As discussed in Part 1, the interrupting ratings of low-voltage circuit breakers and fuses are classified on a symmetrical-current-rated basis. In this context, “symmetrical-current-rated” implies ...

Most people understand, too, that the breaker will trip if you overload the circuit with too many things plugged in or with an accidental short circuit. But how does this common device actually work?

However, selective coordination of circuit breakers is a possibility. In fact, in many cases, breakers that do not appear to selectively coordinate (based solely upon their individual curves) do ...

Thermal-magnetic circuit breakers contain two different switching mechanisms, a bimetal switch and an electromagnet.

Electric drives require effective protection against overloads and short circuits. Both phenomena cause motor disruption and create a risk of damage to the motor. This could lead to a potentially ...

Is there a circuit breaker in your home that keeps tripping? It may need to be replaced. Fortunately, testing and replacing a breaker is something you can do.