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Introduction

1.1 Responsibility of the user for system configuration and functionality

SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays

Manual, 09/2014, A5E03656507420A/RS-AA/002

Advantages through energy efficiency

Siemens offers you a unique portfolio for efficient energy management in industry – a

process that serves to optimally shape your energy requirement. Operational energy

management is subdivided into three phases:

●

Identifying

●

Evaluating

●

Realizing

Siemens supports you with suitable hardware and software solutions in every phase of a

project.
More information can be found on the Internet

(

http://www.automation.siemens.com/mcms/industrial-controls/en/energy-efficiency

The 3RB30/3RB31 electronic overload relays make the following contribution to energy

efficiency in an overall installation:

●

Reduced intrinsic power loss

●

Reduced control cabinet heat development

●

Smaller control cabinet air conditioning units required

Figure 1-1

Overview of the energy management process

Required basic knowledge

To understand these operating instructions you should have a general knowledge of

automation engineering and low-voltage switchgear.

Scope of the manual

The manual is valid for these overload relays. It contains a description of the devices that is

valid at the time of publication.

Содержание SIRIUS 3RB3

Страница 1: ...Gerätehandbuch Manual Industrial Controls Protection Devices SIRIUS Innovations Thermal Overload Relays SIRIUS 3RU2 Solid State Overload Relays SIRIUS 3RB3 Edition Answers for industry 09 2014 ...

Страница 2: ......

Страница 3: ...___________________ ___________________ ___________________ ___________________ Industrial Controls Protection devices SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 Introduction 1 Standards 2 Product description 3 Product combinations 4 Functions 5 Configuration 6 Mounting 7 Connection 8 Operation 9 Accessori...

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

Страница 5: ...5 Functions 37 5 1 Protection against overload phase failure and phase asymmetry 37 5 1 1 Functional principle 37 5 1 2 Inverse time delayed overload release 38 5 1 3 Tripping classes 38 5 1 4 Tripping characteristics 39 5 2 Ground fault protection in the case of the 3RB31 43 5 3 Auxiliary contacts 44 5 4 Indication of the operating state 45 5 5 Self monitoring 3RB30 3RB31 only 45 5 6 Additional f...

Страница 6: ...ring loaded connection systems 70 8 4 3 Conductor cross sections for ring cable lug connection system 72 9 Operation 75 9 1 Setting the current 75 9 2 Setting the tripping class ground fault detection 3RB31 76 9 3 RESET after release 77 9 4 TEST function 80 9 5 Response of the auxiliary contacts 82 10 Accessories 83 10 1 Accessories 83 10 2 Terminal support for stand alone assembly 84 10 2 1 Descr...

Страница 7: ...11 3 2 3 Main circuit terminals 118 11 3 2 4 Auxiliary circuit 119 11 3 2 5 Auxiliary circuit connections 120 11 3 2 6 Protection function 120 11 3 2 7 Safety 120 11 3 2 8 Mounting fixing dimensions 121 11 3 2 9 UL CSA rated data 121 11 3 2 10 Rated operating current short circuit protection tripping class and active power loss 122 11 4 3RB30 3RB31 solid state overload relays 123 11 4 1 3RB301 3RB...

Страница 8: ...ces 147 B 1 References 147 B 2 SIRIUS Innovations manuals 148 B 3 More information 150 C Dimension drawings dimensions in mm 151 C 1 Dimension drawings for 3RU21 thermal overload relays 151 C 2 Dimension drawings for 3RB30 3RB31 solid state overload relays 157 C 3 3RT2 contactors drilling plan 164 C 4 Dimension drawings and drilling plan for 3RU29 6 stand alone assembly supports 166 D Correction s...

Страница 9: ...egional offices and associated companies hereinafter referred to as Siemens cannot guarantee all the properties of an overall installation or machine that has not been designed by Siemens Nor can Siemens assume liability for recommendations that appear or are implied in the following description No new guarantee warranty or liability claims beyond the scope of the Siemens general terms of supply a...

Страница 10: ...lutions in every phase of a project More information can be found on the Internet http www automation siemens com mcms industrial controls en energy efficiency The 3RB30 3RB31 electronic overload relays make the following contribution to energy efficiency in an overall installation Reduced intrinsic power loss Reduced control cabinet heat development Smaller control cabinet air conditioning units ...

Страница 11: ... Support ensures that users in industry are always kept up to date with news software updates and announcements by means of newsletters and Twitter Links Service Support Portal http support automation siemens com Online Support http support automation siemens com WW view en 16605022 Product Support Are you looking for product information such as technical data updates or FAQs Here the Product Supp...

Страница 12: ... 3D models Internal circuit diagrams EPLAN macro files Manuals Characteristics Operating instructions Certificates Product master data Link CAx Download Manager http support automation siemens com WW view en 42455541 Applications Tools Applications Tools supports you with various tools and examples when it comes to solving your automation tasks Solutions are presented in interaction with several c...

Страница 13: ...tunity to create and manage you own compilations in a structure of their own Link MyDocumentationManager http support automation siemens com WW view en 38715968 Reference You can find further information on structure and navigation in Online Support here http support automation siemens com WW view en 11774658 Further documentation To install and connect the overload relays you require the operatin...

Страница 14: ...device information is encoded in the DataMatrix codes as a bit stream Article number Serial number If applicable MAC address This information is stored in the following format in the DataMatrix code 1P Article number S Location Date Serial number Data identifier User content Separator User content Separator User content User content Note The information content is displayed without spaces This mac...

Страница 15: ...t access to all device specific information relating to an article number in the SIEMENS Service Support Portal such as operating instructions manuals data sheets FAQs etc We provide the SIEMENS Industry Support app free for this purpose and it can be used on most commercially available smartphones and tablets The SIEMENS Industry Support app is available for iOS and Android based devices and can ...

Страница 16: ...e disposal of electronic waste Up to the minute information You can obtain further assistance by calling the following numbers Technical Assistance Telephone 49 911 895 5900 8 a m to 5 p m CET Fax 49 911 895 5907 or on the Internet at E mail mailto technical assistance siemens com Internet http www siemens com sirius technical assistance Correction sheet A correction sheet is included at the end o...

Страница 17: ...imates The overload relays are climate proof according to IEC 60721 3 Touch protection Degree of protection according to IEC 60529 IP20 You can find more information about the touch protection of 3RU21 thermal overload relays and 3RB3 solid state relays in the Chapter Connection Page 65 Reference Other standards that the 3RU21 and 3RB30 3RB31 overload relays conform to are listed in the Chapter Te...

Страница 18: ...Standards 2 1 Standards SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 18 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 19: ...tate overload relays up to 80 A with internal power supply have been designed to provide current dependent protection for loads with normal starting and heavy starting against impermissibly high temperature rises due to overload phase asymmetry or phase failure An overload phase asymmetry or a phase failure results in an increase of the motor current beyond the set rated motor current This current...

Страница 20: ...and 3RB30 and 3RB31 solid state overload relays are available in three sizes S00 S0 and S2 Connection systems The overload relays are available with the following connection system options Screw type connection system Spring loaded connection system size S2 auxiliary circuit only Ring cable lug connection technology 3RU21 only in size S00 and S0 3RB3 solid state overload relays are available in si...

Страница 21: ...RB30 solid state overload relays Size Width Current range Rated operating power for three phase motors at 400 V AC Rated operating voltage Ue Rated frequency Trip class S00 45 mm 0 1 to 16 A 0 04 to 7 5 kW 690 V AC 50 60 Hz CLASS 10E or 20E fixed S0 45 mm 0 1 to 40 A 0 04 to 18 5 kW S2 55 mm 12 5 to 80 A 5 5 to 37 kW Table 3 3 3RB31 solid state overload relays Size Width Current range Rated operat...

Страница 22: ...t three phase loads DC loads and single phase AC loads Note Protection of DC loads single phase AC loads If a 3RU21 thermal overload relay is to be used to protect DC loads or single phase AC loads all the bimetal strips have to be heated Therefore all of the relay s main current paths have to be connected in series 3RB30 3RB31 solid state overload relays 3RB30 3RB31 solid state overload relays ar...

Страница 23: ...more than 400 V Compared with fuseless design the fuses still have an extremely high short circuit breaking capacity in excess of 100 kA even in these voltage ranges Automatic RESET is easy to implement with the overload relays Following an overload trip the load feeder need not be switched on again on site Attachable electrical or mechanical RESET modules compatible for use with all sizes enable ...

Страница 24: ...to the rated motor current Feed through Contactor coil terminal Feed through Contactor auxiliary switch Main circuit terminals A screw type spring loaded or ring cable lug connection system can be used to connect the main circuit terminal Control circuit terminals A screw type spring loaded or ring cable lug connection system can be used to connect the control circuit terminal STOP button Pressing...

Страница 25: ...arge rotary button provides an easy means of setting the device to the rated motor current Main circuit terminals A screw type spring loaded or ring cable lug connection system can be used to connect the main circuit terminal Control circuit terminals A screw type spring loaded or ring cable lug connection system can be used to connect the control circuit terminal STOP button Pressing the button o...

Страница 26: ... can be used to connect the main circuit terminal Control circuit terminals A screw type or spring loaded connection system can be used to connect the control circuit terminal STOP button Pressing the button opens the NC contact thereby disconnecting the downstream contactor The NC contact closes again when the button is released Selector switch for manual automatic RESET and RESET button This swi...

Страница 27: ...s testing of the wiring RESET button A device set to manual RESET can be reset locally by pressing the RESET button Electronics test device test Enables a test of all major device components and functions Control circuit terminals removable A screw type or spring loaded system can be used to connect the control circuit terminal Feed through Contactor auxiliary switch Feed through Contactor coil te...

Страница 28: ...and TEST function for wiring Indicates a trip and facilitates testing of the wiring RESET button A device set to manual RESET can be reset locally by pressing the RESET button Electronics test device test Enables a test of all major device components and functions Control circuit terminals removable A screw type or spring loaded system can be used to connect the control circuit terminal Main circu...

Страница 29: ...cs test device test Enables a test of all major device components and functions Control circuit terminal removable A screw type or spring loaded system can be used to connect the control circuit terminal Main circuit terminal The main circuit can be connected using either the screw type connection system or through hole technology with straight through transformer Selector switch for manual automa...

Страница 30: ...utton A device set to manual RESET can be reset locally by pressing the RESET button In addition an electronic remote RESET is integrated into the 3RB31 Tripping class setting internal ground fault detection This rotary switch is used to set the required tripping class dependent upon the starting conditions and activate internal ground fault detection Electronics test device test Enables a test of...

Страница 31: ... relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 31 Front view Description Terminal labels 2 T1 Main circuit terminals 4 T2 6 T3 95 NC contact NC 95 96 96 97 NO contact NO 97 98 98 14 22 Feed through contactor auxiliary switch A2 Feed through contactor coil terminal ...

Страница 32: ...e reset locally by pressing the RESET button In addition an electronic remote RESET is integrated into the 3RB31 Tripping class setting internal ground fault detection This rotary switch is used to set the required tripping class dependent upon the starting conditions and activate internal ground fault detection Electronics test device test Enables a test of all major device components and functio...

Страница 33: ...rnal ground fault detection 3RB313 only This rotary switch is used to set the required tripping class dependent upon the starting conditions and activate internal ground fault detection Electronics test device test Enables a test of all major device components and functions Control circuit terminal removable A screw type or spring loaded system can be used to connect the control circuit terminal M...

Страница 34: ...SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 34 Manual 09 2014 A5E03656507420A RS AA 002 Auxiliary contacts 3RB31 solid state overload relays are equipped with an NO contact for the tripped message and an NC contact for disconnecting the contactor ...

Страница 35: ...ed to one another both electrically and mechanically they can be combined quickly and easily Reference More information Is available in the appendix About the possible combinations of standard products from the SIRIUS modular system References under SIRIUS Innovations manuals Page 148 More information can be found in the Chapter on the overload relay and contactor combination options Overview of c...

Страница 36: ...Product combinations SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 36 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 37: ...different operating principles Thermally with bimetals 3RU21 Electronically with current transformers and evaluation electronics 3RB30 and 3RB31 Functional principle of 3RU21 thermal overload relays The current rise caused by the overload causes increased heat rise affecting the heating elements The bimetals respond by deflecting and actuate the auxiliary contacts via the release mechanism Functio...

Страница 38: ...nsate temperatures from 40 C to 60 C 3RU21 and 25 C to 60 C 3RB30 3RB31 according to IEC 60947 4 1 5 1 3 Tripping classes The tripping classes describe time intervals within which the overload relays have to trip in the case of a symmetrical 3 pole load from the cold state with 7 2 times the current setting 3RU21 thermal overload relays 3RU21 thermal overload relays are available for normal starti...

Страница 39: ... standard IEC EN 60947 4 1 tolerance band E Trip class Tripping time tA in s at 7 2 x Ie from cold CLASS 5E 3 tA 5 CLASS 10E 5 tA 10 CLASS 20E 10 tA 20 CLASS 30E 20 tA 30 5 1 4 Tripping characteristics Introduction The tripping characteristic curves map the relationship between tripping time and tripping current as a multiple of the current setting Ie they are specified for symmetrical 3 pole and ...

Страница 40: ...chanism and would need a longer tripping time or a higher current if no additional action was taken If these higher currents are applied over a longer period of time they usually cause damage to the load To avoid damage 3RU21 overload relays feature phase loss sensitivity which uses a corresponding mechanism to induce accelerated tripping in accordance with the characteristic curve for 2 pole load...

Страница 41: ...3RB30 3RB31 solid state overload relays disconnect the contactor more quickly to minimize the load s temperature rise in accordance with the tripping characteristic curve for two pole loading from the cold state see Figure 2 In the event of phase asymmetry the devices disconnect dependent upon the extent of the asymmetry between the two characteristic curves Compared with a cold load a load at ope...

Страница 42: ...verload relays 42 Manual 09 2014 A5E03656507420A RS AA 002 Figure 2 t s Tripping time I A Current Figure 5 3 2 pole load 3RB30 3RB31 Reference The figures are schematic representations of the characteristic curves The characteristic curves for the individual overload relays can be downloaded from the Internet http www siemens com automation service support ...

Страница 43: ...al point voltage is simulated virtually in the device and when a neutral point displacement voltage arises the overload relay switches the contactor off instantaneously This prevents thermal follow on damage and a resulting and significantly more critical double ground fault Note Contactor assembly for star delta wye delta start Internal ground fault detection is not possible with contactor assemb...

Страница 44: ...act Response to overload NC contact NC 95 96 Disconnects the contactor thereby protecting The contactor The cables The load NO contact NO 97 98 Sends a signal e g to the Control system Lamp Other actuators Note Contact rating The contact rating of the auxiliary switches to be taken into account is specified in the Technical data Page 101 Reference More information Can be found in the chapter title...

Страница 45: ... trips the slide marker moves to 0 An overload relay can trip for the following reasons Overload Phase asymmetry Phase failure or Ground fault 3RB31 Internal error 3RB30 3RB31 Resetting The relay is reset manually or automatically after a recovery time has elapsed Reference Additional information Can be found in the chapter titled About resetting RESET after release Page 77 5 5 Self monitoring 3RB...

Страница 46: ...Chapter about optional mechanical and electrical RESET modules Accessories Page 83 Stop function 3RU21 only Pressing the STOP button on the 3RU21 thermal overload relay opens the NC contact thereby disconnecting the downstream contactor and thus the load In the case of maintained contact operation in the auxiliary circuit the load is switched back on via the contactor when the red STOP button is r...

Страница 47: ... with the motor current flowing device electronics test Current sensing the motor model and the tripping unit are tested The switch position indicator slide can be used to test the auxiliary contacts and the control current wiring The tripping of the relay can be simulated by moving the slide thereby providing a means of checking that the auxiliary circuit has been wired correctly Reference More i...

Страница 48: ...Functions 5 6 Additional functions SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 48 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 49: ...onfigurator Reference To assist you with configuration the SIRIUS Innovations system configurator is at your disposal on the Internet Here you can gather together all necessary products before the actual configuration process and you can realize complete projects virtually You can find the SIRIUS Innovations system configurator on the Internet http www siemens com sirius configurators ...

Страница 50: ...loads only 3 pole circuits 3 phases are permitted 4 pole circuits 3 phases neutral conductor are not permitted Note Design of motor feeders An overload relay alone cannot generally protect a load against overcurrents The tripping characteristic curve is too inert for a short circuit and also the contactor actuated by the relay in the event of tripping is not suitable for reliable breaking in the e...

Страница 51: ... information on using the overload relays in feeders in the Chapter Technical data Page 101 Table 6 3 Solid state overload relay with contactor assemblies Contactors Type 3RT201 3RT202 3RT203 Solid state overload relay 1 Size S00 S0 S2 Type Size Current range A Power kW 3 4 5 5 7 5 5 5 7 5 11 15 18 5 15 18 5 22 30 37 3RB3 1 S00 0 1 16 3RB3 2 S0 0 1 40 3RB3 3 S2 12 5 80 1 You can find more informat...

Страница 52: ...or current The start time refers to the time required by the motor between switching on and reaching its rated speed Table 6 4 Normal starting Designation Start time Normal starting 10 s Heavy duty starting 10 s Heavy duty starting Note Overload relays with corresponding tripping classes are required to protect heavy duty starting motors for the acceleration of large centrifuges for example In the...

Страница 53: ...art you need to bear in mind that only 1 3 times the motor current flows through the line contactor An overload relay mounted onto a line contactor has to be set to this 0 58 times motor current Note Internal ground fault detection on the 3RB31 If you are using the 3RB31 solid state overload relay in conjunction with contactor assemblies for star delta wye delta start internal ground fault detecti...

Страница 54: ...on the secondary side of the frequency converter we recommend 3RN thermistor motor protection devices or 3RU21 thermal overload relays Reference More information can be found on the Internet at about setting corrections and other factors when using circuit breakers and overload relays on the secondary side of frequency converters Circuit breakers and overload relays on the secondary side of freque...

Страница 55: ...useless design must be used for short circuit protection The types of coordination must also be considered when selecting load feeders from the tables References More information Can be found About coordination of corresponding short circuit protective devices with overload relays in the configuration guide titled Configuring SIRIUS Innovations Selection data for load feeders in fuseless and fused...

Страница 56: ...Area G areas in which potentially explosive gas vapor mist and air mixes are present and additionally in Area D areas containing combustible dust 3RB30 3RB31 solid state overload relays and 3RU21 thermal overload relays are not intended for installation in hazardous areas When installed in hazardous areas 3RB30 3RB31 solid state overload relays and 3RU21 thermal overload relays must be adapted to ...

Страница 57: ...istance to extreme climates The overload relays are climate proof The overload relays are not sensitive to external influences such as shocks corrosive ambient conditions ageing and temperature fluctuations Ambient temperatures for 3RU21 overload relays 3RU21 thermal overload relays compensate temperature within the temperature range 40 C to 60 C in accordance with IEC EN 60947 4 1 At temperatures...

Страница 58: ...red for size S00 to 16 A The following maximum rated operating currents are permissible for device versions with the setting range 10 to 40 A for size S0 Table 6 7 Derating during heavy duty starting 3RB30 3RB31 overload relays size S0 Trip class Rated operating current CLASS 20E Ie max 32 A CLASS 30E Ie max 25 A The following maximum rated operating currents are permissible for device versions wi...

Страница 59: ...rnatively the devices are suitable for stand alone assembly 7 2 Minimum clearances and mounting position Minimum clearance A minimum lateral clearance of 6 mm must be maintained from live and grounded parts Mounting position for 3RU21 thermal overload relay The diagrams below illustrate the permissible mounting positions for contactor mounting and stand alone assembly for 3RU21 thermal overload re...

Страница 60: ...any position in stand alone assembly 7 3 Mounting Disassembly Direct mounting on 3RT contactor The diagram below shows an example mounting scenario based on mounting the 3RU21 thermal overload relay size S0 on the 3RT2 contactor The contactor overload relay combinations can be snapped onto 35 mm DIN rails according to EN 60715 Table 7 3 Mounting the 3RU21 overload relay with a screw type connectio...

Страница 61: ...sh to the right Make sure that the guide tabs are inserted into the designated slots on the contactor The overload relay will sit flush with the contactor on the left and right hand sides The table below shows the openings of the main conductor terminals on the contactor into which the overload relay contacts have to be inserted Main conductor terminals on the contactor a S00 Main conductor termin...

Страница 62: ... For screw mounting the contactor first has to be fastened with screws and then the overload relay mounted on the top of the contactor as shown in the figures Disassembly To disassemble the contactor relay combination from the DIN rail press the contactor down and pull it toward you Table 7 5 Overload relay disassembly screw type connection system Step Instructions Figure 1 Undo the screw on the m...

Страница 63: ...ection system Step Instructions Figure 1 Position the screwdriver on the overload relay as shown in the figure Carefully dislodge the overload relay from the contactor 2 Pull the overload relay toward you and away from the contactor Note Ring cable lug connection system The procedure for disassembling the overload relays with ring cable lug connection system is similar to that for disassembly with...

Страница 64: ...Mounting 7 3 Mounting Disassembly SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 64 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 65: ...odular system are matched to one another on a size specific basis Coil repeat and auxiliary switch repeat terminal In the case of size S00 3RU21 thermal overload relays and 3RB30 3RB31 solid state overload relays direct contactor mounting involves feed through of the auxiliary switch and coil terminals A2 on the contactor This makes wiring much easier Touch protection Please observe the informatio...

Страница 66: ...e SIRIUS Innovations System Overview manual about conductor cross sections and tightening torques In the chapter Technical data Page 101 8 3 Connection of 3RB30 3RB31 overload relays Control circuit The 3RB30 and 3RB31 solid state overload relays do not need an additional supply voltage because they power themselves via the integrated current transformers Connection of terminals The terminal label...

Страница 67: ... terminals and auxiliary conductor connections in sizes S00 S0 and S2 for screw type connection systems Note If two different conductor cross sections are connected to one clamping point both cross sections must be located in the range specified Table 8 1 Main conductors of size S00 Overload relay 1 Tool Pozidriv size PZ 2 Ø 5 to 6 mm Tightening torque 0 8 to 1 2 Nm Solid and stranded 2 x 0 5 to 1...

Страница 68: ...inely stranded with end sleeve 2 x 1 to 2 5 mm 2 x 2 5 to 6 mm Max 1 x 10 mm AWG 2 x 16 to 12 2 x 14 to 8 1 Only 1 conductor can be clamped on the stand alone assembly support Table 8 3 Main conductors of size S2 with box terminal Overload relay 1 Tool Pozidriv size PZ 2 Ø 5 to 6 mm Tightening torque 3 0 to 4 5 Nm Solid and stranded 2 x 1 to 35 mm 1 x 1 to 50 mm Finely stranded without end sleeve ...

Страница 69: ...00 S0 and S2 on the 3RU2 thermal overload relay Overload relay Tool Pozidriv size PZ 2 Ø 5 to 6 mm Tightening torque 0 8 to 1 2 Nm Solid and stranded 2 x 0 5 to 1 5 mm 2 x 0 75 to 2 5 mm Finely stranded with end sleeve 2 x 0 5 to 1 5 mm 2 x 0 75 to 2 5 mm AWG 2 x 20 to 16 2 x 18 to 14 Table 8 6 Removable terminal on the 3RB3 solid state overload relay Removable terminal Tool Pozidriv size PZ 2 Ø 6...

Страница 70: ...minals in sizes S00 and S0 and auxiliary conductor connections in sizes S00 S0 and S2 for spring loaded connection systems Table 8 7 Main conductors of size S00 Overload relay Tool Ø3 0 x 0 5 3RA2908 1A Solid and stranded 1 x 0 5 to 4 0 mm Finely stranded without end sleeve 1 x 0 5 to 2 5 mm Finely stranded with end sleeve 1 x 0 5 to 2 5 mm AWG 1 x 20 to 12 Table 8 8 Main conductors of size S0 Ove...

Страница 71: ...verload relay Tool Ø3 0 x 0 5 3RA2908 1A Solid and stranded 2 x 0 5 to 2 5 mm Finely stranded without end sleeve 2 x 0 5 to 2 5 mm Finely stranded with end sleeve 2 x 0 5 to 1 5 mm AWG 2 x 20 to 14 Table 8 10 Removable terminal on the 3RB3 solid state overload relay Removable terminal Tool Ø3 0 x 0 5 3RA2908 1A Solid and stranded 2 x 0 25 to 1 5 mm Finely stranded without end sleeve 2 x 0 25 to 1 ...

Страница 72: ...ination screws SIRIUS devices Tool Pozidriv size 2 Ø 5 to 6 mm Tightening torque 0 8 to 1 2 Nm Ring cable lug 1 d2 min 3 2 mm d3 max 7 5 mm Table 8 12 Main conductors and auxiliary conductors of size S0 with M4 combination screws SIRIUS devices Tool Pozidriv size 2 Ø 5 to 6 mm Tightening torque 2 0 to 2 5 Nm Ring cable lug 1 d2 min 4 3 mm d3 max 12 2 mm 1 The following ring cable lugs are approved...

Страница 73: ...7420A RS AA 002 73 A shrink on sleeve must be used to insulate ring cable lugs without an insulating sleeve The following conditions must be met Application temperature 55 C to 155 C UL 224 approved Flame protected DANGER Hazardous voltage Will cause death or serious injury Only use approved ring cable lugs to meet the required clearances and creepage distances ...

Страница 74: ...Connection 8 4 Connection cross sections SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 74 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 75: ...s 3RU21 thermal overload relays and 3RB30 3RB31 solid state overload relays are set to the rated motor current with a rotary knob Note The overload relays may only be set between the upper and lower setting marks on the scale A setting below or above the setting scale is not permissible The figure below shows how to set the rated motor current based on the example of the 3RU21 thermal overload rel...

Страница 76: ...class ground fault detection 3RB31 Key statement In the case of 3RB31 solid state overload relays it is also possible to select the tripping class CLASS 5E 10E 20E or 30E via a second rotary knob using a screwdriver and activate or deactivate internal ground fault monitoring There are 8 possible settings CLASS 5E 10E 20E and 30E without ground fault detection STANDARD CLASS 5E 10E 20E and 30E with...

Страница 77: ... the machine will start up immediately People may be injured if they stay in the danger area of the machine Make sure that the motor does not start up again following an overload trip until a new switch on command has been issued e g via an additional ON button and that no one is in the machine danger zone at the time of restarting Recovery time following overload release This time gives the load ...

Страница 78: ...overload relays automatic and manual resetting is selected by pressing and turning the blue button RESET button The figure below shows how to switch between automatic and manual reset on the 3RU21 thermal overload relay size S0 Table 9 1 Switching between manual and automatic on the 3RU21 thermal overload relay Step Instructions Figure 1 Press the blue RESET button down with a screwdriver 2 Turn t...

Страница 79: ...emented on 3RB31 solid state overload relays by applying a 24 V DC voltage at terminals A3 and A4 which actuates an internal relay To ensure that the internal relay will reliably switch the voltage needs to be applied for at least 200 ms During switching the relay s current consumption amounts to as much as 200 mA for up to 20 ms after which it drops to below 10 mA Table 9 2 Switching between manu...

Страница 80: ...de The tripping of the relay can be simulated by moving the slide with a screwdriver This simulation process opens the NC contact and closes the NO contact thereby checking that the auxiliary circuit has been wired to the overload relay correctly Figure 9 2 Executing a device test Resetting If the overload relay has been set to automatic RESET the overload relay is automatically reset when the TES...

Страница 81: ... to pressing the TEST button Tripping within CLASS 5E 3 min 30 s CLASS 10E 5 min 1 min CLASS 20E 10 mins 2 mins CLASS 30E 15 mins 3 min Note The TEST button must be held down throughout the test In this case the motor current must be 80 of the current setting Ie and equal to at least the value of the lower current setting The switch position indicator slide can be used to test the auxiliary contac...

Страница 82: ...tact NO 97 98 for the tripped signal and an NC contact NC 95 96 for disconnecting the contactor The auxiliary contacts have high contact reliability this makes them suitable for PLCs Furthermore the high switching capacity facilitates direct switching of the contactor coil The table below shows how the auxiliary contacts respond when the TEST STOP 3RU21 only and RESET buttons are pressed READY TES...

Страница 83: ...sily and without the need for tools Accessories 3RU21 3RB30 3RB31 Terminal support for stand alone assembly Release slide mechanical remote RESET compatible for use with all sizes Cable release mechanical remote RESET compatible for use with all sizes Module for electrical remote RESET compatible for use with all sizes Integrated electrical remote RESET 24 V DC Terminal cover for ring cable lug co...

Страница 84: ...ms In size S2 the terminal support for stand alone assembly is available in screw type connection technology A terminal support can be mounted on the thermal overload relay as well as on the solid state overload relay 10 2 2 Mounting Disassembly The terminal supports can be snapped onto 35 mm DIN rails according to DIN EN 60715 They can also be screw mounted The figures below show how the terminal...

Страница 85: ... A5E03656507420A RS AA 002 85 Table 10 2 Mounting the terminal support spring loaded connection system size S0 Step Instructions Figure 1 Insert the contacts a into the central opening of the main conductor terminals on the terminal support with the contacts flush to the right Make sure that the guide tabs are inserted into the designated slots on the terminal support ...

Страница 86: ...mal overload relays SIRIUS 3RB3 solid state overload relays 86 Manual 09 2014 A5E03656507420A RS AA 002 Table 10 3 Mounting the terminal support screw type connection system size S2 Step Instructions Figure 1 2 Guide the overload relay into the terminal support from below with a swivel movement ...

Страница 87: ...ip on the underside of the terminal support 3 Release the terminal support from the overload relay with a screwdriver only on size S00 and S0 devices 4 Pull the overload relay down and away from the terminal support Table 10 5 Removing the terminal support spring loaded connection system size S0 Step Instructions Figure 1 Release the overload relay by pushing down the clip on the underside of the ...

Страница 88: ...rt for stand alone assembly is removed based on the example of a 3RU2136 thermal overload relay size S2 Table 10 6 Removing the terminal support screw type connection system size S2 Step Instructions Figure 1 Release the terminal support by pushing down the clip on the underside of the terminal support using a screwdriver 2 Remove the terminal support with the mounted overload relay from the mount...

Страница 89: ...e overload relays Manual 09 2014 A5E03656507420A RS AA 002 89 Step Instructions Figure 3 Undo the screws on the main conductor terminals using a screwdriver 4 Release the overload relay by pushing down the clip on the rear of the terminal support 5 Pull the overload relay forward and away from the terminal support with a swivel movement ...

Страница 90: ... 90 Cable release with holder for built in overload relays which are hard to reach Page 92 10 3 1 Release slide 10 3 1 1 Description Release slide There is one release slide for thermal overload relays and one for solid state overload relays both are compatible for use with all sizes The release slide with holder and former is used to activate the RESET from the control cabinet door it is shortene...

Страница 91: ...al overload relay Prerequisite Before the release slide can be mounted the release slide and the optional extension plunger have to be shortened to the required length Table 10 7 Mounting the release slide Step Instructions Figure 1 Attach the hook on the release slide to the designated opening on the overload relay 2 Fold the module up so that the locking latch snaps into the overload relay 3 Att...

Страница 92: ...10 8 Disassembling the release slide Step Instructions Figure 1 Press the locking latch down 2 Tilt the module toward you and take it off the overload relay 10 3 2 Cable release 10 3 2 1 Description Cable release compatible for use with all sizes There is one cable release with holder for built in overload relays which are hard to reach for thermal overload relays and another for solid state relay...

Страница 93: ...igure 1 Attach the hook on the release slide to the designated opening on the overload relay 2 Fold the module up so that the locking latch snaps into the overload relay 3 4 Fit the actuating element into the front cover and attach the sleeve to the actuating element 5 Secure the actuating element with the spring lock washer 6 7 Insert the cable release into the appropriate opening and turn to tig...

Страница 94: ...anual 09 2014 A5E03656507420A RS AA 002 Disassembly The figure below shows how to disassemble the holder for the cable release based on the example of the 3RU21 thermal overload relay Table 10 10 Cable release disassembly Step Instructions Figure 1 Press the locking latch down 2 Tilt the module toward you and take it off the overload relay ...

Страница 95: ...The module s coil is dimensioned for an operating duration of 0 2 s to 4 s maintained contact operation is not permissible 10 4 2 Connecting the remote RESET Connection The screw connections on the terminals of the electrical remote RESET module have the same format as the screw connections on the auxiliary contacts of the 3RU21 overload relay Table 10 11 Connection data for the remote RESET Opera...

Страница 96: ...mple of size S0 Table 10 12 Mounting the electrical remote RESET module on the thermal overload relay Step Operating instruction Figure 1 Attach the hook to the designated opening 2 Fold the module up so that the locking latch snaps into the overload relay Disassembly Table 10 13 Disassembling the electrical remote RESET module from the thermal overload relay Step Operating instruction Figure 1 Pr...

Страница 97: ...alable cover for thermal overload relays and one for solid state relays both are compatible for use with all sizes The 3RV2908 0P cover can be used as an accessory for 3RU2 thermal overload relays and 3RV2 motor starter protectors circuit breakers acc to UL The sealable cover can be used to protect the rotary button for setting the rated motor current and the CO contact for the tripping classes 3R...

Страница 98: ...elays 98 Manual 09 2014 A5E03656507420A RS AA 002 10 5 2 Mounting Table 10 14 Mounting the sealable cover on the 3RU21 overload relay Step Operating instruction Figure 1 2 Attach the hooks on the cover to the openings on the overload relay and fold the cover down 3 Seal the cover to secure it against unauthorized removal ...

Страница 99: ... on the cover to the openings on the overload relay and fold the cover up 3 Seal the cover to secure it against unauthorized removal 10 6 Covers for ring cable lug connections 10 6 1 Description Function Covers must be fitted to thermal overload relays with ring cable lug connection system to achieve finger safety according to IEC 61140 Both line side and output side covers are available Additiona...

Страница 100: ...Accessories 10 6 Covers for ring cable lug connections SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 100 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 101: ...0A RS AA 002 101 Technical data 11 11 1 Product data sheet You will find the current SIRIUS Innovations product data sheets in the Service Support Portal http support automation siemens com Enter the article number of the device in the Product Name or Part Number field and confirm your selection by clicking on the Go button ...

Страница 102: ...overload relays 102 Manual 09 2014 A5E03656507420A RS AA 002 On the Product Support page select the Technical CAx data tab Select the Technical Data option box and a list of the contents of the product data sheet will appear Technical data Approvals Certificates Dimension drawing Wiring diagram Internal circuit diagram ...

Страница 103: ...te overload relays Manual 09 2014 A5E03656507420A RS AA 002 103 Using the Create PDF button on the right hand side you have the option of downloading your selection in a PDF file All information on the product you have chosen is at your disposal free of charge around the clock and you always get the current version ...

Страница 104: ...lays Feature Description 3RU21 3RB30 3RB31 Sizes Are matched to the dimensions connections and technical features of the other devices in the SIRIUS modular system contactors etc Permit the mounting of slim line and compact load feeders in widths of 45 mm S00 45 mm S0 and 55 mm S2 Make configuration easier S00 S0 S2 S00 S0 S2 Overlapping current range Allows straightforward and consistent configur...

Страница 105: ...phase asymmetry Provides optimum current dependent protection of loads against impermissibly high temperature rise due to phase asymmetry Tripping in the event of phase failure Minimizes the temperature rise of the three phase motor in the event of a phase failure Protection of single phase loads Enables single phase loads to be protected Tripping in the event of ground fault by means of internal ...

Страница 106: ... 1 NC contact Enable shutdown of the connected contactor to protect the load 1 Via a separate module 2 Only on the 3RB31 electrically with 24 V DC 11 2 4 Configuration of load feeders Table 11 4 Configuration of load feeders with 3RU21 and 3RB30 3RB31 Feature Description 3RU21 3RB30 3RB31 Short circuit proof up to 100 kA at 690 V in conjunction with the appropriate fuses or the appropriate motor s...

Страница 107: ...ASS 5E Enables solutions for motors which start up very quickly and require special protection measures 3RB31 only Tripping class CLASS 10E Enable solutions for heavy duty starting Low power loss Reduces power consumption power consumption is up to 98 less than with thermal overload relays and thus energy costs Minimizes the temperature rise of the contactor and the control cabinet in some cases t...

Страница 108: ... Yes Overload warning No Resetting and recovery Reset options following tripping Manual automatic and remote RESET1 Recovery time Depending on the level of the tripping current and the tripping characteristic curve Equipment Display of operating state on device Yes by means of TEST function switch position indicator slide TEST function Yes RESET key Yes STOP button Yes ATEX Suitable for overload p...

Страница 109: ...minals finger safe Ring cable lug connection finger safe only with optional terminal covers Shock resistance with sine acc to IEC 60068 2 27 15g 11 ms 2 Resistance to extreme climates Humidity 90 Dimensions See Dimension drawings for 3RU21 thermal overload relays Page 151 Installation altitude above sea level m Up to 2 000 above this please contact us Mounting position See Minimum clearances and m...

Страница 110: ...frequency range up to 400 Hz Current setting A 0 11 to 0 16 to 11 to 16 1 8 to 2 5 to 34 to 40 Power loss per device max W 4 1 6 3 5 1 7 5 Short circuit protection With fuse without contactor See Selection and ordering data in Catalog IC 10 SIRIUS With fuse and contactor See the configuration guide titled Configuring SIRIUS Innovations Selection data for load feeders in fuseless and fused designs ...

Страница 111: ...g torque Nm 0 8 1 2 2 2 5 Conductor cross sections min max 1 wire or 2 wire connection possible Solid mm2 2 x 0 5 to 1 5 1 2 x 0 75 to 2 5 1 max 2 x 4 2 x 1 to 2 5 1 2 x 2 5 to 10 1 Finely stranded with end sleeve DIN 46228 Part 1 mm2 2 x 0 5 to 1 5 1 2 x 0 75 to 2 5 2 2 x 1 to 2 5 1 2 x 2 5 to 6 1 max 1 x 10 AWG cables solid or stranded AWG 2 x 20 to 16 1 2 x 18 to 14 1 2 x 12 2 x 16 to 12 1 2 x ...

Страница 112: ...3 2 max 12 2 DIN 46234 without insulating sleeve DIN 46225 without insulating sleeve DIN 46237 with insulating sleeve JIS C2805 type R without insulating sleeve JIS C2805 type RAV with insulating sleeve JIS C2805 type RAP with insulating sleeve 1 If two different conductor cross sections are being connected to one clamping point both cross sections must be located in the range indicated If identic...

Страница 113: ...uxiliary contacts Assignment 1 NO for the tripped signal 1 NC for disconnecting the contactor Rated insulation voltage Ui pollution degree 3 V 690 Rated impulse withstand voltage Uimp kV 6 Contact rating of the auxiliary contacts NC with alternating current AC 14 AC 15 rated operating current Ie at Ue 24 V A 4 120 V A 4 125 V A 4 230 V A 3 400 V A 2 600 V A 0 75 690 V A 0 75 NO with alternating cu...

Страница 114: ...circuit Switching capacity B600 R300 1 Up to Ik 0 5 kA U 260 V 11 3 1 5 Auxiliary circuit connections Technical data for auxiliary circuit connection 3RU2116 3RU2126 overload relays Table 11 10 Technical data for auxiliary circuit connection 3RU2116 3RU2126 overload relays Type 3RU2116 3RU2126 Size S00 S0 Width 45 mm 45 mm Connection type Screw connection Connection screw M3 Pozidriv size 2 Operat...

Страница 115: ...1 5 AWG cables solid or stranded AWG 2 x 20 to 14 Connection type Ring cable lug connection Connection screw M3 Pozidriv size 2 Operating tool mm 5 6 Specified tightening torque Nm 0 8 1 2 Ring cable lugs that can be used mm d2 2 min 3 2 d3 2 max 7 5 DIN 46234 without insulating sleeve DIN 46225 without insulating sleeve DIN 46237 with insulating sleeve JIS C2805 type R without insulating sleeve J...

Страница 116: ...bined company specific S2 Product component RESET button Yes STOP pushbutton Yes trip indicator Yes Product function removable terminal for auxiliary and control circuit No Product component auxiliary switch Yes Installation altitude at a height over sea level maximum m 2000 Ambient temperature during transport C 55 80 during storage C 55 80 during operating C 40 70 Design of display for switching...

Страница 117: ...ignation according to DIN EN 81346 2 F maximum permissible voltage for safe isolation in networks with grounded star point between main and auxiliary circuit V 690 in networks with grounded star point between main and auxiliary circuit V 690 in networks with grounded star point between auxiliary and auxiliary circuit 415 in networks with non grounded star point between auxiliary and auxiliary circ...

Страница 118: ...Derating factor for rated value of the operating current up to 70 C interior cabinet temperature 0 87 11 3 2 3 Main circuit terminals Technical data for main circuit connection 3RU2136 overload relays 3RU2136 Arrangement of electrical connectors for main current circuit Top and bottom Design of the electrical connection for main current circuit screw type terminals Type of the connectable conducto...

Страница 119: ...on Voltage type for auxiliary and control circuit AC DC Design of the fuse link for short circuit protection of the auxiliary switch required fuse gL gG 6 A quick 10 A Design of the auxiliary switch integrated Number of changeover contacts for auxiliary contacts 0 Operating current of the auxiliary contacts at AC 15 at 24 V A 3 at 110 V 3 at 120 V 3 at 125 V 3 at 230 V 2 at 400 V 1 at 600 V 0 75 a...

Страница 120: ...ing 2x 0 5 1 5 mm 2x 0 75 2 5 mm 2x 0 5 1 5 mm for AWG conductors 2x 20 16 2x 18 14 2x 20 14 Tightening torque for auxiliary contacts with screw type terminals N m 0 8 1 2 Design of the thread of the connection screw of the auxiliary and control pins M3 11 3 2 6 Protection function Technical data for the protection function 3RU2136 overload relays 3RU2136 Product function overload protection Yes P...

Страница 121: ... alone installation mounting position any Depth mm 105 117 Height mm 90 105 Width mm 55 Distance to be maintained conductive elements downwards mm 10 backwards mm 0 sidewards mm 10 forwards mm 10 upwards mm 10 Distance to be maintained to earthed part downwards mm 10 backwards mm 0 sidewards mm 10 forwards mm 10 upwards mm 10 11 3 2 9 UL CSA rated data Technical data UL CSA rated data 3RU2136 over...

Страница 122: ...gG 40 A CLASS 10 8 3RU2136 4B 14 20 Fuse gL gG 50 A CLASS 10 8 3RU2136 4D 18 25 fuse gL gG 63 A CLASS 10 8 3RU2136 4E 22 32 Fuse gL gG 80 A CLASS 10 11 3RU2136 4F 28 40 Fuse gL gG 80 A CLASS 10 11 3RU2136 4G 36 45 fuse gL gG 100 A CLASS 10 11 3RU2136 4H 40 50 fuse gL gG 100 A CLASS 10 11 3RU2136 4Q 47 57 fuse gL gG 100 A CLASS 10 11 3RU2136 4J 54 65 fuse gL gG 125 A CLASS 10 12 3RU2136 4K 62 73 fu...

Страница 123: ...t of Overload phase failure and phase asymmetry ground fault 3RB31 only Tripping class acc to IEC EN 60947 4 1 CLASS 3RB30 10E 20E 3RB31 5E 10E 20E and 30E adjustable Phase loss sensitivity Yes Overload warning No Resetting and recovery Reset options following tripping Manual automatic and remote RESET depending on the version Recovery time Automatic RESET min approx 3 min Manual RESET min Immedia...

Страница 124: ...r an ambient temperature of 40 C SIL SIL 1 HFT 0 λsafe 1 h 440 10 9 λDD 1 h 105 10 9 λDU 1 h 296 10 9 SFF 65 DC 26 MTBF Years 130 PFDavg for 36 months 1 0 10 2 Architecture 1001 T1 value repeat test DIN EN 60079 17 Section 4 4 Tlifetime Years 20 Ambient temperatures Storage transport C 40 80 Operation C 25 60 Temperature compensation C 60 Permissible rated operating current At internal control cab...

Страница 125: ... 61000 4 6 V 10 Electrostatic discharge acc to IEC 61000 4 2 corresponds to severity 3 kV 8 air discharge 6 contact discharge Field related interference suppression to IEC 61000 4 3 corresponds to severity 3 V m 10 Electromagnetic interference emission acc to IEC 60947 1 CISPR 11 environment B residential area Resistance to extreme climates Humidity 95 Dimensions See Dimension drawings dimensions ...

Страница 126: ...tand voltage Uimp kV 6 Rated operating voltage Ue V 690 Type of current DC current No AC current Yes 50 60 Hz 5 Current setting A 0 1 to 0 4 to 4 to 16 0 1 to 0 4 to 10 to 40 Power loss per device max W 0 05 0 2 Short circuit protection With fuse without contactor See Selection and ordering data in Catalog IC 10 SIRIUS With fuse and contactor See the configuration guide titled Configuring SIRIUS I...

Страница 127: ...lid mm2 2 x 0 5 to 1 5 1 2 x 0 75 to 2 5 1 2 x 0 5 to 4 1 2 x 1 to 2 5 1 2 x 2 5 to 10 1 Finely stranded with end sleeve mm2 2 x 0 5 to 1 5 1 2 x 0 75 to 2 5 1 2 x 1 to 2 5 1 2 x 2 5 to 6 1 max 1 x 10 AWG cables solid or stranded AWG 2 x 20 to 16 1 2 x 18 to 14 1 2 x 121 2 x 16 to 12 1 2 x 14 to 8 1 Connection type Spring loaded connection Operating tool 3 0 x 0 5 and 3 5 x 0 5 Conductor cross sec...

Страница 128: ...NC contacts 1 Auxiliary contacts Assignment 1 NO for the tripped signal 1 NC for disconnecting the contactor Rated insulation voltage Ui pollution degree 3 V 300 Rated impulse withstand voltage Uimp kV 4 Contact rating of the auxiliary contacts NC with alternating current AC 15 rated operating current Ie at Ue 24 V A 4 120 V A 4 125 V A 4 250 V A 3 NO with alternating current AC15 rated operating ...

Страница 129: ...to sinusoidal fault currents at 50 60 Hz Tripping value IΔ 0 75 x Imotor Operating range I Lower current setting Imotor 3 5 x upper current setting Response time ttrip in steady state condition s 1 Current consumption of the integrated electrical remote RESET 3RB31 only Connection terminals A3 A4 24 V DC max 200 mA for approx 20 ms thereafter 10 mA Protective separation between auxiliary current p...

Страница 130: ...2 3RB312 Size S00 S0 Width 45 mm 45 mm Connection type Screw connection Connection screw Pozidriv size 2 Operating tool 5 6 Tightening torque Nm 0 8 1 2 Conductor cross sections min max 1 wire or 2 wire Solid mm2 1 x 0 5 to 4 2 x 0 5 to 2 5 Finely stranded with end sleeve mm2 1 x 0 5 to 2 5 2 x 0 5 to 1 5 AWG cables solid or stranded AWG 2 x 20 to 14 Connection type Spring loaded connection Operat...

Страница 131: ... can be combined company specific S2 Product component RESET button Yes Product component STOP pushbutton No Product component trip indicator Yes Product function removable terminal for auxiliary and control circuit Yes Product component auxiliary switch Yes Installation altitude at a height over sea level maximum m 2000 Ambient temperature during transport C 40 80 during storage C 40 80 during op...

Страница 132: ...liary circuit V 600 in networks with grounded star point between auxiliary and auxiliary circuit V 300 in networks with non grounded star point between auxiliary and auxiliary circuit V 300 EMC immunity to interference according to IEC 60947 1 corresponds to degree of severity 3 EMC emitted interference according to IEC 60947 1 CISPR 11 environment B residential area Electrostatic discharge accord...

Страница 133: ...ain circuit necessary Operational current for heavy starting CLASS 20 maximum for heavy starting CLASS 30 maximum V V A A 3RB3 3 QB 690 6 000 AC 2 fuse gL gG 160 A 25 25 3RB3 3 QD 690 6 000 AC 2 fuse gL gG 160 A 25 25 3RB3 3 QW 690 6 000 AC 2 fuse gL gG 160 A 25 25 3RB3 3 QX 690 6 000 AC 2 fuse gL gG 160 A 25 25 3RB3 3 UB 690 6 000 AC 2 Fuse gL gG 200 A 50 50 3RB3 3 UD 690 6 000 AC 2 Fuse gL gG 20...

Страница 134: ...uit Top and bottom Design of the electrical connection for main current circuit screw type terminals straight through transformers Type of the connectable conductor cross section for main contacts solid or multi stranded 1x 1 50 mm 2x 1 35 mm finely stranded without conductor final cutting with conductor end processing 1x 1 35 mm 2x 1 25 mm for AWG conductors 2x 18 2 1x 18 1 Tightening torque for ...

Страница 135: ...e for contactor disconnection Number of changeover contacts for auxiliary contacts 0 Voltage type for auxiliary and control circuit AC DC Design of the fuse link for short circuit protection of the auxiliary switch required fuse gL gG 6 A Design of the auxiliary switch integrated Operating current of the auxiliary contacts at AC 15 at 24 V A 4 at 110 V A 4 at 120 V A 4 at 125 V A 4 at 230 V A 3 Op...

Страница 136: ... cross section for auxiliary contacts solid or multi stranded 1x 0 5 4 mm 2x 0 5 2 5 mm 1x 0 25 1 5 mm 2x 0 25 1 5 mm for auxiliary contacts finely stranded without conductor final cutting 1x 0 25 1 5 mm 2x 0 25 1 5 mm for auxiliary contacts finely stranded with conductor end processing 1x 0 5 2 5 mm 2x 0 5 1 5 mm 1x 0 25 1 5 mm 2x 0 25 1 5 mm for AWG conductors for auxiliary contacts 1x 20 14 2x ...

Страница 137: ...ct function overload protection Yes overload warning No phase disturbance recognition Yes short circuit to earth recognition Yes Design of the overload circuit breaker electronic Trip class CLASS 5E 10E 20E and 30E adjustable Type of ground fault protection Sinusoidal fault currents at 50 60 Hz Current response value of the ground fault protection minimum 0 75 x IMotor Working range of the ground ...

Страница 138: ... mounting fixing dimensions 3RB303 3RB313 overload relays 3RB3 3 B 3RB3 3 D 3RB3 3 W 3RB3 3 X Mounting type direct mounting stand alone installation mounting position any Depth mm 104 109 Height mm 99 81 Width mm 55 Distance to be maintained conductive elements downwards mm 10 backwards mm 0 sidewards mm 10 forwards mm 10 upwards mm 10 Distance to be maintained to earthed part downwards mm 10 back...

Страница 139: ... data for UL CSA rated data 3RB303 3RB313 overload relays Operating voltage according to UL 60947 rated value Full load current FLA for 3 phase motor Contact rating designation for auxiliary contacts according to UL at 480 V rated value at 600 V rated value V A A 3RB303 Q 600 25 25 B600 R300 3RB303 U 600 50 50 B600 R300 3RB303 W 600 80 80 B600 R300 3RB313 Q 600 25 25 B300 R300 3RB313 U 600 50 50 B...

Страница 140: ...elease Active power loss total typical initial value final value A A W 3RB303 QW 6 25 0 1 3RB303 QX 6 25 0 1 3RB303 QD 6 25 0 5 3RB303 QB 6 25 0 5 3RB303 UW 12 5 50 0 1 3RB303 UX 12 5 50 0 1 3RB303 UD 12 5 50 1 8 3RB303 UB 12 5 50 1 8 3RB303 WW 20 80 0 2 3RB303 WX 20 80 0 2 3RB303 WD 20 80 4 6 3RB303 WB 20 80 4 6 3RB313 QW 6 25 0 1 3RB313 QX 6 25 0 1 3RB313 QB 6 25 0 5 3RB313 QD 6 25 0 5 3RB313 UW...

Страница 141: ...12 Internal circuit diagrams You can find the internal circuit diagrams for SIRIUS Innovations products online in the image database www siemens com industrial controls bilddb Enter the article number of the device in the Article number field and in the Type of object selection menu on the left hand side select Unit wiring diagram Figure 12 1 Image database ...

Страница 142: ...656507420A RS AA 002 Internal circuit diagrams for 3RU21 3RU2116 B 3RU2116 J Figure 12 2 Thermal overload relay screw type and ring cable lug connection systems S00 3RU2116 C Figure 12 3 Thermal overload relay spring loaded connection system S00 3RU2126 Figure 12 4 Thermal overload relay S0 3RU2136 Figure 12 5 Thermal overload relay S2 ...

Страница 143: ...A RS AA 002 143 Internal circuit diagrams for 3RB30 3RB3016 B Figure 12 6 3RB30 solid state overload relay screw type connection system S00 3RB3016 E Figure 12 7 3RB30 solid state overload relay spring loaded connection system S00 3RB3026 Figure 12 8 3RB30 solid state overload relay S0 3RB3036 Figure 12 9 3RB30 solid state overload relay S2 ...

Страница 144: ...20A RS AA 002 Internal circuit diagrams for 3RB31 3RB3113 B Figure 12 10 3RB31 solid state overload relay screw type connection system S00 3RB3113 E Figure 12 11 3RB31 solid state overload relay spring loaded connection system S00 3RB3123 Figure 12 12 3RB31 solid state overload relay S0 3RB3133 Figure 12 13 3RB31 solid state overload relay S2 ...

Страница 145: ...ion the short circuit is reliably mastered the only differences are in the extent of the damage sustained by the device following a short circuit Type of coordination 1 The load feeder may be non operational after a short circuit has been cleared Damage to the contactor and the overload release is also permissible Type of coordination 2 After short circuit disconnection there must be no damage to ...

Страница 146: ...Types of coordination SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 146 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 147: ...the operating instructions and manuals for any accessories You can download the relevant documentation from the Internet http www siemens com sirius manuals Simply enter the article number of the relevant item into the search field Operating instructions Title Article number SIRIUS thermal overload relay S00 S0 3RU2116 3RU2126 3ZX1012 0RU21 1AA1 SIRIUS thermal overload relay S2 3RU2136 3ZX1012 0RU...

Страница 148: ...ZX1012 0RT20 5AC1 3RF34 solid state switching devices SIRIUS Innovations SIRIUS 3RF34 Solid State Switching Devices http support automation siemens com WW view en 60298187 manual Article number 3ZX1012 0RF34 5AC1 3RW soft starters SIRIUS 3RW30 3RW40 Soft Starters http support automation siemens com WW view en 38752095 manual Article number 3ZX1012 0RW30 1AC1 SIRIUS 3RW44 Soft Starter http support ...

Страница 149: ...l Article number 3ZX1012 0RS14 0AC0 3RA21 22 load feeders SIRIUS Innovations SIRIUS 3RA21 3RA22 Load Feeders http support automation siemens com WW view en 60284351 manual Article number 3ZX1012 0RA21 5AC1 3RA6 compact starters SIRIUS 3RA6 Compact Starter http support automation siemens com WW view en 27865747 manual Article number 3RA6992 0A 3RA28 function modules for mounting on contactors Manua...

Страница 150: ...t information Catalogs and other informative documents can be obtained from the Information Center and Download Center www siemens com industrial controls infomaterial Online ordering system You will find the online ordering system with all the latest data on the ordering and information platform www siemens com industrial controls mall Technical Assistance Siemens supports you with all technical ...

Страница 151: ...20A RS AA 002 151 Dimension drawings dimensions in mm C Note All dimensions are specified in mm C 1 Dimension drawings for 3RU21 thermal overload relays 3RU2116 B0 S00 screw connection contactor mounting Figure C 1 3RU2116 B0 3RU2116 4 B1 S00 screw connection mounting on stand alone assembly support Figure C 2 3RU2116 4 B1 ...

Страница 152: ...ions SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 152 Manual 09 2014 A5E03656507420A RS AA 002 3RU2116 C0 S00 spring loaded connection contactor mounting Figure C 3 3RU2116 C0 3RU2116 C1 S00 spring loaded connection mounting on stand alone assembly support Figure C 4 3RU2116 C1 ...

Страница 153: ... 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 153 3RU2126 B0 S0 screw connection contactor mounting a AC 92 DC UC 102 b AC 34 DC UC 44 Figure C 5 3RU2126 B0 3RU2126 4 B1 S0 screw connection mounting on stand alone assembly support Figure C 6 3RU2126 4 B1 ...

Страница 154: ...ermal overload relays SIRIUS 3RB3 solid state overload relays 154 Manual 09 2014 A5E03656507420A RS AA 002 3RU2126 C0 S0 spring loaded connection contactor mounting a AC 93 DC UC 103 b AC 76 DC UC 86 Figure C 7 3RU2126 C0 3RU2126 4 C1 S0 spring loaded connection mounting on stand alone assembly support Figure C 8 3RU2126 4 C1 ...

Страница 155: ...ons SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 155 3RU2136 B0 S2 screw connection contactor mounting Figure C 9 3RU2136 B0 3RU2136 B1 S2 screw connection mounting on stand alone assembly support Figure C 10 3RU2136 B1 and 3RU2936 3AA01 ...

Страница 156: ...US 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 156 Manual 09 2014 A5E03656507420A RS AA 002 3RU2136 D0 S2 spring loaded connection contactor mounting Figure C 11 3RU2136 D0 3RU2136 D1 S2 spring loaded connection mounting on stand alone assembly support Figure C 12 3RU2136 D1 and 3RU2936 3AA01 ...

Страница 157: ...load relays Manual 09 2014 A5E03656507420A RS AA 002 157 C 2 Dimension drawings for 3RB30 3RB31 solid state overload relays 3RB3 1 B0 S00 screw connection contactor mounting Figure C 13 3RB3 1 B0 3RB3 1 B0 S00 screw connection mounting on stand alone assembly support Figure C 14 3RB3 1 B0 and 3RU2916 3AA01 3RB3 1 E0 S00 spring loaded connection contactor mounting Figure C 15 3RB3 1 E0 ...

Страница 158: ...e overload relays 158 Manual 09 2014 A5E03656507420A RS AA 002 3RB3 1 E0 S00 spring loaded connection mounting on stand alone assembly support Figure C 16 3RB3 1 E0 and 3RU2916 3AC01 3RB3 2 B0 S0 screw connection contactor mounting a AC 87 DC UC 97 Figure C 17 3RB3 2 B0 3RB3 2 B0 S0 screw connection mounting on stand alone assembly support Figure C 18 3RB3 2 B0 and 3RU2926 3AA01 ...

Страница 159: ...rmal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 159 3RB3 2 E0 S0 spring loaded connection contactor mounting a AC 93 DC UC 103 b AC 88 DC UC 98 Figure C 19 3RB3 2 E0 3RB3 2 E0 S0 spring loaded connection mounting on stand alone assembly support Figure C 20 3RB3 2 E0 and 3RU2926 3AC01 ...

Страница 160: ...nnovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 160 Manual 09 2014 A5E03656507420A RS AA 002 3RB3 3 B0 S2 screw connection contactor mounting Figure C 21 3RB3 3 B0 3RB3 3 B0 S2 screw connection mounting on stand alone assembly support Figure C 22 3RB3 3 B0 and 3RU2936 3AA01 ...

Страница 161: ...ns SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 161 3RB3 3 D0 S2 spring loaded connection contactor mounting Figure C 23 3RB3 3 D0 3RB3 3 D0 S2 spring loaded connection mounting on stand alone assembly support Figure C 24 3RB3 3 D0 and 3RU2936 3AA01 ...

Страница 162: ...s for 3RB30 3RB31 solid state overload relays SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 162 Manual 09 2014 A5E03656507420A RS AA 002 3RB3 3 W S2 screw connection through hole technology Figure C 25 3RB3 3 W ...

Страница 163: ...contactors drilling plan SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 163 3RB3 3 X S2 spring loaded connection through hole technology Figure C 26 3RB3 3 X ...

Страница 164: ...elays 164 Manual 09 2014 A5E03656507420A RS AA 002 C 3 3RT2 contactors drilling plan Drilling plans for 3RT2 1 1 3RT2 1 4 contactors Figure C 27 Drilling plan for contactors with screw type connections and ring cable lug connections size S00 Drilling plan for 3RT2 1 2 contactors Figure C 28 Drilling plan for contactors with spring loaded connections size S00 ...

Страница 165: ...3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 165 Drilling plan for 3RT2 2 contactors Figure C 29 Drilling plan for 3RT2 2 contactors size S0 Drilling plan for 3RT2 3 contactors Figure C 30 Drilling plan for 3RT2 3 contactors size S2 ...

Страница 166: ... assembly supports SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 166 Manual 09 2014 A5E03656507420A RS AA 002 C 4 Dimension drawings and drilling plan for 3RU29 6 stand alone assembly supports 3RU2916 3AA01 S00 screw connection Figure C 31 3RU2916 3AA01 ...

Страница 167: ...drilling plan for 3RU29 6 stand alone assembly supports SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 167 3RU2916 3AC01 S00 spring loaded connection Figure C 32 3RU2916 3AC01 ...

Страница 168: ...nd alone assembly supports SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 168 Manual 09 2014 A5E03656507420A RS AA 002 3RU2926 3AA01 S0 screw connection Figure C 33 3RU2926 3AA01 3RU2926 3AC01 S0 spring loaded connection Figure C 34 3RU2926 3AC01 ...

Страница 169: ... and drilling plan for 3RU29 6 stand alone assembly supports SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays Manual 09 2014 A5E03656507420A RS AA 002 169 3RU2936 3AA01 S2 screw connection Figure C 35 3RU2936 3AA01 ...

Страница 170: ...s in mm C 4 Dimension drawings and drilling plan for 3RU29 6 stand alone assembly supports SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 170 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 171: ...eading this manual If so please use this form to tell us about them We welcome comments and suggestions for improvement Fax response From please complete To SIEMENS AG I IA CE MK ST 3 92220 Amberg Germany Name Company Department Address _________________________________________________________________________________ Fax 49 0 9621 80 3337 Manual title Table D 1 Errors comments and suggestions for ...

Страница 172: ...Correction sheet SIRIUS Innovations SIRIUS 3RU2 thermal overload relays SIRIUS 3RB3 solid state overload relays 172 Manual 09 2014 A5E03656507420A RS AA 002 ...

Страница 173: ...ease Overload relay 92 93 Coil terminal Overload relay 65 Connection systems Overload relay 20 65 Contactor assemblies for star delta wye delta start Overload relay 43 53 Correction sheet 171 Corrections 16 Cover for ring cable lug Overload relay 99 D DC loads Overload relay 37 Derating Overload relay 58 Device versions Overload relay 21 Disposal 16 E Equipment features 3RB3016 solid state overloa...

Страница 174: ...onnection system 67 Sealable cover Overload relay 97 98 Setting ground fault detection Overload relay 76 Setting the tripping class Overload relay 76 Short circuit protection Overload relay 55 Single phase load Overload relay 37 SIRIUS Innovations system configurator 49 Spring loaded connection system 70 Standards Overload relay 17 T Technical Assistance 16 Terminal designations Overload relay 66 ...

Страница 175: ......

Страница 176: ...com sirius infomaterial Newsletter always up to date www siemens com sirius newsletter E Business in the Industry Mall www siemens com sirius mall Online Support www siemens com sirius support Contact for all technical information Technical Assistance Tel 49 911 895 5900 e mail technical assistance siemens com www siemens com sirius technical assistance Industrial Controls SIRIUS www siemens com a...

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