This is the first of a two-part series on the processes used to find the short circuit current duties of circuit breakers and fuses. In Part 1, we’ll use a simplified power system to illustrate the ...

In solar PV systems, circuit breaker selection is something that is easily overlooked and time should be taken to select the correct solution. If the circuit breaker is not appropriate, it will cause ...

Article 430 in the National Electrical Code (NEC) recognizes two types of molded case circuit breakers (MCCBs) — instantaneous and inverse time — for motor branch circuit short circuit and ground ...

Double-tapped circuit breakers are one of the most common electrical defects that home inspectors find. Everyone seems to sign off on this defect as a 'big deal', but I'm here to tell you it's not. It ...