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EVS-EN IEC 61643-332:2024

Components for low-voltage surge protection - Part 332: Selection and application principles for metal oxide varistors (MOV)

General information

Valid from 03.06.2024
Base Documents
IEC 61643-332:2024; EN IEC 61643-332:2024
Directives or regulations
None

Standard history

Status
Date
Type
Name
03.06.2024
Main
IEC 61643-332:2024 describes the theory of operation, principles for the selection and application of MOVs to be connected to power lines or telecommunication or signalling circuits, up to 1 000 V AC or 1 500 V DC. These SPCs are designed to protect apparatus or personnel, or both, from high transient voltages. This document applies to MOVs having two electrodes and voltage dependents elements with or without disconnectors. It does not apply to assemblies that include MOVs and their influence on the MOV's characteristics. This standard specifically discusses the zinc-oxide type of MOVs.

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