EN 60947-4-2:2012

Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters

Publication date:   Aug 15, 2012

General information

60.60 Standard published   Jun 29, 2012

CENELEC

CLC/TC 121A Low-voltage switchgear and controlgear

European Norm

29.130.20   Low voltage switchgear and controlgear

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Scope

IEC 60947-4-2:2011 applies to a.c. semiconductor motor controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. This standard characterizes a.c. semiconductor motor controllers and starters with and without bypass means. This third edition replaces the second edition published in 1999 and its Amendments 1 (2001) and 2 (2006). It is a technical revision. This edition includes the following significant technical changes with respect to the previous edition and its amendments: - updated EMC normative references and associated requirements, - new references to IEC 60947-1, - marking of electronic relays without thermal memory, - marking of tripping time at 0 °C ambient or below, - new test requirements for limits of operation of time-delay overload relays, - new classes of overload current withstand time, - damp heat, salt mist, vibration and shock tests, - short-circuit test in the smallest enclosure, - update of the routine and sampling tests. This publication is to be read in conjunction with <a href='http://webstore.iec.ch/webstore/webstore.nsf/ArtNum_PK/44978'>IEC 60947-1:2007</a>.

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
2004/108/EC

Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC

Harmonized/Supporting
2014/30/EU

Directive 2014/30/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 electromagnetic compatibility (recast)

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

PREVIOUSLY

WITHDRAWN
EN 60947-4-2:2000/A2:2006

WITHDRAWN
EN 60947-4-2:2000/A1:2002

WITHDRAWN
EN 60947-4-2:2000

NOW

PUBLISHED
EN 60947-4-2:2012
60.60 Standard published
Jun 29, 2012

REVISED BY

PUBLISHED
EN IEC 60947-4-2:2023