ABB TU831/TU831V1 Extended MTU

Overview

The TU831/TU831V1 is an 8-channel extended termination unit (MTU) designed for the ABB S800 I/O system. This MTU is a passive unit that connects field wiring to I/O modules, distributing the ModuleBus and generating addresses for the I/O modules. It supports up to 250 V rated voltage and 3 A maximum current per channel, providing a robust connection for industrial applications.

Technical Specifications

• Brand: ABB
• Model: TU831/TU831V1
• Rated Maximum Continuous Current per Channel: 3 A
• ModuleBus Current Distribution:
  • 5 V: 1.5 A
  • 24 V: 1.5 A
• Wire Size Compatibility:
  • Solid: 0.2 – 6 mm²
  • Stranded: 0.2 – 4 mm², 24 – 10 AWG
• Torque Range: 0.5 – 0.6 Nm
• Stripping Length: 7 mm
• Mechanical Keys: 36 configurations
• I/O Module Lock: Yes, locks module in position
• Protection: IP20 (IEC 60529)
• Insulation Voltage: 250 V
• Dielectric Test Voltage: 2000 V AC
• Dimensions:
  • Width: 126 mm (5”)
  • Depth: 64 mm (2.52”)
  • Height: 110 mm (4.3”)
• Weight: 0.22 kg (0.48 lbs.)

FAQ

• Q: What is the maximum current per I/O channel?
  A: The maximum current per I/O channel is 3 A.
• Q: How many channels does the TU831/TU831V1 support?
  A: The MTU supports up to 8 isolated I/O channels.
• Q: What is the protection rating of the TU831/TU831V1?
  A: It has an IP20 protection rating according to IEC 60529.
• Q: Can I change the configuration of the MTU?
  A: Yes, the MTU has mechanical keys for configuring 36 different settings.

For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units