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Description

2.5 Protection functions

3VA molded case circuit breakers with UL and IEC certification

Manual, 01/2019, L1V30435333-01

2.5.1

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):

Summary of Contents for Sentron 3VA

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Page 3: ...___________________ ___________________ SENTRON Protection devices 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 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 ...

Page 4: ...be operated 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 WARNIN...

Page 5: ...f circuit breakers handles and control elements 31 2 2 3 Wide range of accessories 34 2 2 4 Connection technology 36 2 3 Technical details 38 2 3 1 Circuit breaker identification 38 2 3 2 Operation 47 2 3 3 Current limitation 48 2 4 Standards and guidelines 50 2 4 1 Compliance with standards and electromagnetic compatibility 50 2 4 2 Certificates 51 2 4 3 Ambient conditions 51 2 4 4 Permissible mo...

Page 6: ...L molded case circuit breakers in line protection 132 3 2 Use as Motor Circuit Protector MCP for starter combinations 134 3 3 Use of the 3VA UL molded case circuit breaker as a molded case switch MCS 138 3 3 1 Compatibility of 3VA UL molded case switch and accessories 140 3 4 Use of 3VA UL molded case circuit breaker in DC systems 141 3 4 1 Introduction 141 3 4 2 Variants 142 3 4 3 Breaking capaci...

Page 7: ...ons 256 4 4 7 3 Combination with other accessories 257 4 5 Manual operators 258 4 5 1 Introduction 258 4 5 2 Operator control of the 3VA UL molded case circuit breakers with manual operators 259 4 5 3 Front mounted rotary operator 264 4 5 3 1 Elements of the front mounted rotary operator 264 4 5 3 2 Front mounted rotary operator with door interlock 265 4 5 3 3 Testing the tripping mechanism 267 4 ...

Page 8: ...inder locks for interlocking multiple 3VA UL molded case circuit breakers 311 4 7 3 2 Cable interlock module using a Bowden cable 316 4 7 3 3 Sliding bar 319 4 7 4 Rear interlock 321 4 8 Communication and system integration 327 4 8 1 System description 327 4 8 2 Communication system of the 3VA UL molded case circuit breaker 327 4 8 3 COM800 COM100 breaker data server 329 4 8 3 1 Area of applicatio...

Page 9: ... circuit breaker 383 5 4 Fault diagnostics 384 6 Technical specifications 385 6 1 Circuit diagrams 385 6 1 1 3VA5 molded case circuit breakers 385 6 1 1 1 Basic units 385 6 1 1 2 Accessories 387 6 1 1 3 Example 3VA5 molded case circuit breakers with accessories external internal 390 6 1 2 3VA6 molded case circuit breakers 391 6 1 2 1 Basic units 391 6 1 2 2 Accessories 392 6 1 2 3 Example 3VA6 mol...

Page 10: ... 4 Derating 454 6 4 1 Derating of 3VA5 molded case circuit breakers 454 6 4 2 Use of terminals with control wire tap 456 6 4 3 Additional correction factors with frequencies other than 50 60 Hz for 3VA5 molded case circuit breakers 457 6 4 4 Derating for the electronic trip units of 3VA6 molded case circuit breakers 458 A Appendix 465 A 1 Standards and approvals 465 B ESD guidelines 467 B 1 Electr...

Page 11: ...ith a contactor and motor protection relay transformers and capacitors Disconnecting means with features for stopping and switching off in an emergency main disconnecting means and EMERGENCY OFF switches in conjunction with lockable rotary operators The 3VA molded case circuit breakers certified to UL are available in the following versions 1 For line protection The overload and short circuit rele...

Page 12: ...stallation operation or maintenance Should additional information be desired please refer to the individual product instruction sheets or contact the local Siemens sales office The contents of this manual shall not become part of or modify any prior or existing agreement commitment or relationship The sales contract contains the entire obligation of Siemens The warranty contained in the contract b...

Page 13: ...tion system manual DE 3ZW1012 0VA20 0BB0 3VA molded case circuit breakers documentation https support industry siemens com cs ww en view 98746267 EN 3ZW1012 0VA20 0BC0 Automatic transfer control device ATC5300 Manual DE A5E02469034 01 ATC5300 automatic transfer control device http support automation siemens com WW view de 41909986 0 en EN A5E02469035 01 ATSE Remote Control Software Manual DE A5E02...

Page 14: ...Introduction 1 2 Product specific information 3VA molded case circuit breakers with UL and IEC certification 12 Manual 01 2019 L1V30435333 01 ...

Page 15: ...ications Molded case circuit breakers and accessories in the system 2 1 1 Applications and possible uses The 3VA UL molded case circuit breakers can be used in various areas in infrastructure industry or residential and commercial buildings where they perform different protection tasks Portions of this manual are intended to familiarize customers and users residing outside the North American marke...

Page 16: ... USA UL NEC all voltages that occur in the respective system configuration are always specified see table below When devices are selected very close attention must be paid to which system configuration is present at the location of use and the system configuration for which the individual devices are approved The main configurations in industry and in non residential buildings are 3 phase networks...

Page 17: ...t voltage such as 240 V 480 V or 600 V may be used These devices must be able to switch the full voltage between the phases and between one phase to ground Grounded wye 480Y 277 V 3 phase 4 wire Short circuit current rating of the control panel main power circuit An industrial control panel must be marked with a short circuit current rating SCCR In IEC terms this corresponds approximately to the I...

Page 18: ...r use with several sizes of circuit breaker from all the 3VA UL ranges help to cut costs and save time The new 3VA UL molded case circuit breakers are available in the following ranges 3VA5 with thermal magnetic trip units 3VA6 with electronic trip units The 3VA5 molded case circuit breakers are available in the following versions 1 and 3 pole version in size up to 125 A 3VA51 2 3 pole and 3 pole ...

Page 19: ...52 with 480 V AC Breaking capacity of 50 kA to 100 kA with 500 V DC Fixed mounting Thermal magnetic trip units AC DC applications Modular and easy to fit internal accessories with diverse functions Uniform accessories platform across all 3VA UL molded case circuit breakers Compact dimensions Due to its small dimensions the 3VA UL molded case circuit breaker 125 A 3VA51 is ideally suited to the pro...

Page 20: ...tronic trip units ETU Retrofittable communication for ETU 5 series and 8 series Depending on the ETU Integrated metering function for voltages currents powers etc AC applications No derating up to 50 C Modular and easy to fit internal accessories with diverse functions Uniform accessories platform across all 3VA UL molded case circuit breakers Electronic Trip Units ETU with different setting value...

Page 21: ...tor against overload and short circuit N neutral Protection against residual currents to ground G Ground fault Two possibilities are available for protection against residual currents to ground Tripping of the breaker when a ground fault is present and thus disconnection of the system Alarm only indication via LED that a ground fault is present The signal is also available through communication an...

Page 22: ...es are standard OCPDs and OCPDs listed for operation at 100 of their rating commonly referred to as 100 rated For standard OCPDs the rating selected must be no less than the sum of 100 of the non continuous loads and 125 of the continuous loads 3 hours or more For OCPDs listed for operation at 100 of their rating the calculation for the minimum rating is based on the sum of 100 of the non continuo...

Page 23: ...iption 2 1 Overview applications and portfolio 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 21 2 1 4 Detailed information about applications and possible uses ...

Page 24: ...and portfolio 3VA molded case circuit breakers with UL and IEC certification 22 Manual 01 2019 L1V30435333 01 2 1 5 Technical specifications 1 Applies to In 15 A to 90 A 2 In 100 A to 125 A 14 kA 3 In 40 A to 90 A 18 kA 100 A to 125 A 14 kA ...

Page 25: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 23 ...

Page 26: ...rm message but does not trip the circuit breaker 2 Breaking capacities in combination with contactors SCCR ratings may differ 3 Integrated instantaneous short circuit release for self protection 4 The short circuit current rating SCCR rating is the maximum permissible short circuit current at the installation location of the MCS in combination with an appropriate additional overload protection dev...

Page 27: ...alarm message but does not trip the circuit breaker 2 Breaking capacities in combination with contactors SCCR ratings may differ 3 Integrated instantaneous short circuit release for self protection 4 The short circuit current rating SCCR rating is the maximum permissible short circuit current at the installation location of the MCS in combination with an appropriate short circuit protection device...

Page 28: ...ircuit breakers come with a large portfolio of accessory components that depending on the type of accessory can be flexibly installed internally or externally regardless of the size of circuit breaker 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 1 Only possible with fixed m...

Page 29: ...Description 2 1 Overview applications and portfolio 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 27 Overview of accessories in the system ...

Page 30: ...e provides an integrated system with regard to operation functionality and installation This principle is embodied in the basic units and in all internal and external accessories The internal and external accessories of the 3VA UL molded case circuit breakers offer the following benefits Standardized methods of operation Standardized scope of functions Standardized installation procedures The same...

Page 31: ...rator Manual operators Plug in and draw out technology Optional installation variants The 3VA UL molded case circuit breakers are available in the following installation variants Fixed mounted Plug in technology Draw out technology Plug in and draw out technology provide the option of quickly replacing the molded case circuit breakers during maintenance and of establishing visible electrical isola...

Page 32: ...cuit breaker is connected to the main circuit The auxiliary circuits are also connected TEST In the TEST position the main contacts of the molded case circuit breaker are not connected to the main circuit but the auxiliary components are connected to the control circuit This allows the functionality of the auxiliary circuit and all of its components auxiliary switches auxiliary releases communicat...

Page 33: ...irrelevant Motor operators 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 visibili...

Page 34: ...es in one of these positions depending on the status of the molded case circuit breaker The breaker 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 breaker position in the colors red yellow an...

Page 35: ...s a hand lever operator for operating the breaker from the outside of the control panel The handle is connected to the switching mechanism via a Bowden cable Color coded control elements The control elements on the thermal magnetic and electronic trip units are color coded Each colored control element is assigned to a corresponding protective function helping you to make the required settings quic...

Page 36: ... be installed within the 3VA5 and 3VA6 ranges regardless of the circuit breaker size Installation is carried out quickly and easily by simply snapping on and screwing the connecting cables Through color and mechanical coding and corresponding information found on the inside of the accessory cover installation at the right place in the circuit breaker is ensured Color coding of accessories The inte...

Page 37: ... functions of individual accessories The cylinder lock and communication accessories shown next to the internal accessories are explained in chapters Locking and interlocking Page 302 and Communication and system integration Page 327 Fast assembly of motor operators The motor operators have been designed for quick and easy mounting and removal The internal accessories are therefore easily accessib...

Page 38: ...either internally or externally to the molded case circuit breaker The connection technology can be easily integrated in the new range of 3VA UL 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 Distribution wire connector for 6 ca...

Page 39: ...Cables and busbars The new range of 3VA UL molded case circuit breakers are designed for different cables and busbars Different cable types e g Circular conductor UL cable class Solid Stranded UL cable class B Stranded UL cable class C Rigid busbars Different materials Cables busbars made of copper Cables busbars made of aluminum ...

Page 40: ... This chapter provides an overview of the technical details of the 3VA UL molded case circuit breakers The topics discussed in this chapter are listed below Circuit breaker identification Operation Current limitation Breaking capacity 2 3 1 Circuit breaker identification Each 3VA UL molded case circuit breaker can be clearly identified in several ways ...

Page 41: ... information and is thus clearly identifiable Connection information adhesive label Adhesive label insert in accessory compartment Detailed information on installed connection technology adhesive label Internal accessories adhesive label Connection socket for EFB300 external function box and MMB300 maintenance mode box on the ETU Connection possibility for an external current transformer for neutr...

Page 42: ... panel of the circuit breaker Circuit breaker designation UL Type Listing CE approval mark Key electrical data IEC Knowledge Manager see below Ampere rating Date and location of manufacture Safety labels Product version Circuit breaker article number MLFB Trip unit designation Size and breaking capacity class Labeling field for installed connection technology Key electrical data NEMA UL approval m...

Page 43: ...ssed and viewed in this way Key electrical data NEMA The key electrical data for the UL market on the left side of the molded case circuit breaker when viewed from above contains the following information UL CSA and NOM approval marks if valid for this circuit breaker NEMA breaking capacity values with various voltages HID type information see below HACR type information see below HID and SWD type...

Page 44: ...ors use compressors for coolant and fans for ventilation systems with cold air The HACR mark on molded case circuit breakers certified according to UL 489 is actually no longer required Based on changes in the National Electrical Code NEC and in UL 489 all UL 489 certified switching devices today are automatically HACR certified and may bear the HACR mark Key electrical data IEC The key electrical...

Page 45: ... production Article number for operating instructions Circuit breaker article number List of allowed connection technology The table shows the brief terminal designation on the left of all terminals and connections that may be installed with this circuit breaker These terminal designations are unique On the right in the table are the order numbers for these terminals The order number is also expre...

Page 46: ...ompartment on the right you can find two adhesive label inserts for 3VA UL one for use of the circuit breaker in IEC applications and the other for use of the molded case circuit breaker in UL applications When an accessory e g motor operator or manual operator is mounted on the circuit breaker this adhesive label can be attached to the accessory The adhesive labels are shown in the following exam...

Page 47: ...g and outgoing sides must be ordered separately for each circuit breaker The adhesive label shown below is enclosed with the terminals in duplicate An area is kept free on the left side of the accessory cover for the purpose of attaching the adhesive label The user thus always has all relevant information on the installed connection technology of the circuit breaker concerned The adhesive label co...

Page 48: ... installed accessory components on the Internal accessories adhesive label This will enable you to ascertain which accessories are installed without removing the accessory cover and to use the information for example to reorder components In addition the breaking capacities according to UL 489 and IEC 60947 2 are named here again This information is identical to the information on the accessory co...

Page 49: ... contacts from the TRIP 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 UL molded case compact circuit breakers have a free tripping capability This function ensures that the breaker cannot be prevented from tripping eve...

Page 50: ...ties In the event of a short circuit the molded case circuit breaker significantly reduces the magnitude of let through current i e it reduces the current loading of downstream equipment lower thermal load fewer dynamic forces The level of let through energy is also reduced to a considerable extent The 3VA UL molded case circuit breakers are designed as current limiting molded case circuit breaker...

Page 51: ...t current is reached These limits have been coordinated and optimized to suit the overall device characteristics This substantially reduces the thermal and mechanical loading on the molded case circuit breaker and the electrical installation Fixed contacts Rotary contact system Arc splitter chute The switching pole cassettes are optimized for high breaking capacity and their rotary double contact ...

Page 52: ...ity Ambient conditions Degrees of protection 2 4 1 Compliance with standards and electromagnetic compatibility The 3VA UL molded case circuit breakers meet the requirements of the following standards UL 489 UL 1053 IEC EN 60947 1 IEC EN 60947 2 IEC EN 60947 6 1 CISPR11 Class A and Class B The 3VA UL molded case circuit breakers are adequately protected against the following factors Electrostatic c...

Page 53: ...mperatures from 25 C to 70 C 3VA UL thermal magnetic circuit breakers are calibrated for use at 40 C There may be reductions in the rated operational current depending on ambient conditions frame size and accessories used Derating Page 454 Please contact Siemens concerning operating conditions that are outside the values specified in the derating table The permissible storage temperature in origin...

Page 54: ...t the requirements relating to mechanical and electromechanical vibration strength according to IEC EN 60068 and the specifications of the shipbuilding societies The circuit breakers resist impacts of up to 10 g without tripping and are tested to withstand without damage their operating conditions with shock impact according to IEC EN 60068 2 27 Ea with 150 m s 11 ms Installation altitudes When 3V...

Page 55: ...53 2 4 4 Permissible mounting positions and mounting positions with accessories The tested mounting positions for 3VA UL molded case circuit breakers are illustrated below Please adhere to local codes and standards for specific application regulations 1 3VA51 A motor operator cannot be used with DIN rail mounting 2 Not allowed by NEC ...

Page 56: ... gases prevent a flashover to grounded parts prevent arcing or short circuit currents to live sections The following safety clearances apply to 3VA molded case circuit breakers with UL and IEC approval Molded case circuit breaker without additional insulation measures or with short terminal cover Molded case circuit breaker with additional insulation measures phase barrier or long terminal cover A...

Page 57: ...e connector and rear terminals 2 Can be used for connection methods wire connector large bus connectors extended and bus connectors offset 3 Is not permitted in this voltage range for IEC applications Minimum clearance for 3VA6 molded case circuit breakers 1 Can be used for connection methods box terminal screw type terminal internal wire connector and rear terminals 2 Can be used for connection m...

Page 58: ...sbar connection does not reduce the through air insulation clearance Additional insulation measures such as long terminal covers or phase barriers 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 insulation measure combination NOTICE Damage to the molded case circuit...

Page 59: ...een the molded case circuit breakers placed side by side For more details please refer to the relevant operating instructions of the circuit breakers The following safety clearances apply to molded case circuit breakers installed directly on top of each other x See tables below for minimum clearance Insulation of cable Insulation of busbar Insulation between the molded case circuit breakers Minimu...

Page 60: ... plug in socket or busbar terminal 2 Applies to installation variant Rear connection for 690 V applications diagram top right Maximum clearance to first fixing point of cable or busbar The following figure and tables show the recommended maximum clearance between molded case circuit breakers and the first fixing point of the cable or busbar Fixing of cable Fixing of busbar Recommended maximum clea...

Page 61: ...aker venting Adequate venting space must be taken into account during planning and installation of the molded case circuit breakers In particular the following must be observed Ventilation openings must be kept free Ionized gases must not be routed in the direction of connecting terminals or non insulated busbars Venting spaces must not be blocked by busbars installed too close to one another or b...

Page 62: ...rcuit breakers are tested in appropriate steel enclosures as per UL 489 The minimum enclosure dimensions are summarized in the following tables by size A Minimum enclosure height B Minimum enclosure width C Minimum enclosure depth Minimum enclosure dimensions for 3VA5 molded case circuit breakers Minimum enclosure dimensions for 3VA6 molded case circuit breakers 1 with plug in socket 7 87 200 mm ...

Page 63: ...le system for electrical devices themselves in the UL world According to NEMA 250 there is a type rated system for electrical enclosures and panels In NFPA79 Electrical Standard for Industrial Machinery in which the NEMA 250 ratings for electrical enclosures are provided in detail requirements for electrical equipment without enclosure can also be found in section 6 Protection from Electrical Haza...

Page 64: ...435333 01 2 4 9 Environmental protection The 3VA UL molded case circuit breakers already meet the requirements of the European RoHS Directive 2011 65 EU Restriction of the use of certain hazardous substances in electrical and electronical equipment even though these products will not fall under this directive until July 22 2019 ...

Page 65: ...iew of the protection system of 3VA UL 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 ...

Page 66: ...tion 64 Manual 01 2019 L1V30435333 01 2 5 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 ...

Page 67: ...Description 2 5 Protection functions 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 65 ...

Page 68: ...different protection devices the current is sometimes specified as a multiple of the current setting value and the time is specified in seconds Tripping characteristics for thermal magnetic trip units The graph is drawn in the log log coordinate system Tripping characteristics for electronic trip units The graph is drawn in the log log coordinate system Response threshold of the instantaneous prot...

Page 69: ...pplementary conditions The settings selected for the trip unit of a molded case circuit breaker depend on the technical environment e g switchboard and applications and the type of equipment to be protected The task of determining the protection settings in accordance with the valid rules is the responsibility of the Engineer of Record Basic rules for setting different trip parameters ...

Page 70: ...trip units The setting value of the current and the breaker rating is designated with Ir and the associated time delay with tr The time delay with the device specific reference point defines the current dependent curve shape of the setpoint characteristic With 3VA UL molded case circuit breakers this reference point of the overcurrent trip is 6 times the current setting value Ir The following math...

Page 71: ...ion function responds if the current in at least one phase exceeds the set tripping current Isd for the set delay period tsd The S release has a characteristic curve with current dependent characteristic I2t i e the delay time is dependent on the energy content of the short circuit current present The electronic trip units ETU 5 series and 8 series can be optionally switched over to a current inde...

Page 72: ... When a ground fault current is detected the breaker does not trip Rather only an indication is provided via the ETU display and if desired via a programmable digital output on the External Function Box EFB and or through communications This allows the system to remain in operation On 4 pole molded case circuit breakers and 3 pole molded case circuit breakers with external current transformer for ...

Page 73: ...ree phase currents and the neutral conductor current for the vectorial summation For 4 pole molded case circuit breakers the fourth current transformer is internally installed for the neutral conductor 3 pole molded case circuit breaker in unbalanced systems 3 pole 3VA with external N transformer Trip unit variants 3 pole 3VA6 molded case circuit breaker with external N transformer ETUs 5 series E...

Page 74: ... is directly output ETU556 and ETU856 or the circuit breaker is tripped ETU560 and ETU860 Note This measuring method must be activated explicitly in the ETU On the display under menu item GF M switch over from rES measurement method 1 to d Ir measurement method 2 3 pole molded case circuit breaker external current transformer in the grounded neutral point of the transformer Trip unit variants 3 po...

Page 75: ...n Possible reasons for implementing neutral conductor overload protection are The neutral conductor has a smaller cross section than the phase conductors Higher harmonic components in the system can be expected 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...

Page 76: ... the neutral conductor protection function Tripping current IN Adjustable as a proportion of the current setting Ir for overload protection Tripping delay Corresponds to the delay 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 ...

Page 77: ... 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 via rotary selector switches for ETU 5 series and 8 series trip units via the buttons on the ETU display via a PC using powerconfig See also Use of the 3VA UL molded case circuit breakers in line protec...

Page 78: ...total 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 greater than Ist but less than Ii will have a delay of no more than 50 ms Note Backward compatibility The ZSI function of 3VA UL molded case circuit breakers is compatible with the ZSI ...

Page 79: ...irtual tripping 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 ins...

Page 80: ... 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 plus the mechanical clearing time 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...

Page 81: ...s of a thermal trip unit for protecting against overload and a magnetic trip unit for protecting against short circuits Both trip units are series connected Thermal magnetic trip units are available with Fixed Thermal Fixed Magnetic FTFM or Fixed Thermal Adjustable Magnetic FTAM settings 2 6 2 Application cases and trip unit types The table below illustrates the applications for which different ty...

Page 82: ...lowing concepts Complete 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 summation formation is more exact Evaluation of the current measurement values and constant comparison with the tripping limits Tripping by means of a maglatch Electronic trip...

Page 83: ...requirement is to provide energy reducing maintenance switching with local status indicator The Siemens DAS when used with a remote external switch meets this requirement 3VA6 molded case circuit breakers and Dynamic Arc Sentry All 3VA6 molded case circuit breakers are equipped with the Dynamic Arc Sentry mode DAS mode When the 3VA6 molded case circuit breakers are in Dynamic Arc Sentry mode the i...

Page 84: ...over of the protection parameters to DAS mode via the MMB300 maintenance mode box applied with the appropriate control scheme You can find more information about the MMB300 maintenance mode box in chapter MMB300 maintenance mode box Page 351 Additionally it is possible to activate DAS mode for the ETUs 5 series and 8 series directly at the molded case circuit breakers via the keys on the LCD displ...

Page 85: ...c trip unit 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 83 2 7 4 Protection functions 1 Available in a version with external current transformer for N conductor or 4 pole breaker ...

Page 86: ...on 84 Manual 01 2019 L1V30435333 01 2 7 5 Operator controls The following figure shows the available ETU types of the 3VA6 molded case circuit breakers You can decide which ETU to select according to the area of application Name of the ETU Front interface Pushbuttons LED display Setting buttons LCD ...

Page 87: ...Description 2 7 Electronic trip unit 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 85 LED displays The following table explains what the LED displays mean ...

Page 88: ...erating instructions can be found in chapter Guide to setting the tripping characteristic Page 67 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 Note The backlighting of the LED display is only active with an external voltage supply e g by the COM060 communication module by the 24 V modu...

Page 89: ...owing table explains 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 ...

Page 90: ...Description 2 7 Electronic trip unit 3VA molded case circuit breakers with UL and IEC certification 88 Manual 01 2019 L1V30435333 01 ...

Page 91: ...3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 89 Standard display Alarm display Active alarms are displayed consecutively in screens AV1 AV5 If no alarms are active these screens are concealed ...

Page 92: ...cription 2 7 Electronic trip unit 3VA molded case circuit breakers with UL and IEC certification 90 Manual 01 2019 L1V30435333 01 Measured value display The table below explains the measured value display ...

Page 93: ...olded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 91 Parameter display The table below explains the parameter display 1 Dependent on the rated current of the molded case circuit breaker and the ETU version ...

Page 94: ...t the parameter 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...

Page 95: ...ce 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 different types of ETU when not powered by an auxiliary control voltage ...

Page 96: ...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 the EFB300 external function box and transferred via t...

Page 97: ...lt 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 voltage values are always positiv...

Page 98: ...ip unit 3VA molded case circuit breakers with UL and IEC certification 96 Manual 01 2019 L1V30435333 01 The following table provides an overview of the setting values 1 Depending on ETU version Value can be read Value can be edited ...

Page 99: ...Description 2 7 Electronic trip unit 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 97 1 Depending on ETU version Value can be displayed read ...

Page 100: ...Description 2 7 Electronic trip unit 3VA molded case circuit breakers with UL and IEC certification 98 Manual 01 2019 L1V30435333 01 1 Depending on ETU version Value can be displayed read ...

Page 101: ...ircuit breaker of machines Branch circuit breaker for predominantly resistive loads Group switch for loads that are jointly protected 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 p...

Page 102: ... equipped with the following trip units are suitable for use in line protection 3VA5 with thermal magnetic trip units TM 2 series Page 102 3VA6 with electronic trip units ETU 3 series Page 105 ETU 5 series Page 117 ETU 8 series Page 117 Sealable transparent protective cover of trip units All trip units for the 3VA UL molded case circuit breakers have a sealable protective cover Sealing this protec...

Page 103: ...iew of the trip units 1 9th and 10th digit of article number e g 3VA6115 5JP31 0AA0 2 Neutral conductor protection 3 See Use of the 3VA UL molded case circuit breaker as a molded case switch MCS Page 138 4 0 5 50 cannot be set for molded case circuit breakers with rated operational current 40 A 5 0 2 20 cannot be set for molded case circuit breakers with rated operational current 40 A ...

Page 104: ...loy a temperature dependent bimetal to provide overload protection The setting values are calibrated at an ambient temperature of 40 C Compensation factors must be applied for ambient temperatures greater than 50 C You will find more information and derating factors in chapter Derating Page 454 Thermal magnetic trip unit TM210 LI Line protection FTFM function LI The thermal magnetic trip unit TM21...

Page 105: ...Applications 3 1 Use of the 3VA UL molded case circuit breakers in line protection 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 103 TM210 parameters ...

Page 106: ...ith UL and IEC certification 104 Manual 01 2019 L1V30435333 01 Thermal magnetic trip unit TM230 LI Line protection FTAM function LI The thermal magnetic trip unit TM230 has Fixed parameter setting Ir for overload protection L Adjustable parameter setting Ii for instantaneous short circuit protection I TM230 parameters ...

Page 107: ...01 105 3 1 2 2 Electronic trip units ETUs for line protection applications The following electronic trip units are suitable for use in line protection applications ETU320 LI ETU330 LIG ETU350 LSI ETU550 LSI ETU556 LSI G alarm only ETU560 LSIG ETU820 LI ETU830 LIG ETU850 LSI ETU856 LSI G alarm only ETU860 LSIG Electronic trip unit ETU320 LI ETU320 LI 3 pole ETU320 LI 4 pole ...

Page 108: ...meter settings Ir and tld for overload protection L Adjustable parameter setting Ii for instantaneous short circuit protection I With 4 pole versions only Neutral conductor protection N which can be deactivated ETU320 parameters The parameters are selected with the setting knob The diagram below shows an example of the possible selections with setting knob Ir The values for the respective setting ...

Page 109: ...ase circuit breakers in line protection 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 107 Long time delay setting values tld Instantaneous pickup setting values Ii Neutral current setting values IN ...

Page 110: ... 0 85 0 9 0 95 1 0 tld Adjustable in 10 steps from 0 5 to 12 15 s or 17 s tld is the tripping time with 6 x Ir The ETU320 LI has a permanently active thermal memory Instantaneous short circuit protection I Ii Adjustable in 10 steps from 1 5 to 9 10 11 12 x In dependent on the frame size Neutral conductor protection N The neutral conductor protection function is available for 4 pole molded case cir...

Page 111: ...justable parameter settings Ir and tld 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 ETU330 parameters The parameters are selected with the setting knob The diagram below shows an example of ...

Page 112: ...ed case circuit breakers in line protection 3VA molded case circuit breakers with UL and IEC certification 110 Manual 01 2019 L1V30435333 01 Current setting values Ir Long time delay setting values tld Instantaneous pickup setting values Ii ...

Page 113: ...1 2019 L1V30435333 01 111 Ground fault pickup setting values Ig Neutral current setting values IN Overload protection L Ir Adjustable in 10 steps from 0 4 to 1 0 x In 0 4 0 5 0 6 0 7 0 75 0 8 0 85 0 9 0 95 1 0 tld Adjustable in 10 steps from 0 5 to 12 15 s or 17 s tld is the tripping time with 6 x Ir The ETU330 LIG has a permanently active thermal memory ...

Page 114: ...rom 1 5 to 9 10 11 12 x In dependent on the frame 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 The neutral conductor protection function is available for 4 pole molded case circuit breakers only IN In ...

Page 115: ...parameter settings Ir and tld 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 ETU350 parameters The parameters are selected with the setting knob The diagram below shows an exa...

Page 116: ...ed case circuit breakers in line protection 3VA molded case circuit breakers with UL and IEC certification 114 Manual 01 2019 L1V30435333 01 Current setting values Ir Long time delay setting values tld Instantaneous pickup setting values Ii ...

Page 117: ...case circuit breakers in line protection 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 115 Short time pickup setting values Isd Short time delay setting values tsd Neutral current setting values IN ...

Page 118: ... LSI has a permanently active thermal memory Short time delayed short circuit protection S Isd Adjustable in 10 steps from 1 5 to 9 10 x Ir tsd Adjustable in 6 steps from 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 fr...

Page 119: ...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 MMB300 maintenance mode 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 ...

Page 120: ...ctronic trip unit ETU820 LI ETU820 LI 3 pole and 4 pole Line protection function LI The electronic trip unit ETU820 has Adjustable parameter settings Ir and tld for overload protection L Adjustable parameter setting Ii for instantaneous short circuit protection I With 4 pole versions only Adjustable parameter setting IN for protection of neutral conductor N ETU820 parameters 3 pole ...

Page 121: ...teps of 1 A tld Adjustable from 0 5 to 13 15 17 20 25 s dependent on rated operational current and frame size with a reference point of 6 x Ir In steps of 0 1 s The ETU820 LI has a permanently active thermal memory Instantaneous short circuit protection I Ii Adjustable from 1 5 to 9 10 11 12 x In dependent on the frame size In steps of 1 A Neutral conductor protection N Protection of the neutral c...

Page 122: ...LIG 3 pole and 4 pole Line protection function LIG The electronic trip unit ETU830 has Adjustable parameter settings Ir and tld 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 adjustable parameter setting IN for protection of neutral conductor N ETU...

Page 123: ...has a permanently active thermal memory Instantaneous short circuit protection I Ii Adjustable from 1 5 to 9 10 11 12 x In dependent on the rated operational current and the frame size In steps of 1 A Ground fault protection G Ig Adjustable from 0 2 0 4 to 1 0 x In in absolute current values In steps of 1 A tg Adjustable from 0 05 to 0 8 s with a reference point of 2 x Ig In steps of 0 01 s An ala...

Page 124: ... 3 pole and 4 pole units Line protection function LSI The electronic trip units ETU550 and ETU850 have Adjustable parameter settings Ir and tld 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 neut...

Page 125: ...with external current transformer for N conductor ETU550 ETU850 parameters 4 pole version Overload protection L Ir Adjustable from 0 4 to 1 0 x In in absolute current values Ir 40 A In steps of 0 5 A Ir 100 A In steps of 1 A tld Adjustable from 0 5 to 13 15 17 20 25 s dependent on rated operational current and frame size in steps of 0 1 s with a reference point of 6 x Ir The ETU550 LSI and ETU850 ...

Page 126: ...tant can be deactivated Instantaneous short circuit protection I Ii Adjustable from 1 5 to 9 10 12 x In dependent on rated operational current and frame size In steps of 1 A Neutral conductor protection N The neutral 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 Ad...

Page 127: ...ole Line protection function LSI G The electronic trip units ETU556 and ETU856 have Adjustable parameter settings Ir and tld 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 alarm G With 4 pole ver...

Page 128: ...th external current transformer for N conductor ETU556 ETU856 parameters 4 pole Overload protection L Ir Adjustable from 0 4 to 1 0 x In in absolute current values Ir 40 A In steps of 0 5 A Ir 100 A In steps of 1 A tld Adjustable from 0 5 to 13 15 17 20 25 s dependent on rated operational current and frame size with a reference point of 6 x Ir In steps of 0 1 s The ETU556 LSI G and ETU856 LSI G ha...

Page 129: ...table from 0 2 0 4 to 1 0 x In in absolute current values In steps of 1 A tg Adjustable from 0 05 to 0 8 s with a reference point of 2 x Ig In steps of 0 01 s An alarm threshold IgA from 0 2 0 4 to 1 x In can also be set In steps of 1 A The current dependent curve shape I2t constant can be deactivated If a ground fault is detected the ETU556 or ETU856 only issues an alarm without tripping the circ...

Page 130: ...protection function LSIG The electronic trip units ETU560 and ETU860 have Adjustable parameter settings Ir and tld 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...

Page 131: ...ith external current transformer for N conductor ETU560 ETU860 parameters 4 pole version Overload protection L Ir Adjustable from 0 4 to 1 0 x In in absolute current values Ir 40 A In steps of 0 5 A Ir 100 A In steps of 1 A tld Adjustable from 0 5 to 13 15 17 20 25 s dependent on rated operational current and frame size with a reference point of 6 x Ir In steps of 0 1 s The ETU560 LSIG and ETU860 ...

Page 132: ... current and frame size In steps of 1 A Ground fault protection G The detection of the ground fault current is based on a vectorial summation of the phase currents and the neutral conductor current for 4 pole or 3 pole circuit breakers with external current transformer for N conductor Ig Adjustable from 0 2 0 4 to 1 0 x In In steps of 1 A tg Adjustable from 0 05 to 0 8 s with a reference point of ...

Page 133: ...utral 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 circuit breakers with external current transformer for N conductor In 40 A 0 4 to 1 6 x In In 100 A 0 2 to 1 6 In 4 pole circuit breakers In 40 A 0 4 to 1 6 x In In 100 A 0 2 to 1...

Page 134: ...ertification 132 Manual 01 2019 L1V30435333 01 3 1 3 Overview of 3VA UL molded case circuit breakers in line protection 1 Applies to In 15 A to 90 A 2 In 100 A to 125 A 14 kA 3 In 40 A to 90 A 18 kA 100 A to 125 A 14 kA 4 The 3VA5 3VA6 molded circuit breakers are supplied without connectors by default These must be ordered separately ...

Page 135: ...L1V30435333 01 133 For the rated ultimate short circuit breaking capacity and rated service short circuit breaking capacity with direct current see chapter Use of 3VA UL molded case circuit breaker in DC systems Page 141 4 The 3VA5 3VA6 molded circuit breakers are supplied without connectors by default These must be ordered separately 5 G alarm no G protection ...

Page 136: ...e motor circuit protector provides the short circuit protection and the disconnector function It is therefore equipped with an adjustable and instantaneous short circuit release The contactor is responsible for operational switching of the feeder The overload relay provides the overload protection These can be specially matched to the motor Siemens offers two versions of the 3VA UL motor circuit p...

Page 137: ...0 A 2 In 40 A to 90 A 18 kA In 100 to 125 A 14 kA Trip units for starter combinations 1 9th and 10th digit of article number e g 3VA6115 5MH31 0AA0 Note For the relevant short circuit current ratings SCCR ratings of the combination of contactor and overload relay please refer to the corresponding UL certificates for contactor and overload relay These can be found in the Service and Support Portal ...

Page 138: ...ons 3VA molded case circuit breakers with UL and IEC certification 136 Manual 01 2019 L1V30435333 01 TM120M magnetic trip unit Starter protection motor circuit protector AM function I The TM120M magnetic trip unit has an adjustable short circuit release Ii TM120M parameters ...

Page 139: ...5333 01 137 ETU310M electronic trip unit ETU310M 3 pole ETU310M parameters The parameters are selected with the setting knob The diagram below shows the possible selections The values for the respective setting are listed in the following table Instantaneous short circuit protection I Ii adjustable in 10 steps from 3 to 12 13 15 x In dependent on the frame size ...

Page 140: ...of loads Molded case switches can be used to switch equipment and parts of electrical installations up to their rated current and rated voltage In contrast to the switch disconnector according to IEC 60947 3 the molded case switch has a short circuit release for self protection up to a specified maximum short circuit current and is certified to UL 489 The special advantage of the molded case switc...

Page 141: ...er in 3 pole frame 2 The short circuit current rating SCCR rating is the maximum permissible short circuit current at the installation location of the molded case switch when a corresponding overload protection device is used 3 Integrated instantaneous short circuit release for self protection MCS110 magnetic trip unit Molded case switch FM function I for self protection The MCS110 magnetic trip u...

Page 142: ...ity of 3VA UL molded case switch and accessories The 3VA UL molded case switches are derived from the molded case circuit breakers and share the following Sizes Dimensions Mounting options Procedure for installing accessories This means that for example a shunt trip can trip the molded case switches via remote control or the molded case switch can be opened or closed with a door mounted rotary ope...

Page 143: ...ilar to the one applied to high alternating currents i e by current limiting A high arc voltage builds up in molded case circuit breakers which forces the current to zero when the source voltage supply system voltage is exceeded Overloads are interrupted by a completely different principle to the method applied in AC networks With direct currents there is no periodic zero crossing and thus also no...

Page 144: ...wever a correction factor must be applied to the magnetic trip unit relative to the actual current rating Example 3VA51 100 A TM230 FTAM If the switching device is to trip instantaneously on an overcurrent of 1000 A the parameter Ii for instantaneous short circuit current protection I is set to Ii 1000 A x 0 7 700 A For further information on trip units and details about the setting parameters ple...

Page 145: ...ations 3 4 Use of 3VA UL molded case circuit breaker in DC systems 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 143 3 4 3 Breaking capacity with direct current ...

Page 146: ...ations 3 4 Use of 3VA UL molded case circuit breaker in DC systems 3VA molded case circuit breakers with UL and IEC certification 144 Manual 01 2019 L1V30435333 01 3 4 4 Recommended circuits for DC systems UL ...

Page 147: ...ded case circuit breaker in DC systems 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 145 Note 2 pole version in 3 pole frame 2 3 pole Only the outer poles may be used pole 1 2 and pole 5 6 ...

Page 148: ...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 paths in series in a circuit with 4 pole molded case circuit breakers Note DC 2 pole all pole disconnection non grounded system If there is no possibility of a double ground fault occurring or if any g...

Page 149: ...VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 147 Note 2 pole version in 3 pole frame 2 3 pole Only the outer poles may be used pole 1 2 and pole 5 6 Further circuits are available on request See also Insulating equipment Page 203 ...

Page 150: ...tes that an insulation monitoring device must be installed 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 The Siemens 3VA UL molded case circuit breakers for line protection with thermal magnetic and electronic trip units are suitable ...

Page 151: ...rounded transformer Molded 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 ra...

Page 152: ...Applications 3 5 Use of 3VA UL molded case circuit breakers in IT systems according to IEC 60947 2 3VA molded case circuit breakers with UL and IEC certification 150 Manual 01 2019 L1V30435333 01 ...

Page 153: ...ories for 3VA UL molded case circuit breakers You can adapt the 3VA UL molded case circuit breakers to their respective tasks with a comprehensive range of accessories The table below shows the 3VA UL molded case circuit breakers in which the accessories can be installed and which sizes are covered by the same accessory component ...

Page 154: ...nting locations of 3VA UL 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 ...

Page 155: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 153 3VA5 molded case circuit breakers ...

Page 156: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers with UL and IEC certification 154 Manual 01 2019 L1V30435333 01 3VA6 molded case circuit breakers ...

Page 157: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 155 ...

Page 158: ...gh Power 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 have the same functionality but differ in terms of the following features Connection technology HQ One conductor per c...

Page 159: ...X The purpose of 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 t...

Page 160: ...indicate the following conditions Overload L and neutral conductor overload Short circuit S I Ground fault tripping G 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 STF Undervoltage release UVR Univers...

Page 161: ... 4 2 Internal accessories 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 159 4 2 3 Contact sequence diagrams Main contacts open Auxiliary contacts open Contacts closed ...

Page 162: ...4 2 4 Technical specifications of auxiliary and alarm switches 1 Safe separation in the case of side by side construction of auxiliary switches and auxiliary releases only up to 440 V and in systems up to an impulse voltage withstand level of 4 kV 2 HP switches without adjacent switches not in mounting locations 11 and 21 up to 690 V ...

Page 163: ...s 4 2 Internal accessories 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 161 1 In combination with manual switching operations but not when motor operators are used ...

Page 164: ...xiliary releases are extremely easy to install No tools are required because these 21 mm wide components are simply snapped into place in the accessory 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 ...

Page 165: ...e is available 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 Release UVR Undervoltage releases trip the molded case circuit breaker in the event that the rated voltage fails or drops to between 70 and 35 of its normal value in compliance with the relevant standard The m...

Page 166: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers with UL and IEC certification 164 Manual 01 2019 L1V30435333 01 Technical specifications of shunt trips and releases ...

Page 167: ...Accessories 4 2 Internal accessories 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 165 ...

Page 168: ...ng The simple time delay device with fixed delay setting is available for the following voltages 230 V AC and 230 V DC 24 V DC The default delay time is 100 ms as supplied but can be extended by the customer with the addition of customer supplied supplementary capacitors As an alternative to screw mounting the device can also be mounted on a 35 mm DIN rail You can find a circuit diagram for the ti...

Page 169: ...s The following advantages arise from the use of the 24 V module Activated display even when the circuit breaker is switched off or no current is flowing through the main circuit Backlighting permanently activated Through activation of the ETUs it is possible to test and change setting parameters ETUs 5 series and 8 series Faster tripping of the 3VA6 molded case circuit breaker on connecting to a ...

Page 170: ...ional safety of electrical installations can be avoided Contents The chapter discusses the following topics General information about cables and busbars 3VA UL molded case circuit breakers with Front cable connection Front busbar connector compression lug connection Rear busbar connector compression lug connection Further connection accessories Note UL connectors 3VA UL connectors are not UL Liste...

Page 171: ...d class 2 B refer to rigid conductors solid and stranded These are used predominantly in applications with low curvature cable bending radii and in fixed or inflexible installations Flexible conductors of class 5 C and class 6 permit higher curvature cable bending radii Solid cables of class 1 solid are normally used only up to a cross section of 16 mm IEC AWG 10 UL Please note Solid conductor cab...

Page 172: ...refully to ensure that the correct amount of insulating material is removed In this way a reliable connection of the cable to the compression lug is ensured A total of 1 mm more insulation can be stripped than is specified by length L Compression lugs compliant with DIN 46235 have ideal heat transfer characteristics for connecting busbar connectors By contrast Tubular compression lugs with narrow ...

Page 173: ...ed in electrical connections especially in panels Some of the reasons for using busbars include High curvature bending radii which are unsuitable for cables of large cross section Lack of space Heat dissipation air circulation Rigid 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 ...

Page 174: ...lded case circuit breakers in compliance with all installation requirements To meet this objective an extensive portfolio of connection components is available Box terminal Wire connector with control wire tap Wire connector Wire connector large with control wire tap Wire connector large Wire connector 2 cables Wire connector 2 cables with control wire tap Distribution wire connector 6 cables Fron...

Page 175: ...ly Terminal cover Rear insulating plate offset 1 Terminal cover extended Phase barriers Terminal cover offset 1 Control wire tap for busbars Rear insulating plate 1 Only available for 3VA63 and 3VA64 The table below lists all the main conductor connection systems available for 3VA UL molded case circuit breakers and also indicates which type of cables or busbars are compatible which each connectio...

Page 176: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification 174 Manual 01 2019 L1V30435333 01 1 Copper terminal available 2 Only available for 3VA63 and 3VA64 ...

Page 177: ...tions for 100 rated line protection copper wire connectors without control wire tap must be used The entire portfolio of connection technology for the 3VA UL molded case circuit breakers can be used without modifications in the following applications On all fixed mounted versions of molded case circuit breaker On all molded case circuit breakers equipped with plug in technology On all molded case ...

Page 178: ... breaker The only exception is the box terminal as this can be used to connect busbars as well as cables Connection technology Cables and busbars Box terminal Solid conductor class 1 Wire connector with control wire tap Stranded conductor class 2 Wire connector Flexible conductors classes 5 and 6 Wire connector large with control wire tap Sector shaped conductor Wire connector large Wire connector...

Page 179: ...case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 177 Box terminal The tables below show all the types and sizes of cable and flexible busbar that can be connected to a box terminal 3VA5 molded case circuit breakers ...

Page 180: ...m 3VA molded case circuit breakers with UL and IEC certification 178 Manual 01 2019 L1V30435333 01 3VA6 molded case circuit breakers 1 Maximum current carrying capacity 380 A Box terminals can be ordered as a pack of 3 as a pack of 4 ...

Page 181: ...variants Both variants are available in aluminum and copper versions Note A maximum current limit of 15 A applies to all control wire taps for 3VA UL molded case circuit breakers Control wire overcurrent protection must be applied separately Suitable cable cross sections Cables up to maximum AWG 12 2 5 mm2 can be connected The wire connector is an internal component i e it is contained within the ...

Page 182: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification 180 Manual 01 2019 L1V30435333 01 3VA5 molded case circuit breakers Aluminum version ...

Page 183: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 181 Copper version ...

Page 184: ... 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification 182 Manual 01 2019 L1V30435333 01 3VA6 molded case circuit breakers Aluminum version 1 Maximum current carrying capacity 400 A ...

Page 185: ...nection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 183 Copper version Wire connector with and without control wire tap can be ordered as a pack of 3 as a pack of 4 ...

Page 186: ...t breakers Control wire overcurrent protection must be applied separately Suitable cable cross sections Cables up to maximum AWG 12 2 5 mm2 can be connected The wire connector 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 as...

Page 187: ...3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 185 Wire connector large with or without control wire tap can be ordered as a pack of 3 as a pack of 4 ...

Page 188: ...UL molded case circuit breakers Control wire overcurrent protection must be applied separately Suitable cable cross sections Cables up to maximum AWG 12 2 5 mm2 can be connected The wire connector 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 con...

Page 189: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 187 Aluminum version ...

Page 190: ...ion system 3VA molded case circuit breakers with UL and IEC certification 188 Manual 01 2019 L1V30435333 01 Copper version Wire connector 2 cables with or without control wire tap can be ordered as a pack of 3 as a pack of 4 ...

Page 191: ...n the terminal can be used to implement a control wire tap For all distribution wire connectors 6 cables the extended terminal cover and the required installation materials are included in the scope of delivery This is used for insulation and provides degree of protection IP4x at the front of the molded case circuit breaker and degree of protection IP2x at the infeed side and load side see chapter...

Page 192: ...on system 3VA molded case circuit breakers with UL and IEC certification 190 Manual 01 2019 L1V30435333 01 3VA6 molded case circuit breakers The distribution wire connector 6 cables can be ordered as a pack of 3 as a pack of 4 ...

Page 193: ...lug connections The diagram below illustrates all the components available for implementing a busbar or compression lug connection on the front panel of the 3VA UL molded case circuit breaker Connection technology Cables and busbars Front bus connectors offset 1 Busbars Front bus connectors extended Compression lugs Nut keeper kit 1 Only available for 3VA63 and 3VA64 ...

Page 194: ...t busbars and compression lugs directly to the terminal of the 3VA UL molded case circuit breaker An auxiliary connection can be implemented using a special control wire tap You can find more detailed information about this in chapter Control wire tap Page 219 The table below provides an overview of the minimum and maximum sizes of cables and busbars which can be connected by a nut keeper kit ...

Page 195: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 193 Nut keeper kits can be ordered as a pack of 3 as a pack of 4 ...

Page 196: ...case circuit breaker The front bus connectors therefore extend the terminal of the breaker You can find information on the required insulation measures in chapter Insulating equipment Page 203 An auxiliary connection can be implemented using a special control wire tap You can find more detailed information about this in chapter Control wire tap Page 219 The table below provides an overview of the ...

Page 197: ...ssories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 195 The front bus connectors extended can be ordered as a pack of 3 as a pack of 4 ...

Page 198: ...us connector offset increases the distance between pole centers 3VA63 and 3VA64 with offset 70 mm 2 76 inch of the terminals of the molded case circuit breaker You can find information on the required insulation measures in chapter Insulating equipment Page 203 An auxiliary connection can be implemented using a special control wire tap You can find more detailed information about this in chapter C...

Page 199: ...ccessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 197 Front bus connectors offset can be ordered as a pack of 3 as a pack of 4 ...

Page 200: ...ting a busbar or compression lug connection on the rear panel of the 3VA UL molded case circuit breaker Connection technology Cables and busbars Rear connection stud round Busbars Rear connection stud flat Compression lugs Rear connection stud round The rear connection stud round enables busbars and compression lugs to be connected to the rear of the 3VA UL molded case circuit breaker The dimensio...

Page 201: ...se circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 199 1 Width across flats of the supplied lock nut 2 Plug in and draw out technology only possible in combination with bus connector offset and associated terminal cover ...

Page 202: ... 1 1 long stud Note In order to achieve degree of protection IP40 terminal covers short version must also be attached when a rear connection stud is installed Rear connection stud flat The rear connection stud flat enables busbars and compression lugs to be connected to the rear of the 3VA UL molded case circuit breaker The rear connection stud flat can be rotated in steps of 45 i e it can be inst...

Page 203: ...on system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 201 1 Plug in and draw out technology only possible in combination with bus connector offset and associated terminal cover ...

Page 204: ...pack of 3 2 short connection studs flat and 1 long connection stud flat as a pack of 4 2 short connection studs flat and 2 long connection studs flat as a pack of 1 1 short connection stud flat as a pack of 1 1 long connection stud flat Note In order to achieve degree of protection IP40 terminal covers short version must also be attached when a rear connection stud is installed ...

Page 205: ...nsulating equipment The connection technology accessories provide a comprehensive range of insulation measures The following overview shows the insulation accessories available for the 3VA UL molded case circuit breakers Terminal cover Terminal cover extended Terminal cover offset 1 Insulating plate Insulating plate offset 1 Phase barriers 1 Only available for 3VA63 and 3VA64 ...

Page 206: ...with the insulating plate and the insulating plate offset in order to provide additional insulation from the mounting plate Phase barriers are compatible with Box terminal Wire connector Front bus connectors extended included in scope of supply Front bus connectors offset included in scope of supply Other insulation accessories Insulating plate or insulating plate offset Depending on the intended ...

Page 207: ...A 79 Protection against electric shock for UL applications are met with IP20 protection All terminal covers have a marking on the inside face which can be drilled through before the cover is installed A voltage detector can be inserted through this hole to test for safe isolation WARNING Reduced degree of barrier protection IP40 is not maintained at the front of the breaker if a hole is drilled th...

Page 208: ...he panel mounting plate Front 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 terminal cover extended is also secured by 2 additional screws to the molded case circuit breaker itself The terminal cover extended is compatible wi...

Page 209: ... screws to the front half of the terminal cover The terminal cover offset is also secured by 2 additional screws to the molded case circuit breaker itself The terminal cover offset is compatible with Front bus connectors offset Insulating plate and insulating plate offset If insulation for the mounting plate is needed this can be ensured by an insulating plate The insulating plate is fitted to the...

Page 210: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification 208 Manual 01 2019 L1V30435333 01 General insulating measures ...

Page 211: ...applications are presented by identification letters in the following tables Note All the presented insulation measures represent minimum requirements Covers can be replaced with more substantial covers Insulating measure A can be replaced with D and E Insulating measure B can be replaced with D and F Insulating measure E can be replaced with D Insulating measure L can be replaced with K ...

Page 212: ... Connection system 3VA molded case circuit breakers with UL and IEC certification 210 Manual 01 2019 L1V30435333 01 Insulating measures for 3VA51 molded case circuit breakers for UL use 1 Not applicable for 3VA51 ED1 ...

Page 213: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 211 Insulating measures for 3VA52 molded case circuit breakers for UL use ...

Page 214: ...3 Connection system 3VA molded case circuit breakers with UL and IEC certification 212 Manual 01 2019 L1V30435333 01 Insulating measures for 3VA61 62 63 64 molded case circuit breakers for UL use 1 For 3VA63 64 only ...

Page 215: ...measures are identified with letters in the tables These letters stand for the following insulation accessories Note All the presented insulation measures represent minimum requirements Covers can be replaced with higher quality covers Insulating measure A can be replaced with D and E Insulating measure B can be replaced with D and F Insulating measure E can be replaced with D Insulating measure L...

Page 216: ... Connection system 3VA molded case circuit breakers with UL and IEC certification 214 Manual 01 2019 L1V30435333 01 Insulating measures for 3VA51 molded case circuit breakers for IEC use 1 Not applicable for 3VA51 ED1 ...

Page 217: ...Accessories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 215 Insulating measures for 3VA52 molded case circuit breakers for IEC use ...

Page 218: ...sories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification 216 Manual 01 2019 L1V30435333 01 Insulating measures for 3VA61 and 3VA62 molded case circuit breakers for IEC use ...

Page 219: ...sories 4 3 Connection system 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 217 Insulating measures for 3VA63 and 3VA64 molded case circuit breakers for IEC use ...

Page 220: ...les and busbars With non insulated cables and busbars and bus connectors extended or bus connectors offset finger safety according to IP2X degree of protection is achieved in IEC applications with terminal covers extended or offset The requirements of NFPA 79 Protection against electric shock for UL applications are met with degree of protection IP20 A basic precondition for this is proper install...

Page 221: ...eaker enables easy implementation of a control wire tap Note A maximum current limit of 15 A applies to all control wire taps for 3VA UL molded case circuit breakers Control wire overcurrent protection must be applied separately The control wire tap must be taken into account when configuring the molded case circuit breaker Suitable cable cross sections Cables up to maximum AWG 14 2 5 mm2 can be c...

Page 222: ...wire tap A ring terminal can be applied using this hole and in some cases a spade plug in connector The required screw is supplied Control wire tap for front busbar connector This control wire tap is installed on the 3VA UL molded case circuit breaker with the busbar to be installed It can also be installed using Front bus connectors extended Front bus connectors offset The following connections c...

Page 223: ...xed and rigid connection to the control panel For certain applications such as for cyclic inspections or service it must be possible to replace the 3VA UL molded case circuit breakers quickly To meet this requirement the molded case circuit breakers can be retrofitted for plug in and draw out technology The main differences between plug in units and draw out units are convenience of operation and ...

Page 224: ...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 whether the breaker is properly connected to the main circuits or is 100 safely isolated from them so that it can be withdrawn Cable connection With plug in and draw out circuit breakers t...

Page 225: ...tall an auto trip plunger in all 3VA UL molded case circuit breakers before inserting into a plug in or draw out base Always turn the circuit breaker OFF before removing from a plug in or draw out base Note the color coding and labels for the autotrip plunger Plug in technology Black labeled Plug in Draw out technology Grey labeled Draw out The autotrip plunger cannot be removed from the circuit b...

Page 226: ... as well as for plug in or draw out technology according to the following table Besides the complete kit for plug in or draw out technology a conversion kit for the 3VA UL molded case circuit breaker alone can be ordered These conversion kits are used to prepare 3VA UL molded case circuit breakers so that completely assembled molded case circuit breakers are available at short notice if a replacem...

Page 227: ...riants The termination area of the incoming and outgoing side of the socket unit is implemented the same as the associated 3VA UL molded case circuit breakers The major benefit of this is that all terminal and connection variants including terminal covers of the 3VA UL molded case circuit breaker can be used with the corresponding plug in or draw out unit without limitation Which connection techno...

Page 228: ...lied with complete kit Supplied 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 supports Fastening bolts with an inch thread are also available Mounting positions The permissible mounting positions are described in Chapter Permissible mounting positions...

Page 229: ... used for example when clear visual evidence of safe electrical isolation of circuits is essential e g when inspection work is in progress Description With a plug in system the molded case circuit breaker is moved into and out of the plug in socket manually WARNING Projectile hazard The molded case circuit breaker can be ejected from its socket by the resulting magnetic forces of a short circuit e...

Page 230: ...er Plug in contacts for attachment to the main terminals of the molded case circuit breaker 3 pole 6 plug in contacts 4 pole 8 plug in contacts Autotrip plunger labeled with Plug in 2 screw mounted terminal covers for the molded case circuit breaker Cable cages see chapter Cable cage Page 255 Size 3VA6 600 3VA944 0KP00 only Bus connectors offset and corresponding terminal covers Note The complete ...

Page 231: ...ed case circuit breaker 3VA UL molded case switch MCS and motor circuit protector MCP For 3 pole version up to 250 A For 4 pole version 2 assembly bolts 4 assembly bolts Plug in contacts for attachment to the main terminals of the 3VA UL molded case circuit breaker 3VA UL molded case circuit breaker Screw mounted terminal covers for the molded case circuit breaker Autotrip plunger ...

Page 232: ...functions in operation When a molded case circuit breaker is converted to a molded case circuit breaker for plug in technology 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 informat...

Page 233: ...on the underside of the molded case circuit breaker using the cable cage and is 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 molde...

Page 234: ...ions For further information please refer to chapter Position signaling switches Page 244 Padlocks for preventing insertion of a molded case circuit breaker The socket unit can be locked with padlocks to prevent unauthorized insertion of a molded case circuit breaker during service calls and inspections Using these locks to prevent insertion and operation of a molded case circuit breaker helps to ...

Page 235: ...t breaker Remote signaling of molded case circuit breaker positions INSERTED The 3VA UL molded case circuit breaker is properly inserted and screwed into place WITHDRAWN Screws have been removed the 3VA UL molded case circuit breaker has been removed Plug in socket can be locked by padlocks to prevent insertion of a molded case circuit breaker IP20 degree of protection this meets NFPA 79 Protectio...

Page 236: ...ar intervals and a visible electrical isolation is required by removal of the circuit breaker which must be implemented quickly In addition draw out units for the 3VA UL molded case circuit breaker range are used when a very fast replacement of molded case circuit breakers or molded case switches is required In the case of draw out technology the 3VA UL molded case circuit breaker is mounted on th...

Page 237: ...the molded case circuit breaker into a defined position NOTICE Irreparable damage to the racking mechanism when rotated in wrong direction The following operations will lead to irreparable damage of the draw out socket gear Molded case circuit breaker is in DISCONNECT position Insertion of the crank handle position indicator changes to UNBLOCK and counterclockwise turning of the crank handle towar...

Page 238: ...safety lock slide underneath the breaker status indication downwards as indicated by the arrow 3 Remove the molded case circuit breaker Components of a complete kit for draw out technology A complete kit for draw out technology contains all the components for conversion of a fixed mounted molded case circuit breaker type to a draw out technology type Draw out socket including side walls with the m...

Page 239: ...ker 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 labeled with Draw out 2 screw mounted terminal covers for the molded case circuit breaker Plug in contacts for attachment to the main terminals of the molded case circuit breaker Side walls with guide bolts for mounting on the molded case circuit brea...

Page 240: ...e two terminal covers are intended for the molded case circuit breaker If terminal covers are to be attached to the busbars of the draw out socket they must be ordered separately see chapter Insulating equipment Page 203 Autotrip plunger An autotrip plunger is supplied as standard with every complete kit and every conversion kit for converting a molded case circuit breaker to draw out technology W...

Page 241: ...ernal accessories Page 152 To ensure that the electrical connections required by draw out units can be quickly and safely disconnected auxiliary circuit connectors can be installed The part of the auxiliary circuit connectors on the circuit breaker side is mounted on the underside of the molded case circuit breaker using the cable cage and is electrically connected to the internal accessories Appr...

Page 242: ...socket is not in one of the positions specified above For information please refer to chapter Position signaling switches Page 244 Protection against unauthorized operation of molded case circuit breaker Padlocks for protection against unauthorized operation To provide protection against unauthorized operation of the molded case circuit breaker padlocks can be inserted through the plastic frame op...

Page 243: ...k can be retrofitted in the right hand side wall of the draw out socket Like with the padlocks it can be used to lock a molded case circuit breaker in the CONNECT TEST and DISCON positions The cylinder lock utilizes the locking mechanism of the plastic frame This is evident from the way the plastic frame moves into or out of the socket as the cylinder lock is turned Signaling of locked unlocked st...

Page 244: ...KC00 This kit allows the position of the molded case circuit breaker in the draw out unit to be picked up and transferred to the COM060 communication module and from there to the higher level communication network For further information about the communication kit for draw out units please refer to chapter Communications interface for draw out unit Page 249 Operation through the panel door The mo...

Page 245: ...nel Since mounting dimensions may vary slightly however these markings should be regarded as a rough guide only The crank handle mechanism provides the user with feedback information about the molded case circuit breaker position e g whether it has been correctly inserted Benefits of draw out technology Defective molded case circuit breakers can be replaced quickly and easily Clear visual evidence...

Page 246: ...ing switches 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 thr...

Page 247: ...e position signaling switch is inserted in slot a or b Only one position signaling switch per position is usually installed The remaining free slots can be used for the signaling switches of the communication link kit Alternatively another position signaling switch can also be inserted however If the molded case circuit breaker in the draw out unit is moved into a defined position with the crank h...

Page 248: ...2019 L1V30435333 01 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 position signaling switch for signal Draw out unit locked open Plastic frame for padlock locking unit ...

Page 249: ...s or a cylinder 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 ...

Page 250: ...tion signaling switch 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 screw The reason for ...

Page 251: ...de 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 remaining slots are normally used to install standard position signaling switches 2 Remove the seal over the o...

Page 252: ...s 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 design of auxiliary circuit connector than draw out units The number of auxiliary circuit connectors required depends on the accessories to be installed in the molded case circuit breaker and ultimately on the number of electri...

Page 253: ...e 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 positioning tongues of the breaker end half of the auxiliary circuit connectors latch into small recesses in the cable cages which are sc...

Page 254: ...g hook socket end Latching element socket end The socket end half of the auxiliary circuit connectors is simply snapped into the socket Various cable routing openings and ducts are provided in the socket and the molded case circuit breaker For further details please refer to the operating instructions for the complete kits for plug in or draw out technology See also Cable cage Page 255 ...

Page 255: ... operation of a molded case circuit breaker even when the panel door is closed the draw out version of a molded case circuit breaker to be electrically isolated from or connected to the installation while the panel door is closed prevention of access to live components inside the panel Door feedthroughs are mounted over the front of the molded case circuit breaker and securely attached to the brea...

Page 256: ...vers are included in the scope of supply of 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 bolted to the contact unit These terminal covers can be o...

Page 257: ...le cages please refer to chapter Auxiliary circuit connector Page 250 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...

Page 258: ... L1V30435333 01 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 1 This meets NFPA 79 Protection against electric shock requirements 1 This meets NFPA 79 Protection against electric shock requirements ...

Page 259: ...ion module A molded case circuit breaker which requires a communication link 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 circuit breaker ne...

Page 260: ...ors are available for the 3VA UL molded case circuit breaker Front mounted rotary operator optionally with door interlock and door open function Illumination kit Door mounted rotary operator Fixing bracket for long shafts Variable depth adapter for draw out units Supplementary handle for door mounted rotary operator Illumination kit Side wall mounted rotary operator Illumination kit Operator kit w...

Page 261: ...2 Operator control of the 3VA UL molded case circuit breakers with manual operators Opening and closing To close the 3VA UL molded case circuit breaker Turn the manual operator to the ON I position Front mounted rotary operator door mounted rotary operator side wall mounted rotary operator Handle of the operator kit with Bowden cable ...

Page 262: ...C certification 260 Manual 01 2019 L1V30435333 01 To open the 3VA UL molded case circuit breaker Turn the manual operator to the OFF O position Front mounted rotary operator door mounted rotary operator side wall mounted rotary operator Handle of the operator kit with Bowden cable ...

Page 263: ...setting the manual operator after the molded case circuit breaker has tripped When the molded case circuit breaker trips the manual operator moves automatically from the ON I to the TRIP position Front mounted rotary operator door mounted rotary operator side wall mounted rotary operator Handle of the operator kit with Bowden cable ...

Page 264: ...r 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 RESET position just beyond OFF O Pull the Max Flex operator downwards as far as it will go The manual operator remains in the OFF O position Front mounted rotary operator door mounted rotary operator side wall mounted rotary operator Handle of the operator kit w...

Page 265: ... certification Manual 01 2019 L1V30435333 01 263 3 Turn the manual operator to the ON I position Front mounted rotary operator door mounted rotary operator side wall mounted rotary operator Handle of the operator kit with Bowden cable The molded case circuit breaker is closed again ...

Page 266: ...n two versions With door interlock Without door interlock Front mounted rotary operator with door interlock Indication of the breaker status on off trip see below Front mounted rotary operator without door interlock Handle with mechanism for up to 3 padlocks Locking mechanism for up to 3 padlocks Manual trip button PUSH TO TRIP Door interlocking elements door position switch defeat function interl...

Page 267: ...tary operator with door interlock The front mounted rotary operator with door interlock projects through the panel door This arrangement ensures that the molded case circuit breaker can be switched on only when the panel door is closed The door is locked automatically when the front mounted rotary operator is turned to position ON I For front mounted rotary operators with door open function this f...

Page 268: ...NC contact of the panel door and open the panel door 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 1 Door position switch 2 Door interlock 3 Defeat function Procedure overriding the door interlock Use a slotted screwdriver 0 3 x 2 ...

Page 269: ...ront 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 RESET position just beyond OFF O The...

Page 270: ...le with up to three padlocks with a diameter of 3 16 to 5 16 5 mm to 8 mm Padlocks are not included in the scope of supply Lockable positions Position OFF O Position ON I Possible only if the front mounted rotary operator has been modified according to the operating instructions Note No impairment of protection function Locking the rotary operators in the ON I position does not impair the protecti...

Page 271: ... three padlocks with a diameter of 3 16 5 16 5 8 mm and with a cylinder lock type Ronis Interlocking is only possible with a cylinder lock type Ronis Padlocks and cylinder locks are not included in the scope of supply of manual rotary operators Locking with padlocks All rotary operators have a mechanism for padlocks This can be pulled out from the rotary operator Example of rotary operator with sh...

Page 272: ...h cylinder lock type Ronis Through use of the cylinder lock insert for interlocking any number of rotary operators can be mutually interlocked This requires that the keys of all opened and locked molded case circuit breakers be removed and securely stored 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 in the ON I position T...

Page 273: ...alled it is possible to operate the molded case circuit breaker through the panel door without opening the door Door mounted rotary operator Position for a cylinder lock Indication of the breaker status ON TRIP mounting position OFF RESET For mounting position see chapter Front mounted rotary operator Page 264 Door open function Door Open optional Handle with mechanism for up to 3 padlocks Toleran...

Page 274: ...otary operator Door interlock with door mounted rotary operator In the case of door mounted rotary operators with door interlock the door is interlocked as soon as the switch is in ON I position In the case of door mounted rotary operators with door open function the door is interlocked starting from the closing of the door OFF 0 Opening panel door with door open function ...

Page 275: ... so that maintenance can be carried out for example Procedure overriding the door interlock Use a slotted screwdriver 0 3 x 2 0 mm to press into the opening for the defeat function of the door interlock and simultaneously open the door Deactivation of the door interlock function The door interlock can be completely deactivated by a small modification on the inside of the handle The panel door can ...

Page 276: ...333 01 4 5 4 3 Tolerance compensator Tolerance compensator Door mounted rotary operators are supplied as standard with a tolerance compensator This tolerance compensator compensates for a possible small misalignment between the handle in the panel door and the shaft of the door mounted rotary operator Tolerance compensator ...

Page 277: ...e molded case circuit breaker Alternatively you can use the supplementary handle for the door mounted rotary operator to close the molded case circuit breaker see Supplementary handle for door mounted rotary operator Page 276 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 i...

Page 278: ...ons requiring NFPA 79 compliant door mounted rotary operators The supplementary handle is not included in the scope of delivery of the door mounted rotary operator and must be ordered separately Use the supplementary handle to close the molded case circuit breaker In accordance with NFPA 79 a deliberate action is required to reach the ON I position 1 Push in the supplementary handle 2 Turn the sup...

Page 279: ... Variable depth adapter Variable depth adapter The variable depth adapter enables adjustment of the travel distance CONNECT TEST and DISCONNECT when using draw out technology As a result the panel door does not have to be opened to move the switch to the CONNECT TEST and DISCONNECT positions See also chapter Draw out technology Page 234 ...

Page 280: ...locks are not included in the scope of supply Lockable positions Position OFF O Locking the door mounted rotary operator in OFF O position prevents the molded case circuit breaker from being switched on and the panel door from being opened The door interlock cannot be overridden Position ON I Possible only if the front mounted rotary operator has been modified according to the operating instructio...

Page 281: ...rdered separately Locking blocking and interlocking at the rotary operator Locking at the rotary operator is possible with up to three padlocks with a diameter of 3 16 5 16 5 8 mm and with a cylinder lock type Ronis Interlocking is only possible with cylinder locks type Ronis In addition the door mounted rotary drive can be locked at the masking plate in the panel door additionally with cylinder l...

Page 282: ... OFF O position Mutual interlocking with cylinder lock type Ronis Through use of the cylinder lock insert for interlocking any number of rotary operators can be mutually interlocked This requires that the keys of all opened and locked molded case circuit breakers be removed and securely stored Only the key of the rotary operator which is in the ON I position is left in the cylinder lock This key c...

Page 283: ... rotary operator allows the molded case circuit breaker to be operated through the right hand or left hand side wall of the panel Side wall mounted rotary operator Handle with mechanism for up to 3 padlocks Side wall of panel Device for up to 3 padlocks Device for cylinder lock Trip unit button PUSH TO TRIP Indication of the breaker status ON TRIP mounting position OFF RESET For mounting position ...

Page 284: ... with mounting plate The side wall mounted rotary 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...

Page 285: ...r of 3 16 to 5 16 5 mm to 8 mm Padlocks are not included in the scope of supply Lockable positions Position OFF O Locking the side wall mounted rotary operator in the OFF O position prevents the molded case circuit breaker from being closed Position ON I Possible only if the side wall mounted rotary operator has been modified according to the operating instructions Note No impairment of protection...

Page 286: ...dered separately Locking blocking and interlocking at the rotary operator Locking at the rotary operator is possible with up to three padlocks with a diameter of 3 16 5 16 5 8 mm and with a cylinder lock type Ronis Interlocking is only possible with cylinder locks type Ronis In addition the side wall mounted rotary drive can be locked at the masking plate of the side wall additionally with cylinde...

Page 287: ...s the rotary operators in the OFF O position Mutual interlocking with cylinder lock type Ronis Through use of the cylinder lock insert for interlocking any number of rotary operators can be mutually interlocked This requires that the keys of all opened and locked molded case circuit breakers be removed and securely stored Only the key of the rotary operator which is in the ON I position is left in...

Page 288: ...ator 4 5 6 1 Elements of the operator kit with Bowden cable The Max Flex operator is installed for switching a 3VA UL molded case circuit breaker using a handle and Bowden cable through the panel door The switching mechanism and handle are connected to one another with a flexible Bowden cable Handle Bowden cable Switching mechanism A variety of Bowden cable lengths are available ...

Page 289: ...ator kit with Bowden cable interlocks the panel door as soon as the handle is in position ON I Defeat function of the door interlock In order to open the panel door even when the molded case circuit breaker is closed the door interlock can be defeated This is done using the screw on the side of the handle Procedure 1 Use a screwdriver to turn the screw clockwise by 90 2 Keep the screw turned while...

Page 290: ...01 Switching on the molded case circuit breaker when panel door is open When the panel door is open the 3VA UL molded case circuit breaker can be switched using the Max Flex operator with a deliberate action only Procedure 1 Press interlock pin upward 2 Keep interlock pin pressed while the molded case circuit breaker is closed ...

Page 291: ...e ON I position using the handle 5 Press the PUSH TO TRIP button with a tool such as a screwdriver The Max Flex operator moves from the ON I position to the TRIP position The molded case circuit breaker is now in the tripped state 6 Move the handle for resetting the molded case circuit breaker to the OFF O position 7 Close the panel door The molded case circuit breaker can now be closed again 4 5 ...

Page 292: ...35333 01 4 5 6 5 Locking blocking and interlocking Lockable positions Position OFF O Locking the handle of the operator kit with Bowden cable in the OFF O position prevents the molded case circuit breaker from being closed Position ON I The handle of the operator kit with Bowden cable can not be locked in the ON position ...

Page 293: ...of protection IP30 Note To ensure that the panel 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 4 5 7 2 NEMA degree of protection All 3VA UL rotary operators are designed in such a way that the NEMA degrees of protection 1 12 3R and 4 or 4X for enclosures can be met The handle of the operator kit with Bowde...

Page 294: ...kit illuminates the indication of the breaker status of the front mounted rotary operator or the door mounted rotary operator or the masking plate of the door mounted or side wall mounted rotary operator 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 i...

Page 295: ...reaker 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 Handle for manual operation Characteristic data of the molded case circuit breaker Connecting terminals for power supply AC DC depending on version LED TRIP Seal Indication of the ...

Page 296: ...ication of the breaker status and an LED labeled TRIP The indication directly reflects the status of the actuating shaft With its clear breaker status indication the motor operator MO320 meets the requirements pertaining to isolating features stipulated by IEC EN 60947 1 Indication of the breaker status on the front panel LED status displays See also chapter Faults causes of faults and rectificati...

Page 297: ...tor operator MO320 is in MANUAL mode The motor operator is moved to position ON I or OFF O by manual operation 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 p...

Page 298: ...NUAL 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 Closing the 3VA UL molded case circuit breaker Turn the handle clockwise until the breaker status indication indicates ON I The molded case circuit breaker is now closed ON I The main contacts are closed Opening the 3VA UL molded cas...

Page 299: ...ical signals Close the 3VA UL molded case circuit breaker with an electrical ON signal at the terminal block The molded case circuit breaker is closed ON I The main contacts are closed The indicator on the front panel of the motor operator indicates ON I Open the 3VA UL molded case circuit breaker with an electrical OFF signal at the terminal block The molded case circuit breaker is opened OFF O T...

Page 300: ...lights up Reset mode setting The resetting of the 3VA UL molded case circuit breaker 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 Response of the motor operator to tripping of the 3VA UL molded case circu...

Page 301: ...grams see chapter Circuit diagrams Page 385 The motor operator MO320 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 si...

Page 302: ...Accessories 4 6 Motor operator 3VA molded case circuit breakers with UL and IEC certification 300 Manual 01 2019 L1V30435333 01 4 6 5 Faults causes of faults and rectification of faults ...

Page 303: ...Accessories 4 6 Motor operator 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 301 4 6 6 Technical specifications Motor operator MO320 ...

Page 304: ...the 3VA UL molded case circuit breaker in the OFF O position 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 the 3VA UL molded case circuit breaker from being closed the position OFF O can be secured with a padlock device As a result of this locking the 3VA UL molded case circuit bre...

Page 305: ... in the ON position again The TRIP function and thus the protection function of the 3VA UL molded case circuit breaker is not impaired by locking in the ON I position In the event of a fault the 3VA UL molded case circuit breaker trips in the normal way 4 7 1 3 Interlocking Two or more 3VA UL molded case circuit breakers can be mutually interlocked with the padlock devices The padlock device relea...

Page 306: ...owing interlocking options Front interlock Rear interlock Front interlock All front interlocks are installed on the front panel of the 3VA UL 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 accessory compartments Rear interlock The rear interlock do...

Page 307: ...lded case circuit breaker 4 7 2 1 Handle blocking device The handle blocking device is attached directly to the handle of the 3VA UL molded case circuit breaker to be locked and latched in place Note You can find information on installation in the operating instructions Handle blocking device https support industry siemens com cs ww en view 109742929 With the help of the handle blocking device the...

Page 308: ...nts accidental locking of the breaker in the ON position Metal pin Installation of other accessories The installed handle blocking device partly excludes the installation of other accessory components e g front mounted accessories such as manual and motor operators as well as front interlocks In addition the handle blocking device must be removed to gain access to the accessory compartment for the...

Page 309: ...uation Locking with cylinder locks type Ronis is possible on all 3VA UL molded case circuit breakers The cylinder lock is installed in an accessory compartment of the 3VA UL molded case circuit breaker To provide a cylinder lock the following 2 components need to be ordered One cylinder lock type Ronis 1 lock and 2 keys are always included in the order Selection of the lock number is highly flexib...

Page 310: ...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 interlocking for interlocking applications Slide for locking in the OFF position Slide for locking in the ON position Cylinder lock housing for locking Cylinder lock housing for interlocking ...

Page 311: ... Actuating lever Cylinder lock type Ronis Accessory cover 1 Remove the accessory cover from the 3VA UL molded case circuit breaker 2 From the rear of the lid of the accessory cover drill a hole through the lid at the position designated for the cylinder lock housing and remove burrs with a file In addition introduce as precise a gap as possible for anti rotation protection of the cylinder lock hou...

Page 312: ... Ronis for other applications Cylinder locks type Ronis can also be used in the following applications For locking the travel of draw out technology see chapter Draw out technology Page 234 For locking in the manual operators of the 3VA UL molded case circuit breaker see chapter Manual operators Page 258 Installation of other accessories The installation of the cylinder lock in the accessory compa...

Page 313: ... locks type Ronis in the accessory compartments molded case circuit breakers cannot only be locked see chapter Cylinder locks for locking the 3VA molded case circuit breaker Page 307 but it is also possible to mutually interlock any number of 3VA UL molded case circuit breakers This ensures that only one 3VA UL molded case circuit breaker at a time in the interlock application can be in position O...

Page 314: ...ncludes the adapter 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 If for example three 3VA UL molded case circuit breakers are to be interlocked three cylinder locks type Ronis with the same lock number and 3 adapter kits suitable for the respective...

Page 315: ...uit breaker 2 From the rear of the lid of the accessory cover drill a hole through the lid at the position designated for the cylinder lock housing and remove burrs with a file In addition introduce as precise a gap as possible for anti rotation protection of the cylinder lock housing 3 Insert a cylinder lock type Ronis and the locking version of the cylinder lock housing in the drilled hole and c...

Page 316: ...a safe place or lock them away In order to ensure reliable functioning 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 Bring all 3VA UL molded case circuit breakers of the interlock arrangement to the OFF position and lock them cylinder lock in vertica...

Page 317: ...rrently released molded case circuit breaker to the OFF O position 2 Turn the cylinder lock to the vertical locked position and remove the key The 3VA UL molded case circuit breaker released up to then is now securely locked in the OFF O position and cannot be actuated 3 Use the removed key to turn the cylinder lock of the 3VA UL molded case circuit breaker to be newly released to the horizontal u...

Page 318: ...L molded case circuit breakers Page 152 4 7 3 2 Cable interlock module using a Bowden cable A mutual interlock between up to three molded case circuit breakers can be implemented by means of the front Bowden cable interlock module 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...

Page 319: ...reaker at any one time This ensures that only one 3VA UL molded case circuit breaker at a time can be actuated and only one molded case circuit breaker can be in the ON I position 3VA5 125 molded case circuit breaker blocked by slide 3VA6 250 molded case circuit breaker released by slide Note For installation instructions please refer to operating instructions Sliding bar modules Bowden cable leng...

Page 320: ...reakers the following handle positions are possible When a sliding bar using a Bowden cable is installed for three 3VA UL molded case circuit breakers the following handle positions are possible Installation of other accessories The installation of the front sliding bar with Bowden cable partly excludes the installation of other accessory components e g front mounted accessories such as manual and...

Page 321: ...r 2 Attach the locking slide securely to the two side plates Locking the handle The handle of the 3VA UL molded case circuit breaker to be interlocked is blocked by sliding the locking slide Up to three commercially available padlocks shackle diameter 1 4 to 5 16 6 mm to 8 mm can be fitted to lock the slide in position and prevent operation of the blocked handle The blocked 3VA UL molded case circ...

Page 322: ...2 side plates 1 locking slide Interlock combinations The following interlock combinations can be implemented with the sliding bar Interlocks can be implemented between the same rated current versions of molded case circuit breakers 3VA5 125 A with 3VA5 125 A 3VA5 250 A with 3VA5 250 A and 3VA6 150 250 A 3VA6 150 250 A with 3VA5 250 A and 3VA6 150 250 A 3VA6 400 600 A with 3VA6 400 600 A All 3 pole...

Page 323: ... front interlock must be removed to gain access to the accessory compartment for the internal accessories 4 7 4 Rear interlock Rear interlock The rear interlock allows an an interlock of two 3VA UL molded case circuit breakers without restricting the installation of accessories on the front panel of the molded case circuit breaker The rear interlock operates according to the following principle Wh...

Page 324: ...ng modules Molded case circuit breaker 2 Panel mounting plate Mounting accessories Interlocking rod Note You can find installation information in the operating instructions of the rear interlock https support industry siemens com cs ww en view 109742930 Scope of delivery The order number includes the following items Two interlocking modules Mounting accessories Interlocking rod ...

Page 325: ...e following interlock combinations are possible All 3VA5 and 3VA6 molded case circuit breakers can be interlocked All sizes up to 600 A can be interlocked All 3 pole and 4 pole molded case circuit breakers can be interlocked Handle positions When a rear interlock is installed for two 3VA UL molded case circuit breakers the following handle positions are possible ...

Page 326: ...35333 01 Assembling aid to facilitate installation of rear interlock An assembling aid is available for all 3VA UL molded case circuit breakers It facilitates installation of the rear interlock and reduces the amount of work required to the panel mounting plate Mounting plates specific to molded case circuit breaker Profile rail ...

Page 327: ... No further work to the panel mounting plate is required The same rear interlock combinations can be implemented regardless of whether or not the assembling aid is used Rear interlock for plug in and draw out units In order to use a rear interlock for plug in or draw out versions of the molded case circuit breakers the tappet needs to be lengthened The tappet extension transfers the interlocking m...

Page 328: ...as a complete kit containing all the required components Two interlocking modules Mounting accessories Interlocking rod All the required tappet extensions Interlock combinations The same rear interlock combinations can be implemented for plug in and draw out versions as for fixed mounted versions Note The draw out technology cannot be installed together with the mounting plates and the profile rai...

Page 329: ...rcuit breakers To make use of all these functions a COM060 communication module must be installed in the respective 3VA UL molded case circuit breaker and connected to a COM800 breaker data server for up to eight 3VA UL molded case circuit breakers or a COM100 breaker data server for a single 3VA UL molded case circuit breaker You can find detailed information on the communication module and break...

Page 330: ...itecture of 3VA UL communication The central components of communication capable 3VA UL molded case circuit breakers are the ETUs 5 series and 8 series You can find additional information in the 3VA Communication System Manual Page 11 There the components are regarded only as suppliers of information or receivers of commands Typical communication partners are SIMATIC S7 powermanager These are name...

Page 331: ...C Switched Ethernet PROFINET expansion module to PROFINET IO and PROFIenergy as well as Modbus TCP 7KM PAC RS 485 expansion module for Modbus RTU The 3VA UL molded case circuit breakers are typically integrated in the power monitoring software powermanager or the TIA Totally Integrated Automation automation concept via a communication network The 3VA UL molded case circuit breakers can also be con...

Page 332: ...levant circuit breaker 7KM PAC expansion modules T connector From a UL Class 2 24 V DC power supply the COM800 COM100 breaker data server supplies power to all the 3VA UL molded case circuit breakers involved and the following components COM060 communication module ETUs 5 series and 8 series Position signaling switch for draw out socket 7KM PAC PROFIBUS DP expansion module 7KM PAC Switched Etherne...

Page 333: ...and 8 series Minimum and maximum values of measured variables Limit value monitoring for measured variables in the 3VA UL molded case circuit breakers Load curves with power demands e g 15 minute demands Energy values such as active energy kWh and reactive energy kvarh Power supply to connected 3VA UL molded case circuit breakers Three simultaneous communication connections via the integrated Ethe...

Page 334: ...er 4 8 5 DSP800 display The DSP800 display is designed for mounting in the panel door and can be optionally connected to the Ethernet Modbus TCP interface integrated in the COM800 COM100 breaker data server The DSP800 display shows the data of the breaker data server and thus the data of up to eight connected 3VA6 molded case circuit breakers The start page of the DSP800 displays the status and ma...

Page 335: ...sioning of 3VA UL Statistical analysis of 3VA UL Readout of measured variables such as energy current voltage and power from the 3VA UL molded case circuit breakers Readout of minimum and maximum values from 3VA UL molded case circuit breakers Diagnostics of 3VA UL The PC on which powerconfig runs is connected to the 3VA UL molded case circuit breaker by means of the COM800 COM100 breaker data ser...

Page 336: ...oject if they have a technical organizational or other connection Electronic trip units ETU 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 repo...

Page 337: ...333 01 335 powerconfig supports a variety of different device communication links depending on the SENTRON device used USB Ethernet Modbus TCP PROFINET PROFIBUS MODBUS RTU 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 11 ...

Page 338: ...ed case circuit breakers with UL and IEC certification 336 Manual 01 2019 L1V30435333 01 With 3VA6 molded case circuit breakers and ETUs 3 series powerconfig is linked to the ETU interface via the USB interface on the PC and the interface on the TD500 test device ...

Page 339: ...wer 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 Rheinland for its suitability ...

Page 340: ...external function box receives information from the ETU via a cable connection This information warnings reason for last trip energy meter can be output via the four digital outputs Zone selective interlocking functionality ZSI see chapter Zone Selective Interlocking Page 76 can also be implemented via the EFB300 The EFB300 also supplies the ETU with power which means that the ETU can be parameter...

Page 341: ...ink to the communication system The following signals dependent on the ETU can be assigned All reasons for ETU tripping L S I N and G 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 disconnected before the main voltage ceases as a result of the trip Load shedding load pick up By means of the load shed...

Page 342: ... 01 Overview of functions available with EFB300 external function box 4 9 4 Zone selective interlocking ZSI Description The microprocessor controlled zone selective interlocking function ZSI has been developed in order to control the total breaking time in low voltage networks with multiple molded case circuit breakers connected in series ...

Page 343: ... in the case of system short circuits of very large magnitude Note Backward compatibility The ZSI function is compatible with the ZSI function of the 3VL and 3WL molded case circuit breakers Connection Use of the ZSI function is conditional upon the connection of a dedicated EFB300 external function box to each 3VA6 molded case circuit breaker The EFB300 allows molded case circuit breakers to comm...

Page 344: ...test function 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...

Page 345: ...ox 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 343 LED states in operating mode Steady illumination Flashing Off Simultaneous flashing of all LEDs indicates that the EFB300 is defective Flashing ...

Page 346: ...ermine whether 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 ...

Page 347: ...01 2019 L1V30435333 01 345 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 ...

Page 348: ...the SET button 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 ...

Page 349: ...7 Terminating 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 ...

Page 350: ...Accessories 4 9 EFB300 external function box 3VA molded case circuit breakers with UL and IEC certification 348 Manual 01 2019 L1V30435333 01 LED states in test mode Steady illumination Flashing Off ...

Page 351: ...Accessories 4 9 EFB300 external function box 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 349 4 9 6 Technical specifications ...

Page 352: ...Accessories 4 9 EFB300 external function box 3VA molded case circuit breakers with UL and IEC certification 350 Manual 01 2019 L1V30435333 01 ...

Page 353: ...rameters for the instantaneous short circuit current Ii and the ground fault current Ig are set to the lowest setting values of the circuit breaker This reduces the let through energy of the molded case circuit breaker under fault conditions This results in improved protection when personnel is in the vicinity of the installation and the installation is in maintenance mode This parameter changeove...

Page 354: ...VA molded case circuit breakers with UL and IEC certification 352 Manual 01 2019 L1V30435333 01 LED states of the MMB300 maintenance mode box Steady illumination Flashing Off Simultaneous flashing of all LEDs indicates that the MMB300 is defective ...

Page 355: ...kers with UL and IEC certification Manual 01 2019 L1V30435333 01 353 4 10 2 Configuration of MMB300 with a 3VA6 molded case circuit breaker The possible configuration of the MMB300 maintenance mode box with the associated molded case circuit breaker is shown in the following ...

Page 356: ...01 Alternatively up to eight 3VA6 molded case circuit breakers can be connected in series with an MMB300 maintenance mode box This ensures that the external status display only signals that maintenance mode is activated when all series connected molded case circuit breakers are in DAS mode It is also possible to combine the power supplies ...

Page 357: ... 2019 L1V30435333 01 355 LED states for the 3VA6 molded case circuit breaker and MMB300 maintenance mode box in different applications The LED states shown in the following tables relate to the circuit diagram of the multiple series connected 3VA6 molded case circuit breakers see above Steady illumination Flashing Off ...

Page 358: ...VA molded case circuit breakers with UL and IEC certification 356 Manual 01 2019 L1V30435333 01 Steady illumination Flashing Off If the external status display is On this guarantees that all 3VA6 molded case circuit breakers are in maintenance mode ...

Page 359: ...B300 maintenance mode box functions exactly like on the EFB300 external function box The SET button can be used to activate test mode of the MMB300 maintenance mode box This means that the MAINT Out and DO1 outputs can be manually activated or deactivated This allows you to check whether the outputs are functioning correctly and the wiring is correct Steady illumination Flashing Off ...

Page 360: ...L1V30435333 01 4 10 4 Power supply The MMB300 maintenance mode box requires a UL Class 2 24 V DC power supply and also serves as the power supply for the connected ETUs This allows the ETU to remain operational even after the 3VA6 molded case circuit breaker has tripped or is in the Off position 4 10 5 Technical specifications ...

Page 361: ...Accessories 4 10 MMB300 maintenance mode box 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 359 ...

Page 362: ...ces 4 11 1 Introduction Test devices are required in order to perform local tests of the 3VA6 molded case circuit breakers 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 ...

Page 363: ...molded case circuit breaker 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 has a compact size of 3 x 4 21 x 1 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 TR...

Page 364: ...he power 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 ...

Page 365: ...eaker ON position 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 cir...

Page 366: ...tions The TD500 mobile test device can be used to test the different causes of ETU trips This enables testing of the functioning and wiring of all connected system components before the 3VA6 molded case circuit breaker is commissioned The system behaves as it would in the case of a real trip event The molded case circuit breaker trips when the set delay times expire and signals all alarms and trip...

Page 367: ...llation via powerconfig The device can store up to 100 test results With the TD500 test device and the powerconfig software all diagnostic data of the 3VA6 molded case circuit breaker can be archived electronically or as a printed document In addition test functions can be performed directly on the PC with the powerconfig software Description of the TD500 Plug in connector for insertion in the tes...

Page 368: ...for neutral trip test N Pushbutton for ground fault trip test G Pushbutton for meter test current measurement display PC connection Mains cable connection Pushbutton for transformer test Pushbutton for instantaneous short circuit trip test I Pushbutton for short time delayed short circuit test S Pushbutton for overload trip test L Pushbutton for ETU Power ON OFF LED ACT status LED COM communicatio...

Page 369: ...s of the TD500 test device Top of unit Connection to 3VA UL molded case circuit breaker Bottom of unit on right 24 V DC supply Bottom of unit on left Connection to PC Compatibility with molded case circuit breakers The TD500 test device can be connected to all 3VA6 molded case circuit breakers with the ETUs 3 series 5 series and 8 series The connecting cable from the test device is inserted in the...

Page 370: ...ta 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 circuit breaker is tripped electronically when the pushbutton is actuated This is essential to allow effectual testing ...

Page 371: ...rcuit breaker 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 a...

Page 372: ... case circuit 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 illum...

Page 373: ...0 test device 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 conta...

Page 374: ...onds 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 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 Support Page 10 5 Press the pushbutt...

Page 375: ...e 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 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...

Page 376: ...molded case circuit 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 USB connecting cable PC with powerconfig installed TD500 to ETU connecting cable TD500 test device 4 11 3 4 Parameterizing using the powerconfig software In addition to test fu...

Page 377: ...Accessories 4 11 Test devices 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 375 4 11 3 5 Technical specifications ...

Page 378: ... breakers with ETUs 5 series and 8 series It is used when 3 pole circuit breakers are to be used in 4 wire systems but monitoring of the N conductor is still desired The N conductor is thereby protected against short circuit and overload Available external current transformers for N conductor N Neutral conductor protection 1 With rated current In 40 A IN 40 100 In 2 With rated current In 100 A IN ...

Page 379: ...Accessories 4 12 External current transformer for N conductor 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 377 Technical specifications ...

Page 380: ... 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 few millimeters between the cutout and the unit Door cover frames are used when the gap is to be covered and and as small as possible With cover frames you achieve ...

Page 381: ...he range 0 24 6 mm in the vertical direction On the one hand this tolerance compensation is required to achieve the small gap dimension of max 0 19 0 5 mm between the cover frame and device On the other hand it is needed to compensate for tolerances for example in the panel which are always present due to the construction Typical tolerance compensation examples are Tolerance compensation of the do...

Page 382: ...supplementary labeling plate 3VA9077 0SX10 is available for the cover frames It can be latched in position in the center of any of the four sides of the cover frame 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 ...

Page 383: ...ation when setting up and operating the relevant equipment system The equipment system may only be serviced and maintained by qualified personnel For the purpose of the safety information in these operating instructions a qualified person is someone who is authorized to energize ground and tag equipment systems and circuits in accordance with established safety procedures Maintenance category ...

Page 384: ...r In addition an inspection should be carried out after 1000 cycles at rated operational current If the molded case circuit breaker or molded case switch MCS is operated in a dusty environment or an environment with corrosive vapors gases or salt spray it is recommended that the inspection intervals be adjusted e g to twice per year Recommended inspection of the 3VA UL molded case circuit breaker ...

Page 385: ...cuit breaker may be switched on again In the case of 3VA6 molded case circuit breakers the cause of the trip 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 inspection as described in chapter Regular maintenance Page 382 should be...

Page 386: ...Service and maintenance 5 4 Fault diagnostics 3VA molded case circuit breakers with UL and IEC certification 384 Manual 01 2019 L1V30435333 01 5 4 Fault diagnostics See also Technical Support Page 10 ...

Page 387: ... IEC certification Manual 01 2019 L1V30435333 01 385 Technical specifications 6 6 1 Circuit diagrams 6 1 1 3VA5 molded case circuit breakers 6 1 1 1 Basic units Molded case switch motor circuit protector Fixed mounting Plug in draw out technology ...

Page 388: ...ifications 6 1 Circuit diagrams 3VA molded case circuit breakers with UL and IEC certification 386 Manual 01 2019 L1V30435333 01 3VA5 molded case circuit breakers with thermal magnetic trip unit Fixed mounted 3 pole ...

Page 389: ...xiliary 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 Auxiliary releases Undervoltage release UVR Universal release UNI Shunt trip ...

Page 390: ...3 01 Motor operators 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 ...

Page 391: ...2 Indicator light 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 conta...

Page 392: ...cifications 6 1 Circuit diagrams 3VA molded case circuit breakers with UL and IEC certification 390 Manual 01 2019 L1V30435333 01 6 1 1 3 Example 3VA5 molded case circuit breakers with accessories external internal ...

Page 393: ... 2 3VA6 molded case circuit breakers 6 1 2 1 Basic units Fixed mounted and plug in draw out units 3 pole and 4 pole Fixed mounted 3 pole and 4 pole Plug in draw out units 3 pole and 4 pole Voltage tap Fixed mounted 3 pole 3VA6 molded case circuit breaker in 5 wire system Optional external current transformer for N conductor gray line Voltage tap ...

Page 394: ...xiliary 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 Auxiliary releases Undervoltage release UVR Universal release UNI Shunt trip ...

Page 395: ... 1 Circuit diagrams 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 393 Other internal accessories COM060 communication module 24 V module Motor operators Front mounted motor operator ...

Page 396: ...nual 01 2019 L1V30435333 01 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 ...

Page 397: ...2 Indicator light 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 conta...

Page 398: ...hnology Plug in units 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 ta...

Page 399: ...nual 01 2019 L1V30435333 01 397 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 ...

Page 400: ... L1V30435333 01 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 ...

Page 401: ... 01 399 COM800 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 ...

Page 402: ...Technical specifications 6 1 Circuit diagrams 3VA molded case circuit breakers with UL and IEC certification 400 Manual 01 2019 L1V30435333 01 MMB300 maintenance mode box ...

Page 403: ...former 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 24 V DC 230 V AC 50 60 Hz 230 V DC Dashed lines represent optional connections For the detailed wiring refer to the operating instructions ...

Page 404: ...olded case circuit breakers with UL and IEC certification 402 Manual 01 2019 L1V30435333 01 6 1 2 3 Example 3VA6 molded case circuit breakers with accessories external internal A connection can also be optionally equipped with a bus terminating resistor ...

Page 405: ...R 1 Undervoltage 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 In the case of supply system voltage 480 V AC the undervoltage release UVR must not be connected to phases L1 and L3 In this case i...

Page 406: ...cations 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 404 Manual 01 2019 L1V30435333 01 6 2 Dimensional drawings 6 2 1 Dimensions of basic units 6 2 1 1 3VA51 3VA51 125 A 1 pole ...

Page 407: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 405 3VA51 125 A 3 pole ...

Page 408: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 406 Manual 01 2019 L1V30435333 01 6 2 1 2 3VA52 3VA52 250 A 3 pole ...

Page 409: ...echnical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 407 6 2 1 3 3VA61 3VA62 3VA61 150 A 3VA62 250 A 3 and 4 pole ...

Page 410: ...echnical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 408 Manual 01 2019 L1V30435333 01 6 2 1 4 3VA63 3VA64 3VA63 400 A 3VA64 600 A 3 and 4 pole ...

Page 411: ... circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 409 6 2 2 Dimensions of accessories 6 2 2 1 Connection technology Rear busbar and compression lug connections for plug in and draw out molded case circuit breakers Rear connection stud flat ...

Page 412: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 410 Manual 01 2019 L1V30435333 01 Rear connection stud round ...

Page 413: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 411 Phase barrier ...

Page 414: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 412 Manual 01 2019 L1V30435333 01 Terminal cover Extended terminal cover ...

Page 415: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 413 Terminal cover offset ...

Page 416: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 414 Manual 01 2019 L1V30435333 01 Insulating plate Insulating plate ...

Page 417: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 415 Broadened insulating plate ...

Page 418: ...specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 416 Manual 01 2019 L1V30435333 01 6 2 2 2 Plug in and draw out units Plug in socket 3VA6 150 250 A and 400 A ...

Page 419: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 417 ...

Page 420: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 418 Manual 01 2019 L1V30435333 01 3VA6 600 A ...

Page 421: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 419 ...

Page 422: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 420 Manual 01 2019 L1V30435333 01 Draw out unit 3VA6 150 250 A and 400 A ...

Page 423: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 421 ...

Page 424: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 422 Manual 01 2019 L1V30435333 01 3VA6 600 A ...

Page 425: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 423 ...

Page 426: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 424 Manual 01 2019 L1V30435333 01 Door feedthrough ...

Page 427: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 425 6 2 2 3 Manual operators Front mounted rotary operator ...

Page 428: ...echnical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 426 Manual 01 2019 L1V30435333 01 Door mounted rotary operator Door mounted rotary operator ...

Page 429: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 427 1 Variable depth adapter ...

Page 430: ...l specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 428 Manual 01 2019 L1V30435333 01 Door mounted rotary operator with variable depth adapter 3VA9487 0GB10 ...

Page 431: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 429 ...

Page 432: ...ical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 430 Manual 01 2019 L1V30435333 01 Supplementary handle for door mounted rotary operator 3VA9 87 0GC ...

Page 433: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 431 ...

Page 434: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 432 Manual 01 2019 L1V30435333 01 3VA9 87 0GA80 ...

Page 435: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 433 ...

Page 436: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 434 Manual 01 2019 L1V30435333 01 Articulated shaft operator ...

Page 437: ...cal specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 435 Side wall mounted rotary operator Side wall mounted rotary operator ...

Page 438: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 436 Manual 01 2019 L1V30435333 01 Side wall mounted rotary operator with mounting plate ...

Page 439: ...ations 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 437 Operator kit with Bowden cable Max Flex operator Handle Switching mechanism for 3VA5 125 A ...

Page 440: ...tions 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 438 Manual 01 2019 L1V30435333 01 Switching mechanism for 3VA5 250 A and 3VA6 150 250 A Switching mechanism for 3VA6 400 600 A ...

Page 441: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 439 6 2 2 4 Motor operators MO320 motor operator ...

Page 442: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 440 Manual 01 2019 L1V30435333 01 6 2 2 5 Locking and interlocking Handle blocking device ...

Page 443: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 441 Locking blocking or interlocking with cylinder lock ...

Page 444: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 442 Manual 01 2019 L1V30435333 01 Module for sliding bar with Bowden cable Sliding bar ...

Page 445: ...chnical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 443 Rear interlock Mounting on rear wall of panel fixed mounted ...

Page 446: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 444 Manual 01 2019 L1V30435333 01 Mounting on rear wall of panel plug in technology ...

Page 447: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 445 Mounting on rear wall of panel draw out technology ...

Page 448: ...Technical specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 446 Manual 01 2019 L1V30435333 01 Mounting with mounting plate and profile rail ...

Page 449: ...ons 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 447 6 2 2 6 Communication and system integration COM800 and COM100 breaker data server DSP800 display ...

Page 450: ... specifications 6 2 Dimensional drawings 3VA molded case circuit breakers with UL and IEC certification 448 Manual 01 2019 L1V30435333 01 6 2 2 7 EFB300 external function box 6 2 2 8 MMB300 maintenance mode box ...

Page 451: ...reakers with UL and IEC certification Manual 01 2019 L1V30435333 01 449 6 2 2 9 Test devices TD300 activation and trip box Refer to chapter Technical specifications of TD300 Page 364 TD500 test device Refer to chapter Technical specifications Page 375 6 2 2 10 Door cover frame ...

Page 452: ... and IEC certification 450 Manual 01 2019 L1V30435333 01 6 3 Power losses 6 3 1 Power losses of 3VA5 molded case circuit breakers Note For 3 pole devices the specified power loss applies in the case of 3 phase symmetrical loading 3VA5 molded case circuit breakers for line protection ...

Page 453: ...Technical specifications 6 3 Power losses 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 451 3VA5 molded case circuit breakers for starter protection ...

Page 454: ...of 3VA6 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 If the 4th pole is not de energized e g DC applications unbalanced loading many 1 pole loads the 4th pole has one third the power loss of the 3 pole power loss 3VA6 molded case circuit breakers for line protection ...

Page 455: ...ers with UL and IEC certification Manual 01 2019 L1V30435333 01 453 3VA6 molded case circuit breakers for starter protection 6 3 3 Power loses of 3VA UL molded case switches Note For 3 pole devices the specified power loss applies in the case of 3 phase symmetrical loading ...

Page 456: ...the unit To prevent overloading of 3VA5 molded case circuit breakers under difficult thermal conditions the maximum rated continuous operational current must be limited as a function of the ambient temperature Note The values do not apply to all installation situations of the molded case circuit breaker and may deviate depending upon factors such as cables and busbars packing density ventilation e...

Page 457: ...g 3VA molded case circuit breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 455 3VA5 molded case circuit breakers for line protection No derating up to the rated operational current In of the molded case circuit breaker ...

Page 458: ...ed operational current In of the molded case circuit breaker 3VA UL molded case switches No derating up to the rated operational current In of the molded case circuit breaker 6 4 2 Use of terminals with control wire tap When connecting terminals with control wire tap are used the total current from the main circuit and control wire must not exceed the maximum rated operational current of the molde...

Page 459: ...t The rated operational current must therefore be reduced from the value used in 50 60 Hz applications In an application with 400 Hz this means the following for the example from chapter Derating of 3VA5 molded case circuit breakers Page 454 with a 3VA5 molded case circuit breaker and a desired current Ir 90 A Setting value Ir 400 Hz 90 A 0 9 86 A Where ambient temperatures differ from the calibra...

Page 460: ...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 operational curren...

Page 461: ... breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 459 3VA6 molded case circuit breakers for line protection Fixed mounted COM060 COM060 communication module No derating up to the rated operational current In of the molded case circuit breaker ...

Page 462: ...olded case circuit breakers with UL and IEC certification 460 Manual 01 2019 L1V30435333 01 Plug in and draw out technology COM060 COM060 communication module No derating up to the rated operational current In of the molded case circuit breaker ...

Page 463: ...breakers with UL and IEC certification Manual 01 2019 L1V30435333 01 461 3VA6 molded case circuit breakers for starter protection Fixed mounted COM060 COM060 communication module No derating up to the rated operational current In of the molded case circuit breaker ...

Page 464: ...olded case circuit breakers with UL and IEC certification 462 Manual 01 2019 L1V30435333 01 Plug in and draw out technology COM060 COM060 communication module No derating up to the rated operational current In of the molded case circuit breaker ...

Page 465: ...0 communication module No derating up to the rated operational current In of the molded case circuit breaker Example 1 Starting point A 3VA61 100 A molded case circuit breaker with an ETU350 LSI trip unit is to be operated at 70 C with plug in technology Ir max 70 C 100 A No derating is required Example 2 Starting point A 3VA62 250 A molded case circuit breaker with an ETU850 LSI trip unit is to b...

Page 466: ...Technical specifications 6 4 Derating 3VA molded case circuit breakers with UL and IEC certification 464 Manual 01 2019 L1V30435333 01 ...

Page 467: ...est Db Damp 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...

Page 468: ... 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 UL 489 UL Standard for Safety for Molded Case Circuit Breakers Molded Case Switches and Circuit Breaker Enclosures UL 1053 Standard For Safety For Ground Fault Sensing and Relaying Equipment RoHS Directive 2002 95 EC Directive on the restrictio...

Page 469: ...d or damaged 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 f...

Page 470: ...9 L1V30435333 01 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 Panel ground connection Figure B 1 ESD work center ...

Page 471: ...otection 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 DAS Dynamic Arc Sentry 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 ...

Page 472: ...ction G LIN Overload protection L instantaneous short circuit protection I and neutral conductor 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 protecti...

Page 473: ...t SWD Switching duty T Test T IT systems French Terre ground TC Test device for molded case circuit 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 U...

Page 474: ...ntaneous 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 current generator IP Rated peak withstand current impulse short circuit current Ir Thermal protection setting current...

Page 475: ...me associated with current setting value of adjustable overload release Tp Trip time delay time time lag class 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 when ZSI is activated U Voltage across main contacts...

Page 476: ...List of abbreviations C 1 Table of abbreviations 3VA molded case circuit breakers with UL and IEC certification 474 Manual 01 2019 L1V30435333 01 ...

Page 477: ...ensions Metric cross sections 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...

Page 478: ...435333 01 kcmil mm2 conversion table AWG kcmil Diameter d mm mm2 kcmil 250 14 6 1 126 300 16 1 152 350 17 3 1 177 400 18 49 1 203 500 20 65 1 253 600 22 68 1 304 800 26 16 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 ...

Page 479: ... ounce Oz 28 35 grams g 1 pound lb 0 454 kilograms kg 1 kilogram kg 2 205 pounds lb Pound lb Conversion for units of temperature Temperature 100 degrees Centigrade C 212 degrees 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...

Page 480: ...Conversion tables D 1 Conversion tables 3VA molded case circuit breakers with UL and IEC certification 478 Manual 01 2019 L1V30435333 01 ...

Page 481: ... 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 amplitude of the short circuit current due to for example resistance switching delay and peak arc voltage The let through current of a device such as a current limiting fuse or a current limiti...

Page 482: ...urrent that a switching device can conduct at the instant of closing in accordance with the utilization category at the relevant rated operational voltage Rated operational current The rated operational current In for molded case circuit breakers is equivalent to the rated uninterrupted current IU and to the conventional free air thermal current Ith Rated operational voltage The rated operational ...

Page 483: ...f the DC component The rated short circuit breaking capacity also ensures that the molded case circuit breaker can interrupt every current up to the rated short circuit breaking capacity in the event of a line frequency recovery voltage with 110 of the rated operational voltage This applies To alternating current at every value of the power factor but not lower than the value defined in the releva...

Page 484: ...molded case circuit breaker is capable of interrupting test O CO formerly test sequence P III After the molded case circuit breaker has cleared the short circuit it is capable of tripping with increased tolerances under overload conditions Limit value of rated ultimate short circuit breaking capacity Icu Rated uninterrupted current The rated uninterrupted current IU of a switching device e g a mol...

Page 485: ...ent of overload release The current value at which a trip unit trips within a specified time Tripping current ground fault When the ground fault current reaches or exceeds this limit value the ground fault protection for example of a molded case circuit breaker is tripped Tripping current instantaneous When this current limit is exceeded the circuit breaker trips instantaneously Tripping current o...

Page 486: ...Glossary 3VA molded case circuit breakers with UL and IEC certification 484 Manual 01 2019 L1V30435333 01 ...

Page 487: ...317 Box terminal 177 Breaker data server Draw out technology 242 Breaker position indication CONNECT 30 DISCON 30 TEST 30 UNBLOCK 30 Breaking capacity Direct current 143 Bus connectors extended Front 194 Bus connectors offset 196 Busbars 171 C Cable stripping 170 Cables 168 Cables and busbars Busbars 171 Cables 168 Certification 51 Characteristic curve 66 Circuit breaker identification 38 Circuit ...

Page 488: ...ocking technology 279 Locking technology 278 Supplementary handle 276 Tolerance compensator 274 Variable depth adapter 277 Double contact system 49 Draw out technology 222 237 242 249 Auxiliary circuit connector 250 Complete kit 236 Conversion kit 237 Defined position 235 Installation overview 224 Position signaling switch 244 Rear interlock 325 Sliding clutch 235 Variable depth adapter 277 Draw o...

Page 489: ...tor 279 Electrical 162 Front 311 311 Front mounted rotary operator 269 Mounting plate 324 Plug in and draw out technology 325 Rear 321 321 Releasing a different molded case circuit breaker 315 Side wall mounted rotary operator 284 Sliding bar 316 319 IT system 148 K Key data 40 Knowledge Manager 41 L Labeling plate cover frame 380 Labels 39 Limitation of rated operational current 3VA6 458 Line pro...

Page 490: ...iliary release 162 Undervoltage release 163 Universal release 163 Requirements climatic 51 Reset mode 298 Rogowski coil 95 Rotary double contact system 49 Rotary operator Switching position 32 S Setting trip parameters 67 Shock resistance 52 Short circuit protection Instantaneous 69 Short time delayed 69 Short time delayed short circuit protection 69 Shunt trip 162 Side wall mounted rotary operato...

Page 491: ...rs TD500 372 Thermal memory 68 Thermal magnetic trip unit TMTU Time delay device 166 TMTU 64 79 Line protection 102 Parameter 102 104 Trip unit type 79 Tolerance compensator 274 Cover frame 379 TRANS TD500 373 Transport 467 Trip Shunt trip 163 Trip alarm switch TAS 157 Trip parameters setting 67 Trip test TD300 363 Trip unit 64 Trip unit type 79 Tripping characteristic 66 Tubular compression lug 1...

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