If you're having circuit breaker issues, you'll want to use safe troubleshooting tools. Luckily, Klein Tools has several to ...

Ground-fault circuit interrupters (GFCI) are specifically designed to monitor for ground faults, but regular circuit breakers ...

See? Good and evil. An RCD (or GFCI in the States) is a kind of circuit breaker that trips when the amount of current in the hot and neutral mains power lines aren’t equal and opposite ...