R890 – TU842 Redundant MTU Description Description R890 – TU842 Redundant MTU, 50V Used with redundant I/O. Horizontal DIN rail mounting. Related products ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE082895R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE066495R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE066490R1 Read more