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Product Product IEC 61439-1:2020
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IEC 61439-1:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

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.

Standard Number Standard Number IEC 61439-1:2020
Title Title IEC 61439-1:2020 + RLV Redline version Low-voltage switchgear and controlgear assemblies - Part 1: General rules
Status Status Published
Publication Date Publication Date 05 May 2020
Cross References Cross References
Descriptors Descriptors
ICS ICS 29.130.20
Committee Committee TC 121/SC 121B - Low-voltage switchgear and controlgear assemblies
ISBN ISBN
Publisher Publisher PECB Store
Format Format PDF
Delivery Delivery NO
Pages Pages 504
File Size File Size KB