Siemens 3VA1 100 A User manual

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

Siemens AG
Division Energy Management
Postfach 32 20
91050 ERLANGEN
GERMANY
Order number: 3ZW1012-0VA10-0AC1
Ⓟ05/2015 Subject to change
Copyright © Siemens AG 2014.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury
will
result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury
may
result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may 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:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
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All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02 5
Table of contents
1 Introduction................................................................................................................................. 11
1.1 About this documentation .................................................................................................. 11
1.2 Product-specific information............................................................................................... 11
1.2.1 Target readers................................................................................................................... 11
1.2.2 Technical Support ............................................................................................................. 12
1.2.3 Reference documents ....................................................................................................... 12
2 Description ................................................................................................................................. 15
2.1 Overview - applications and portfolio ................................................................................. 15
2.1.1 Applications and possible uses.......................................................................................... 15
2.1.2 Portfolio............................................................................................................................. 17
2.1.3 Application examples......................................................................................................... 22
2.1.4 Detailed information about applications and possible uses................................................. 24
2.1.5 Technical specifications..................................................................................................... 25
2.1.6 Molded case circuit breakers and accessories in the system.............................................. 28
2.2 Ergonomic design.............................................................................................................. 32
2.2.1 The right circuit breaker for any installation conditions ....................................................... 33
2.2.2 Ergonomic design of circuit breakers, handles and control elements.................................. 36
2.2.3 Wide range of accessories ................................................................................................ 39
2.2.4 Connection technology ...................................................................................................... 41
2.3 Technical details................................................................................................................ 43
2.3.1 Circuit breaker identification............................................................................................... 44
2.3.2 Operation .......................................................................................................................... 50
2.3.3 Design and components - 3VA1 ........................................................................................ 51
2.3.4 Design and components - 3VA2 ........................................................................................ 52
2.3.5 Current limitation ............................................................................................................... 53
2.3.6 Breaking capacity.............................................................................................................. 54
2.4 Selectivity.......................................................................................................................... 56
2.5 Standards and guidelines .................................................................................................. 59
2.5.1 Compliance with standards................................................................................................ 59
2.5.2 Electromagnetic compatibility ............................................................................................ 60
2.5.3 Certificates ........................................................................................................................ 60
2.5.4 Ambient conditions ............................................................................................................ 60
2.5.5 Permissible mounting positions.......................................................................................... 62
2.5.6 Safety clearances.............................................................................................................. 64
2.5.7 Degrees of protection ........................................................................................................ 68
2.5.8 Environmental protection................................................................................................... 68

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6Manual, 04/2015, A5E03603177010-02
2.6 Protection system...............................................................................................................69
2.6.1 Description of functions ......................................................................................................70
2.6.2 Characteristic curves..........................................................................................................72
2.6.3 Guide to setting the tripping characteristic ..........................................................................74
2.6.4 Overload protection (L).......................................................................................................76
2.6.5 Short-time delayed short-circuit protection (S) ....................................................................77
2.6.6 Instantaneous short-circuit protection (I) .............................................................................77
2.6.7 Ground-fault protection (G).................................................................................................77
2.6.8 Neutral conductor protection (N).........................................................................................78
2.6.9 Zone-selective interlocking ZSI...........................................................................................81
2.7 Thermal-magnetic trip unit..................................................................................................84
2.7.1 Thermal trip unit (L)............................................................................................................84
2.7.2 Magnetic trip unit with short-circuit protection (I) .................................................................84
2.7.3 Application cases and trip unit types...................................................................................85
2.8 Electronic trip unit...............................................................................................................86
2.8.1 Connections .......................................................................................................................87
2.8.2 Protection functions............................................................................................................88
2.8.3 Operator controls ...............................................................................................................90
2.8.4 Load acceptance and load shedding - load management..................................................100
2.8.5 Measuring with a Rogowski coil........................................................................................101
3 Applications...............................................................................................................................105
3.1 Line protection applications of 3VA molded case circuit breakers......................................105
3.1.1 Variants............................................................................................................................106
3.1.1.1 Thermal-magnetic trip units ..............................................................................................106
3.1.1.2 Electronic trip units...........................................................................................................110
3.1.2 Overview of 3VA molded case circuit breakers in line protection applications....................124
3.2 Use of the 3VA1 breaker as a switch disconnector ...........................................................126
3.2.1 Overview of 3VA1 as switch disconnectors.......................................................................130
3.2.2 Upstream protection of switch disconnectors ....................................................................130
3.3 DC network applications of the 3VA molded case circuit breaker ......................................132
3.3.1 Introduction ......................................................................................................................132
3.3.2 Variants............................................................................................................................133
3.3.3 Breaking capacity with direct current.................................................................................134
3.3.4 Recommended circuit configurations for DC systems .......................................................135
3.4 400 Hz network applications of 3VA molded case circuit breakers ....................................136
3.5 IT system applications of 3VA molded case circuit breakers .............................................138
3.5.1 Selection criteria for 3VA molded case circuit breakers.....................................................138
3.5.2 Fault situation...................................................................................................................139

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4 Accessories .............................................................................................................................. 141
4.1 Overview of accessories for 3VA molded case circuit breakers ........................................ 141
4.1.1 Accessories groups ......................................................................................................... 141
4.1.2 Possible combinations of of accessories.......................................................................... 142
4.2 Internal accessories......................................................................................................... 146
4.2.1 Mounting locations on 3VA molded case circuit breakers................................................. 146
4.2.2 Auxiliary and alarm switches............................................................................................ 150
4.2.3 Contact sequence diagrams ............................................................................................ 154
4.2.4 Technical specifications of auxiliary and alarm switches .................................................. 156
4.2.5 Auxiliary releases ............................................................................................................ 158
4.2.6 Time-delay devices for undervoltage releases ................................................................. 164
4.2.7 COM060 communication module..................................................................................... 164
4.3 Connection system.......................................................................................................... 165
4.3.1 General information about cables and busbars ................................................................ 165
4.3.2 Portfolio of connection components for 3VA molded case circuit breakers ....................... 169
4.3.2.1 General overview ............................................................................................................ 169
4.3.2.2 Front cable connection .................................................................................................... 173
4.3.2.3 Front busbar and cable lug connections........................................................................... 181
4.3.2.4 Rear busbar and cable lug connections ........................................................................... 186
4.3.3 Further connection accessories ....................................................................................... 191
4.3.3.1 Insulating equipment ....................................................................................................... 191
4.3.3.2 Auxiliary conductor terminal............................................................................................. 199
4.4 Plug-in and draw-out technology...................................................................................... 201
4.4.1 Introduction ..................................................................................................................... 201
4.4.2 Overview of variants / products........................................................................................ 205
4.4.3 General information......................................................................................................... 206
4.4.4 Information about installation, built-on and built-in components........................................ 207
4.4.5 Plug-in technology........................................................................................................... 208
4.4.5.1 Product description.......................................................................................................... 208
4.4.5.2 Combination with other accessories................................................................................. 214
4.4.6 Draw-out technology........................................................................................................ 215
4.4.6.1 Product description.......................................................................................................... 215
4.4.6.2 Combination with other accessories................................................................................. 224
4.4.7 Accessories for plug-in and draw-out units....................................................................... 225
4.4.7.1 Description of individual product variants ......................................................................... 225
4.4.7.2 Overview of technical specifications................................................................................. 236
4.4.7.3 Combination with other accessories................................................................................. 237
4.5 Manual operators ............................................................................................................ 238
4.5.1 Opening, closing and resetting the 3VA molded case circuit breaker................................ 239
4.5.2 Front mounted rotary operator ......................................................................................... 241
4.5.3 Door mounted rotary operator.......................................................................................... 244
4.5.4 Side wall mounted rotary operator ................................................................................... 249
4.5.5 Locking and interlocking for manual operators ................................................................. 251
4.5.5.1 Locking by the handle...................................................................................................... 251
4.5.5.2 Locking and interlocking by the rotary operator................................................................ 253
4.5.5.3 Mutual interlocking of 3VA molded case circuit breakers by means of Bowden cables...... 256
4.5.6 Degree of protection........................................................................................................ 258
4.5.7 Accessories..................................................................................................................... 259

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4.6 Motor operators................................................................................................................260
4.6.1 Motor operator MO320 .....................................................................................................260
4.6.1.1 MANUAL, AUTO and LOCK modes..................................................................................262
4.6.1.2 Opening, closing and resetting the 3VA molded case circuit breaker.................................263
4.6.1.3 Faults, causes of faults and rectification of faults ..............................................................267
4.6.2 Technical specifications....................................................................................................268
4.7 Locking and interlocking ...................................................................................................269
4.7.1 General information..........................................................................................................269
4.7.1.1 Locking ............................................................................................................................269
4.7.1.2 Interlocking.......................................................................................................................270
4.7.2 Locking ............................................................................................................................272
4.7.2.1 Padlock device for the handle...........................................................................................272
4.7.2.2 Cylinder locks for locking the 3VA molded case circuit breaker .........................................273
4.7.3 Front interlocking..............................................................................................................277
4.7.3.1 Cylinder locks for implementing interlocks between multiple 3VA molded case circuit
breakers...........................................................................................................................277
4.7.3.2 Sliding bar with Bowden cable: Modules for sliding bar with Bowden cable .......................282
4.7.3.3 Sliding bar ........................................................................................................................285
4.7.4 Rear interlock...................................................................................................................288
4.8 Residual current devices ..................................................................................................293
4.8.1 Portfolio............................................................................................................................293
4.8.1.1 Possible combinations of residual current devices and 3VA circuit breakers .....................299
4.8.2 Residual current devices for mounting on circuit breakers.................................................300
4.8.2.1 Side mounted residual current devices Basic RCD310 and Basic RCD510 .......................302
4.8.2.2 Loadside residual current devices Basic RCD320 and Basic RCD520 ..............................319
4.8.2.3 Loadside residual current device Advanced RCD820........................................................333
4.8.2.4 Technical specifications....................................................................................................352
4.8.3 Modular residual current device........................................................................................355
4.9 Communication and link-up to other systems....................................................................360
4.9.1 Description of application and basic function.....................................................................360
4.9.2 3VA concept 3VA-line.......................................................................................................369
4.9.3 Commissioning and testing of electronic trip units using powerconfig................................375
4.10 EFB300 external function box...........................................................................................379
4.10.1 General information..........................................................................................................379
4.10.2 Power supply ...................................................................................................................380
4.10.3 Functions of the digital input and digital outputs................................................................380
4.10.4 Zone-selective interlocking ZSI.........................................................................................382
4.10.5 <SET> button...................................................................................................................384
4.10.6 Technical specifications....................................................................................................391
4.11 Test devices.....................................................................................................................393
4.11.1 The TD300 activation and trip box ....................................................................................394
4.11.1.1 Operation and execution of the tripping function ...............................................................395
4.11.1.2 Technical specifications of TD300 ....................................................................................397
4.11.2 The TD500 test device .....................................................................................................398
4.11.2.1 Operation and execution of test functions .........................................................................403
4.11.2.2 Executing the test functions using a PC and powerconfig .................................................408
4.11.2.3 Parameterizing using the powerconfig software ................................................................408
4.11.2.4 Technical specifications....................................................................................................409
4.12 External current transformer for N conductor ....................................................................410

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4.13 Escutcheon ..................................................................................................................... 411
4.13.1 Product description.......................................................................................................... 412
4.13.2 Labeling plate.................................................................................................................. 414
4.14 DIN rail adapter ............................................................................................................... 415
4.14.1 Introduction ..................................................................................................................... 415
4.14.2 Information about installation, assembly and attachment ................................................. 416
5 Service and maintenance ........................................................................................................... 419
5.1 Notes .............................................................................................................................. 419
5.2 Regular maintenance ...................................................................................................... 419
5.3 Maintenance following tripping of a molded case circuit breaker....................................... 421
5.4 Fault diagnostics ............................................................................................................. 422
6 Technical specifications ............................................................................................................. 423
6.1 Circuit diagrams .............................................................................................................. 423
6.1.1 3VA1 molded case circuit breakers.................................................................................. 423
6.1.1.1 Basic units....................................................................................................................... 423
6.1.1.2 Accessories..................................................................................................................... 426
6.1.1.3 Example: 3VA1 molded case circuit breaker with built-on/built-in accessories .................. 431
6.1.2 3VA2 molded case circuit breakers.................................................................................. 432
6.1.2.1 Basic units....................................................................................................................... 432
6.1.2.2 Accessories..................................................................................................................... 433
6.1.2.3 Example: 3VA2 molded case circuit breaker with built-on/built-in accessories .................. 443
6.1.3 Application examples....................................................................................................... 444
6.1.3.1 Main switch application with EMERGENCY-STOP function in accordance with
Machinery Directive IEC/EN 60204-1............................................................................... 444
6.1.3.2 Electrical interlocking of two 3VA molded case circuit breakers with undervoltage
releases .......................................................................................................................... 445
6.2 Dimensional drawings ..................................................................................................... 446
6.2.1 Dimensions of basic units................................................................................................ 446
6.2.1.1 3VA10 and 3VA11........................................................................................................... 446
6.2.1.2 3VA12 ............................................................................................................................. 449
6.2.1.3 3VA20 ............................................................................................................................. 450
6.2.1.4 3VA23 ............................................................................................................................. 452
6.2.2 Dimensions of accessories .............................................................................................. 453
6.2.2.1 Connection technology .................................................................................................... 453
6.2.2.2 Plug-in and draw-out units ............................................................................................... 460
6.2.2.3 Manual operators ............................................................................................................ 463
6.2.2.4 Motor operators............................................................................................................... 471
6.2.2.5 Locking and interlocking .................................................................................................. 472
6.2.2.6 Residual current devices ................................................................................................. 478
6.2.2.7 Communication and system integration ........................................................................... 483
6.2.2.8 EFB300 external function box.......................................................................................... 484
6.2.2.9 Test devices.................................................................................................................... 485
6.2.2.10 External current transformer for N conductor ................................................................... 485
6.2.2.11 Escutcheon ..................................................................................................................... 486

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6.3 Power losses....................................................................................................................487
6.3.1 Power losses of 3VA1 molded case circuit breakers .........................................................487
6.3.2 Power losses of 3VA2 molded case circuit breakers .........................................................488
6.4 Derating and temperature compensation ..........................................................................489
6.4.1 Derating of 3VA1 molded case circuit breakers.................................................................489
6.4.2 Temperature compensation with thermal-magnetic trip units of the TM 2-series................491
6.4.3 Use of terminals with auxiliary conductor connection ........................................................496
6.4.4 Additional correction factors with frequencies other than 50/60 Hz for 3VA1 molded
case circuit breakers ........................................................................................................496
6.4.5 Correction factors with direct current for the thermal-magnetic trip units of 3VA1
molded case circuit breakers ............................................................................................498
6.4.6 Derating for the 3VA1 switch disconnector........................................................................499
6.4.7 Derating for the electronic trip units of 3VA2 molded case circuit breakers........................501
A Appendix ..................................................................................................................................505
A.1 Standards and approvals..................................................................................................505
B ESD guidelines..........................................................................................................................507
B.1 Electrostatic sensitive devices (ESD)................................................................................507
C List of abbreviations ...................................................................................................................509
C.1 Table of abbreviations ......................................................................................................509
D Conversion tables ......................................................................................................................515
Glossary ...................................................................................................................................519
Index ........................................................................................................................................525