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 ...

It’s a wise idea to add a heavy duty circuit breaker, very large fuse, or a fusible link in the main power circuit for 1960s General Motors cars between the battery and the main bus bar feed to the ...

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 ...