EN IEC 61439-1:2021

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

Publication date:   Sep 16, 2021

General information

60.60 Standard published   May 21, 2021

CENELEC

CLC/SR 121B Low-voltage switchgear and controlgear assemblies

European Norm

29.130.20   Low voltage switchgear and controlgear

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<!-- NEW! -->IEC 61439-1:2020 is available as <a href="https://webstore.iec.ch/publication/67026">IEC 61439-1:2020 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.</br></br>IEC 61439-1:2020 lays down the general definitions and service conditions, construction requirements, technical characteristics and verification requirements for low-voltage switchgear and controlgear assemblies. NOTE Throughout this document, the term assembly(s) (see 3.1.1) is used for a low-voltage switchgear and controlgear assembly(s). For the purpose of determining assembly conformity, the requirements of the relevant part of the IEC 61439 series, Part 2 onwards, apply together with the cited requirements of this document. For assemblies not covered by Part 3 onward, Part 2 applies. This third edition cancels and replaces the second edition published in 2011. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:

a) clarification that power electric converter systems, switch mode power supplies, uninterruptable power supplies and adjustable speed power drive systems are tested to their particular products standard, but when they are incorporated in assemblies the incorporation is in accordance with the IEC 61439 series of standards;

b) introduction of a group rated current for circuits within a loaded assembly and the refocusing of temperature-rise verification on this new characteristic;

c) addition of requirements in respect of DC;

d) introduction of the concept of class I and class II assemblies regarding protection against electric shock.

Related legislation

Legislation related to this standard

2014/35/EU

Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits

Life cycle

PREVIOUSLY

Replaces
EN 61439-1:2011

NOW

PUBLISHED
EN IEC 61439-1:2021
60.60 Standard published
May 21, 2021

CORRIGENDA / AMENDMENTS

Corrected by
EN IEC 61439-1:2021/AC:2022-01