Residential electrical branch circuit breakers incorporate electronic and electrical technology in Arc Fault Circuit Interrupters that can turn off power to prevent fires if arcing occurs. This ...

The multi-wire branch is here to stay; so is ground fault protection. But we should unite these technologies only when it’s a good match. Ground-fault protection and the multi-wire branch circuit ...

While the number of residential fires has been significantly reduced over the last 20 years, the National Fire Protection Association reports there remain more than 45,000 fires related to electrical ...

A core-balance protection device serves as an example of how these switches operate. Phase and neutral power conductors pass through a toroidal (differential) current transformer. Under normal ...

What is this new circuit breaker, the Arc Fault Circuit Interrupter (AFCI), and how is it better than the circuit breakers (CBs) we have? Let me tell you a little story. Recently, I was working in a ...