Publication detail

Reference

IEC 61439-3 ed1.0

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Title

Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO)

Publication date

2012-02-16

Format, price
(Swiss francs)
and language

	100.-		40 pages
	100.-		1186 Kb

Abstract

IEC 61439-3:2012 defines the specific requirements for distribution boards intended to be operated by ordinary persons (DBO). DBOs have the following criteria:
- intended to be operated by ordinary persons (e.g. switching operations and replacing fuse-links), e.g. in domestic (household) applications;
- outgoing circuits contain protective devices, intended to be operated by ordinary persons, complying e.g. with IEC 60898-1, IEC 61008, IEC 61009, IEC 62423 and IEC 60269-3;
- rated voltage to earth does not exceed 300 V a.c.;
- rated current (I_nc) of the outgoing circuits does not exceed 125 A and the rated current (I_nA) of the DBO does not exceed 250 A;
- intended for the distribution of electrical energy;
- enclosed, stationary;
- for indoor or outdoor use.
This first edition cancels and replaces the first edition of IEC 60439-3 (1990), Amendment 1 (1993) and Amendment 2 (2001). It constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60439-3 (including the amendments):
- alignment with IEC 61439-1:2011.

This publication is to be read in conjunction with IEC 61439-1:2011.

Technical Committee

17D - Low-voltage switchgear and controlgear assemblies

ICS Codes

29.130.20

Low voltage switchgear and controlgear
*Including switchgear and controlgear assemblies

Stability date

2015

Work in progress

Project	Stage code	Forecast publication date
No project under development	-	-

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