What's the difference between a short-circuit current rating (SCCR) and an interrupting rating (IR)? If you're not sure, clearing up the confusion could be as simple as brushing up on your definitions ...
Short circuit current ratings should not be overlooked during panel design. Negative impacts can occur to production, equipment and, worst case, plant personnel. Per 2014 NEC Article 100, short ...
All questions and answers are based on the 2011 NEC. Q. What is the Code requirement for the interrupting protection rating of overcurrent devices? A. Overcurrent devices, such as circuit breakers and ...
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