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



Reference EN 62477-1:2012
Title Safety requirements for power electronic converter systems and equipment - Part 1: General
Project Number 22817
Abstract/Scope IEC 62477-1:2012 applies to Power Electronic Converter Systems (PECS) and equipment, their components for electronic power conversion and electronic power switching, including the means for their control, protection, monitoring and measurement, such as with the main purpose of converting electric power, with rated system voltages not exceeding 1 000 V a.c. or 1 500 V d.c. This document may also be used as a reference standard for product committees producing product standards for: - adjustable speed electric power drive systems (PDS); - standalone uninterruptible power systems (UPS); - low voltage stabilized d.c. power supplies. For PECS for which no product standard exists, this standard provides minimum requirements for safety aspects. This part of IEC 62477 has the status of a group safety publication in accordance with IEC Guide 104 for power electronic converter systems and equipment for solar, wind, tidal, wave, fuel cell or similar energy sources. According to IEC Guide 104, one of the responsibilities of technical committees is, wherever applicable, to make use of basic safety publications and/or group safety publications in the preparation of their product standards. This International Standard: - establishes a common terminology for safety aspects relating to PECS and equipment; - establishes minimum requirements for the coordination of safety aspects of interrelated parts within a PECS; - establishes a common basis for minimum safety requirements for the PEC portion of products that contain PEC; - specifies requirements to reduce risks of fire, electric shock, thermal, energy and mechanical hazards, during use and operation and, where specifically stated, during service and maintenance; - specifies minimum requirements to reduce risks with respect to pluggable and permanently connected equipment, whether it consists of a system of interconnected units or independent units, subject to installing, operating and maintaining the equipment in the manner prescribed by the manufacturer. This International Standard does not cover: - telecommunications apparatus other than power supplies to such apparatus; - functional safety aspects as covered by e.g. IEC 61508; - electrical equipment and systems for railways applications and electric vehicles.


Current Stage code 6060
Current Stage code date 2012-10-05
Current Stage code deadline 2013-05-28
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 22
Reference Document IEC 62477-1:2012 (EQV)
ICS 29.200 - Rectifiers. Convertors. Stabilized power supply
Keywords Safety; Power; Electronic; Converter
Note D147/C061: EN 62477-1:2012 partially supersede EN 50178:1997. A corrigendum to be issued.
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2012-10-05 2013-05-28 export to doc file  EN  FR  DE
5099 2012-08-28 2012-09-25  
5060 2012-06-04 2012-06-25 export to doc file  EN
5020 2012-03-30 2012-06-01  
3090 2011-10-07 2012-01-31  
5060 2011-09-12 2011-10-03 export to doc file  EN
5020 2011-04-08 2011-09-09  
3090 2011-04-05 2011-04-08  
5060 2010-06-28 2010-07-12 export to doc file  EN
5020 2010-01-22 2010-06-25  
1090 2010-01-19 2010-01-22  

Implementation Dates

date of Ratification (DOR) (1) 2012-08-28
date of Availability (DAV) (2) 2012-10-05
date of Announcement (DOA) (3) 2012-11-28
date of Publication (DOP) (4) 2013-05-28
date of Withdrawal (DOW) (5) 2015-08-28


Supersedes EN 50178:1997
Superseded by  
Normative reference (6) ANSI/ASTM E84:2008
ASTM E162-11a:2009
IEC Guide 104:2010
IEC Guide 117:2010
ISO 3746:1995
ISO 3864-1:2002
ISO 7000:2004
ISO 7010:2011
ISO 9614-1:1993
ISO 9772:2001
IEC 60050-447:2010
EN 60060-1:2010
EN 60068-2-2:2007
EN 60068-2-6:2008
EN 60068-2-52:1996
EN 60068-2-68:1996
EN 60068-2-78:2001
EN 60112:2003
EN 60216-4-1:2006
HD 60364-1:2008
HD 60364-4-41:2007
corr. July 2007
HD 60364-4-442:2012
HD 60364-5-54:2011
IEC/TS 60479-1:2005
EN 60529:1991
corr. May 1993
EN 60664-1:2007
EN 60664-3:2003
EN 60664-4:2006
corr. October 2006
EN 60695-2-10:2001
EN 60695-2-11:2001
EN 60695-2-13:2010
EN 60695-10-2:2003
EN 60695-11-10:1999
EN 60695-11-20:1999
EN 60721-3-3:1995
EN 60721-3-4:1995
EN 60730-1:2011
IEC/TR 60755:2008
IEC 60949:1988
EN 60990:1999
EN 61032:1998
EN 61180-1:1994
IEC 60417-DB
IEC 60617-DB

(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.