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Table of contents
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
13
4.10.6 Auxiliary switches, lateral and signaling switches......................................................................457
4.10.7 Auxiliary releases.......................................................................................................................458
4.10.8 Short-circuit protection for auxiliary and control circuits ............................................................458
4.10.9 Conductor cross-sections main circuit .......................................................................................459
4.10.10 Conductor cross-sections auxiliary and control circuits.............................................................460
4.10.11 Short-circuit breaking capacity...................................................................................................462
4.10.11.1 Short-circuit breaking capacity for motor starter protectors..................................................462
4.10.11.2 Short-circuit breaking capacity for motor starter protectors in the IT system .......................464
4.10.11.3 Short-circuit breaking capacity for motor starter protectors with limiter function..................467
4.10.12 Permissible rated data of approved devices for North America (UL/CSA)................................467
4.10.12.1 Approved according to UL 508/CSA C22.2 No. 14 ..............................................................467
4.10.12.2 Approval as "circuit breaker" according to UL 489/CSA C 22.2 No. 5-02 ............................476
4.11
Dimension drawings (dimensions in mm) ..................................................................................478
4.11.1 Dimension drawings for 3RV2 motor starter protectors.............................................................478
4.12
Circuit diagrams .........................................................................................................................482
5
SIRIUS 3RU2/3RB3 overload relays...................................................................................................... 485
5.1
Standards...................................................................................................................................485
5.1.1
Standards...................................................................................................................................485
5.2
Product description ....................................................................................................................486
5.2.1
Introduction ................................................................................................................................486
5.2.2
Versions .....................................................................................................................................487
5.2.3
Applications................................................................................................................................488
5.2.4
3RU21 thermal overload relays .................................................................................................490
5.2.5
3RB30/3RB31 solid-state overload relays.................................................................................491
5.3
Product combinations ................................................................................................................493
5.4
Functions....................................................................................................................................494
5.4.1
Protection against overload, phase failure, and phase asymmetry...........................................494
5.4.1.1 Functional principle ....................................................................................................................494
5.4.1.2 Time-delayed overload release..................................................................................................495
5.4.1.3 Tripping classes .........................................................................................................................495
5.4.1.4 Tripping characteristics ..............................................................................................................496
5.4.2
Ground-fault protection (3RB31 only) ........................................................................................499
5.4.3
Auxiliary contacts .......................................................................................................................500
5.4.4
Indication of the operating state.................................................................................................501
5.4.5
Self-monitoring (3RB30/3RB31 only).........................................................................................501
5.4.6
Additional functions....................................................................................................................502
5.5
Configuration..............................................................................................................................503
5.5.1
Overload relays in motor feeders...............................................................................................503
5.5.1.1 Overload relays in motor feeders...............................................................................................503
5.5.1.2 Normal and heavy-duty starting.................................................................................................504
5.5.1.3 Contactor assembly for star-delta (wye-delta) start...................................................................505
5.5.1.4 Operation with frequency converters .........................................................................................505
5.5.2
Short-circuit protection ...............................................................................................................506
5.5.3
Protecting explosion-protected motors ......................................................................................506
5.5.4
Application environment.............................................................................................................506
5.6
Mounting ....................................................................................................................................508
5.6.1
Mounting options........................................................................................................................508
5.6.2
Minimum clearances and mounting position..............................................................................508
5.6.3
Mounting/Disassembly...............................................................................................................509
Содержание SIRIUS 3RH Series
Страница 1: ...SIRIUS Innovations System Manual 01 2011 Industrial Controls Answers for industry ...
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Страница 640: ...SIRIUS 3RA21 22 load feeders 6 12 Circuit diagrams SIRIUS Innovations 640 System Manual 01 2011 A8E56203870002 03 ...
Страница 760: ...Appendix A A 3 Correction sheet SIRIUS Innovations 760 System Manual 01 2011 A8E56203870002 03 ...
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