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Molded Case Breaker Current Interrupting Rating
https://brainfiller.com/arcflashforum/viewtopic.php?f=33&t=5144
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Author:  MP Storm [ Tue Jul 23, 2019 12:19 pm ]
Post subject:  Molded Case Breaker Current Interrupting Rating

Have some information on old ITE molded case breakers. The information identifies two interrupting ratings. UL 10kA and NEMA 15kA. I am trying to determine what the differecne is between the UL and NEMA ratings. The breakers were manufactured in the early 1950's.

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