ABB 1SDA054041R1 BKR T4S 250A 4P LSI F IEC Description Description ABB 1SDA054041R1 BKR T4S 250A 4P LSI F IEC Related products ABB 2TLA040037R1300 ABB 2TLA042023R0100 ABB 3HNE00313-1 ABB FPR3600227R1202 ABB 3BSE013230R1 ABB 3BSE008510R1