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IEC 61643-361 ED1

Low-voltage surge protective components - Part 361: Surge isolation transformers (SITs) connected to low-voltage distribution system – Requirements and test methods

General information

50.00     Dec 5, 2025

CFDIS    Feb 27, 2026

IEC

TC 37/SC 37B

International Standard

Scope

This part of 61643 applies to surge isolation transformers (SITs) dedicated to surge mitigation and for connection to 50/60 Hz power circuits and equipment rated up to 1 000V rms. Surge and mitigation performance and standard methods for testing and rating were established.

Life cycle

NOW

PROJECT
IEC 61643-361 ED1
50.00 Final text received or FDIS registered for formal approval
Dec 5, 2025

National adoptions

Low-voltage surge protective components - Part 361: Surge isolation transformers (SITs) connected to low-voltage distribution system - Requirements and test methods

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