A miniature circuit breaker (MCB) is an automatically operated electrical switch that shields or protects low-voltage circuits from damage caused by overcurrent, overload, or a short circuit. These ci...

A miniature circuit breaker (MCB) is an automatically operated electrical switch that shields or protects low-voltage circuits from damage caused by overcurrent, overload, or a short circuit. These circuit breakers have adjustable running surface properties. They can be thermal or thermal-magnetic in operation..