ABB TU865 3BSE078712R1 Ethernet FCI Module Termination Unit

Description

The TU865 3BSE078712R1 provides a durable platform for Ethernet-based communication modules on a DIN rail. It routes high-speed network traffic and dual power feeds to the communication interface, supporting fault-tolerant configurations with redundant power supply terminals. The TU865 allows hot-swapping of modules, ensuring uninterrupted process control during maintenance or upgrades. Optimized for the System 800xA environment, it offers a secure, noise-resistant hub for modern industrial Ethernet protocols.

Specifications

• Manufacturer: ABB

• Country of Origin: Sweden

• Model Number: TU865

• Order Number: 3BSE078712R1

• Product Type: Module Termination Unit (MTU)

• Weight: 0.50 kg

• Interface Compatibility: Ethernet Field Communications Interface (FCI)

• Power Supply: Dual 24 V DC redundant inputs

• Maximum Current: 5 A

• Mounting: 35mm standard DIN rail

• Protection Rating: IP20

• Operating Temperature: -25 to +70 °C

Features

• Ethernet FCI Support: Tailored specifically for Ethernet field communication interfaces to ensure seamless integration into high-speed industrial networks.

• Redundant Power Management: Features dedicated terminals for two independent power sources, providing electrical redundancy to prevent station downtime.

• Hot-Swap Compatibility: Engineered to allow module replacement while the system is energized, maintaining I/O cluster availability during servicing.

• Passive Reliability: Utilizes a hardware-only signal routing design with no active electronic failure points, significantly increasing the unit's MTBF.

• Mechanical Safety Coding: Includes physical keying pins to prevent the installation of incompatible modules, protecting the system from electrical mismatch.

• Vibration-Resistant Terminals: High-retention terminal blocks ensure stable connections for power and signals in harsh, high-vibration industrial settings.