... current and over temperature in AC & DC motor (especially large power), Sodium Lamps, metal halide rectifier, fluorescent ballast, transformer, ... house-holding appliances.RATED VOLTAGE: AC250V,DC24V (ACCORDING TO CUSTOMERS REQUIREMENT)TRIP CURRENT: 20A~60A (ACCORDING TO ... SERIES THERMAL PROTECTOR (THERMOSTAT,THERMAL SWITCH,TEMPERATURE SWITCH,CURRENT PROTECTOR)