Thermal Magnetic, Branch; 3 Pole; 120/240/277 Vac At 50/60 Hz, 480 Vac Star/277 Vac At 50/60 Hz (Ul/Csa); 100 Ampere; Interrupting Rating 25 Kiloampere At 120/240 Vac, 18 Kiloampere At 277 Vac Or 480 Vac Star/277 Vac (Ul/Csa)