• IEC 60947-4-1:2009+AMD1:2012 CSV

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  12-09-2022

    Language(s):  English - French

    Published date:  20-07-2012

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    INTRODUCTION (to amendment 1)
    1 Scope and object
    2 Normative references
    3 Terms, definitions, symbols and abbreviations
    4 Classification
    5 Characteristics of contactors 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 of contactors and associated
            overload relays
    Annex B (normative) - Special tests
    Annex C - Void
    Annex D (informative) - Items subject to agreement
            between manufacturer and user
    Annex E (informative) - Void
    Annex F (normative) - Requirements for auxiliary
            contact linked with power contact (mirror
    Annex G (informative) - Rated operational currents and
            rated operational powers of switching devices
            for electrical motors
    Annex H (normative) - Extended functions to electronic
            overload relays
    Annex I (informative) - AC1 contactors for use with
            semiconductor controlled motor loads
    Annex J - Void
    Annex K (normative) - Procedure to determine data for
            electromechanical contactors used in functional
            safety applications

    Abstract - (Show below) - (Hide below)

    IEC 60947-4-1:2009+A1:2012 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 consolidated version consists of the third edition (2009) and its amendment 1 (2012). Therefore, no need to order amendment in addition to this publication.

    This publication shall be read in conjunction with IEC 60947-1:2007.

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    Committee TC 121/SC 121A
    Development Note Supersedes IEC 60158-1, IEC 60292-1, IEC 60292-2, IEC 60292-3, IEC 60292-4 (03/2001) Supersedes IEC 60158-1C. (07/2004) To be read in conjunction with IEC 60947-1. (07/2012) Stability date: 2018. (11/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By