SCB8LE earth leakAge circuit breaker is used for the protection,against electrical leakAge in the circuit of 50/60Hz, rated voltage single-phase 230V, 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 RCD can cut off the power within the time of 0.1s automatically protecting the equipment from the fault resulted by the residual current.