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 ...

Understanding Circuit Breaker Markings 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 ...

Why are people scared of fuses? A properly installed fuse is just as safe as a circuit breaker, but there are many reasons why fuse panels can have problems.