Siemens B2125 molded case, thermal magnetic; 120/240 vac at 60 hz (ul); 125 ampere at 40 deg c; 2 pole; interrupting rating 10 kiloampere at 120/240 vac (ul); terminal load lug; size 2 inch w x 3 inch d x 3-3/4 inch h; speedfax[t] brand