SSH EN IEC 60947-5-1:2025

Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and switching elements - Electromechanical control circuit devices

Scope

IEC 60947-5-1:2024 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear.

It applies to control circuit devices having a rated voltage not exceeding 1 000 V AC (at a frequency not exceeding 1 000 Hz) or 600 V DC.

This fifth edition cancels and replaces the fourth edition published in 2016. This edition constitutes a technical revision.

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

a) update of the scope structure and exclusions;

b) requirements for control circuits;

c) update of the normal service conditions (e.g. shock and vibration);

d) update of information and marking requirements including environmental information requirements referencing IEC TS 63058:2021;

e) update of the constructional requirements and the corresponding tests considering safety aspects (e.g. artificial optical radiation, security aspects, limited energy source, stored charge energy circuit);

f) update of the EMC requirements according to the generic documents;

g) new requirements for reed contact magnetic switches in Annex D;

h) requirements for class II circuit devices achieved by double or reinforced insulation in Annex F;

i) update of pull-out tests in Annex G;

j) information requirements for audible signalling device in Annex J;

k) insertion of new Annex O.

Related directives

Directives related to this standards.