40.20 Jun 6, 2025
PRVC Aug 29, 2025
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.
IN_DEVELOPMENT
IEC 61643-361 ED1
40.20
DIS ballot initiated: 12 weeks
Jun 6, 2025
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