SR EN 60255-27:2014

Measuring relays and protection equipment -- Part 27: Product safety requirements

IEC 60255-27:2013 describes the product safety requirements for measuring relays and protection equipment having a rated a.c. voltage up to 1 000 V with a rated frequency up to 65 Hz, or a rated d.c. voltage up to 1 500 V. Above these limits, IEC 60664-1 is applicable for the determination of clearance, creepage distance and withstand test voltage. This standard details essential safety requirements to minimize the risk of fire and hazards caused by electric shock or injury to the user. This new edition includes the following significant technical changes with respect to the previous edition: - the removal of tables and diagrams which are from other standards and referring instead directly to the source standard; - all aspects of IEC 60255-5 have been covered and this standard will be withdrawn.

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General information

Status : Valid
Approval date : 8/29/2014
Withdrawal date : 4/30/2028
Number of pages : 106
ICS : 29.120.70 Relays
Technical Committee : 23 - Industrial -process measurement and control

Relations with other standards:

Replaces SR EN 60255-27:2006
Normative reference SR CEI 60050(161):1997
Normative reference SR CEI 60050(191):2002
Normative reference SR CEI 60050(212):1996
Normative reference SR CEI 60050(321):1995
Normative reference SR CEI 60050(371):1995
Normative reference SR CEI 60050(411):1999
Normative reference SR CEI 60050(421):1999
Normative reference SR CEI 60050(426):1997
Normative reference SR CEI 60050(441):1997
Normative reference SR CEI 60050(448):1997
Normative reference SR CEI 60050(466):1999
Normative reference SR CEI 60050(471):2001
Normative reference SR CEI 60050(521):2005
Normative reference SR CEI 60050(531):2005
Normative reference SR CEI 60050(541):1995
Normative reference SR CEI 60050(604):1997
Normative reference SR CEI 60050(605):1996
Normative reference SR CEI 60050(702):2005
Normative reference SR CEI 60050(716-1):2006
Normative reference SR CEI 60050(811):2000
Normative reference SR CEI 60050-101:2006
Normative reference SR CEI 60050-111:2006
Normative reference SR CEI 60050-121:2006
Normative reference SR CEI 60050-131:2006
Normative reference SR CEI 60050-141:2006
Normative reference SR CEI 60050-151:2006
Normative reference SR CEI 60050-195:2006
Normative reference SR CEI 60050-221:2005
Normative reference SR CEI 60050-300:2005
Normative reference SR CEI 60050-351:2005
Normative reference SR CEI 60050-393:2006
Normative reference SR CEI 60050-394:2006
Normative reference SR CEI 60050-415:2005
Normative reference SR CEI 60050-431:2005
Normative reference SR CEI 60050-436:2005
Normative reference SR CEI 60050-442:2005
Normative reference SR CEI 60050-444:2005
Normative reference SR CEI 60050-445:2005
Normative reference SR CEI 60050-446:2005
Normative reference SR CEI 60050-447:2015
Normative reference SR CEI 60050-482:2006
Normative reference SR CEI 60050-551:2005
Normative reference SR CEI 60050-551-20:2005
Normative reference SR CEI 60050-561:2005
Normative reference SR CEI 60050-581:2005
Normative reference SR CEI 60050-601:2006
Normative reference SR CEI 60050-602:2006
Normative reference SR CEI 60050-603:2006
Normative reference SR CEI 60050-651:2005
Normative reference SR CEI 60050-691:2006
Normative reference SR CEI 60050-701:2006
Normative reference SR CEI 60050-704:2006
Normative reference SR CEI 60050-705:2006
Normative reference SR CEI 60050-712:2006
Normative reference SR CEI 60050-713:2006
Normative reference SR CEI 60050-714:2006
Normative reference SR CEI 60050-715:2006
Normative reference SR CEI 60050-721:2006
Normative reference SR CEI 60050-722:2006
Normative reference SR CEI 60050-723:2006
Normative reference SR CEI 60050-725:2006
Normative reference SR CEI 60050-731:2006
Normative reference SR CEI 60050-801:2005
Normative reference SR CEI 60050-806:2006
Normative reference SR CEI 60050-807:2006
Normative reference SR CEI 60050-808:2006
Normative reference SR CEI 60050-815:2005
Normative reference SR CEI 60050-826:2006
Normative reference SR CEI 60050-841:2005
Normative reference SR CEI 60050-845:2005
Normative reference SR CEI 60050-851:2005
Normative reference SR CEI 60050-881:2006
Normative reference SR CEI 60050-891:2005
Normative reference SR EN 60255-1:2010
Normative reference SR EN 60255-21-2:2002
Normative reference SR EN 60255-26:2014
Normative reference SR EN 60352-2:2006
Normative reference SR EN 60529:1995
Normative reference SR EN 60529:1995/AC:2017
Normative reference SR EN 60664-3:2004
Normative reference SR EN 60695-11-10:2014
Normative reference SR EN 60990:2003
Normative reference SR EN 61032:2002
Normative reference SR EN 61180-1:2001
Normative reference SR EN 60085:2008
Normative reference SR EN 60255-21-1:2002
Normative reference SR EN 60255-21-3:1996
Normative reference SR EN 60352-1:2002
Normative reference SR EN 60529:1995/A1:2003
Normative reference SR EN 60664-1:2008
Normative reference SR EN 60825-1:2015
Normative reference SR EN 61010-1:2011
Normative reference SR EN 61140:2016
Normative reference SR EN 61180-2:2001
Replaced by SR EN IEC 60255-27:2025