ELECTRICAL APPARATUS PROTECTING CIRCUIT

PROBLEM TO BE SOLVED: To provide a protection circuit which can shorten the period until the supply of a voltage signal to an electrical apparatus is stopped from the time, the electrical apparatus stops normally or ships for emergency. SOLUTION: There is provided the electrical apparatus protecting circuit, comprising a leakage breaker (1) for suspending supply of power after the passage of a constant period from the detection of a leakage, an electrical apparatus (3) for receiving supply of power via the leakage breaker (1), switching portions (5, 6) one ends of which are connected on the power supply route between the leakage breaker (1) and electric apparatus (3) and the other ends of which are grounded. In this structure, the switching portions (5, 6) are controlled to open or close by means of the electrical apparatus (3), the electrical apparatus (3) controls the switching portions (5, 6) to ground the power supply route, when operation of the electrical apparatus (3) stops, and the leakage breaker (1) suspends the supply of power to detect the leakage condition by the grounding of the power supply route.