ABB TU831 3BSE008530R1 S800 I/O Extended Module Termination Unit

Description

The TU831 3BSE008530R1 is the mounting base for S800 I/O modules, offering 24 terminals for field wiring. As an "Extended" MTU, it provides more space for better wire management and larger I/O components. This passive backplane routes signals between field sensors and I/O electronics, with a keying system to prevent incorrect module insertion. Designed for DIN rail installation, the TU831 supports both individual and redundant ModuleBus configurations, making it ideal for high-reliability process control.

Specifications

• Manufacturer: ABB

• Model Number: TU831 (3BSE008530R1)

• Product Type: Extended Module Termination Unit (MTU)

• Number of Channels: 24 Terminals

• Maximum Voltage: 50 V

• Maximum Current per Terminal: 2 A

• Connection Type: Screw Terminals

• Mounting: Horizontal or Vertical DIN Rail (35mm)

• Compatibility: S800 I/O Modules (AI, AO, DI, DO)

• Protection Class: IP20

• Weight: 0.45 kg

Features

• Efficient Field Wiring: Equipped with 24 high-quality screw terminals that support various wire gauges, facilitating organized and reliable field-side connections.

• ModuleBus Integration: Provides a seamless electrical link to the internal communication bus, ensuring high-speed data transfer to the controller.

• Mechanical Safety Keying: Integrated physical coding ensures only compatible I/O modules can be seated, preventing hardware damage during maintenance.

• Hot-Swap Support: Designed to allow the replacement of I/O modules while the system is powered and operational, minimizing process downtime.

• Rugged Industrial Housing: Constructed from flame-retardant materials suitable for harsh industrial environments and high-density control cabinets.

• Grounding Versatility: Includes dedicated terminals for cable shields and system grounding to improve signal integrity and reduce electromagnetic noise.