ABB 1SDA054039R1 BKR T4S 100A 4P LSI F IEC Description Description ABB 1SDA054039R1 BKR T4S 100A 4P LSI F IEC Related products ABB GJV3074397R1 ABB 3BSE008510R1 ABB 2TLA040001R1200 ABB 2TLA042021R8100 ABB 1SFN075112R1000 ABB 3BSE008516R1