Square D,MINIATURE CIRCUIT BREAKER 120/240V 45A,1-Phase,10kA,120/240 Vac,2P,45A,Box Lugs #8 to #2 AWG(Al/Cu),Calibrated for use at 40 degrees C. See Data Bulletin 0100DB0101 for re-rating information.,Fiberglass filled thermoset molding material.,HACR rated,Miniature Circuit Breaker,QO,Standard Plug-On,UL Listed - CSA Certified