LI 3 pole ETU320 LI 4 pole Line protection function LI The electronic trip unit ETU320 has adjustable parameter settings Ir and tr for overload protection L adjustable parameter setting Ii for instantaneous short circuit protection I With 4 pol...

Страница 111: ... 4 to 1 0 x In tr adjustable in 10 steps of 0 5 to 12 15 s or 17 s tr is the tripping time at 6 x Ir The ETU320 LI has a permanently active thermal image Instantaneous short circuit protection I Ii adjustable in 10 steps of 1 5 to 9 10 11 12 x In depending on size Neutral conductor protection N The neutral conductor protection function is available for 4 pole molded case circuit breakers only IN I...

Страница 112: ...0 LIG 3 pole ETU330 LIG 4 pole Line protection function LIG The electronic trip unit ETU330 has adjustable parameter settings Ir and tr for overload protection L adjustable parameter setting Ii for instantaneous short circuit protection I adjustable parameter settings Ig and tg for ground fault protection G With 4 pole versions only Neutral conductor protection N which can be deactivated ...

Страница 113: ...ETU330 LIG has a permanently active thermal image Instantaneous short circuit protection I Ii adjustable in 10 steps of 1 5 to 9 10 11 12 x In depending on size Ground fault protection G Ig adjustable in 5 steps of 0 2 0 25 0 4 0 6 to 1 0 x In depending on size tg adjustable to 100 ms or 300 ms at 2 x Ig in each case The ground fault protection cannot be deactivated Neutral conductor protection N ...

Страница 114: ...pole ETU350 LSI 4 pole Line protection function LSI The electronic trip unit ETU350 has adjustable parameter settings Ir and tr for overload protection L adjustable parameter settings Isd and tsd for short time delayed short circuit protection S fixed parameter setting Ii for instantaneous short circuit protection I With 4 pole versions only Neutral conductor protection N which can be deactivated ...

Страница 115: ...permanently active thermal image Short time delayed short circuit protection S Isd adjustable in 10 steps of 1 5 to 9 10 x Ir tsd adjustable in 6 steps of 0 to 0 4 s with the reference point at Isd 8 x Ir The curve shape is I2t constant Instantaneous short circuit protection I Ii Not adjustable Permanently set to 9 10 11 12 x In depending on rated operational current and breaker size Neutral condu...

Страница 116: ...ed power supply is connected to the molded case circuit breakers Potential alternatives for this power supply 24 V supplied externally via EFB300 external function box temporarily connected TD300 or TD500 test device internal 24 V module internal COM060 communication module Current flow 20 In in one of the 3 phases A description of the parameter display can be found in chapter Operator controls Pa...

Страница 117: ... pole units Line protection function LSI The electronic trip units ETU550 and ETU850 have adjustable parameter settings Ir and tr for overload protection L adjustable parameter settings Isd and tsd for short time delayed short circuit protection S adjustable parameter setting Ii for instantaneous short circuit protection I With 4 pole versions adjustable parameter setting IN for neutral conductor ...

Страница 118: ...A molded case circuit breakers 3VA molded case circuit breakers 118 Manual 04 2015 A5E03603177010 02 ETU550 ETU850 parameters 3 pole version 1 only 3 pole version with external current transformer for N conductor ETU550 ETU850 parameters 4 pole version ...

Страница 119: ... Isd 50 A In steps of 0 5 A Isd 50 A In steps of 1 A tsd adjustable from 0 05 to 0 5 s with a reference point of Isd 8 x Ir in steps of 0 01 s The curve shape I2t constant can be deactivated Instantaneous short circuit protection I Ii Breaker sizes 100 A to 400 A adjustable from 1 5 to 10 12 x In Size 630 A see tables above In steps of 1 A Neutral conductor protection N The neutral conductor prote...

Страница 120: ...nction LSIG The electronic trip units ETU560 and ETU860 have adjustable parameter settings Ir and tr for overload protection L adjustable parameter settings Isd and tsd for short time delayed short circuit protection S adjustable parameter setting Ii for instantaneous short circuit protection I adjustable parameter settings Ig and tg for ground fault protection G With 4 pole versions adjustable pa...

Страница 121: ...A molded case circuit breakers 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 121 ETU560 ETU860 parameters 3 pole version 1 only 3 pole version with external current transformer for N conductor ETU560 ETU860 parameters 4 pole version ...

Страница 122: ...adjustable from 0 05 to 0 5 s with a reference point of Isd 8 x Ir in steps of 0 01 s The curve shape I2t constant can be deactivated Instantaneous short circuit protection I Ii Breaker sizes 100 A to 400 A adjustable from 1 5 to 10 12 x In Size 630 A see tables above In steps of 1 A Ground fault protection G 4 pole breakers or 3 pole breakers with external current transformer for N conductor dete...

Страница 123: ...al conductor protection function is available only for 3 pole molded case circuit breakers with external current transformer for N conductor for 4 pole molded case circuit breakers IN adjustable in steps of 1 A 3 pole breakers with external current transformer for N conductor In 63 A 0 4 to 1 6 x In In 63 A 0 2 to 1 6 In 4 pole breakers In 63 A 0 4 to 1 6 x In In 63 A 0 2 to 1 0 or 1 6 x In ...

Страница 124: ...0 02 3 1 2 Overview of 3VA molded case circuit breakers in line protection applications O r On request 1 In 125 A 160 A Icu Ics 36 kA 36 kA For the rated ultimate short circuit breaking capacity and rated service short circuit breaking capacity with direct current see chapter DC network applications of the 3VA molded case circuit breaker Page 132 ...

Страница 125: ...Applications 3 1 Line protection applications of 3VA molded case circuit breakers 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 125 O r On request ...

Страница 126: ...e capable of switching equipment and parts of electrical installations when they are conducting their operational current under normal operating conditions Switch disconnectors do not have an overload or short circuit release For this reason a molded case circuit breaker or a fuse must be installed upstream of every switch disconnector Refer to chapter Upstream protection of switch disconnectors P...

Страница 127: ...features This also applies when manual or motor operators installed on the disconnector are in the OFF position Only when the disconnector is in this safe position can it be locked by various methods e g door mounted rotary operator motor operator Making capacity Switch disconnectors have a predefined rated making and rated breaking capacity As a result loads are reliably switched on and off up to...

Страница 128: ...eration e g disconnectors which are used only to isolate parts of electrical installations for maintenance purposes It is important to note however that the term frequent operation does not mean that the switch disconnector may be used to start up accelerate or shut down individual motors in normal operation For example a switch disconnector with a rated operational current Ie of 160 A and a rated...

Страница 129: ...breaker as a switch disconnector 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 129 I Making current Ic Breaking current Ie Rated operational current U Applied voltage Ue Rated operational voltage Ur Recovery voltage ...

Страница 130: ...with an integral overload or short circuit release For this reason a molded case circuit breaker or a fuse must be installed upstream of every switch disconnector The coordination tables given below contain the following information The correct assignment of molded case circuit breakers to the switch disconnectors which require protection The maximum permissible rms short circuit current kA rms fo...

Страница 131: ...ombinations with other protective devices can be configured at any time by means of SIMARIS design or using the characteristics maximum let through energy I2tmax and maximum let through current Ic max of the 3VA1 switch disconnector You will find these characteristics in the technical product data sheets and in the table in chapter Overview of 3VA1 as switch disconnectors Page 130 Note In the even...

Страница 132: ...ker 3 3 1 Introduction The main applications for 3VA circuit breakers in DC installations or networks are Public transport systems e g electric cars underground rail networks and streetcars UPS systems Photovoltaic plants Wind power plants 3VA1 molded case circuit breakers as line protection devices with thermal trip units and magnetic trip units with short circuit protection are suitable for use ...

Страница 133: ...c is not extinguished until the arc voltage exceeds the line voltage and the current reduces to zero In other words a high arc voltage must be developed in order to interrupt the direct current The rated operational current values are generally the same for DC and AC applications With DC applications the breaking capacity depends only on The arc extinction method used The line voltage 3 3 2 Varian...

Страница 134: ...lications 3 3 DC network applications of the 3VA molded case circuit breaker 3VA molded case circuit breakers 134 Manual 04 2015 A5E03603177010 02 3 3 3 Breaking capacity with direct current O r On request ...

Страница 135: ... mandatory for sizes 3VA10 and 3VA11 with a non insulated mounting plate see chapter Insulating equipment Page 191 Note DC 2 pole all pole disconnection grounded system The grounded pole must always be assigned to the individual conducting path so that in the event of a ground fault there are always 2 conducting paths in series in a circuit with 3 pole molded case circuit breakers and 3 conducting...

Страница 136: ...wer supply systems for aircraft On board electrical systems of marine craft and aircraft Other external stations of airports which are protected by uninterruptible power supplies e g radar installations data processing equipment communication systems It is important to supply the on board electrical systems of aircraft with a very smooth DC voltage This can be generated more easily by 400 Hz power...

Страница 137: ...y 10 of the value used in 50 60 Hz applications Furthermore a correction factor must be applied to the magnetic trip unit Example 3VA1 160A TM240 ATAM Reduction by 10 Maximum permissible rated operational current for 400 Hz applications 160 A x 0 9 144 A Correction factor 0 7 If the switching device is to trip instantaneously in response to an overcurrent of 1200 A the parameter Ii for instantaneo...

Страница 138: ...in order to indicate ground faults In the unusual event that a fault on the load side coincides with a second fault on the line side the full phase to phase voltage is connected across one contact of the breaker Siemens 3VA molded case circuit breakers for line protection whether they are equipped with a thermal magnetic trip unit or an electronic trip unit are suitable for use in IT systems Accor...

Страница 139: ...d case circuit breaker Exposed conductive part RA Contact resistance of exposed conductive part ground Two faults on the load side double phase to ground fault A fault develops between two phases and an exposed conductive part or ground A voltage of 690 V is applied at the main contacts This voltage is disconnected by two breaker poles The molded case circuit breaker is rated for Icu Ics at 690 V ...

Страница 140: ...Applications 3 5 IT system applications of 3VA molded case circuit breakers 3VA molded case circuit breakers 140 Manual 04 2015 A5E03603177010 02 ...

Страница 141: ... 4 1 1 Accessories groups A comprehensive range of accessories is available to help you adapt 3VA molded case circuit breakers to the requirements of the specific application The table below indicates which accessories are compatible with particular 3VA molded case circuit breakers and which sizes of breakers are compatible with the same accessory ...

Страница 142: ...bility of different accessories The boxes to the right of the grey diagonal line indicate whether or not accessories can be combined Examples Circular conductor terminal 2 cables and insulating plate broadened green lines in table below Common box contains square sym bol Accessories can be combined Circular conductor terminal 2 cables and terminal cover red lines in table below Common box is empty...

Страница 143: ...Accessories 4 1 Overview of accessories for 3VA molded case circuit breakers 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 143 1 only 4 pole 3VA molded case circuit breakers ...

Страница 144: ...Accessories 4 1 Overview of accessories for 3VA molded case circuit breakers 3VA molded case circuit breakers 144 Manual 04 2015 A5E03603177010 02 ...

Страница 145: ...Accessories 4 1 Overview of accessories for 3VA molded case circuit breakers 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 145 ...

Страница 146: ...ons on 3VA molded case circuit breakers The portfolio of internal accessories includes Auxiliary switches Alarm switches Auxiliary releases COM060 communication module 24 V module Cylinder lock type Ronis The following tables show the alternative mounting locations for internal accessories which depend on the size and pole number of the circuit breaker ...

Страница 147: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 147 3VA1 molded case circuit breakers ...

Страница 148: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers 148 Manual 04 2015 A5E03603177010 02 3VA2 molded case circuit breakers ...

Страница 149: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 149 ...

Страница 150: ...degree of flexibility for planning and installation purposes HQ and HP switches The switches are available in versions HQ and HP HQ switches are 7 mm wide and HP switches 14 mm wide Both switch versions can be combined extremely flexibly in a molded case circuit breaker This level of compatibility means that two HQ switches can be optionally installed in place of one HP switch HQ and HP switches h...

Страница 151: ...f auxiliary switches is to signal the position of the main contacts of the molded case circuit breaker The contacts of the auxiliary switch open and close simultaneously with the main contacts of the molded case circuit breaker Leading changeover switches LCS Leading changeover switches signal the opening of the main contacts with a lead time of 20 ms in advance of circuit breaker trips and are th...

Страница 152: ...d L and neutral conductor overload Short circuit S I Ground fault tripping G Residual current device RCD820 The electrical alarm switch is not operated When the breaker is tripped manually PUSH TO TRIP When the breaker is withdrawn from the plug in draw out socket when the main contacts are closed When activated via an auxiliary release Shunt trip STL STL EI STF Undervoltage release UVR UVR LNO Un...

Страница 153: ... events are also indicated on the molded case circuit breaker The trip must be reset by deliberate acknowledgement of the fault before the molded case circuit breaker is switched to ON again Short circuit alarm switches are only compatible with 3VA1 molded case circuit breakers On breakers equipped with electronic trip units the short circuit alarm function is performed by the electronic trip unit...

Страница 154: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers 154 Manual 04 2015 A5E03603177010 02 4 2 3 Contact sequence diagrams Main contacts open Auxiliary contacts open Contacts closed ...

Страница 155: ...liary contacts open Contacts closed 1 Manual reset by tool necessary after tripping Automatic reset by motor operator MO320 2 Following a trip the main contacts are open but the contacts of the UVR LNO are still closed The switches must be moved to the OFF switching position in order to disconnect the control circuit in all poles ...

Страница 156: ... circuit breakers 156 Manual 04 2015 A5E03603177010 02 4 2 4 Technical specifications of auxiliary and alarm switches 1 HP switches lined up side by side up to 440 V 2 HP switches without adjacent switches not in mounting locations 11 and 21 up to 690 V ...

Страница 157: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 157 1 In combination with manual switching operations but not when motor operators are used ...

Страница 158: ...s are extremely easy to install No tools are required because these 21 mm wide components are simply snapped into place in the accessories compartments to the left and right of the handle The accessories are connected by screw terminals for auxiliary conductors with a cross section of up to 1 5 mm2 The terminals are mounted on the front of the unit for easy access The shunt trips are suitable for ...

Страница 159: ...ght hand 3VA2 only accessories compartment They are therefore suitable for combining different auxiliary releases in one switch The units are available with six rated voltages in the following range 24 to 600 V AC 50 60 Hz Due to their design their power consumption ranges up to maximum 750 VA and is therefore higher than the power consumption of STL versions Undervoltage releases UVR Undervoltage...

Страница 160: ...eaker has tripped The undervoltage release with leading NO contacts UVR LNO is therefore an ideal component for installation in the EMERGENCY STOP circuit of a 3VA molded case circuit breaker or switch disconnector as the main switch for a machine or installation Safe disconnection of the main current paths and safe isolation of the EMERGENCY STOP circuit requires the molded case circuit breaker t...

Страница 161: ...t in which a shunt trip and an undervoltage release are combined These are subject to the same tripping conditions as the individual devices A single component with minimal footprint can therefore perform both functions The three available rated voltages are identical in each case for both the shunt trip and the undervoltage release These rated voltages are 12 V DC 24 V DC 48 V DC ...

Страница 162: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers 162 Manual 04 2015 A5E03603177010 02 Technical specifications of shunt trips and releases ...

Страница 163: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 163 ...

Страница 164: ...f disrupted operation Time delay device for UVR with fixed delay setting The simple time delay device with fixed delay setting is available for the following voltages 110 V and 230 V AC 24 V DC The delay time setting is 100 200 ms The device can be screw mounted or attached to a 35 mm DIN rail You will find a circuit diagram in section Time delay device for undervoltage releases in chapter Accesso...

Страница 165: ...hich affect the operational safety of electrical installations can be avoided Contents The chapter discusses the following topics General information about cables and busbars Portfolio of connection components for 3VA molded case circuit breakers with Front cable connection Front busbar connection cable lug connection Rear busbar connection cable lug connection Further connection accessories 4 3 1...

Страница 166: ...ns with low curvature bending radii and in fixed or inflexible installations The flexible conductors of classes 5 and 6 are suitable for high curvature cable bending radii The cable conductors used in low voltage power distribution installations mainly belong to classes 1 2 5 and 6 Cables with solid conductors in class 1 used for these applications normally have a cross section of 16 mm or less Pl...

Страница 167: ... must be stripped carefully to ensure that the correct amount of insulating material is removed If too much material is removed it will not be possible to make a secure connection between the cable and cable lug or wire end ferrule Compression cable lugs compliant with DIN 46235 have ideal heat transfer characteristics for connecting busbar connectors By contrast Tubular cable lugs with narrow pal...

Страница 168: ...nding radii which are unsuitable for cables of large cross section Lack of space Heat dissipation air circulation Rigid and in some cases flexible busbars are used in the examples of applications listed above Rigid busbars are made of copper or aluminum Pre punched aluminum busbars some of which are threaded are often used Flexible busbars are chosen for applications which demand a high degree of ...

Страница 169: ...filled To meet this objective an extensive portfolio of connection components is available Box terminal Front connection bars edgewise Circular conductor terminal with auxiliary conductor terminal Front connection bars broadened Circular conductor terminal Front connection bars extended Circular conductor terminal large with auxil iary conductor terminal Lug terminal Circular conductor terminal la...

Страница 170: ...Terminal cover Insulating plate broadened Terminal cover extended Phase barriers Terminal cover broadened Auxiliary conductor terminal for busbars Insulating plate Auxiliary conductor terminal for box terminal The table below lists all the main conductor connection systems available for 3VA molded case circuit breakers and also indicates which type of cables or busbars are compatible which each co...

Страница 171: ...Accessories 4 3 Connection system 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 171 1 A box terminal can be installed at the lug terminal to allow a cable to be connected directly ...

Страница 172: ...n all molded case circuit breakers equipped with draw out technology The connection components described above are identical for fixed mounted breakers for plug in and for draw out versions Connection technology available from or installed at the factory All 3VA molded case circuit breakers are available as standard with a lug terminal clip in nut and clamping screw at the infeed and load ends For...

Страница 173: ...usbars as well as cables Connection technology Cables and busbars Box terminal Solid conductor class 1 Circular conductor terminal with auxiliary conductor terminal Stranded conductor class 2 Circular conductor terminal Flexible conductors classes 5 and 6 Circular conductor terminal large with auxil iary conductor terminal Sector shaped conductors Circular conductor terminal large Flexible busbars...

Страница 174: ...case circuit breakers up to size 160A The 3VA breaker is then shipped with preassembled box terminals A special terminal can be installed to provide an auxiliary conductor connection For further information please refer to chapter Auxiliary conductor terminal Page 199 In addition to directly connected cables flexible busbars can also be connected to box terminals The tables below show all the type...

Страница 175: ...terminals are technically identical i e the same cable cross sections can be connected to both variants Note All auxiliary conductor terminals included in the 3VA molded case circuit breaker portfolio have a maximum current carrying capacity of 6 A Suitable cable cross sections Cables with a maximum cross section up to 2 5 mm2 can be connected The circular conductor terminal is an internal compone...

Страница 176: ... case circuit breakers 176 Manual 04 2015 A5E03603177010 02 3VA1 molded case circuit breakers 3VA2 molded case circuit breakers Circular conductor terminals with or without auxiliary conductor terminal can be ordered as a pack of 3 as a pack of 4 ...

Страница 177: ...able cable cross sections Cables with a maximum cross section up to 2 5 mm2 can be connected The circular conductor terminal large is an external terminal i e it projects beyond the external contour of the breaker s termination area This means that cables with a larger cross section can be connected The extended terminal cover plus the required assembly materials are supplied as standard with all ...

Страница 178: ... maximum current carrying capacity of 6 A Suitable cable cross sections Cables with a maximum cross section up to 2 5 mm2 can be connected The circular conductor terminal 2 cables is an external terminal i e it projects beyond the external contour of the breaker s termination area The 2 cable capacity of the terminal allows cables with large cross sectional area to be connected The extended termin...

Страница 179: ...old up to 6 cables One of the six bores in the terminal can be used to implement an auxiliary conductor terminal The extended terminal cover plus the required assembly materials are supplied as standard with all circular conductor terminals 6 cables This isolates the termination area providing degree of protection IP4x at the front of the molded case circuit breaker and degree of protection IP2x a...

Страница 180: ...es 4 3 Connection system 3VA molded case circuit breakers 180 Manual 04 2015 A5E03603177010 02 3VA2 molded case circuit breakers Circular conductor terminals 6 cables can be ordered as a pack of 3 as a pack of 4 ...

Страница 181: ... The diagram below illustrates all the components available for implementing a busbar or cable lug connection on the front panel of the 3VA molded case circuit breaker Connection technology Cables and busbars Front connection bars edgewise Busbars Front connection bars broadened Flexible busbars Front connection bars extended Cable lugs Lug terminal ...

Страница 182: ...he jumper lug of the 3VA molded case circuit breaker A special terminal can be installed to provide an auxiliary conductor connection For further information please refer to chapter Auxiliary conductor terminal Page 199 The table below provides an overview of the minimum and maximum sizes of cables and busbars which can be connected by a lug terminal Lug terminals can be ordered as a pack of 3 as ...

Страница 183: ...r All front connection bars extended are supplied as standard with phase barriers to provide insulation between individual phases see chapter Insulating equipment Page 191 A special terminal can be installed to provide an auxiliary conductor connection For further information please refer to chapter Auxiliary conductor terminal Page 199 The table below provides an overview of the minimum and maxim...

Страница 184: ...he molded case circuit breaker All front connection bars broadened are supplied as standard with phase barriers to provide insulation between individual phases see chapter Insulating equipment Page 191 A special terminal can be installed to provide an auxiliary conductor connection For further information please refer to chapter Auxiliary conductor terminal Page 199 The table below provides an ove...

Страница 185: ...are fitted All front connection bars edgewise are supplied as standard with phase barriers to provide insulation between individual phases see chapter Insulating equipment Page 191 A special terminal can be installed to provide an auxiliary conductor connection For further information please refer to chapter Auxiliary conductor terminal Page 199 The table below provides an overview of the minimum ...

Страница 186: ...cable lug connections The diagram below illustrates all the components available for implementing a busbar or cable lug connection on the rear panel of the 3VA molded case circuit breaker Connection technology Cables and busbars Lug terminal right angled Busbars Rear connecting stud Flexible busbars Rear terminal flat Cable lugs ...

Страница 187: ...he rear Note Right angled lug terminals may only be connected to phases 1 3 and 5 top terminals owing to the gases expelled by 3VA molded case circuit breakers In addition a box terminal can also be attached to the right angled lug terminal allowing direct connection of a cable All right angled lug terminals are supplied as standard with phase barriers to provide insulation between individual phas...

Страница 188: ...s 188 Manual 04 2015 A5E03603177010 02 The table below provides an overview of the minimum and maximum sizes of cables and busbars which can be connected by means of the right angled lug terminal Right angled lug terminals can be ordered as a pack of 3 as a pack of 4 ...

Страница 189: ... 3VA molded case circuit breaker The dimensions of rear connecting studs are given in the table below Rear connecting studs can be ordered as a pack of 3 2 short studs and 1 long stud as a pack of 4 2 short studs and 2 long studs as a pack of 1 1 short stud as a pack of 1 1 long stud Note In order to achieve degree of protection IP40 terminal covers flat version must also be attached when a rear c...

Страница 190: ... of 45 i e it can be installed an an angle of 0 45 or 90 The dimensions of rear terminals flat are given in the table below Rear terminals flat can be ordered as a pack of 3 2 short terminals flat and 1 long terminal flat as a pack of 4 2 short terminals flat and 2 long terminals flat as a pack of 1 1 short terminal flat as a pack of 1 1 long terminal flat Note In order to achieve degree of protec...

Страница 191: ...3 1 Insulating equipment The portfolio of connection accessories includes a broad range of insulating equipment The diagram below provides an overview of insulation accessories available for 3VA molded case circuit breakers Terminal cover Terminal cover extended Terminal cover broadened Insulating plate Insulating plate broadened Phase barriers ...

Страница 192: ...om the mounting plate Phase barriers are compatible with Box terminal Circular conductor terminal Front connection bar extended included in scope of supply Front connection bar broadened included in scope of supply Front connection bar edgewise included in scope of supply Lug terminal right angled included in scope of supply Other insulation accessories Insulating plate or insulating plate broaden...

Страница 193: ...ng on the inside face which can be drilled through before the cover is installed A voltage detector can be inserted through this bore to test for safe isolation WARNING Reduced degree of protection If a hole is drilled through the terminal cover degree of protection IP40 is no longer afforded Suitable precautions must be taken to safeguard against any hazards posed by this loss of protection Marki...

Страница 194: ...ont half pushed over the molded case circuit breaker from the front The insulating plate is fitted to the rear panel of the molded case circuit breaker and then secured by 2 screws to the front half of the terminal cover The extended terminal cover is also secured by 2 additional screws to the molded case circuit breaker itself The extended terminal cover is compatible with Circular conductor term...

Страница 195: ...nal cover is also secured by 2 additional screws to the molded case circuit breaker itself The broadened terminal cover is compatible with Front connection bars broadened Insulating plate and broadened insulating plate In certain cases it may be necessary to provide insulation from the cubicle mounting plate The insulating plates for the 3VA molded case circuit breakers are designed for this purpo...

Страница 196: ...0 2AA0 The order number for the side plate is 3VA9112 0SG20 DC insulating plate A DC insulating plate must be installed on 3 pole and 4 pole molded case circuit breakers for some applications Ue 415 V AC For IT system applications and entry of incoming feeder cables through the bottom panel of the circuit breaker with non insulated mounting plate Ue 250V DC with non insulated mounting plate For fu...

Страница 197: ...Accessories 4 3 Connection system 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 197 Insulating equipment ...

Страница 198: ...alled and wired correctly Non insulated cables and busbars With non insulated cables and busbars and front connection bars extended or front connection bars broadened the unit is classed as finger safe IP2X if it is also equipped with an extended or broadened terminal cover This protection is guaranteed only if the unit is installed and wired correctly External circular conductor terminals Externa...

Страница 199: ... account at the breaker planning stage Suitable cable cross sections Cables with a maximum cross section up to 2 5 mm2 can be connected All circular conductor terminals can be ordered with auxiliary conductor terminal under a separate article number The circular conductor terminal is then supplied with a bore for the auxiliary conductor terminal A ring lug can be installed in this bore The screw r...

Страница 200: ...ductor terminal is installed at the 3VA molded case circuit breaker with the busbar It can also be installed using Front connection bars extended Front connection bars broadened Front connection bars edgewise Lug terminals right angled The following connections can be selected for the auxiliary conductor pickoff Bare conductor Wire end ferrule Ring lug Cable lug connector ...

Страница 201: ...f the main circuits are connected directly to the 3VA molded case circuit breaker by various terminals or connectors A rigid permanent connection is thus created between the 3VA molded case circuit breaker and the cubicle With certain applications such as those where regular maintenance and overhaul of circuit breakers is required for example it must be possible to replace the 3VA molded case circ...

Страница 202: ...e less expensive and more space saving of the two solutions The 3VA molded case circuit breaker is inserted in the appropriate plug in socket and fitted with plug in contacts which make a keyed friction locked connection with the corresponding mating contacts tulip type contacts in the plug in socket In this case the device is plugged in and withdrawn manually ...

Страница 203: ... support bolts are bolted to the sides of the 3VA molded case circuit breakers In this case the mating contacts are in the draw out socket This is also equipped with a guide mechanism via which the molded case circuit breaker is moved into the draw out socket by means of a crank handle in order to connect the breaker to the main circuits The operator can clearly read from a position indicator whet...

Страница 204: ...of arcs between contacts and irreparable damage to circuit breakers and installation When the 3VA molded case circuit breaker is moved into or out of the socket when the main contacts are closed breaker position ON arcs can form between contacts and result in irreparable damage to the circuit breaker or the electrical installation and possibly cause physical injury to personnel Do not move the 3VA...

Страница 205: ...ed mounting as a plug in version and a draw out version as shown in the table below Apart from the complete kit for plug in or draw out technology a plug in or draw out conversion kit for the 3VA molded case circuit breaker can be ordered as a separate item These conversion kits are used to prepare 3VA molded case circuit breakers in advance so that ready assembled units are available at short not...

Страница 206: ...is design feature is that all terminal and connection variants of the 3VA molded case circuit breaker are fully compatible with the corresponding plug in or draw out unit To facilitate the ordering process the components used in combination with plug in and draw out units have been given separate article numbers Furthermore an optional terminal cover for the molded case circuit breaker can also be...

Страница 207: ...with each complete kit for plug in or draw out technology 4 fastening bolts metric thread Phillips pan head The fastening bolts are used to attach the relevant socket unit to a mounting plate or supporting stay Sets of fastening bolts can also be ordered separately as spare parts Fastening bolts with an inch thread are also available Mounting positions The permissible mounting positions are descri...

Страница 208: ...Applications The plug in versions of 3VA molded case circuit breakers are designed for use in complex applications for which speedy replacement of molded case circuit breakers is a basic requirement Plug in technology can be used for example when clear visual evidence of safe electrical isolation of circuits is essential e g when overhaul work is in progress Description ...

Страница 209: ... version of a 3VA molded case circuit breaker or 3VA switch disconnector to a plug in version A complete kit for plug in technology contains Plug in socket 4 fastening bolts for installing the socket in the cubicle 4 fastening bolts for securing the 3VA molded case circuit breaker in the plug in socket Plug in contacts for attachment to the main terminals of the 3VA molded case circuit breaker 3 p...

Страница 210: ...3VA switch disconnector in molded case circuit breaker design For 3 pole version up to 250 A 2 assembly bolts For 3 pole version up to 630 A and 4 pole version 4 assembly bolts Plug in contacts for attachment to the main terminals of the 3VA molded case circuit breaker 3VA molded case circuit breaker Screw mounted terminal cover for the molded case circuit breaker Autotrip plunger ...

Страница 211: ...tion When a 3VA molded case circuit breaker is converted to a 3VA plug in unit this plunger is installed from the rear of the device and latched The plunger performs safety functions in operation It prevents the molded case circuit breaker from being switched to the ON position if the breaker is not correctly bolted to the socket For further information see also section Signal Plug in unit MCCB co...

Страница 212: ...lf is attached to the underside of the molded case circuit breaker and electrically connected to the internal accessories Appropriate openings and cable ducts are provided in the molded case circuit breaker for routing stranded wires The plug in socket half of the auxiliary circuit connector is inserted in the socket and electrically connected to the customer s installation When the molded case ci...

Страница 213: ...further information please refer to chapter Position signaling switches Page 225 Padlocks for preventing insertion of a molded case circuit breaker The socket unit can be locked by padlocks to prevent the insertion of a 3VA molded case circuit breaker while maintenance or overhaul work is in progress Using these locks to prevent insertion and operation of a molded case circuit breaker helps to pro...

Страница 214: ...s Remote signaling of molded case circuit breaker positions INSERTED The 3VA molded case circuit breaker is properly inserted and bolted to the socket WITHDRAWN The bolts have been removed and the 3VA molded case circuit breaker removed Plug in socket can be locked by padlocks to prevent insertion of a molded case circuit breaker Degree of protection IP20 at all termination points No grounding req...

Страница 215: ...visual evidence of safe electrical isolation of plant sections must be provided at short notice so that work can commence Draw out versions of 3VA molded case circuit breakers are also suitable for applications which require that molded case circuit breakers or switch disconnectors can be replaced very rapidly when necessary In the draw out version the 3VA molded case circuit breaker is supported ...

Страница 216: ...a white background When the breaker is in this position its main contacts cannot be closed if the autotrip plunger is correctly installed see below Move the molded case circuit breaker into a defined position Note If the switch position indication is CONNECT TEST or DISCON the sliding clutch of the crank gear is engaged and rotation of the crank handle has no effect By removing and reinserting the...

Страница 217: ...l components required to guide the molded case circuit breaker into and out of the socket under the control of a crank handle 4 fastening bolts for installing the socket in the cubicle Plug in contacts for attachment to the main terminals of the 3VA molded case circuit breaker 3 pole 6 plug in contacts 4 pole 8 connectors Side walls with guide bolts for mounting on the molded case circuit breaker ...

Страница 218: ...3 pole 6 plug in contacts 4 pole 8 plug in contacts Side walls with guide bolts for mounting on the molded case circuit breaker Autotrip plunger 2 screw mounted terminal covers for the 3VA molded case circuit breaker Plug in contacts for attachment to the main terminals of the 3VA molded case circuit breaker Side walls with guide bolts for mounting on the molded case circuit breaker Screw mounted ...

Страница 219: ...gy WARNING Make sure that the autotrip plunger is correctly installed The molded case circuit breaker cannot be safely moved into or out of the socket without an autotrip plunger Moving it into or out of the socket when the main contacts are closed breaker position ON can cause arcs to form between contacts and result in irreparable damage to the circuit breaker or the electrical installation and ...

Страница 220: ...th the movable telescopic rail is inserted in the socket and electrically connected to the customer s installation When the molded case circuit breaker is inserted into the draw out unit an electrical connection between the internal accessories in the breaker and the customer s installation is quickly established Note Plug in and draw out units use different versions of the auxiliary circuit conne...

Страница 221: ... unit on the right side panel of the draw out socket The plastic frame is simple to pull out The crank handle opening is mechanically sealed when the plastic frame is in the OUT position Openings for padlocks in plastic frame Up to 3 padlocks Shackle diameter 8 mm 3 8 inch Attach padlocks 1 Move the molded case circuit breaker into the CONNECT TEST or DISCON position The breaker must be in one of ...

Страница 222: ...osition signaling switch 3VA9987 0KB00 in the right hand side panel of the draw out socket This switch signals whether the plastic frame described above is in the IN or OUT position For further details refer to chapter Position signaling switches Page 225 Integration of molded case circuit breaker position signal into a communication network The COM800 breaker data server can be used to interrogat...

Страница 223: ...on or off when the cubicle door is not open This is made possible by a cutout in the cubicle door which allows access to the main control elements i e the handle and the PUSH TO TRIP button of the molded case circuit breaker but prohibits access to other live components inside the cubicle This solution is referred to as a door feedthrough Door feedthroughs are mounted on the front of the molded ca...

Страница 224: ... of draw out technology Defective molded case circuit breakers can be replaced quickly and easily Clear visual evidence of safe electrical isolation of main circuits Molded case circuit breaker and accessories can be function tested in the TEST position Remote signaling of molded case circuit breaker positions CONNECT TEST and DISCON Padlocks and or cylinder locks can be used to lock draw out unit...

Страница 225: ... These auxiliary switches are capable of signaling a variety of states via electrical connections The position signaling switch is available in only one version Applications Signal Position of breaker in the draw out unit Signal Draw out unit locked open Signal Plug in unit MCCB correctly bolted to plug in socket The position signaling switches are changeover switches i e they have three terminals...

Страница 226: ...a or 41b Detects position CONNECT 42a or 42b Detects position TEST 43a or 43b Detects position DISCON Signal Position of molded case circuit breaker in the draw out unit It is irrelevant whether the position signaling switch is inserted in slot a or b The other slots can be used for the signaling switches supplied with the communications interface kit or for an additional position signaling switch...

Страница 227: ...molded case circuit breaker is either off position OFF contacts open or tripped position TRIP contacts open The breaker main contacts cannot be closed with the breaker in the UNBLOCK state Depending on the position of the molded case circuit breaker in the draw out unit the outputs of the position signaling switches assume one of the following states Signal Draw out unit locked open Slot for posit...

Страница 228: ...er lock available as retrofit component The position of the molded case circuit breaker cannot be changed when the draw out is locked In the locked state the opening for the crank handle is mechanically sealed and the handle cannot be inserted To lock the unit using padlocks the padlock locking unit on the draw out unit must be pulled out manually so that the shackles of the padlocks can be insert...

Страница 229: ...tch of the plug in socket Mechanical system for actuation of position signaling switches when the bolt is tightened Bolt hole which determines the signal output by the position signaling switches With this application the position signaling switches indicate whether the molded case circuit breaker is inserted in the plug in socket and secured by at least one bolt The reason for this application is...

Страница 230: ...Attaching the cable set 1 Insert the 3 position signaling switches of the cable set in the right hand side wall according to the color coding of the cables see diagram below It is irrelevant whether the switches are inserted in slots a or b CONNECT Position signaling switch with green cables TEST Position signaling switch with blue cables DISCON Position signaling switch with red cables The remain...

Страница 231: ...ow to transfer data via the remote transmission link please refer to the Operating Instructions for the COM800 breaker data server Auxiliary circuit connector Plug in technology Draw out technology Auxiliary circuit connectors are required only if the molded case circuit breaker to be converted to plug in or draw out technology is equipped with internal accessories Plug in units use a different de...

Страница 232: ...or Cable cage Cable cages are used to attach the breaker end half of the auxiliary circuit connector to the underside of the molded case circuit breaker Slot numbers are also printed on the cable cages The design of the cable cages for the top and bottom halves of the molded case circuit breaker is different so that the cages cannot be mixed up or installed in the wrong position The fixing tongues...

Страница 233: ...ing instructions for the complete kits for plug in or draw out technology See also Cable cage Page 235 Door feedthrough Door feedthroughs must be installed for applications which require direct operation of a molded case circuit breaker even when the cubicle door is closed the draw out version of a molded case circuit breaker to be electrically isolated from or connected to the installation while ...

Страница 234: ... the termination area of plug in and draw out units Two screw mounted terminal covers are included in the complete kits and the conversion kits for plug in and draw out technology These feature molded grips to ease withdrawal of the molded case circuit breaker from its socket Since it requires significant force to remove a molded case circuit breaker from its socket the plug in terminal covers are...

Страница 235: ... refer to chapter Auxiliary circuit connector Page 231 Cable cages consist of a top half and a bottom half These parts are designed such that they cannot be mounted in the wrong position at the rear of the molded case circuit breaker Cable cages are included in the scope of supply of the conversion kits and complete kits for converting molded case circuit breakers to plug in or draw out units and ...

Страница 236: ...3VA molded case circuit breakers 236 Manual 04 2015 A5E03603177010 02 4 4 7 2 Overview of technical specifications Technical specifications of the accessories for internal components of molded case circuit breakers in plug in and draw out technology ...

Страница 237: ...mmunication module A molded case circuit breaker which requires a communications interface to transfer signals must be equipped with a COM060 communication module When internal accessories are integrated in a molded case circuit breaker auxiliary circuit connectors and cable cages for plug in and draw out technology must also be installed Door feedthroughs are required only if the molded case circ...

Страница 238: ...s available for 3VA molded case circuit breaker are listed below Front mounted rotary operator optionally with door interlock Door mounted rotary operator Fixing bracket for long shafts Variable depth adapter for draw out units Supplementary handle for door mounted rotary operator Side wall mounted rotary operator optionally with mounting plate The following accessories are available for all manua...

Страница 239: ...03177010 02 239 4 5 1 Opening closing and resetting the 3VA molded case circuit breaker Opening and closing To close the 3VA molded case circuit breaker Turn the manual operator to the ON I position To open the 3VA molded case circuit breaker Turn the manual operator to the OFF O position ...

Страница 240: ...matically from the ON I to the TRIP position The molded case circuit breaker remains in the tripped state until the manual operator is reset 1 Clear the fault which has caused the molded case circuit breaker to trip 2 Turn the manual operator counter clockwise to the limit stop RESET position just beyond OFF O The manual operator remains in the OFF O position 3 Turn the manual operator to the ON I...

Страница 241: ...perator is available in two versions With door interlock Without door interlock Front mounted rotary operator with door interlock Cylinder lock device Front mounted rotary operator without door interlock Switching position indicator see below Device for up to 3 padlocks Handle with device for up to 3 padlocks Door interlocking elements Trip unit button PUSH TO TRIP ...

Страница 242: ...front mounted rotary operator with door interlock projects through the cubicle door This arrangement ensures that the molded case circuit breaker can be switched on only when the control cabinet door is closed The door is locked automatically when the front mounted rotary operator is turned to position ON I Overriding the door interlock The door interlock can be overridden by a deliberate action T...

Страница 243: ...ure 1 Turn the front mounted rotary operator to position ON I in order to close the molded case circuit breaker 2 Press the button PUSH TO TRIP with a tool such as a screwdriver The front mounted rotary operator moves from position ON I to position TRIP The molded case circuit breaker is now in the tripped state 3 Turn the front mounted rotary operator counter clockwise to the limit stop RESET pos...

Страница 244: ...operate the molded case circuit breaker through the control cubicle door without opening the door Door mounted rotary operator Switching position indicator ON TRIP mounting position OFF RESET For mounting position see chapter Front mounted rotary operator Page 241 Handle with device for up to 3 padlocks Tolerance compensator Device for up to 3 padlocks Cylinder lock device Trip unit button PUSH TO...

Страница 245: ...turned to position ON I Overriding the door interlock The door interlock can be overridden by a deliberate action This means that the door can be opened with the operator in position ON I so that maintenance can be carried out for example It is also possible to disable the door interlock completely For details see the Operating Instructions 3ZW1012 0VA01 4DA0 Procedure 1 Press the door interlockin...

Страница 246: ...0 02 Tolerance compensator Door mounted rotary operators are supplied as standard with a tolerance compensator This device compensates any potential minor offset between the rotary switch of the cubicle doors and the shaft of the door mounted rotary operator Tolerance compensator Offset compensator ...

Страница 247: ...ose the molded case circuit breaker Alternatively the supplementary handle for the door mounted rotary operator can also be used to close the breaker 4 Press the button PUSH TO TRIP with a tool such as a screwdriver The door mounted rotary operator moves from position ON I to position TRIP The molded case circuit breaker is now in the tripped state 5 Turn the door mounted rotary operator counter c...

Страница 248: ...berate action is required to turn the molded case circuit breaker to the ON I position 1 Push in the supplementary handle 2 Turn the supplementary handle to the ON I position in order to close the molded case circuit breaker Variable depth adapter The variable depth adapter can be installed to compensate the distance traveled between the TEST and DISCON positions with draw out units With this devi...

Страница 249: ...ircuit breaker to be operated through the right hand or left hand side wall of the cubicle Side wall mounted rotary operator Handle with device for up to 3 padlocks Side wall of cubicle Device for up to 3 padlocks Device for cylinder lock Trip unit button PUSH TO TRIP Switching position indicator ON TRIP mounting position OFF RESET For mounting position see chapter Front mounted rotary operator Pa...

Страница 250: ...ary operator is available in a version with mounting plate for molded case circuit breakers up to 250 A The mounting plate can be installed on the right hand or left hand side panel The space on the mounting plate can be used to install other components If there is insufficient space available on the mounting plate to install terminals a terminal plate can be bolted to the cubicle ...

Страница 251: ...5 5 1 Locking by the handle The following manual operators can be locked by the handle Front mounted rotary operator Door mounted rotary operator Side wall mounted rotary operator Up to three padlocks with a shackle diameter of between 5 and 8 mm can be used to lock the rotary operators Padlocks are not included in the scope of supply Front mounted rotary operator Lockable switching positions Posi...

Страница 252: ... closed nor can the cubicle door be opened The door interlock cannot be overridden Position ON I Possible only if the door mounted rotary operator or the side wall mounted rotary operator has been modified accordingly during installation Note No impairment of protection functions Locking the rotary operators in the ON I position does not impair the protective functionality of the molded case circu...

Страница 253: ...and 8 mm or by means of cylinder locks type Ronis Manual operators can be interlocked only by means of cylinder locks type Ronis In addition door mounted rotary operators and side wall mounted rotary operators can also be locked or interlocked by additional cylinder locks type Kaba at the masking frame in the cubicle door or side panel Padlocks and cylinder locks are not included in the scope of s...

Страница 254: ...nder lock insert for interlocking it is possible to establish a mutual interlock between an unlimited number of rotary operators This requires that the keys of all molded case circuit breakers locked in the open position are removed from the lock and stored in a safe place Only the key of the rotary operator which is in the ON I position is left in the cylinder lock This key cannot be removed whil...

Страница 255: ...03603177010 02 255 Locking with cylinder lock Kaba The door mounted rotary operator and the side wall mounted rotary operator can be locked by means of a cylinder lock type Kaba fitted in the cubicle door or side panel The cylinder lock type Kaba is not included in the scope of supply ...

Страница 256: ...hree 3VA molded case circuit breakers For this purpose Bowden cable modules are fitted in the manual operator Possible combinations of breaker positions When a Bowden cable interlock is installed for two manual operators the two interlocked 3VA molded case circuit breakers can assume the following positions When a Bowden cable interlock is installed for three manual operators the three interlocked...

Страница 257: ...Accessories 4 5 Manual operators 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 257 Interlocks can be implemented between the following 3VA molded case circuit breakers ...

Страница 258: ...ion When fitted with an escutcheon see illustration below a front mounted rotary operator installed in the cubicle door has degree of protection IP30 Note To ensure that the control cabinet door can still be opened the front mounted rotary operator must not project over the cover frame by more than 5 mm when the door is closed ...

Страница 259: ...e handle of the front mounted operator of the door mounted rotary operator or side wall mounted rotary operator lights up to indicate the switching position of the circuit breaker The illumination kit can be ordered with the operator as a pre assembled accessory or individually as a retrofit component The illumination kit operates on a 24 V DC supply Its power consumption is 0 16 W ...

Страница 260: ...ded case circuit breaker The source of commands transmitted via electrical control cables can be a pushbutton or a PLC for example Motor operators must also used in conjunction with automatic transfer control devices Motor operator MO320 Trip unit button PUSH TO TRIP Characteristic data of the molded case circuit breaker Handle for manual operation LED TRIP Seal Switching position indicator ON OFF...

Страница 261: ...O320 features a switching position indicator and an LED labeled TRIP With its clear switching position indication the motor operator MO320 meets the requirements pertaining to isolating features stipulated by IEC EN 60947 1 Switching position indication on the front panel LED status displays See also chapter Faults causes of faults and rectification of faults Page 267 ...

Страница 262: ...ion of the handle AUTO When the plastic window is closed the motor operator MO320 is in AUTO mode The motor operator can be operated via control cables e g in response to signals issued by a pushbutton or by control commands output by a PLC LOCK The motor operator can be locked in the OFF O position to prevent reclosure of the breaker The padlock locking device snaps out if the slide above it is m...

Страница 263: ...ing and closing in MANUAL mode The plastic window is open the motor operator is in MANUAL mode The supply to the LEDs is also disconnected but the motor operator remains fully operational Close the 3VA molded case circuit breaker Turn the handle clockwise until the switching position indicator displays ON I The molded case circuit breaker is now ON I The main contacts are closed ...

Страница 264: ...case circuit breaker can be closed or opened only under the control of electrical signals Close the 3VA molded case circuit breaker by means of an electrical ON signal at the terminal block The molded case circuit breaker is ON I The main contacts are closed The switching position indicator on the front panel of the motor operator displays ON I Open the 3VA molded case circuit breaker by means of ...

Страница 265: ... mode setting The method by which the 3VA molded case circuit breaker is reset by the motor operator depends on the selected reset mode Reset modes The reset mode can be selected After the molded case circuit breaker has tripped the selected reset mode determines the response of the motor operator in the TRIP position Motor operator response to tripping of the 3VA molded case circuit breaker depen...

Страница 266: ...Circuit diagrams Page 423 The M0320 motor operator is edge controlled i e it reacts only to the positive edge of an ON or OFF command at the relevant terminals 3 and 4 In this case the OFF signal is dominant i e the motor operator will be switched off in response to an OFF edge even if an ON signal is applied The MO320 requires a pause period of 80 ms between the end of an OFF signal and the edge ...

Страница 267: ...Accessories 4 6 Motor operators 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 267 4 6 1 3 Faults causes of faults and rectification of faults ...

Страница 268: ...Accessories 4 6 Motor operators 3VA molded case circuit breakers 268 Manual 04 2015 A5E03603177010 02 4 6 2 Technical specifications Motor operator MO320 ...

Страница 269: ...case circuit breakers in the OFF O or ON I position A molded case circuit breaker cannot be operated when it is locked Locking a molded case circuit breaker in the OFF O position In order to prevent closure of a 3VA molded case circuit breaker it can be locked in the OFF O position by a padlock Once it is locked the 3VA molded case circuit breaker is safely locked in the OFF O position It can be u...

Страница 270: ...on The TRIP function i e the protective functionality of the 3VA molded case circuit breaker is not affected by locking the breaker in the ON I position In the event of a fault the 3VA molded case circuit breaker trips in the normal way 4 7 1 2 Interlocking The available interlocking devices can be used to implement a mutual interlock between at least two 3VA molded case circuit breakers The inter...

Страница 271: ...se circuit breakers Front interlock Rear interlock Front interlock All front interlocks are installed on the front panel of the 3VA molded case circuit breaker Front interlocks make it impossible to install some other external accessories such as motor operator rotary operators etc They also partially restrict access to internal accessories compartments Rear interlock The rear interlock does not a...

Страница 272: ...lded case circuit breaker 4 7 2 1 Padlock device for the handle The padlock device for the handle is directly attached to the handle of the 3VA molded case circuit breaker and latched in place Note For installation instructions please refer to operating instructions Padlock device for the handle When the padlock device for the handle is installed the 3VA molded case circuit breaker can be locked i...

Страница 273: ... and 250 A have a cover size of 45 mm They are therefore suitable for installation in INSTA distribution boards Installation of other accessories When the padlock device for the handle is fitted some other accessories cannot be installed see chapter Possible combinations of of accessories Page 142 4 7 2 2 Cylinder locks for locking the 3VA molded case circuit breaker The 3VA molded case circuit br...

Страница 274: ...fferent cylinder lock numbers are required for multiple locks they can be selected from the predefined article numbers stated in the catalog One adapter kit The adapter kit transfers the motion of the lock to the switching mechanism The article number includes the adapter kit and two cylinder lock housings One cylinder lock housing locking is used for locking applications and the other housing int...

Страница 275: ...linder lock housing for locking Actuating lever Cylinder lock type Ronis Lid of accessories compartment 1 Remove the lid of the accessories compartment from the 3VA molded case circuit breaker 2 Drill a hole through the lid at the position marked on the rear face and smooth down the drilled surface with a file 3 Insert a cylinder lock type Ronis and the locking version of the cylinder lock housing...

Страница 276: ...rther information can be found in the relevant operating instructions Use of cylinder locks type Ronis for other applications Cylinder locks type Ronis can also be used in the following applications For locking the racking distance in draw out units see chapter Draw out technology Page 215 For locking in the manual operators of the 3VA molded case circuit breaker see chapter Manual operators Page ...

Страница 277: ...artments not only to lock molded case circuit breakers see chapter Cylinder locks for locking the 3VA molded case circuit breaker Page 273 but also to implement mutual interlocks between an unlimited number of 3VA molded case circuit breakers The purpose of this system is to ensure that only one single 3VA molded case circuit breaker included in the interlock application can be in the ON I positio...

Страница 278: ...apter kit and two cylinder lock housings Slide for locking in the OFF position Slide for locking in the ON position Locking version of cylinder lock housing Interlocking version of cylinder lock housing In order to implement a mutual interlock between three 3VA molded case circuit breakers for example three cylinder locks type Ronis with the same lock number and 3 adapter kits suitable for the rel...

Страница 279: ...e the lid of the accessories compartment from the 3VA molded case circuit breaker 2 Drill a hole through the lid at the position marked on the rear face and smooth down the drilled surface with a file 3 Insert a cylinder lock type Ronis and the interlocking version of the cylinder lock housing in the drilled hole and connect it securely to the accessories compartment lid via the actuating lever 4 ...

Страница 280: ...nctioning of the interlock only 1 key is left in one circuit breaker included in the interlock arrangement This one key serves as the release instrument for only one molded case circuit breaker at a time 1 Move all 3VA molded case circuit breakers in the interlock arrangement to the OFF position and lock them turn the cylinder lock to the horizontal locked position 2 Remove all keys All 3VA molded...

Страница 281: ...Turn the cylinder lock to the vertical locked position and remove the key This 3VA molded case circuit breaker is now safely locked in the OFF O position and cannot be operated 3 Use the same key to turn the cylinder lock of the 3VA molded case circuit breaker to be released to the horizontal unlocked position 4 Move the handle of the released 3VA molded case circuit breaker to the ON I position I...

Страница 282: ...A mutual interlock between up to three molded case circuit breakers can be implemented by means of the front Bowden cable interlock This interlock functions according to the blocking principle If one of the circuit breakers included in the interlock is unlocked the Bowden cables move in such a way as to ensure that the other molded case circuit breakers are locked in the OFF O position In order to...

Страница 283: ...reaker at any one time As a result only one 3VA molded case circuit breaker at a time can be operated and only one molded case circuit breaker can be in the ON I position 3VA1 160 molded case circuit breaker blocked by slide 3VA2 250 molded case circuit breaker released by slide Note For installation instructions please refer to operating instructions Sliding bar modules Bowden cable lengths The f...

Страница 284: ...owden cable is installed to interlock two 3VA molded case circuit breakers the following combinations of handle position are possible When a sliding bar with Bowden cable is installed to interlock three 3VA molded case circuit breakers the following combinations of handle position are possible Installation of other accessories When the front Bowden cable interlock module is fitted some other acces...

Страница 285: ...s 2 Attach the locking slide securely to the two side plates Locking the handle The handle of the 3VA molded case circuit breaker to be locked is blocked when the locking slide is moved into position Up to three commercially available padlocks shackle diameter 4 5 to 8 mm can be fitted to lock the slide in position and prevent operation of the blocked handle The blocked 3VA molded case circuit bre...

Страница 286: ...th the sliding bar Interlocks can be implemented between the same rated current versions of molded case circuit breakers 3VA1 100 160 A with 3VA1 100 160 A 3VA2 100 160 250 A with 3VA2 100 160 250 A 3VA2 400 630 A with 3VA2 400 630 A Mutual interlocks can be implemented between the same sizes of all 2 pole 3 pole and 4 pole molded case circuit breakers Possible combinations of handle positions Whe...

Страница 287: ...iding bar interlock between three 3VA molded case circuit breakers is locked by padlocks the following combinations of handle position are possible Installation of other accessories When the front sliding bar is fitted some other accessories cannot be installed see chapter Possible combinations of of accessories Page 142 ...

Страница 288: ...en one molded case circuit breaker is closed the other circuit breaker is prevented from closing by a tappet which engages in the breaker mechanism directly from the rear panel of the molded case circuit breaker The rear interlock is provided by two interlocking modules which are attached at the rear of the molded case circuit breakers and behind the mounting plate The two interlocking modules are...

Страница 289: ...ounting accessories Interlocking rod Interlock combinations The following interlock combinations are possible All 3VA1 and 3VA2 molded case circuit breakers can be mutually interlocked Interlocks can be implemented between all sizes of breakers Mutual interlocks can be implemented between all 2 pole 3 pole and 4 pole molded case circuit breakers Handle positions When a rear interlock is installed ...

Страница 290: ...02 Aid to facilitate installation of rear interlock An installation aid is available for all 3VA molded case circuit breakers It facilitates installation of the rear interlock and reduces the amount of work required to the cubicle mounting plate Mounting plates specific to molded case circuit breaker DIN rail ...

Страница 291: ...tall rear interlock Bolt the DIN rails to the adapter plates 2 Bolt the assembled installation frame to the cubicle mounting plate No further work to the cubicle mounting plate is required The same rear interlock combinations can be implemented regardless of whether or not the installation aid is used Note For installation instructions please refer to the operating instructions for the rear interl...

Страница 292: ...hrough the plug in socket or the draw out socket Interlocking module Plug in or draw out socket Tappet extension Molded case circuit breaker The rear interlock for plug in or draw out units is available as a complete kit containing all the required components Two interlocking modules Mounting accessories Interlocking rod All the required tappet extensions An installation aid must be ordered separa...

Страница 293: ...y winding of a summation current transformer The evaluation electronics system monitors the induced voltage and transmits a trip command to the RCD trip unit if the trip criterion is fulfilled The molded case circuit breaker with residual current protection combination is designed to ensure that the molded case circuit breaker contacts open if the residual current exceeds a preset value 4 8 1 Port...

Страница 294: ...system to be monitored the modular residual current device MRCD is supplied from a 1 phase auxiliary voltage source internal or external The modular residual current device utilizes an undervoltage release UVR or a shunt trip The recommended applications for different RCD designs are thus as follows Suitable Less suitable Sizes Special BASIC residual current devices have been developed for use wit...

Страница 295: ...lectrical contacts Signal must be acknowledged via the RESET button on the residual current device Through hole technology allows connection of cables to circuit breaker s box terminals Electromagnetic release RCR with dual functionality Suitable for mounting on DIN rail Suitable for use as a display unit only Special characteristics There are two different functional types of side mounted residua...

Страница 296: ... plate Basic RCD320 and Basic RCD520 Features The key features of the RCD320 and RCD520 series are Type A Response current IΔn adjustable in 8 steps from 0 03 A to 5 A Compact design Cover size 45 mm 3 and 4 pole versions LEDs to signal ready state and pre alarms Tripped signal at device and via electrical contacts Signal must be acknowledged via the RESET button on the residual current device Sui...

Страница 297: ...bus communication system Graded alarm system Features The key features of the RCD820 series are Residual current devices available with ratings up to 630 A Type A Response current IΔn adjustable in 10 steps from 0 03 A to 30 A Delay time Δt adjustable in 10 steps from 0 to 10000 ms 3 and 4 pole versions LEDs to signal ready state pre alarms and communication status Auxiliary contacts for tripped s...

Страница 298: ...apter Modular residual current device Page 355 Further tested combinations available on request The key features of the MRCD are Digital modular residual current device type A compliant with IEC 60947 2 Annex M Response current IΔn adjustable in 7 steps from 0 03 A to 3 A Delay time Δt adjustable in 12 steps from 0 to 10 seconds Compact design Cover size 45 mm Suitable for 1 pole 2 pole 3 pole or ...

Страница 299: ...ers Manual 04 2015 A5E03603177010 02 299 4 8 1 1 Possible combinations of residual current devices and 3VA circuit breakers 3p 3 pole 4p 4 pole F Fixed mounted circuit breaker PI Plug in circuit breaker DO Draw out circuit breaker 1 Not compatible with switch disconnector ...

Страница 300: ...uipment combination is automatically downgraded to the lower electrical rating of the residual current device Example Ue 3VA1 690 V AC 3VA1 and Basic residual current device 480 V AC For more information refer to chapter Technical specifications Page 352 Residual current devices Standards The combination of molded case circuit breaker and residual current device conforms to IEC 60947 2 Annex B Pow...

Страница 301: ...l AC residual currents and pulsating DC residual currents Combination with external accessories DIN rail adapters DIN rail adapters are available as accessories for side mounted residual current devices RCD310 and RCD510 up to 160 A These permit fast and easy installation of residual current devices on 35 mm DIN rails compliant with IEC EN60715 TH35 7 5 and TH35 15 For further information please r...

Страница 302: ...number Maximum rated operational current rated operational voltage and frequency Rated insulation voltage and rated impulse strength Device type Transparent protective cover over setting buttons Location and date of manufacture Setting button for response current Only suitable for use in 3 phase systems LED ACTIVE and pre alarm Knowledge Manager Reset button tripped display Contact hazard protecti...

Страница 303: ...uency Rated insulation voltage and rated impulse strength Device type Transparent protective cover over setting buttons Location and date of manufacture Setting button for delay time Only suitable for use in 3 phase systems Setting button for response current Knowledge Manager LED ACTIVE and pre alarm Contact hazard protective cover over main current paths with sealing option Reset button tripped ...

Страница 304: ...ents Ready signals and alarms Ready signal of the residual current device The LED labeled ACT stands for ACTIVE and lights up when the device is ready to operate Pre alarm Both the Basic RCD310 and the Basic RCD510 feature an alarm LED labeled AL pre alarm which lights up promptly to indicate potential shutdown of the installation due to residual current ...

Страница 305: ... as a mechanical indication that the unit has tripped If a residual current is detected or the button TEST is pressed the button RESET is automatically released and so signals that the residual current device has tripped Even when the residual current device is at zero potential the RESET remains in the TRIP position Residual current device is operating nor mally and has not tripped Residual curre...

Страница 306: ...esting and resetting the residual current device Testing Depending on operating conditions the test button on the front panel of the residual current device should be pressed in order to function test the device The test button is labeled with the letter T If the test button is pressed the device is tested immediately irrespective of the current delay time setting If the test button is pressed a r...

Страница 307: ...eclose the main contacts of the molded case circuit breaker 1 Press the RESET button on the residual current device The tripped signal at the signaling contacts is canceled the residual current device is now reset 2 Reset and switch on the molded case circuit breaker or switch disconnector Note If the main contacts of the molded case circuit breaker switch disconnector are closed before the residu...

Страница 308: ...s latched in the setting range If the white setting arrow is resting between two setting ranges the residual current device trips instantaneously in response to residual currents The factory setting for the tripping delay is 0 ms The delay time is not adjustable on the RCD310 The RCD310 always trips instantaneously Recommended procedure for setting the response current and the delay time 1 Switch ...

Страница 309: ...zed access to the setting buttons for IΔn and Δt the transparent cover over the settings buttons can be optionally sealed Contact hazard protective cover over main current paths including sealing option After the residual current device RCD310 or RCD510 has been mounted on the 3VA1 molded case circuit breaker or 3VA1 switch disconnector a contact hazard protective cover is installed over the main ...

Страница 310: ...cated underneath a contact hazard protective cover Alarm switches TRIP IND TRIP INDICATOR A tripped signal can be output via the floating contact for display via a warning lamp for example This trip alarm switch operates as soon as the residual current exceeds the response current setting value and has therefore caused the residual current device to trip The standard trip alarm switch has changeov...

Страница 311: ...le of switching a 5 mA current with a voltage supply of 24 V DC The RCR functions as a shunt trip allowing the circuit breaker to be tripped by remote control External tripping of the molded case circuit breaker or switch disconnector via the RCR does not affect the residual current device In other words neither the tripped display on the residual current device nor the auxiliary contacts for the ...

Страница 312: ...VA molded case circuit breakers 312 Manual 04 2015 A5E03603177010 02 Status indicators The table below illustrates the behavior of pre alarm and tripped signals on RCD310 or RCD510 units in response to various user actions and residual currents ...

Страница 313: ...lded case circuit breakers Manual 04 2015 A5E03603177010 02 313 Terminal labeling and cable installation Labeling of terminals The labels for individual terminals are printed on the rear of the contact hazard protection cover for auxiliary contacts ...

Страница 314: ...verview of all approvals please refer to Appendix Page 505 For all queries relating to approvals please contact Technical Support Page 12 Technical specifications In A Specifies the highest permissible rated operational current of the molded case circuit breaker switch disconnector with which the residual current device may be combined Ue V Specifies the operating voltage range of the residual cur...

Страница 315: ...are required 1 Push the molded case circuit breaker switch disconnector onto the residual current device along the guides at the top 2 Push the molded case circuit breaker switch disconnector backwards until its rear panel is flush with the rear panel of the residual current device 3 Place the contact hazard protective cover over the circuit breaker RCD assembly 4 Attach the assembly to a mounting...

Страница 316: ... terminals of the molded case circuit breaker Phase barriers Summation current transformer With this technology the cables are simply guided through the summation current transformer and connected directly to the box terminals of the molded case circuit breaker or switch disconnector The phase barriers not only ensure safe operation but also serve as a guide for correct routing of cables ...

Страница 317: ...rcuit breaker or switch disconnector This release is installed in the accessories compartment to the left of the handle The RCR and the connecting cable are included in the scope of supply of the side mounted residual current device The release is connected to the RCR contacts on the residual current device via a plug in connection and receives a trip command if the residual current reaches or exc...

Страница 318: ...witch disconnector nor interrupt the circuit To operate the RCD310 or RCD510 as a pure display unit the residual current release RCR and its connecting cable are simply not installed The residual current device can perform all its normal functions e g status signaling in display mode Note Because the RCR and its connecting cable have not been installed the LED ACT flashes continuously Function ove...

Страница 319: ... 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 319 4 8 2 2 Loadside residual current devices Basic RCD320 and Basic RCD520 Loadside residual current devices are also available to order for 3VA1 molded case circuit breakers ...

Страница 320: ...ated operational voltage and frequency Standard Setting button for response current Approvals Transparent protective cover over setting buttons LED ACTIVE and pre alarm Test button test device Knowledge Manager Reset button tripped display Rated insulation voltage and rated impulse strength Auxiliary contacts Location and date of manufacture Contact hazard protective cover over main current paths ...

Страница 321: ...y Standard Setting button for delay time Approval Setting button for response current LED ACTIVE and pre alarm Transparent protective cover over setting buttons Knowledge Manager Test button test device Rated insulation voltage and rated impulse strength Reset button tripped display Location and date of manufacture Auxiliary contacts Device type Contact hazard protective cover over main current pa...

Страница 322: ...ents Ready signals and alarms Ready signal of the residual current device The LED labeled ACT stands for ACTIVE and lights up when the device is ready to operate Pre alarm Both the Basic RCD320 and the Basic RCD520 feature an alarm LED labeled AL pre alarm which lights up promptly to indicate potential shutdown of the installation due to residual current ...

Страница 323: ... as a mechanical indication that the unit has tripped If a residual current is detected or the button TEST is pressed the button RESET is automatically released and so signals that the residual current device has tripped Even when the residual current device is at zero potential the RESET remains in the TRIP position Residual current device is operating normally and has not tripped Residual curren...

Страница 324: ...issioned Testing and resetting the residual current device Testing Depending on operating conditions the test button on the front panel of the residual current device should be pressed in order to function test the device The test button is labeled with the letter T If the test button is pressed the device is tested immediately irrespective of the current delay time setting If the test button is p...

Страница 325: ...abeled with the letter R The following actions must be taken in order to reset the residual current device and reclose the main contacts of the molded case circuit breaker 1 Press the RESET button on the residual current device The tripped signal at the signaling contacts is canceled the residual current device is now reset 2 Reset and switch on the molded case circuit breaker Note The molded case...

Страница 326: ...s set as soon as the button is latched in the setting range If the white setting arrow is resting between two setting ranges the residual current device trips instantaneously in response to residual currents The factory setting for the tripping delay is 0 ms The delay time is not adjustable on the RCD320 The RCD320 always trips instantaneously Recommended procedure for setting the response current...

Страница 327: ...access to the setting buttons for IΔn and Δt the transparent cover over the settings buttons can be optionally sealed Contact hazard protective cover over main current paths and auxiliary contacts including sealing option After the residual current device RCD320 or RCD520 has been mounted on the 3VA1 molded case circuit breaker a contact hazard protective cover is installed over the main current p...

Страница 328: ... 04 2015 A5E03603177010 02 Terminals Note Cables for the following terminals must be routed separately from the main circuits Their maximum cable length is 300 m A number of auxiliary contacts which perform different functions are located underneath the contact hazard protective cover ...

Страница 329: ...es as soon as the residual current exceeds the response current setting value and has therefore caused the residual current device to trip The standard trip alarm switch has changeover contacts and screw type connections The terminal designations of the relevant contact are shown in the diagram below Status indicators The table below illustrates the behavior of pre alarm and tripped signals on RCD...

Страница 330: ...k For an overview of all approvals please refer to Appendix Page 505 For all queries relating to approvals please contact Technical Support Page 12 Technical specifications In A Specifies the highest permissible rated operational current of the molded case circuit breaker with which the residual current device may be combined Ue V Specifies the operating voltage range of the residual current devic...

Страница 331: ...rrent device backwards until its rear panel is flush with the rear panel of the molded case circuit breaker 4 Screw the molded case circuit breaker to the residual current device Special connecting screws are provided on the line side of the residual current device for this purpose 5 Place a contact hazard protective cover over the circuit breaker RCD assembly 6 Reinstall the loadside connection c...

Страница 332: ...ans of a direct acting tappet which engages in the breaker mechanism from the residual current device The electromagnetic trip unit is integrated in the residual current device Function overview The table below provides an overview of all the functions and data which are available in the residual current device environment Value can be read Value can be edited Command ...

Страница 333: ...Auxiliary contacts Article number Type designation Maximum rated operational current rated operational voltage and frequency LED ACTIVE communication pre alarm Setting button for response current Tripped display Transparent protective cover over setting buttons Knowledge Manager Test button test device Setting button for delay time Approval Rated insulation voltage and rated impulse strength Stand...

Страница 334: ...t device The LED labeled ACT stands for ACTIVE and lights up when the device is ready to operate Communication status The LED labeled COM stands for COMMUNICATION and indicates the communication status of the residual current device Pre alarms The Advanced RCD820 has two LEDs labeled AL1 ALARM 1 and AL2 ALARM 2 which light up successively or simultaneously to promptly indicate potential shutdown o...

Страница 335: ...Accessories 4 8 Residual current devices 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 335 LED displays ...

Страница 336: ...d or actuation of the test button the trip is signaled mechanically on the RCD i e by a rotating disk Residual current device is operating nor mally and has not tripped Residual current device has tripped Note In the case of infeed from below an auxiliary switch must be connected by means of auxiliary contacts CB S to ensure correct functioning of the tripped display for description see auxiliary ...

Страница 337: ...issioned Testing and resetting the residual current device Testing Depending on operating conditions the test button on the front panel of the residual current device should be pressed in order to function test the device The test button is labeled with the letter T If the test button is pressed the device is tested immediately irrespective of the current delay time setting If the test button is p...

Страница 338: ...maximum 30 A A residual current of type A is detected within the 0 03 A to 10 A range If the response current is set to 30 A the device detects only residual currents of type AC i e purely sinusoidal currents Each response current has a dedicated setting range The corresponding response current is set as soon as the button is latched in the setting range If the white setting arrow is resting betwe...

Страница 339: ...nt and the delay time 1 Switch off the molded case circuit breaker 2 Open the transparent protective cover over the setting buttons 3 Adjust the setting values for response current and delay time on the residual current device to the maximum value in each case 4 Switch on the molded case circuit breaker The LED labeled ACT on the residual current device now lights up the residual current device is...

Страница 340: ...ized access to the setting buttons for IΔn and Δt the transparent cover over the settings buttons can be optionally sealed Contact hazard protective cover over main current paths and auxiliary contacts including sealing option After the residual current device RCD820 has been mounted on the 3VA2 molded case circuit breaker a contact hazard protective cover is installed over the main current paths ...

Страница 341: ...eshold 1 This auxiliary switch operates as soon as the residual current exceeds 30 of the operating current setting value AL2 Signaling switch for pre alarm threshold 2 This auxiliary switch operates as soon as the residual current exceeds 60 of the operating current setting value TRIP IND TRIP INDICATOR A tripped signal can be output via this auxiliary switch for connection to a warning lamp for ...

Страница 342: ...ed to 13 5 A when all three signaling switches are used The relays for the pre alarm signals AL1 and AL2 drop out again as soon as the residual current reaches or exceeds the relevant pre alarm thresholds The relay for the tripped signal TRIP IND drops out again as soon as the residual current device is reset again by means of the molded case circuit breaker handle or the handle of the manual or m...

Страница 343: ... V 1 mA The residual current device trips if the pushbutton is actuated for at least 2 ms The terminals 1Y1 and 1Y2 are galvanically isolated from the mains supply functional extra low voltage FELV In special cases such as cable installation outdoors the amplitude of overvoltages e g overvoltages due to thunderstorms between the conductor and ground must be limited to 2 5 kV by suitable routing of...

Страница 344: ...tch is then connected to terminals 2Y1 and 2Y2 of the floating contact CB S It is necessary to use an unshielded or shielded twisted pair cable no more than 1 m in length with a maximum capacitance of 36 nF as well as a maximum resistance of 50 ohms total length out and back When the molded case circuit breaker is reset and then switched on again the contacts 1C and 2NC of the auxiliary switch are...

Страница 345: ... circuit breakers Manual 04 2015 A5E03603177010 02 345 Status indicators The table below illustrates the behavior of pre alarm and tripped signals on RCD820 devices in response to various user actions and residual currents 1 Infeed at top 2 Infeed at bottom ...

Страница 346: ...k For an overview of all approvals please refer to Appendix Page 505 For all queries relating to approvals please contact Technical Support Page 12 Technical specifications In A Specifies the highest permissible rated operational current of the molded case circuit breaker with which the residual current device may be combined Ue V Specifies the operating voltage range of the residual current devic...

Страница 347: ...l its rear panel is flush with the rear panel of the molded case circuit breaker 4 Screw the molded case circuit breaker to the residual current device Special connecting screws are provided on the line side of the residual current device for this purpose 5 Place a contact hazard protective cover over the circuit breaker RCD assembly 6 Reinstall the loadside connection components of the molded cas...

Страница 348: ...e over the interface X3 RCD The slide is fitted as a protective guard e g to protect the interface against soiling 3 Insert one end of the connecting cable into the interface on the residual current device The interfaces and the connecting cable are labeled to ensure that the cable ends are inserted in the right interfaces Note Plug in or remove the RCD ETU cable only when the residual current dev...

Страница 349: ...ng cable Use of the residual current device as a pure display unit The RCD820 residual current device can also operate as a pure display unit without a tripping function i e it detects and signals residual currents but does not trip the molded case circuit breaker or interrupt the circuit If the RCD820 device is to operate as a pure display unit the connecting cable between the residual current de...

Страница 350: ...r is linked to the communication system via a COM060 communication module If the residual current device is linked to the communication system the link can be used not only to interrogate the device for important status diagnostic maintenance and identification data but also to transmit commands The residual current device is normally supplied with power by the main current paths If the molded cas...

Страница 351: ...ow provides an overview of all the functions and data which are available in the residual current device environment Value can be read Value can be edited Commands 1 Reset by means of the molded case circuit breaker handle or the handle of the manual or motor operator 2 Reset in combination with motor operators 3 On request ...

Страница 352: ...Accessories 4 8 Residual current devices 3VA molded case circuit breakers 352 Manual 04 2015 A5E03603177010 02 4 8 2 4 Technical specifications ...

Страница 353: ...l 04 2015 A5E03603177010 02 353 1 85 V AC minimum voltage with phase to neutral conductor for operation of the test function 2 Reset by means of the circuit breaker handle 3 On request 4 Requirement The 3VA2 molded case circuit breaker is equipped with an ETU 5 series or 8 series ...

Страница 354: ...Accessories 4 8 Residual current devices 3VA molded case circuit breakers 354 Manual 04 2015 A5E03603177010 02 ...

Страница 355: ...ular residual current device is installed on a DIN rail 35 mm as close as possible to the molded case circuit breaker switch disconnector Operating principle The modular residual current device is connected to a summation current transformer through which all live conductors including neutral conductor where applicable must be routed The residual current is detected in the summation current transf...

Страница 356: ...tripping time Display Description of front panel view Display of ready to operate and tripped and alarm states The status of LED indicates whether the device is ready to operate or has tripped Green LED The device is in operation Red LED The set residual current has exceeded the response current the device has tripped LED is an alarm indication Yellow LED The set residual current has exceeded the ...

Страница 357: ...e circuit to be monitored the following summation current transformers can be used Alignment of conductors in the summation current transformer In order to prevent measurement errors or spurious tripping it is important to ensure that the conductors are properly aligned or arranged in the summation current transformer Note The summation current transformer used for the application must have an ins...

Страница 358: ...CD to the molded case circuit breaker switch disconnector are as short as possible please observe the specified minimum clearances Further information about the cables to be used is available on request Combinations of molded case circuit breaker MRCD and shunt trip undervoltage release Modular residual current devices molded case circuit breakers and shunt trips or undervoltage releases UVR can b...

Страница 359: ... 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 359 Example of wiring The circuit diagram below shows a typical MRCD circuit with an undervoltage release The MRCD has a separate power supply 230 V in the example application ...

Страница 360: ...ng of power distribution engineering and information technology has opened up a diverse range of new applications for molded case circuit breakers Potential applications The power distribution system can be integrated into the information system of the relevant application but it can also have its own independent information system Siemens considers the following three scenarios as potential appli...

Страница 361: ...stems 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 361 The TIP application scenario offers coordinated power distribution in all phases and on all levels as well as the benefit of an integrated information and communication structure ...

Страница 362: ...Accessories 4 9 Communication and link up to other systems 3VA molded case circuit breakers 362 Manual 04 2015 A5E03603177010 02 Totally Integrated Automation TIA and Totally Integrated Power TIP ...

Страница 363: ...Accessories 4 9 Communication and link up to other systems 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 363 Total Building Solution TBS and Totally Integrated Power TIP ...

Страница 364: ...s can be used in different ways to perform various tasks such as commissioning by installation personnel operations management by the maintenance department power management by accounting managers and process control by production managers 3VA2 molded case circuit breakers can adapt to operate with the communication systems implemented for individual fields of activity The communication capability...

Страница 365: ... provides fast access to specific information about the location and cause of power failures One example of tripping information Trip caused by 2317 A short circuit in phase L2 on August 27 2013 at 14 27 p m The specific details contained in this message are the basis for fast correction of the fault and create a significant potential for cost savings Statistics and cost effectiveness Recording of...

Страница 366: ...ual 04 2015 A5E03603177010 02 Automation technology SIMATIC based solutions for the process and manufacturing industry A key feature of the process and manufacturing industry is its very high power consumption It therefore makes sense to integrate a power data management system into existing systems ...

Страница 367: ... and the 7KM PAC3200 and 7KM PAC4200 measuring devices PROFIenergy is a Common Application Profile from Profibus International Thanks to PROFIenergy it is possible to create a power data management system with standardized device interfaces Building automation Intelligent buildings with Total Building Solutions Unlike structures of the past modern buildings need to meet many different criteria Bui...

Страница 368: ...s such as current voltage or power factor Not only is this system able to display values but also to monitor and archive them for later analysis In addition the load monitoring function is capable of monitoring a specified setpoint and making recommendations as to which loads should be connected and disconnected Identifying savings potential The power monitoring software has been tested by the TÜV...

Страница 369: ...ded case circuit breakers Manual 04 2015 A5E03603177010 02 369 4 9 2 3VA concept 3VA line 3VA molded case circuit breakers employ a flexible communication concept which can be tailored to specific customer requirements This concept is described in general terms below ...

Страница 370: ...00 breaker data server 24 V supply 3VA line connection Terminating resistor Integrated Ethernet interface with Ethernet Modbus TCP 7KM PAC PROFIBUS DP expansion module 7KM PAC Switched Ethernet PROFINET expansion module DSP800 display powermanager and powerconfig can also be connected Connecting cable T Connector COM060 communication module integrated in 3VA2 molded case circuit breaker Up to a to...

Страница 371: ...xpansion modules are installed the 3VA2 molded case circuit breaker can be modularly integrated into the PROFINET and PROFIBUS landscape of TIA Totally Integrated Automation i e of the SIMATIC system The communication equipment for the molded case circuit breakers can be installed and connected up extremely easily reliably and efficiently thanks to the connector system used The 24 V DC supply to t...

Страница 372: ... COM100 breaker data server and DSP800 display The DSP800 display is designed for mounting in the cubicle door and can be optionally connected to the Ethernet Modbus TCP interface integrated in the COM800 COM100 breaker data server The DSP800 is the display unit for the breaker data server and therefore displays the data of up to eight 3VA2 molded case circuit breakers connected to the server The ...

Страница 373: ...he COM100 is identical in design to the COM800 breaker data server i e it is connected directly to the COM060 communication module in the 3VA2 molded case circuit breaker by means of a cable By contrast with the flexibility offered by the COM800 breaker data server only one single 3VA2 molded case circuit breaker can be connected to each COM100 unit Like the COM800 breaker data server the COM100 f...

Страница 374: ...the modular communication structure is illustrated in the diagram below COM100 24 V supply 3VA line connection Terminating resistor Integrated Ethernet interface with Ethernet Modbus TCP 7KM PAC PROFIBUS DP expansion module 7KM PAC Switched Ethernet PROFINET expansion module DSP800 display Connecting cable T Connector COM060 communication module integrated in 3VA2 molded case circuit breaker ...

Страница 375: ...VA components Testing of 3VA Commissioning of 3VA Statistical analysis of 3VA Readout of measured variables such as energy current voltage and power from 3VA molded case circuit breakers Readout of minimum and maximum values from 3VA molded case circuit breakers Diagnosis of 3VA The PC on which powerconfig is installed is connected to the 3VA molded case circuit breaker by means of the COM800 COM1...

Страница 376: ...U the EFB300 external function box and the communication structure can be commissioned easily by means of the powerconfig software On completion of the commissioning process the ETU settings can be stored as a project on the PC and printed out powerconfig can also be used to perform ETU trip tests A test report is generated automatically and stored in the project every time a test is carried out p...

Страница 377: ...er systems 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 377 The possible means of connection of the COM800 COM100 breaker data server are described in detail in the 3VA Communication system manual see Reference documents Page 12 ...

Страница 378: ...molded case circuit breakers 378 Manual 04 2015 A5E03603177010 02 With 3VA2 molded case circuit breakers and ETUs 3 series the powerconfig software application is linked to the ETU interface via the USB interface on the PC and the interface on the TD500 test device ...

Страница 379: ...via a cable connection This information can be used to output active trip alarms and tripping reasons configurable using powerconfig which are attributable to a thermal overload event as remote feedback via four digital outputs Zone selective interlocking functionality ZSI see chapter Zone Selective Interlocking Page 81 can also be implemented via the EFB300 The EFB300 also supplies the ETU with p...

Страница 380: ...em The following signals dependent on the ETU can be assigned All reasons for ETU tripping L S I N and G plus Phase loss Underload Blocking Overload alarms AL 1 and AL 2 Pre trip alarm for overload protection An alarm is output in advance of a trip event allowing time for a load to be shut down before a maximum output or current limit is exceeded Load shedding load pick up By means of the load she...

Страница 381: ...Accessories 4 10 EFB300 external function box 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 381 Overview of functions available with EFB300 external function box ...

Страница 382: ...tworks with multiple molded case circuit breakers connected in series Advantage of ZSI Regardless of the number of series connected molded case circuit breakers all short circuits in the network can be cleared within a maximum time period of 50 ms Short circuit clearance times should be minimized particularly in the case of system short circuits of very large magnitude Note Downward compatibility ...

Страница 383: ... a dedicated EFB300 external function box to each 3VA2 molded case circuit breaker The EFB300 allows molded case circuit breakers to communicate with one another a capability which is a basic requirement for the ZSI function To permit utilization of the ZSI function EFB300 external function boxes must be interconnected as illustrated below See also Zone selective interlocking ZSI Page 81 ...

Страница 384: ... Operating mode The EFB300 external function box is in operating mode during operation Operation of the EFB300 is indicated by steady illumination of the LED labeled ACT If a tripped signal is present at an output output is activated the user can acknowledge the signal or reset the output This can be done by various methods By application of a signal to the digital input of the EFB300 By brief act...

Страница 385: ...nal function box 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 385 LED states in operating mode Steady illumination Flashing Off Simultaneous flashing of all LEDs indicates that the EFB300 is defective Flashing ...

Страница 386: ...r the digital outputs and the ZSI bus are functioning properly and wired correctly The LED labeled ACT flashes to indicate that test mode is active The powerconfig software can also be used to test outputs Activating test mode and performing tests 1 In order to activate test mode press the SET button for at least 2 seconds until all the LEDs for the outputs light up briefly Test mode is activated ...

Страница 387: ...177010 02 387 2 Press the SET button briefly LED ZSI_OUT flashes the ZSI output is selected 3 In order to activate the selected output press the SET button for longer than 2 seconds The LED of the selected output changes from flashing to steady illumination to indicate activation of the selected output ...

Страница 388: ...n again for longer than 2 seconds The LED of the activated output will change from steady illumination to flashing The output is deactivated but still selected 5 In order to select the next output press the SET button briefly The LED of the next output starts to flash the output is selected 6 Repeat steps 3 to 5 in order to check the wiring of all digital outputs in succession ...

Страница 389: ... test mode If the SET button is not pressed for a period of three minutes after selection of an output test mode is terminated automatically and the EFB300 reverts to operating mode Alternative method After working through the entire menu structure only the LED labeled ACT flashes press the SET button for longer than 2 seconds ...

Страница 390: ...Accessories 4 10 EFB300 external function box 3VA molded case circuit breakers 390 Manual 04 2015 A5E03603177010 02 LED states in test mode Steady illumination Flashing Off ...

Страница 391: ...Accessories 4 10 EFB300 external function box 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 391 4 10 6 Technical specifications ...

Страница 392: ...Accessories 4 10 EFB300 external function box 3VA molded case circuit breakers 392 Manual 04 2015 A5E03603177010 02 ...

Страница 393: ...st devices are required in order to perform local tests on 3VA2 molded case circuit breakers equipped with electronic trip units ETUs Two versions of the test devices are available TD300 activation and trip box TD500 test device Functional scope of test devices 1 One energy transformer one Rogowski coil 2 Via powerconfig ...

Страница 394: ...eaker is switched off and de energized To test and service the electronic trip unit ETU The power supply is provided by two AA batteries included in the scope of supply The TD300 activation and trip box is designed for ease of handling with dimensions of 76 x 107 x 25 mm W x H x D Description of the TD300 activation and trip box LED ACT for indicating the battery status Slide switch ON OFF TRIP pu...

Страница 395: ...er supply 2 Insert the connecting cable in the test socket of the ETU Switch the TD300 on and off 1 Check whether the molded case circuit breaker is disconnected from the power supply If it is not disconnect it 2 Push the slide switch to ON The LED labeled ACT on the TD300 lights up and the ETU display is activated The TD300 is ready If the ACT LED does not light up Push the slide switch to OFF De...

Страница 396: ...tion 3 Press the pushbutton labeled TRIP on the TD300 The molded case circuit breaker trips The molded case circuit breaker is functioning correctly The molded case circuit breaker does not trip Switch off the TD300 Switch off the molded case circuit breaker OFF position Detach the connecting cable from the molded case circuit breaker Connect the TD300 correctly to the molded case circuit breaker ...

Страница 397: ...Accessories 4 11 Test devices 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 397 4 11 1 2 Technical specifications of TD300 ...

Страница 398: ...real trip event The molded case circuit breaker trips when the set delay times expire and signals all alarms and tripped signals from connected components Benefits of the TD500 test device A TD500 test device via powerconfig can be used to successively parameterize all 3VA2 molded case circuit breakers directly in situ The device can store up to 100 test results Using the TD500 test device and the...

Страница 399: ...ices 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 399 Description of the TD500 Plug in connector for insertion in the test socket on the ETU TD500 to ETU connecting cable TD500 test device Power supply unit ...

Страница 400: ...button for instantaneous short circuit trip test I LED RESULT Pushbutton for short time delayed short circuit test S Pushbutton for neutral trip test N Pushbutton for overload trip test L Pushbutton for ground fault trip test G Pushbutton for ETU Power ON OFF Pushbutton for meter test current measure ment display LED ACT status PC connection LED COM communication status Mains cable connection ...

Страница 401: ...A5E03603177010 02 401 LED display Interfaces of the TD500 test device The diagram below shows the physical interfaces of the TD500 test device Top of unit Connection to 3VA2 molded case circuit breaker Bottom of unit on right 24 V DC supply Bottom of unit on left Connection to PC ...

Страница 402: ...e following data are stored in the TD500 Article number ETU parameter settings Causes of ETU trips Note Readout of data and clearing of the internal memory of the TD500 Using a PC and the powerconfig software you can read these data out of the TD500 and clear its internal memory Test functions of the TD500 The relevant pushbutton must be pressed in order to start a specific test The molded case ci...

Страница 403: ...r 1 Disconnect the molded case circuit breaker from the power supply 2 Insert the connecting cable in the socket on top of the TD500 test device 3 Insert the connecting cable in the test socket of the ETU 4 Insert the cable of the power supply unit in the socket on the bottom of the TD500 test device 5 Connect the power supply unit to a socket The TD500 test device is now switched on and ready 6 P...

Страница 404: ... breaker 3 To test the tripping function press one of the pushbuttons L S I N or G on the TD500 test device When a pushbutton is pressed its LED flashes while the test is in progress The ETU trips when the set trip times expire and the molded case circuit breaker switches from ON to TRIP On completion of the test the LED of the selected pushbutton changes from flashing to steady illumination 4 Wai...

Страница 405: ... The LED in the pushbutton L starts to flash 4 Wait until the LED in the pushbutton L changes from flashing to steady illumination The test is completed 5 Evaluate the test result by the status of the LED labeled RESULT LED RESULT is illuminated steadily in green The test was successful LED RESULT flashes red The test was unsuccessful and must be repeated If the test fails again contact Technical ...

Страница 406: ...est 1 Connect the TD500 test device to the 3VA2 molded case circuit breaker 2 Press the pushbutton labeled METER The LED in the METER pushbutton begins to flash The test takes approximately 30 seconds 3 Wait until the LED in the pushbutton METER changes from flashing to steady illumination The test is completed 4 Evaluate the test result by the status of the LED labeled RESULT LED RESULT is illumi...

Страница 407: ...al power supplies to the electronics 2 Connect the TD500 test device to the 3VA2 molded case circuit breaker 3 Switch on the 3VA2 molded case circuit breaker 4 Press the pushbutton labeled TRANS The LED in the TRANS pushbutton begins to flash The test takes several seconds 5 Wait until the LED in the pushbutton TRANS changes from flashing to steady illumination The test is completed 6 Evaluate the...

Страница 408: ...ircuit breaker is generated and stored in the powerconfig project The test log can be printed out Connections between ETU TD500 PC Plug in connector for insertion in the test socket on the ETU Power supply unit TD500 to ETU connecting cable USB connecting cable TD500 test device PC with powerconfig installed 4 11 2 3 Parameterizing using the powerconfig software In addition to test functions the p...

Страница 409: ...Accessories 4 11 Test devices 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 409 4 11 2 4 Technical specifications ...

Страница 410: ... circuit breakers 410 Manual 04 2015 A5E03603177010 02 4 12 External current transformer for N conductor The external current transformer for N conductor is a current transformer for 3 pole 3VA2 molded case circuit breakers with ETU 5 series and 8 series Technical specifications ...

Страница 411: ...lastic plates in order to prevent direct contact with live components The cubicle door itself is often designed as a protective cover Cutouts must be made in these covers in order to allow access to control elements which are designed to prevent direct contact with cables and which are large enough in size that the cover can be closed easily All these requirements necessitate gap dimensions of a f...

Страница 412: ...from the front and fasten by means of small spring steel sheets at the rear of the cover plate The fastening system is designed such that the the escutcheon can move in the cutout In other words the escutcheon is float mounted Tolerance compensation by around 3 mm is thus afforded in the horizontal direction and by as much as 6 mm in the vertical direction This tolerance compensation is necessary ...

Страница 413: ...13 Molded case circuit breaker Motor operator Escutcheon Cubicle door closed Cubicle door open Tolerance compensator Note To ensure that the control cabinet door can still be opened a front mounted accessory component must not project over the escutcheon by more than 5 mm when the door is closed ...

Страница 414: ... labeling plate 3VA9087 0SX10 is available for the escutcheon It can be latched in position in the center of any of the four sides of the escutcheon Paper or plastic labels displaying plant specific information are attached by adhesive to the labeling plate The scope of supply includes 10 labeling plates and 10 aluminum colored labels ...

Страница 415: ...ls are not designed to support heavy weights and on the other only molded case circuit breakers with thermal magnetic trip units and rated operational currents up to maximum 160 A are normally installed in distribution boards The DIN rail adapters are snapped onto the rear panel of the molded case circuit breaker or fastened by screws With an adapter installed the circuit breaker is simple to atta...

Страница 416: ...ts supplied with the circuit breakers are not required 3VA1 100 and 3VA1 160 3 pole and 4 pole molded case circuit breakers with side mounted residual current device The 3VA9187 0SH20 DIN rail adapter has been specially developed for use with molded case circuit breakers combined with side mounted residual current device This DIN rail adapter is also fitted with threaded nuts so that the molded ca...

Страница 417: ...e front panel 45 mm high is the only part of the device which protrudes through the cover With this arrangement it is not possible to use front mounted accessories When molded case circuit breakers including DIN rail adapter are installed on rails in an open system cubicle without a cover it is possible to use front mounted accessories such as motor operator rotary operator with shaft stub front m...

Страница 418: ...Accessories 4 14 DIN rail adapter 3VA molded case circuit breakers 418 Manual 04 2015 A5E03603177010 02 ...

Страница 419: ... to energize ground and tag equipment systems and circuits in accordance with established safety procedures Maintenance category 5 2 Regular maintenance Recommended maintenance inspection intervals Following initial commissioning the equipment system must be inspected at least once per year In addition an inspection should be carried out after 1000 trips at rated operational current If the molded ...

Страница 420: ...nce 3VA molded case circuit breakers 420 Manual 04 2015 A5E03603177010 02 Inspection procedure recommended for 3VA molded case circuit breakers switch disconnectors Optional inspection procedure for the ETU of the 3VA2 molded case circuit breaker ...

Страница 421: ... the cause of tripping can be determined for example with the assistance of the short circuit alarm switches SAS With 3VA2 molded case circuit breakers the cause of tripping can be output via the EFB300 external function box With electronic trip units ETU 5 series and 8 series the cause of tripping can be indicated on the LCD display and optionally transferred via communication modules An inspecti...

Страница 422: ...Service and maintenance 5 4 Fault diagnostics 3VA molded case circuit breakers 422 Manual 04 2015 A5E03603177010 02 5 4 Fault diagnostics See also Technical Support Page 12 ...

Страница 423: ...nual 04 2015 A5E03603177010 02 423 Technical specifications 6 6 1 Circuit diagrams 6 1 1 3VA1 molded case circuit breakers 6 1 1 1 Basic units Switch disconnectors Fixed mounting 3 pole and 4 pole Plug in draw out units 3 pole and 4 pole ...

Страница 424: ...case circuit breakers 424 Manual 04 2015 A5E03603177010 02 3VA1 molded case circuit breakers with thermal magnetic trip unit Fixed mounting and plug in draw out units 3 pole and 4 pole Fixed mounting 3 pole and 4 pole Plug in draw out units 3 pole and 4 pole ...

Страница 425: ... 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 425 Fixed mounting and plug in draw out units 4 pole unprotected N conductor Fixed mounting 4 pole unprotected N conductor Plug in and draw out units 4 pole unprotected N conductor ...

Страница 426: ...tion signaling contacts Changeover contacts for auxiliary switches AUX trip alarm switches TAS and electrical alarm switches EAS position signaling switches for plug in and draw out units Leading changeover contacts for leading changeover switch LCS Auxiliary releases Undervoltage release UVR Undervoltage release with leading NO contacts UVR LNO Universal release UNI Shunt trip ...

Страница 427: ...erators Front mounted motor operator Motor operator actuation controlled via control cable S0 OFF to be provided by customer S1 ON to be provided by customer F1 Fuse in the control circuit to be provided by customer L1 Indicator light AUTO mode to be provided by customer L2 Indicator light MAN mode to be provided by customer ...

Страница 428: ...ght MAN mode to be provided by customer This circuit is deployed in order to prevent no load operation of the molded case circuit breaker The contact of auxiliary contactor K1 prevents no load operation when the undervoltage release U is de energized No load operations subject the molded case circuit breaker to high stresses If the undervoltage release is de energized auxiliary contactor K1 has no...

Страница 429: ...e and 4 pole with two optionally integrated position signaling switches for signaling Plug in unit MCCB correctly bolted to plug in socket Draw out units 3 pole and 4 pole with an optional switch for signaling the condition Draw out unit locked open and six optionally integrated position signaling switches for signaling Posi tion of breaker in the draw out unit ...

Страница 430: ...echnical specifications 6 1 Circuit diagrams 3VA molded case circuit breakers 430 Manual 04 2015 A5E03603177010 02 RCD basic Side mounted RCD basic 3 pole and 4 pole Loadside RCD basic 3 pole and 4 pole ...

Страница 431: ...Technical specifications 6 1 Circuit diagrams 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 431 6 1 1 3 Example 3VA1 molded case circuit breaker with built on built in accessories ...

Страница 432: ...e circuit breakers 432 Manual 04 2015 A5E03603177010 02 6 1 2 3VA2 molded case circuit breakers 6 1 2 1 Basic units Fixed mounting and plug in draw out units 3 pole and 4 pole Fixed mounting 3 pole and 4 pole Plug in draw out units 3 pole and 4 pole Voltage tap ...

Страница 433: ... Optional external current transformer for N conductor gray line Voltage tap 6 1 2 2 Accessories Auxiliary switches alarm switches and position signaling contacts Changeover contacts for auxiliary switches AUX trip alarm switches TAS and electrical alarm switches EAS position signaling switches for plug in and draw out units Leading changeover contacts for leading changeover switch LCS ...

Страница 434: ... case circuit breakers 434 Manual 04 2015 A5E03603177010 02 Auxiliary releases Undervoltage release UVR Undervoltage release with leading NO contacts UVR LNO Universal release UNI Shunt trip Other internal accessories COM060 communication module 24 V module ...

Страница 435: ...erators Front mounted motor operator Motor operator actuation controlled via control cable S0 OFF to be provided by customer S1 ON to be provided by customer F1 Fuse in the control circuit to be provided by customer L1 Indicator light AUTO mode to be provided by customer L2 Indicator light MAN mode to be provided by customer ...

Страница 436: ...ght MAN mode to be provided by customer This circuit is deployed in order to prevent no load operation of the molded case circuit breaker The contact of auxiliary contactor K1 prevents no load operation when the undervoltage release U is de energized No load operations subject the molded case circuit breaker to high stresses If the undervoltage release is de energized auxiliary contactor K1 has no...

Страница 437: ...ts 3 pole and 4 pole with two optionally integrated position signaling switches for signaling Plug in unit MCCB correctly bolted to plug in socket Draw out units 3 pole and 4 pole with an optional switch for signaling the condition Draw out unit locked open and six optionally integrated position signaling switches for signaling Position of breaker in the draw out unit Voltage tap ...

Страница 438: ...A5E03603177010 02 Draw out units with communication interface Voltage tap Draw out units 3 pole and 4 pole with an optional switch for signaling the condition Draw out unit locked open and three optionally integrated position signaling switches for signaling Position of breaker in the draw out unit ...

Страница 439: ...Technical specifications 6 1 Circuit diagrams 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 439 RCD advanced Loadside RCD 3 pole and 4 pole Voltage tap ...

Страница 440: ...02 Other external accessories T Connector A connection can also be optionally equipped with a bus terminating resistor The T Connector is included in the scope of supply of the COM060 communication module COM800 COM100 breaker data server A connection can also be optionally equipped with a bus terminating resistor ...

Страница 441: ... COM100 breaker data server with expansion modules COM800 COM100 breaker data server with 7KM PAC PROFIBUS DP expansion module COM800 COM100 breaker data server with 7KM PAC Switched Ethernet PROFINET expansion module A connection can also be optionally equipped with a bus terminating resistor EFB300 external function box ...

Страница 442: ... Manual 04 2015 A5E03603177010 02 External current transformer for N conductor and illumination kit 24 V DC for manual handle Connection for external current transformer for N conductor Illumination kit 24 V DC for manual handle Voltage tap Time delay device for undervoltage releases ...

Страница 443: ...diagrams 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 443 6 1 2 3 Example 3VA2 molded case circuit breaker with built on built in accessories A connection can also be optionally equipped with a bus terminating resistor ...

Страница 444: ...e EMERGENCY STOP pushbutton are therefore also de energized whenever the molded case circuit breaker is switched off EMERGENCY STOP circuit with 3VA molded case circuit breaker and undervoltage release with leading NO contacts UVR LNO Q 3VA molded case circuit breaker U Undervoltage release with leading NO contacts UVR LNO S0 EMERGENCY STOP to be provided by customer Note The undervoltage release ...

Страница 445: ...ge release in molded case circuit breaker 1 AUX 1 Auxiliary switch in molded case circuit breaker 1 Q 2 Molded case circuit breaker 2 UVR 2 Undervoltage release in molded case circuit breaker 2 AUX 2 Auxiliary switch in molded case circuit breaker 2 Note The undervoltage release UVR must not be connected to phases L1 and L3 for 690 V AC applications In this case it is connected to phase L1 and the...

Страница 446: ... 2015 A5E03603177010 02 6 2 Dimensional drawings Note Hole drilling templates can be ordered via the Internet from the Siemens ComMaterials Platform https siemens merchandising ippag com nbc_requirelogin_sml php language en 6 2 1 Dimensions of basic units 6 2 1 1 3VA10 and 3VA11 3VA11 160 A 1 pole ...

Страница 447: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 447 3VA11 160 A 2 pole 3VA10 100 A 3VA11 160 A 3 pole ...

Страница 448: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 448 Manual 04 2015 A5E03603177010 02 3VA10 100 A 3VA11 160 A 4 pole ...

Страница 449: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 449 6 2 1 2 3VA12 3VA12 250 A 3 pole 3VA12 250 A 4 pole ...

Страница 450: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 450 Manual 04 2015 A5E03603177010 02 6 2 1 3 3VA20 3VA20 100 A 3VA21 160 A 3VA22 250 A 3 pole ...

Страница 451: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 451 3VA20 100 A 3VA21 160 A 3VA22 250 A 4 pole ...

Страница 452: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 452 Manual 04 2015 A5E03603177010 02 6 2 1 4 3VA23 3VA23 400 A 3VA24 630 A 3 pole 3VA23 400 A 3VA24 630 A 4 pole ...

Страница 453: ...ings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 453 6 2 2 Dimensions of accessories 6 2 2 1 Connection technology Rear busbar and cable lug connections for plug in and draw out molded case circuit breakers Rear terminal flat ...

Страница 454: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 454 Manual 04 2015 A5E03603177010 02 Rear connecting stud ...

Страница 455: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 455 Phase barrier ...

Страница 456: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 456 Manual 04 2015 A5E03603177010 02 Terminal cover Extended terminal cover ...

Страница 457: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 457 Broadened terminal cover ...

Страница 458: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 458 Manual 04 2015 A5E03603177010 02 Insulating plate Insulating plate ...

Страница 459: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 459 Broadened insulating plate ...

Страница 460: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 460 Manual 04 2015 A5E03603177010 02 6 2 2 2 Plug in and draw out units Plug in socket ...

Страница 461: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 461 Draw out unit ...

Страница 462: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 462 Manual 04 2015 A5E03603177010 02 Door feedthrough ...

Страница 463: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 463 6 2 2 3 Manual operators Front mounted rotary operator ...

Страница 464: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 464 Manual 04 2015 A5E03603177010 02 Door mounted rotary operator Door mounted rotary operator ...

Страница 465: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 465 Door mounted rotary operator with variable depth adapter 3VA9487 0GB10 ...

Страница 466: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 466 Manual 04 2015 A5E03603177010 02 Supplementary handle for door mounted rotary operator 3VA9 87 0GC ...

Страница 467: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 467 3VA9 87 0GA80 ...

Страница 468: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 468 Manual 04 2015 A5E03603177010 02 Side wall mounted rotary operator Side wall mounted rotary operator ...

Страница 469: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 469 Side wall mounted rotary operator with mounting plate ...

Страница 470: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 470 Manual 04 2015 A5E03603177010 02 Rotary operator with shaft stub ...

Страница 471: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 471 6 2 2 4 Motor operators MO320 motor operator ...

Страница 472: ...ecifications 6 2 Dimensional drawings 3VA molded case circuit breakers 472 Manual 04 2015 A5E03603177010 02 6 2 2 5 Locking and interlocking Padlock device for the handle Locking or interlocking with cylinder lock ...

Страница 473: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 473 Sliding bar with Bowden cable Sliding bar ...

Страница 474: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 474 Manual 04 2015 A5E03603177010 02 Rear interlock Rear interlock 3VA9088 0VM10 3VA9088 0VM30 MCCB ...

Страница 475: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 475 3VA9 0KP00 3VA9 0KD00 ...

Страница 476: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 476 Manual 04 2015 A5E03603177010 02 Mounting plates and DIN rail ...

Страница 477: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 477 Rear interlock for plug in and draw out units 3VA9088 0VM30 3VA9 0KP00 3VA9 0KD00 ...

Страница 478: ...nal drawings 3VA molded case circuit breakers 478 Manual 04 2015 A5E03603177010 02 6 2 2 6 Residual current devices Side mounted residual current devices Basic RCD310 and Basic RCD510 With 3 pole 3VA1 molded case circuit breaker size 160 A ...

Страница 479: ... 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 479 With 4 pole 3VA1 molded case circuit breaker size 160 A With 3 pole 3VA1 molded case circuit breaker size 250 A Basic RCD510 only ...

Страница 480: ...A molded case circuit breakers 480 Manual 04 2015 A5E03603177010 02 With 4 pole 3VA1 molded case circuit breaker size 250 A Basic RCD510 only Loadside residual current devices Basic RCD320 and Basic RCD520 With 3VA1 molded case circuit breaker size 160 A ...

Страница 481: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 481 With 3VA1 molded case circuit breaker size 250 A Basic RCD520 only ...

Страница 482: ...cifications 6 2 Dimensional drawings 3VA molded case circuit breakers 482 Manual 04 2015 A5E03603177010 02 Loadside residual current device Advanced RCD820 With 3VA2 molded case circuit breaker sizes 100 A to 250 A ...

Страница 483: ...imensional drawings 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 483 With 3VA2 molded case circuit breaker sizes 400 A to 630 A 6 2 2 7 Communication and system integration COM800 and COM100 breaker data server ...

Страница 484: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 484 Manual 04 2015 A5E03603177010 02 DSP800 display 6 2 2 8 EFB300 external function box ...

Страница 485: ...eakers Manual 04 2015 A5E03603177010 02 485 6 2 2 9 Test devices TD300 activation and trip box Refer to chapter Technical specifications of TD300 Page 397 TD500 test device Refer to chapter Technical specifications Page 409 6 2 2 10 External current transformer for N conductor ...

Страница 486: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers 486 Manual 04 2015 A5E03603177010 02 6 2 2 11 Escutcheon ...

Страница 487: ...molded case circuit breakers Manual 04 2015 A5E03603177010 02 487 6 3 Power losses 6 3 1 Power losses of 3VA1 molded case circuit breakers Note The specified power loss applies to 3 pole and 4 pole devices in the case of 3 phase symmetrical loading ...

Страница 488: ...ses 3VA molded case circuit breakers 488 Manual 04 2015 A5E03603177010 02 6 3 2 Power losses of 3VA2 molded case circuit breakers Note The specified power loss applies to 3 pole and 4 pole devices in the case of 3 phase symmetrical loading ...

Страница 489: ...enerated inside the unit To prevent overloading of 3VA1 molded case circuit breakers under difficult thermal conditions the maximum rated continuous operational current must be limited as a function of the ambient temperature No derating up to the rated operational current In of the molded case circuit breaker Note These values do not apply to all mounting conditions for molded case circuit breake...

Страница 490: ... from the extensive range available for 3VA1 molded case circuit breakers has an influence on the thermal response thresholds of the switching devices except for two accessories that require additional correction factors These are No derating up to the rated operational current In of the molded case circuit breaker No derating up to the rated operational current In of the molded case circuit break...

Страница 491: ...perature of 50 C The thermal response threshold of the trip unit changes when the circuit breaker is operated in a higher or lower ambient temperature To obtain the characteristic tripping times at a specific ambient temperature it is necessary to apply correction factors when setting the thermal trip units Correction factor TK is applied to compensate for the ambient temperature The first step in...

Страница 492: ...rated operational current In of the molded case circuit breaker Using the two calculated values it is possible to determine the temperature compensation TK and finally the setting value for the trip unit Ir TU TK TU Temperature compensation for molded case circuit breaker with service tempera ture TU K Correction factor Tu Service temperature of molded case circuit breaker Trip unit setting value ...

Страница 493: ...m current of I 90 A Ambient temperature 60 C Setting factor EF 50 C 90 100 0 9 Correction factor K 0 58 see chart above Temperature compensation TK 60 C 0 58 60 C 50 C 100 1 1 058 Setting value Ir 60 C 100 A 0 9 1 058 95 A Ambient temperature 40 C Setting factor EF 50 C 90 100 0 9 Correction factor K 0 58 Temperature compensation TK 40 C 0 58 40 C 50 C 100 1 0 942 Setting value Ir 40 C 100 A 0 9 0...

Страница 494: ...time for an overcurrent IO 360 A will now be calculated To compensate for the ambient temperature of 60 C rather than 50 C the thermal trip unit has been set Ir 60 C 95 A for a system current I 90 A The first step is to calculate the ratio between the overcurrent and the system current Io I 360 A 90 A 4 Using this value it is now possible to read the tripping time from the characteristics chart Tr...

Страница 495: ...evices Example Starting point The current loading of a 3VA1 molded case circuit breaker is calculated to be 90 A and the ambient temperature 65 C for a given application The plug in version of the molded case circuit breaker will be used The appropriate size of molded case circuit breaker is determined first on the basis of the correction factor for 3VA1 plug in technology see table above Design o...

Страница 496: ...reaker 6 4 4 Additional correction factors with frequencies other than 50 60 Hz for 3VA1 molded case circuit breakers The temperature rise in the bimetal is greater at frequencies above 50 60 Hz This is due to eddy current losses and the reduction in the available conductor cross section as a result of the skin effect The rated operational current must therefore be reduced from the value used in 5...

Страница 497: ...point A 3VA1 molded case circuit breaker 100 A with a TM240 trip unit is used for a 400 Hz application The molded case circuit breaker is required to trip instantaneously in response to an overcurrent of 900 A The maximum permissible rated continuous operational current is calculated first 100 A 0 9 90 A The setting value for instantaneous short circuit protection Ii is then determined on the basi...

Страница 498: ...magnetic trip unit Where ambient temperatures differ from the calibration temperature temperature compensation as described in chapter Derating of 3VA1 molded case circuit breakers Page 489 must be performed Example Starting point A 3VA1 molded case circuit breaker 160 A with a TM240 trip unit is used in a DC system The molded case circuit breaker is required to trip instantaneously in response to...

Страница 499: ...tor is however influenced by the ambient temperature and the current dependent power loss generated inside the unit Nonetheless 3VA1 switch disconnectors up to 125 A do not require derating up to 70 C To prevent overloading of switch disconnectors up to 125 A under difficult thermal conditions the maximum rated continuous operational current must be limited as a function of the ambient temperature...

Страница 500: ...on with accessories The table below shows the maximum rated continuous operational current for the plug in version of switch disconnectors in sizes 160 A and 250 A and for switch disconnectors combined with residual current devices No derating up to the rated operational current In of the molded case circuit breaker None of the other available accessories require derating of the 3VA1 switch discon...

Страница 501: ... means that it is not necessary to apply correction factors Limitation of the rated operational current The temperature inside the molded case circuit breaker is nonetheless influenced by the ambient temperature and the current dependent power loss generated inside the unit To prevent overloading of molded case circuit breakers under difficult thermal conditions the maximum rated continuous operat...

Страница 502: ... Derating and temperature compensation 3VA molded case circuit breakers 502 Manual 04 2015 A5E03603177010 02 COM060 COM060 communication module No derating up to the rated operational current In of the molded case circuit breaker ...

Страница 503: ...When terminals with auxiliary conductor connection are used the total current from the main circuit and auxiliary conductor must not exceed the maximum rated operational current of the molded case circuit breaker Example 1 Starting point A plug in version of a 3VA2 molded case circuit breaker 160 A with an ETU350 LSI trip unit is to be operated at 70 C Ir max 70 C 160 A No derating is required Exa...

Страница 504: ...Technical specifications 6 4 Derating and temperature compensation 3VA molded case circuit breakers 504 Manual 04 2015 A5E03603177010 02 ...

Страница 505: ... heat cyclic 12 12 hours IEC 60068 2 52 Environmental testing Part 2 Tests Test Kb Salt mist cyclic sodium chloride solution IEC 60068 2 6 Fc Environmental testing Part 2 6 Tests Test Fc Vibration sinusoidal IEC 60228 Class 1 Solid conductors IEC 60228 Class 2 Stranded conductors IEC 60228 Class 5 Flexible conductors IEC 60228 Class 6 Very flexible conductors more flexibility than Class 5 IEC 6036...

Страница 506: ...0 4 6 Immunity to conducted disturbances induced by radio frequency fields IEC 61557 12 Electrical safety in low voltage distribution systems up to 1000 V a c and 1500 V d c Equipment for testing measuring or monitoring of protective measures Part 12 Performance measuring and monitoring devices PMD UL489 Annex SE Firmware analysis for safety relevant applications in electronic trip units RoHS Dire...

Страница 507: ...by improper handling You must discharge your body electrostatically immediately before touching an electronic component To do this touch a conductive grounded object e g a bare metal part of a switch cabinet or the water pipe Always hold the component by the plastic enclosure Electronic modules should not be brought into contact with electrically insulating materials such as plastic film plastic p...

Страница 508: ...2 The diagrams below illustrate the required ESD protective measures for electrostatic sensitive devices 1 ESD seat 2 ESD standing position 3 ESD seat and ESD standing position Protective measures a Conductive floor b ESD table c ESD footwear d ESD smock e ESD bracelet f Cubicle ground connection Figure B 1 ESD work center ...

Страница 509: ...ATSE Automatic Transfer Switching Equipment AUX Auxiliary switch C Common CB S Circuit Breaker Switch standard auxiliary switch NO contact CD Compact Disk COM DO COM Draw out Kit DC Direct voltage DIN Deutsches Institut für Normierung e V German Institute for Standardization DISCON DISCONNECT DO Draw out EFB External Function Box ESD Electrostatic sensitive devices EMC Electromagnetic compatibilit...

Страница 510: ...r protection N LSI Overload protection L short time delayed short circuit protection S and instantaneous short circuit protection I LSIN Overload protection L short time delayed short circuit protection S instan taneous short circuit protection I and neutral conductor protection N LSING Overload protection L short time delayed short circuit protection S instan taneous short circuit protection I an...

Страница 511: ...ircuit breaker or MRCD suitable for systems with grounded phase TCP Transmission Control Protocol TD Test Device TM Thermal Magnetic TMTU Thermal Magnetic Trip Unit TRIP IND TRIP INDICATOR trip alarm switch TRUE RMS TRUE root mean square TU Trip Unit UAR Universal release UL Underwriters Laboratories Inc UR Undervoltage release USB Universal Serial Bus UPS Uninterruptible power supply UVR Undervol...

Страница 512: ...ound fault current setting value Ii Instantaneous tripping current instantaneous short circuit protection instantaneous magnetic protection rated tripping current of instantaneous trip Ik Short circuit current IKD Uninterrupted short circuit current IK MAX Maximum short circuit current IKmaxline Uninterrupted short circuit current of system In Rated operational current InG Rated operational curren...

Страница 513: ...pping current of instantaneous trip Tp Trip time delay time time lag class tr Trip time associated with current setting value of adjustable overload protection tsd Trip time associated with short time delayed tripping current delay time of S pro tection tS Fuse operating time tZSI Delay time of all molded case circuit breakers which detect the short circuit but do not receive a blocking signal whe...

Страница 514: ...List of abbreviations C 1 Table of abbreviations 3VA molded case circuit breakers 514 Manual 04 2015 A5E03603177010 02 ...

Страница 515: ...tions in accordance with VDE Verband Deutscher Elektroingenieure Association of German Electrical Engineers mm2 conductor cross sections in accordance with AWG American Wire Gauge or kcmil Thousand Circular Mils AWG mm2 conversion table AWG kcmil Diameter d mm mm2 Metric equivalent mm2 AWG 20 0 81 1 0 52 0 75 18 1 02 1 0 82 1 16 1 29 1 1 3 1 5 14 1 63 1 2 08 2 5 12 2 05 1 3 31 4 10 2 59 1 5 26 6 8...

Страница 516: ...1 405 1000 29 26 1 507 1500 35 86 1 760 2000 41 45 1 1010 1 Diameter over Round Concentric Lay Stranded Conductors for Classes B C and D Source Standard UL83 Other conversions Conversion factors for units of length Length Conversion factor 1 inch 25 4 millimeters mm 1 centimeter 0 3937 inches Conversion factors for units of weight Weight Conversion factor 1 ounce Oz 28 35 grams g 1 pound lb 0 454 ...

Страница 517: ...egrees Fahrenheit C 80 C 176 F 60 C 140 F 40 C 104 F 20 C 68 F 0 C 32 F 5 C 23 F 10 C 14 F 15 C 5 F 20 C 4 F 25 C 13 F 30 C 22 F Conversion factors for tightening torques Tightening torque Conversion factor 1 Newton meter Nm 8 85 lbF in 8 85 lb in inch pound 1 36 Newton meter Nm 1 lbF ft 1 lb ft food pound 0 113 Newton meter Nm 1 lbF in 1 lb in inch pound 1 12 lb ft ...

Страница 518: ...Conversion tables 3VA molded case circuit breakers 518 Manual 04 2015 A5E03603177010 02 ...

Страница 519: ...e prospective current under defined operating conditions I2t value The I2t value is the thermal value of a prospective or a limited short circuit current let through current Let through current The let through current ID is the maximum instantaneous current value during the breaking time of a switching device or fuse Limited short circuit currents occur if the switching device reduces the amplitud...

Страница 520: ...an be interrupted by a switching device under certain conditions Rated frequency Design frequency for a switching device and reference value for other characteristics of the device Rated making capacity The rated making capacity is the maximum current that a switching device can conduct at the instant of closing in accordance with the utilization category at the relevant rated operational voltage ...

Страница 521: ...heating and will trip again in the event of a short circuit Rated short circuit breaking capacity The rated short circuit breaking capacity Icn of a molded case circuit breaker is the maximum current that the circuit breaker can safely interrupt at a specific rated operational voltage and rated frequency It is specified as an rms value With AC molded case circuit breakers the rated short circuit b...

Страница 522: ...deviates from the above The rated short time withstand current is specified for the distribution and or main busbars of a switchgear assembly Rated ultimate short circuit breaking capacity The rated ultimate short circuit breaking capacity Icu is the maximum short circuit current that a molded case circuit breaker is capable of interrupting test sequence 0 C0 formerly P 1 After the molded case cir...

Страница 523: ...Short circuits can cause thermal or mechanical damage to switching devices and other parts of an electrical installation Short circuit strength This is the resistivity of a switching device in the closed state along with its components e g trip units or a complete switchboard to the electrodynamic and thermal stresses which arise in the event of a short circuit The characteristic for the dynamic s...

Страница 524: ...period the circuit breaker trips inverse time delayed tripping Tripping current short time delayed When this current limit is exceeded the circuit breaker trips after a predefined time delay Tripping time Period of time from the instant of commencement of trip command output to the moment at which the command becomes irrevocable timing concept for the tripping of circuit breakers ...

Страница 525: ...conditions 60 Ambient temperature 60 Application examples 23 Applications 16 Arcing space 64 AUTO 262 Automation technology 366 Autotrip plunger 211 219 Auxiliary circuit connector 231 Auxiliary conductor terminal 199 Auxiliary contact 328 341 Auxiliary release 158 Auxiliary switch 150 156 AUX 151 Leading changeover switch LCS 151 Position signaling switch 225 B Basic RCD310 RCD310 Basic RCD320 RC...

Страница 526: ...chnology 209 Correction factor derating 491 Cubicle ground connection 508 Current limitation 53 Current selectivity 57 Current sensor 101 Current setting value 76 Current transformer for N conductor 410 Cylinder lock 273 277 D DC insulating plate 196 Delay time RCD 308 326 339 Derating 60 106 3VA1 489 Correction factor 491 Switch disconnector 499 Design 3VA1 51 3VA2 52 Digital input EFB300 380 Dig...

Страница 527: ...tions 87 Display 92 Line protection 110 Operator controls 90 Parameter 110 112 114 117 120 Setting parameters 98 ETU electronic trip unit 86 External current transformers for N conductor 410 F Fire protection 293 Flat terminal 190 Floor mounting 62 Free tripping 50 Front mounted rotary operator Door interlock 242 Interlocking 254 Locking 253 Switching position indicator 242 Full selectivity 58 G G...

Страница 528: ...nt device 355 Molded case circuit breaker 3VA1 18 3VA2 19 Motor operator 260 262 Reset mode 265 Mounting locations 146 Mounting plate 250 290 Mounting position 62 MRCD 298 355 N Neutral conductor Protection 78 Neutral conductor protection 78 No load switching operation 158 428 436 O Offset compensator 246 Operating mode EFB300 384 Operation of molded case circuit breaker 50 Optional installation v...

Страница 529: ... 311 317 Response current 308 326 338 Rogowski coil 101 Rotary operator Switching position 37 With shaft stub 253 S Sealing option 327 340 Selective contact system 20 Selectivity 56 Setting trip parameters 75 Shock resistance 61 Short circuit Alarm switch 153 Short circuit protection Instantaneous 77 Short time delayed 77 Short time delayed short circuit protection 77 Shunt trip 158 311 358 Side p...

Страница 530: ...4 TEST draw out version 216 Test mode EFB300 386 Test transformers TD500 407 Thermal image 76 Thermal trip unit 84 Thermal magnetic trip unit TMTU Threshold value 100 Through hole technology 316 TIA Totally Integrated Automation 362 Time selectivity 57 Time delay device 164 TIP Totally Integrated Power 362 TMTU 70 84 400 Hz system 136 Line protection 106 Parameter 107 108 109 Trip unit type 85 Tol...

Страница 531: ...Index 3VA molded case circuit breakers Manual 04 2015 A5E03603177010 02 531 ...

Страница 532: ......

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