SM7LE-63 series mini leakage circuit breaker is used for the protection, against electrical leakage in the circuit of 50Hz or 60Hz, rated voltage single-phase 240V, 3 phase 415V, rated current up to 60A. When somebody gets an electric shock or the residual current of the circuit exceeds the fixed value, the breaker can cut off the power within the time of 0.1s automatically protecting the personal safety and preventing the equipment from the fault resulted from residual current. With this function, the breaker can protect the circuit against overload and short circuit or can be used for the unfrequent switch over of the circuit under normal conditions. It conforma to standards of IEC60898, IEC60755.