IEC 60947-4-2:2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
18-05-2011
31-12-2021
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
4 Classification
5 Characteristics of a.c. semiconductor motor
controllers and starters
6 Product information
7 Normal service, mounting and transport conditions
8 Constructional and performance requirements
9 Tests
Annex A (normative) - Marking and identification
of terminals
Annex C (normative) - Co-ordination at the crossover
current between the starter and associated SCPD
Annex F (informative) - Operating capability
Annex G (informative) - Examples of control circuit
configurations
Annex I (normative) - Modified test circuit for
short-circuit testing of semiconductor motor
controllers and starters
Annex J (informative) - Flowchart for constructing
bypassed semiconductor controllers tests
Annex K (normative) - Extended functions within
electronic overload relays
Bibliography
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.
The contents of the corrigendum of July 2012 have been included in this copy.
This publication is to be read in conjunction with IEC 60947-1:2007.
| Committee |
TC 121/SC 121A
|
| DevelopmentNote |
To be read in conjunction with IEC 60947-1. (05/2011) Stability Date: 2019. (09/2017)
|
| DocumentType |
Standard
|
| Pages |
202
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| DS EN 60947-4-2 : 2012 | Identical |
| NF EN 60947-4-2 : 2012 | Identical |
| NEN EN IEC 60947-4-2 : 2012 C1 2012 | Identical |
| PN EN 60947-4-2 : 2012 | Identical |
| AS/NZS IEC 60947.4.2:2015 | Identical |
| SAC GB/T 14048.6 : 2016 | Identical |
| DIN EN 60947-4-2 : 2013 | Identical |
| VDE 0660-117 : 2013 | Identical |
| BS EN 60947-4-2:2012 | Identical |
| CEI EN 60947-4-2 : 2013 | Identical |
| EN 60947-4-2:2012 | Identical |
| UNE-EN 60947-4-2:2013 | Identical |
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