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.