ABB S273-K20 Description Description ABB CIRCUIT BREAKER 20AMP 3POLE 277/480VAC Related products ABB 2TLA040001R1000 ABB 2TLA042021R8000 ABB 2TLA040037R1000 ABB 3BSE013230R1 ABB 3BSE008508R1 ABB 2TLA040037R0900