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    I.S. EN IEC 61643-331:2018

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 331: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR METAL OXIDE VARISTORS (MOV)

    Available format(s):  Hardcopy, PDF

    Superseded date:  05-06-2020

    Language(s):  English

    Published date:  16-04-2018

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    National Foreword
    FOREWORD
    1 Scope
    2 Normative references
    3 Terms, definitions, symbols and abbreviated terms
    4 Service conditions
    5 Mechanical requirements and materials
    6 General
    7 Electrical requirements
    8 Standard design test criteria
    9 Nominal discharge current and limited current
      temporary overvoltage
    Annex A (informative) - MOV testing according to
            IEC 61643-11:2011 - Surge protective devices
            for the Class I, II and III
    Annex B (informative) - IEC 61051 Varistors for use
            in electronic equipment
    Annex C (informative) - Accelerated endurance
            screening test
    Annex D (informative) - Proposed test method for
            determination of mean time to failure (MTTF)
    Bibliography
    Annex ZA (normative) - Normative references to
             international publications with their
             corresponding European publications

    Abstract - (Show below) - (Hide below)

    Defines a test specification for metal oxide varistors (MOV), which are used for applications up to 1000 V AC or 1500 V DC in power line, or telecommunication, or signalling circuits.

    General Product Information - (Show below) - (Hide below)

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. Supersedes I.S. EN 61643-331. (04/2018)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60068-1:2013 Environmental testing - Part 1: General and guidance
    IEC 60068-2-20:2008 Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability and resistance to soldering heat of devices with leads
    EN 60068-2-20:2008 Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability and resistance to soldering heat of devices with leads
    IEC 60068-2-21:2006 Environmental testing - Part 2-21: Tests - Test U: Robustness of terminations and integral mounting devices
    EN 60068-1:2014 Environmental testing - Part 1: General and guidance
    EN 61000-4-2:2009 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
    IEC TR 62240-1:2013 Process management for avionics - Electronic components capability in operation - Part 1: Temperature uprating
    EN 60068-2-21:2006 Environmental testing - Part 2-21: Tests - Test U: Robustness of terminations and integral mounting devices
    IEC 61000-4-2:2008 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
    IEC 61051-2:1991 Varistors for use in electronic equipment - Part 2: Sectional specification for surge suppression varistors
    IEC 61643-11:2011 Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and test methods
    EN 60068-2-78:2013 Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state
    IEC 60068-2-29:1987 Environmental testing. Part 2: Tests. Test Eb and guidance: Bump
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    IEC 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
    IEC 60068-2-52:2017 Environmental testing - Part 2-52: Tests - Test Kb: Salt mist, cyclic (sodium chloride solution)
    IEC 61051-1:2007 Varistors for use in electronic equipment - Part 1: Generic specification
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