COMB Starter Circuit Breaker,Size 3,480V 60 Hz,NEMA 3R/4/12 Painted,50HP (Mtr Prt), 275A (Fdr Prt),Instantaneous Trip Standard,No options,440/480 VAC 50/60Hz,SMP1,E1+,MRst,Cl20,66 110A,No Fuse Cover,No Auxililiary Contacts,Standard Capacity,Ungrounded Transformer,Incandescent,Incandescent