Square D EDB34060 branch, thermal magnetic; 3 pole; 120/240/277 vac at 50/60 hz, 480 vac star/277 vac at 50/60 hz (ul/csa); 60 ampere at 40 deg c; interrupting rating 25 kiloampere at 120/240 vac, 18 kiloampere at 480 vac star/277 vac or 277 vac