A circuit breaker including a housing and a short wired pigtail exiting the housing. The short wired pigtail has a factory length from a point of exit from the housing to a terminal end of less than about 16 cm, and can include pre-configured bends, and may be pre-stripped. In another aspect, a base pan for mounting a circuit breaker is provided. Base pan includes a plurality of busses, and an insulating base portion receiving the busses, the base pan configured to receive a circuit breaker thereon, the insulating base portion including a pigtail guide channel configured to direct a short wired pigtail towards a neutral bar socket as the circuit breaker is mounted to the insulating base portion. Circuit breakers, base pan assemblies, and methods of installing circuit breakers are provided, as are other aspects.
