ABB TU819 Compact MTU 3BSE068891R1

Overview

The TU819 Compact MTU (Module Termination Unit) is a passive device used for connecting field wiring in the ABB S800 I/O system. This 50V unit provides 32 signal connections and integrates with DI818 and DO818 I/O modules. The compact design features a D-Sub 25-pin connector for easy installation and termination.

Key Features

• Voltage Rating: 50V for use with DI818 and DO818 I/O modules.
• Compact Design: Mounts on a DIN rail and uses a D-Sub 25 pin (male) connector for process signal connection.
• Mechanical Keying: Prevents wrong I/O module insertion with 36 possible configurations.
• Signal Distribution: Distributes the ModuleBus and assigns the correct address to I/O modules.
• I/O Module Locking: Includes a locking mechanism to secure I/O modules and maintain system stability.
• DIN Rail Mounting: Equipped with a latching device for secure mounting and grounding.

Technical Specifications

• Brand: ABB
• Model: TU819
• Voltage Rating: Maximum 50V
• Current Rating per Channel: 2.5A (continuous)
• ModuleBus Distribution:
  • Maximum 5V current: 1.5A
  • Maximum 24V current: 1.5A
• Process Connections: Two D-Sub 25 pin (male) connectors
• I/O Signals: Up to 32 signals
• Mechanical Keys: 36 different configurations (2 keys with 6 positions each)
• Dimensions:
  • Width: 64mm (2.52”) including connector, 58.5mm (2.3”) edge-to-edge installed
  • Depth: 64mm (2.52”), including terminals
  • Height: 170mm (6.7”) including latch
• Protection Rating: IP20 (IEC 60529)
• Rated Insulation Voltage: 50V
• Dielectric Test Voltage: 500V AC
• Weight: 0.17kg (0.37lbs.)
• Application: Used in industrial automation and control systems for I/O termination in ABB S800 series.

FAQ

Q: What is the purpose of the mechanical keying in the TU819?

A: The mechanical keying prevents incorrect I/O module installation, ensuring the correct configuration is used for your system.

Q: What is the maximum rated continuous current for the I/O channels?

A: The TU819 supports a maximum continuous current of 2.5A per I/O channel.

For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units