ABB TU847Z 3BSE022462R1 S800 I/O Redundant Module Termination Unit

Description

The ABB TU847Z is a redundant Module Termination Unit (MTU) for the S800 I/O system, designed to host two I/O modules for high availability in critical applications. It manages signal routing, power distribution, and ModuleBus communication, ensuring continuous operation during module failure—ideal for power plants, refineries, and large-scale industrial systems.

Specifications

• Manufacturer: ABB

• Model Number: TU847Z

• Order Number: 3BSE022462R1

• Product Type: Redundant Module Termination Unit

• Maximum Channels: 16 (8 per module slot)

• Maximum Voltage: 50V DC

• Maximum Current per Channel: 2A

• Mounting: Horizontal 35mm DIN Rail

• Connection Type: Two-row screw terminals

• Weight: 0.55 kg

Features

• Full Redundancy Support: Accommodates two identical I/O modules to prevent process interruption through automatic hardware switchover.

• Hot-Swap Capability: Allows for the replacement of a faulty module while the redundant partner continues to manage live field signals.

• Robust Signal Integrity: Features high-quality terminal blocks designed to withstand industrial vibration and provide stable electrical contact.

• Mechanical Keying: Includes integrated safety slots to ensure that only the correct module types are inserted, preventing electrical mismatch errors.

• Extended Service Life: Built with passive backplane components to maximize MTBF (Mean Time Between Failures) in demanding environments.

• Efficient Cable Management: Dual-row terminal arrangement provides clear separation for field wiring, simplifying installation and long-term maintenance.