Product Description"SQUARE D HOMELINE" SINGLE POLE CIRCUIT BREAKER 30 Amp Single Pole Circuit Breaker 1 Space Per Pole 120VFrom the ManufacturerFormat 1". Thermal/magnetic tripping mechanism. 120/240 Volt ac; 10,000 AIC. U.L. Listed as HACR type for use with air conditioning, heating and refrigeration equipment having motor group combinations and marked for use with HACR type circuit breakers. 15and 20 amp switching duty rated for switching 120 Volt fluorescent lighting loads.