Tandem breakers also have two switches. They take a single slot inside the circuit breaker panel and turn it into two 120-volt circuits to save space. Learn to fix a tripping circuit breaker.

Unlike a double-pole breaker, which serves a single 240-volt circuit, a tandem serves two 120-volt circuits; it cannot be used to supply 240 volts to a single circuit. A different type of doubled ...

This is where circuit breaker testers become essential tools in your arsenal. While not as common as typical hand tools, circuit breaker finders are a safe way to pinpoint the breaker connected to ...