Basic summary of circuit breakers

The circuit breaker (English Name: circuit-breaker circuit, breaker) refers to the closing, carrying and breaking current loop in normal conditions, and can close, carrying and breaking abnormal circuit conditions within the prescribed period of time (including short-circuit conditions) under current switching device.

The circuit breaker can be used to distribute electricity, not frequently start asynchronous motors, the protection of the power line and a motor, can automatically cut off the circuit when they occur serious overload or short circuit and under voltage fault combination, its function is equivalent to the fuse switch and less thermal relay etc.. And no need to change parts after breaking the fault current. At present, it has been widely used.