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Reference IEC 60947-4-1 ed3.0 withdrawn corrigendum

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Title Versión Oficial En español - Aparamenta de baja tensión. Parte 4-1: Contactores y arrancadores de motor. Contactores y arrancadores electromecánicos.
Publication date 2009-09-16
Format, price
(Swiss francs)
and language
320.- 250 pages
320.- 1576 Kb
 
Abstract IEC 60947-4-1:2009 applies to the types of equipment whose main contacts are intended to be connected to circuits the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c. Starters and/or contactors dealt with in this standard are not normally designed to interrupt short-circuit currents. Therefore, suitable short-circuit protection forms part of the installation but not necessarily of the contactor or the starter. This third edition replaces the second edition published in 2000 and its Amendments 1 (2002) and 2 (2005). It is a technical revision. This edition includes the following significant technical changes with respect to the previous edition (2000) and its Amendments 1 (2002) and 2 (2005):
- deletion of the test at -5 °C and +20 °C for thermal overload relays that are not compensated for ambient air temperature;
- addition of conditions of the tests according to Annex Q of IEC 60947-1;
- EMC tests: clarification of acceptance criteria and alignment with IEC 60947-1 for fast transient severity level;
- Annex B, test for Icd: modification of the duration of the dielectric test voltage from 5 s to 60 s;
- Annex B, electrical durability: improvement of the statistical aspects;
- Annex H: clarification and introduction of new extended functions within electronic overload relays;
- Annex K, procedure to determine data for electromechanical contactors used in functional safety applications: creation of this new annex. This standard shall be read in conjunction with IEC 60947-1, Low voltage switchgear and controlgear - Part 1: General rules. The provisions of the general rules are applicable to this standard, where specifically called for.

This publication shall be read in conjunction with IEC 60947-1 :2007.
Technical Committee 121A - Low-voltage switchgear and controlgear  RSS
ICS Codes
29.120.99 Other electrical accessories

29.130.20 Low voltage switchgear and controlgear
*Including switchgear and controlgear assemblies
 
Replaced by
Stability date 2016
 
Work in progress
ProjectStage codeForecast publication date
No project under development--


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