' Plug In Circuit Breaker, Amps 20, Number of Poles 2, Circuit Breaker Type Standard, AC Voltage Rating 120/240VAC, DC Voltage Rating Not Rated, For Use With Challenger and Thomas and Betts Load Centers, Series UBITBA, Terminal Connection Lug, Min. Wire Size 14 AWG, Max. Wire Size 4 AWG, Length 3.35 In., Width 1.00 In., Depth 2.60 In., Standards UL, ETL Listed, Max. AIR Rating 10kA '