IEC 61643-332 ED1

Components for low-voltage surge protection – Part 332: Selection and application principles for metal oxide varistors (MOV) IEC 61643-332 ED1

General information

60.00 Standard under publication   Mar 8, 2024

PPUB    Apr 19, 2024

IEC

TC 37/SC 37B

International Standard

31.040.20   Potentiometers, variable resistors

Scope

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.

Life cycle

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IN_DEVELOPMENT
IEC 61643-332 ED1
60.00 Standard under publication
Mar 8, 2024