BS EN IEC 60947-1:2021

This document 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 document does not apply to:

• low-voltage switchgear and controlgear assemblies which are dealt with in IEC 61439 series, as applicable;

• terminals for connection of aluminium conductors;

  NOTE Terminals for aluminium conductors are under consideration for the next revision.

• use within explosive atmospheres (see IEC 60079 series);

• software and firmware requirements for functional safety application (see IEC 61508-3);

• cyber security aspects (see IEC 62443 series).