For circuit breakers installed in equipment operating at over 1,000V, the interrupter rating of a circuit breaker shall not be less than the maximum fault current the circuit breaker will be required ...
When dealing with adjustable-trip circuit breakers, restricted access is defined in Sec. 240.6(C) of the 2014 NEC as: “located behind one of the following: removable and sealable covers over the ...
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