The Eaton Challenger 15 Amp 1 in. Double-Pole Type A UBI Replacement Circuit Breaker is for use with Challenger or Thomas and Betts load centers. This breaker features 2 poles for typical applications, such as well pumps, small appliance circuits, wall heaters and 1-1/2 - 2 HP electric motors. The HACR-rated circuit breaker has a maximum ...