What is the difference between a fuse and a miniature circuit breaker?

Miniature circuit breakers are resettable circuit protection that trips when a circuit tries to draw too much current. After tripping, the breaker can be reset and used again. A fuse is a one-time use form of circuit protection that blows when too much current is drawn.

What are the advantages of miniature circuit breaker?

Miniature circuit breakers are more sensitive and trip faster than typical fuses. They are also easier to diagnose issues and resume operation than fuses.