ABB TU818 Compact MTU 3BSE069209R1

Overview

The TU818 is a compact module termination unit (MTU) for ABB’s S800 I/O system. It is designed for field wiring connections to I/O modules and includes features like mechanical keying for module configuration and DIN rail mounting for easy installation. This passive MTU connects up to 32 I/O channels and handles process power connections of up to 50V, making it ideal for various industrial applications.

Features

• 50V Applications: Compatible with a wide range of I/O modules, including AI810, AI815, AI835A, DI810, DI811, DI880, DP840, etc.
• Compact Design: Mounts easily on a DIN rail, with a mechanical latch for secure attachment.
• ModuleBus Connection: Distributes signals to I/O modules and additional MTUs.
• I/O Configuration: Mechanical keys for up to 36 different module configurations.
• High Current Handling: 2.5A max per I/O channel, 8A max per process voltage connection.
• Process Signal Terminals: 40-pole screw terminal, with two isolated groups for 16 connections each.

Technical Specifications

• Brand: ABB
• Model: TU818
• Rated Voltage: 50V
• Max Current per Channel: 2.5A
• Max Current per Process Voltage Connection: 8A (L1+, L2+)
• ModuleBus Current Distribution: 1.5A (5V) / 1.5A (24V)
• Wire Size Compatibility:
  • Solid: 0.5 – 2.5 mm²
  • Stranded: 0.5 – 1.5 mm²
• Mechanical Key Configurations: 36 combinations
• Protection Rating: IP20 (IEC 60529)
• Class II Equipment: Earth protected (IEC 61140)
• Width: 64 mm (2.52”)
• Depth: 64 mm (2.52”)
• Height: 170 mm (6.7”)
• Weight: 0.17 kg (0.37 lbs.)
• Rated Insulation Voltage: 50V
• Dielectric Test Voltage: 500V AC

FAQ

1. What is the 3BSE069209R1 used for?
   It is used to connect field wiring to ABB S800 I/O modules, distributing power and signals effectively.
2. Can I replace the termination board while the system is operational?
   Yes, the top part of the MTU can be removed for replacement without shutting down the system.
3. What I/O modules are compatible with the 3BSE069209R1?
   It works with a variety of ABB I/O modules like AI810, DI880, and others.
4. What is the max current the 3BSE069209R1 can handle?
   It can handle up to 2.5A per I/O channel and 8A per process voltage connection.

For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units