SSH EN IEC 60947-1:2021

Low-voltage switchgear and controlgear - Part 1: General rules

Scope

IEC 60947-1:2020 applies, when required by the relevant product standard, to low-voltage switchgear and controlgear hereinafter referred to as "equipment" or “device” and intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC.

This document states the general rules and common safety requirements for low-voltage switchgear and controlgear, including:

- definitions;

- characteristics;

- information supplied with the equipment;

- normal service, mounting and transport conditions, decommissioning and dismantling;

- constructional and performance requirements;

- verification of characteristics and performance;

- energy efficiency aspects (see Annex V);

- environmental aspects.

This sixth edition cancels and replaces the fifth edition published in 2007, Amendment 1:2010 and Amendment 2:2014. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

– DC values testing improvement;

– update of EMC tests;

– Annex B deletion;

– update of requirements for environmental tests (Table Q.1);

– improvement of Annex R (new examples);

– deletion of digital input Type 2, and introduction of Type 3 in Annex S;

– example for materials declaration (Annex W);

– new Annex X (co-ordination between short-circuit protective devices associated in the same circuit) created.

Related directives

Directives related to this standards.