Common Trip; (2) 1 Pole Outside, (1) 2 Pole Inside Pole; 120/240 Vac At 50/60 Hz (Ul/Csa); 20 Ampere (Outside Pole), 50 Ampere (Inside, Common Trip Pole); Interrupting Rating 10 Kiloampere; Wire Size 12 To 6 Awg (Aluminum), 14 To 6 Awg (Copper)