Question

why are MCB preferred over electric fuse

Answer 1

MCB stands for Miniature Circuit Breaker.It preferred over electric fuse because it controls the flow of electric current.

Answer 2

Mcb prefer over electric fuse because  in electric fuse when the current flows beyond the limit. The wire become too hot and break. And mcb(Miniature circuit Breaker) automatically turn off when current exceeds it's safety limit.