A circuit breaker that trips repeatedly is often assumed to be defective, but that assumption is frequently wrong. Breakers respond to conditions downstream, and replacing one without understanding ...

We may receive a commission on purchases made from links. Without circuit breakers, the electricity running through your walls could damage wiring and cause fires. There are several reasons why you ...

Testing a circuit breaker is about judging reliability under fault conditions, not just checking continuity or voltage. A ...

Q: Every few hours—sometimes minutes!—my living room and one side of my kitchen lose electrical power. I’ll check the breaker panel and, sure enough, a circuit breaker has tripped…again. Should I call ...