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IEC 60947-2:2016 ED5

Low-voltage switchgear and controlgear - Part 2: Circuit-breakers

Publication date:   Jun 7, 2016

General information

99.60 Withdrawal effective   Sep 18, 2024

IEC

TC 121/SC 121A

International Standard

29.130.20   Low voltage switchgear and controlgear

Buying

  Revised

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  English  



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Scope

IEC 60947-2:2016 applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.; it also contains additional requirements for integrally fused circuit-breakers. This fifth edition cancels and replaces the fourth edition published in 2006, Amendment 1:2009 and Amendment 2:2013. This edition constitutes a technical revision. This edition includes the following significant additions with respect to the previous edition:
- tests for verification of selectivity in Annex A (see A.5.3);
- critical load current tests for d.c. circuit-breakers (see 8.3.9);
- new Annex P for circuit-breakers for use in photovoltaic applications;
- new Annex R for residual-current circuit-breakers with automatic reclosing functions. The contents of the corrigendum of November 2016 have been included in this copy.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 60947-2:2006 ED4

WITHDRAWN
IEC 60947-2:2006/AMD1:2009 ED4

WITHDRAWN
IEC 60947-2:2006/AMD2:2013 ED4

NOW

WITHDRAWN
IEC 60947-2:2016 ED5
99.60 Withdrawal effective
Sep 18, 2024

CORRIGENDA / AMENDMENTS

WITHDRAWN
IEC 60947-2:2016/COR1:2016 ED5

WITHDRAWN
IEC 60947-2:2016/AMD1:2019 ED5

REVISED BY

PUBLISHED
IEC 60947-2:2024 ED6