ABB TU811

The ABB TU811 is a compact modular termination unit (MTU) used primarily in ABB industrial automation systems as a bridge between I/O modules and field equipment. It provides a reliable, flexible platform for connecting various types of sensors, actuators and other field devices. The TU811 module is typically installed on the I/O module of ABB industrial controllers to extend the number of I/O points and improve system reliability.

Product parameters and specifications:
Type: Module Termination Unit (MTU)

Function: Connect field devices to I/O modules
Number of channels: Usually 8 or 16 channels
Voltage level: can support a variety of voltage levels, such as 24V DC, 110V AC and so on
Signal type: Support digital input, digital output, analog input, analog output, etc
Mounting method: DIN rail mounting
Protection Class: IP20 (usual)

Operating temperature: -20℃ ~ +70℃
Main functions:
Signal isolation: Provides electrical isolation between input and output to improve system reliability.
Signal conversion: The signal of the field device is converted into a signal that the controller can recognize.
Signal protection: provides protection functions such as overvoltage and overcurrent.
Flexible configuration: Flexible configuration based on different application requirements.
Application field:
Process control: Used to connect temperature sensors, pressure sensors, flow meters, etc.
Machine automation: for connecting switches, relays, motors, etc.