Cutler Hammer BAB1045V thermal magnetic; 1 pole; 120/240 vac; 45 ampere at 40 deg c; interrupting rating 10000 ampere at 120/240 vac, 5000 ampere at 24 to 48 vdc, 3800 ampere at 62.5 vdc; extended tang line terminal terminal; bolt on mounting; approval ul 489, csa