Combination Type Arc-Fault Circuit Interrupter. Available in 1 2 Pole, 15A 20A. New and improved electronics. 1/4'' more wiring bend space than our previous design. Both lugs at the same angle - for easier wiring. Plug-in or bolt-on branch circuit breakers for Siemens single phase load centers or panel boards. Available with interrupting rating of 10kA, 22kA or 65kA. UL Listed. Ratings: HACR, SWD. 120 Volts AC. Wire range: #14 – #8 AWG Cu; #12 – #8 AWG Al. Torque rating: 25 lb. in.