Product Description
ABB TU847 Module termination unit
The ABB TU847 is a Module Termination Unit (MTU) designed for the S800 I/O system. It is specifically engineered to accommodate redundant I/O modules, providing a reliable and robust connection for critical process control applications. The TU847 mounts on a standard DIN rail and features two ModuleBus connections, enabling seamless communication with a pair of redundant I/O modules. It also includes two 24V DC power connections for redundant power supply, ensuring high availability and system integrity. This unit is an essential component for building fault-tolerant control systems using ABB’s S800 I/O platform.
Technical Specifications:
- Model: TU847
- Part Number: 3BSE022462R1
- Product Type: Module Termination Unit (MTU)
- Application: Redundant I/O Modules (e.g., AI845, AO845)
- System Compatibility: ABB S800 I/O
- Mounting: Standard DIN Rail
- Power Supply: Dual 24 V DC inputs
- Process Connection: D-Sub 25-pin connector

ABB TU847 Module termination unit
Buy the ABB TU847 (3BSE022462R1) Module Termination Unit for redundant S800 I/O applications. This DIN rail mounted unit ensures high availability for critical control systems.







