A 240-volt service powers heavy-duty appliances like ovens, air conditioners, water heaters and electric dryers. If something goes wrong in that panel, it may cause those systems to fail, damage the ...

All questions and answers are based on the 2011 NEC. Q. What is the Code requirement for the use of slash versus straight voltage rated breakers? A. A circuit breaker with a straight voltage rating, ...

What you don’t know about circuit breaker markings can trip you up. Most of us pay little attention to markings on circuit breakers. Yet, these markings can be the difference between a safe ...

Churning with voltage and resembling an explosion at the wire factory, the breaker panel exudes mystique. But it's just a big switch, filled with other smaller ­switches, which lead to the switches ...

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 ...