Date：2018-11-10
A circuit breaker is defined as "a switching device that is capable of closing, carrying and breaking current under normal circuit conditions and capable of closing, carrying and breaking current under abnormal circuit conditions within a specified time", simply It is a kind of switch device that can protect the power line, motor, etc. When the power line and the motor suddenly have serious overload or short circuit, the circuit breaker can automatically cut off the circuit to achieve the protection.
