S800 I/O

The ABB 3BSE013235R1 TU831V1 is an extended MTU with 8 I/O channels at 250V and 3A per channel. It supports larger wires up to 10 AWG. This unit distributes ModuleBus and generates correct addressing for I/O modules. Perfect for DI820, DI821, DO820, and DO821.

The ABB 3BSC690075R1 TU890 is a compact MTU for S800 I/O systems. It connects field wiring and power supply to I/O modules. This passive unit handles up to 8 channels at 50V and 2A per channel. It supports intrinsic safety applications with selected modules.

The ABB TU890 is a compact MTU for S800 I/O systems. This passive termination unit connects field wiring and power to I/O modules. It supports intrinsic safety applications with AI890, AO890, DI890, and DO890 series. Maximum 2A per channel at 50V. Designed for DIN rail mounting.

The CI801 is a PROFIBUS-DPV1 communication interface module for ABB S800 I/O systems. It acts as a fieldbus slave connecting I/O modules to a controller. It supports HART pass‑through, hot configuration, isolated power, and holds ATEX, marine, and hazardous location certifications.