EN 50274:2002

Low-voltage switchgear and controlgear assemblies - Protection against electric shock - Protection against unintentional direct contact with hazardous live parts

Publication date:   Mar 2, 2006

General information

90.60 Close of review   Mar 3, 2020

CENELEC

CLC/SR 121B Low-voltage switchgear and controlgear assemblies

European Norm

29.130.20   Low voltage switchgear and controlgear

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Scope

This standard applies to low-voltage switchgear and controlgear assemblies with a rated voltage not exceeding
AC 1 000 V or DC 1 500 V. It sets out the requirements for the provision of additional features to provide
protection against electric shock from direct contact with hazardous live parts only for skilled and instructed
persons when they are required to manually actuate devices within the assembly and where a level of protection
for the operating face of not less than IPXXB cannot be achieved. These devices are those only accessible via a
door or cover requiring a key or tool to open it or in an assembly located in an area set apart and where the
access to that area is restricted solely to skilled or instructed persons.
This standard does not apply to
– manually operated devices and their locations where access is available to ordinary persons,
– low-voltage switchgear and controlgear assemblies where the operating voltage does not exceed AC 50 V
or DC 120 V and there is protective separation, in accordance with EN 61140, between these circuits and
any other circuits,
NOTE Voltages generated by means of auto-transformers, potentiometers, semiconductor components etc. do NOT
meet these requirements.
– low-voltage switchgear and controlgear assemblies where protection of persons is provided by limitation of
steady-state touch current or charge in accordance with EN 61140.

Related legislation

Legislation related to this standard

2006/95/EC

Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)

Harmonized/Supporting
2014/35/EU

Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits

Harmonized/Supporting

Life cycle

NOW

PUBLISHED
EN 50274:2002
90.60 Close of review
Mar 3, 2020

CORRIGENDA / AMENDMENTS

PUBLISHED
EN 50274:2002/corrigendum Jul. 2009

Relations

Adopted from BT(DE/NOT)76 NOT_EQUIVALENT