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IEC 61643-331

Components for low-voltage surge protection – Part 331: Performance requirements and test methods for metal oxide varistors (MOV)

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Organization: IEC
Publication Date: 1 March 2020
Status: active
Page Count: 46
ICS Code (Potentiometers, variable resistors): 31.040.20
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This part of IEC 61643 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power lines, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages.

This document applies to MOVs having two electrodes and hybrid surge protection components.This document also does not apply to mountings and their effect on the MOV's characteristics. Characteristics given apply solely to the MOV mounted only in the ways described for the tests.

Document History

IEC 61643-331
March 1, 2020
Components for low-voltage surge protection – Part 331: Performance requirements and test methods for metal oxide varistors (MOV)
This part of IEC 61643 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power lines, or telecommunication, or signalling...
IEC 61643-331
December 1, 2017
Components for low-voltage surge protective devices – Part 331: Performance requirements and test methods for metal oxide varistors (MOV)
This part of IEC 61643 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power line, or telecommunication, or signalling...
IEC 61643-331
May 1, 2003
Components for low-voltage surge protective devices Part 331: Specification for metal oxide varistors (MOV)
This part of IEC 61643 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V a.c. or 1 500 V d.c. in power line, or telecommunication, or signalling...

References

This document references:
IEC 60068-2-14 - Environmental testing – Part 2-14: Tests – Test N: Change of temperature
Published by IEC on January 1, 2009
Introduction A change of temperature test is intended to determine the effect on the specimen of a change of temperature or a succession of changes of temperature. It is not intended to show effects...
This document references:
IEC 60068-2-20 - Environmental testing – Part 2-20: Tests – Tests Ta and Tb: Test methods for solderability and resistance to soldering heat of devices with leads
Published by IEC on March 1, 2021
This part of IEC 60068 outlines Tests Ta and Tb, applicable to devices with leads and leads themselves. Soldering tests for surface mounting devices (SMD) are described in IEC 60068-2-58. This...
This document references:
IEC 60068-2-21 - Environmental testing – Part 2-21:Tests – Test U: Robustness of terminations and integral mounting devices
Published by IEC on January 1, 2012
This part of IEC 60068 is applicable to all electrical and electronic components whose terminations or integral mounting devices are liable to be submitted to stresses during normal assembly or...
This document references:
IEC 60068-2-27 - Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock
Published by IEC on February 1, 2008
Object To provide a standard procedure for determining the ability of a specimen to withstand specified severities of shock.
This document is referenced by:
CEI EN IEC 60709 - Nuclear power plants - Instrumentation, control and electrical power systems important to safety - Separation
Published by CEI on March 1, 2020
General This document is applicable to nuclear power plant instrumentation and control (I&C) and electrical systems and equipment, whose functions are required to be independent due to their...
This document is referenced by:
IEC 61643-12 - Low-voltage surge protective devices – Part 12: Surge protective devices connected to low-voltage power systems – Selection and application principles
Published by IEC on May 1, 2020
This part of IEC 61643 describes the principles for the selection, operation, location and coordination of SPDs to be connected to 50/60 Hz AC power circuits, and equipment rated up to 1 000 V RMS....
This document is referenced by:
IEC 60664-1 - Insulation coordination for equipment within low-voltage supply systems – Part 1: Principles, requirements and tests
Published by IEC on May 1, 2020
This part of IEC 60664 deals with insulation coordination for equipment having a rated voltage up to AC 1 000 V or DC 1 500 V connected to low-voltage supply systems. This document applies to...
This document is referenced by:
EN IEC 61439-7 - Low-voltage switchgear and controlgear assemblies - Part 7: Assemblies for specific applications such as marinas, camping sites, market squares, electric vehicle charging stations
Published by CENELEC on May 1, 2020
NOTE 1 Throughout this document, the terms AMHS (see 3.1.701), ACCS (see 3.1.702), AMPS (see 3.1.703), AEVCS (see 3.1.704) are used for low-voltage switchgear and controlgear assemblies intended for...
This document is referenced by:
NEN-EN-IEC 62368-1/A11 - Audio/video, information and communication technology equipment - Part 1: Safety requirements
Published by NEN on March 1, 2020
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