ABB 1084-0-0821 2601/2 WDI Switch, SM Alpha Bs Description Description ABB 1084-0-0821 2601/2 WDI Switch, SM Alpha Bs Related products ABB 3BSE008510R1 ABB 3HNE00313-1 ABB 2TLA040001R1300 ABB 2TLA040001R1200 ABB 2TLA040001R1000 ABB 2TLA040037R1000