SRPS EN 60947-2:2017

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

Scope

IEC 60947-2:2016 is available as <a
href="https://webstore.iec.ch/publication/25034">IEC 60947-2:2016
RLV which contains the International Standard and its Redline
version, showing all changes of the technical content compared to
the previous edition.


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.

Related directives

NOTE: If the word "harmonized" (marked in green) is not found in the field with the name of the directive, it means that the European standard is not cited in the OJEU.

Regulation