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Are the NSJ and D frame breakers derated when used in drawout or plug-in construction?

Our UL procedure does not require derating the NSJ or D Frame when used in plugin or drawout construction.

NSJ/DJ are 100% rated 400 A and below
NSJ/DJ are 80% rated for 600 A

The IEC product requires a derating of 10%

CTA-ID : 2053092
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