50.00 Dec 5, 2025
CFDIS Feb 27, 2026
IEC
TC 37/SC 37B
International Standard
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.
PROJECT
IEC 61643-361 ED1
50.00
Final text received or FDIS registered for formal approval
Dec 5, 2025
Low-voltage surge protective components - Part 361: Surge isolation transformers (SITs) connected to low-voltage distribution system - Requirements and test methods
40.60 Close of voting