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Can Multi-9 C60 breakers be continuously loaded to 100% of their rating?

Published date: 18 May 2020

Issue:
Can Multi-9 C60 breakers be continuously loaded to 100% of their rating?

Product Line:
Multi 9 C60 MCB's

Resolution:
UL 489 Listed Multi 9 C60 circuit breakers may be loaded to no more than 80% if used with continuous loads.
UL 1077 recognized supplementary protectors may be operated at 100% of their rating.
IEC 60947-2 C60 breakers may be operated at 100% of their rating.

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