TU811/TU811V1 ABB Compact MTU 3BSE013231R1

Overview

The ABB TU811/TU811V1 Compact Module Termination Unit (MTU) is specifically designed for S800 I/O systems. This passive unit seamlessly connects field wiring to I/O modules and includes part of the ModuleBus for efficient communication. It accommodates up to 8 I/O channels, ensuring high reliability in industrial automation environments. Built with robust features like mechanical keying to prevent errors and DIN rail mounting for secure grounding, the TU811/TU811V1 is ideal for compact installations.

Technical Specifications

• Brand/Model: ABB TU811/TU811V1
• Channel Capacity: 8 I/O channels with 2 terminals per channel (16 process connections).
• Rated Voltage: Maximum 250 V.
• Current Ratings:
  • Continuous: 3 A per I/O channel
  • ModuleBus: 1.5 A (5 V) and 1.5 A (24 V)
• Wire Compatibility:
  • Solid: 0.2 – 4 mm²
  • Stranded: 0.2 – 2.5 mm² (24 – 12 AWG)
• Torque: 0.5 – 0.6 Nm recommended.
• Stripping Length: 7 mm.
• Dielectric Strength: 2000 V AC.
• Dimensions:
  • Width: 64 mm
  • Depth: 64 mm
  • Height: 170 mm
• Weight: 0.17 kg (0.37 lbs).
• Suffix Significance:
  • V1: Represents version differentiation for compatibility and upgrades.
• Protection: IP20 according to IEC 60529.

FAQ

1. What is the purpose of mechanical keying in the TU811/TU811V1?
   Mechanical keying prevents incorrect I/O module insertion, ensuring operational safety and reliability.
2. What I/O modules are compatible with this MTU?
   It is compatible with DI820, DI821, DO820, and DO821 I/O modules.
3. How many I/O channels does the TU811/TU811V1 support?
   The MTU supports up to 8 isolated I/O channels with 2 terminals per channel.
4. What is the significance of the V1 suffix in the model number?
   The V1 suffix indicates an upgraded or specific version of the TU811 designed for improved performance and compatibility.
5. What is the maximum current capacity per I/O channel?
   Each I/O channel supports a maximum continuous current of 3 A.

For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units