R480 – DI820 Digital Input 120V a.c. 8 ch Description Description R480 – DI820 Digital Input 120V a.c. 8 ch Individually galvanic isolated channels. Use Module Termination Unit TU811, TU813, TU831, TU839, TU851. Related products ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE081636R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE076355R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSC630197R1 Read more