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



Reference EN 60255-11:2010
Title Measuring relays and protection equipment - Part 11: Voltage dips, short interruptions, variations and ripple on auxiliary power supply port
Project Number 21612
Abstract/Scope IEC 60255-11:2008 specifies the general requirements for a.c. and d.c. power supplies, for measuring relays and protection equipment for power system protection, including the control, monitoring and process interface equipment used with those systems. The objective of the tests is to confirm that the equipment under test will operate correctly when energised and subjected to dips, interruptions and alternating components (ripple). The main differences with respect to the previous edition are as follows: addition of voltage dips and interruptions test in a.c.; addition of gradual shut-down/start-up test; addition of reversal of d.c. power supply polarity test.


Current Stage code 6060
Current Stage code date 2010-01-22
Current Stage code deadline 2010-09-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 95
Reference Document IEC 60255-11:2008 (EQV)
ICS 29.120.70 - Relays
Keywords Relay; Protection; Voltage dip; Interruption; Ripple
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-01-22 2010-09-01 export to doc file  EN  FR  DE
5099 2009-12-01 2010-02-01  
5061 2009-10-28 2009-12-01  
5060 2008-09-23 2008-10-07 export to doc file  EN
5020 2008-07-18 2008-09-19  
3090 2008-07-04 2008-07-31  
5060 2008-05-19 2008-06-02 export to doc file  EN
5020 2007-12-14 2008-05-16  
1090 2007-12-11 2007-12-14  

Implementation Dates

date of Ratification (DOR) (1) 2009-12-01
date of Availability (DAV) (2) 2010-01-22
date of Announcement (DOA) (3) 2010-03-01
date of Publication (DOP) (4) 2010-09-01
date of Withdrawal (DOW) (5) 2012-12-01


Superseded by EN 60255-26:2013
Normative reference (6) EN 60255-6:1994
corr. February 1995
EN 61000-4-11:2004
EN 61000-4-17:1999
EN 61000-4-29:2000

(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.