International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61439-3:2012
Title Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO)
Project Number 23019
Abstract/Scope 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 (Inc) of the outgoing circuits does not exceed 125 A and the rated current (InA) 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.


Current Stage code 6060
Current Stage code date 2012-04-20
Current Stage code deadline 2012-12-22
Deadline date for vote  


Directive(s) LVD (2006/95/EC), EMC (2004/108/EC)
Order Voucher  


IEC Technical Body IEC/SC 17D
Reference Document IEC 61439-3:2012 (EQV)
ICS 29.130.20 - Low voltage switchgear and controlgear
Keywords Low-voltage; Switchgear; Controlgear; Distribution board; Ordinary persons
Note Supersedes EN 60439-3:1991 + A1:1994 + A2:2001 * 2012-02-24: Publication editing allocated to
A-Deviation(s) GB
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2012-04-20 2012-12-22 export to doc file  EN  FR  DE
5099 2012-03-22 2012-04-19  
5060 2012-01-31 2012-02-21 export to doc file  EN
5020 2011-11-25 2012-01-27  
3090 2010-12-24 2011-06-30  
5060 2010-12-06 2010-12-20 export to doc file  EN
5020 2010-07-02 2010-12-03  
1090 2010-06-29 2010-07-02  

Implementation Dates

date of Ratification (DOR) (1) 2012-03-22
date of Availability (DAV) (2) 2012-04-20
date of Announcement (DOA) (3) 2012-06-22
date of Publication (DOP) (4) 2012-12-22
date of Withdrawal (DOW) (5) 2015-03-22


Supersedes EN 60439-3:1991
EN 60439-3:1991/A1:1994
EN 60439-3:1991/A2:2001
Superseded by  
Normative reference (6) FprEN 60068-2-75:2013
HD 60269-3:2010
EN 60898-1:2003
corr. February 2004
EN 61008 series
EN 61009 series
EN 61439-1:2011
EN 62423:2012

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.