APPARATUS FOR PREVENTING OVERHEAT OF EARTH LEAKAGE CIRCUIT BREAKER

摘要

PURPOSE: An apparatus for preventing overheat of an earth leakage circuit breaker is provided to prevent an accident such as a fire by sensing automatically an over-heat phenomenon due to a defect generated from a contact portion of an input portion of the earth leakage circuit breaker. CONSTITUTION: An input portion(I) is connected to one side of a connection portion of an earth leakage circuit breaker(10) by using a conductive line. A load portion(P) of the acceptable side is connected to the other side of the connection portion of the earth leakage circuit breaker(10). The earth leakage circuit breaker(10) is installed between the input portion(I) and the load portion(P) in order to perform a function of the earth leakage circuit breaker for preventing over-current generated from the load side. A thermal sensor(20) is installed nearly to the connection portion. A circuit breaker driving circuit(30) is installed in the inside of the earth leakage circuit breaker(10).