ABB TU844 Redundant Horizontal MTU 3BSE021445R1

Overview

The TU844 is an 8-channel termination unit (MTU) designed for redundant S800 I/O modules, providing seamless connections for field wiring and process power. This passive unit is mounted on a horizontal DIN rail, distributing power and data to I/O modules. It ensures smooth integration with the ABB AI845, AI880, AI880A, and DP840 modules, making it ideal for 50V applications in industrial automation.

Technical Specifications

• Brand: ABB
• Model: TU844
• Model Suffix: Redundant Horizontal MTU
• Process Connections: 8 I/O channels, 2 terminals per channel
• Rated Maximum Continuous Current: 2 A per I/O channel, 5 A per process voltage connection
• ModuleBus Distribution: 5V (1.5A), 24V (1.5A)
• Wire Size: Solid: 0.2 – 4 mm², Stranded: 0.2 – 2.5 mm², 24 – 12 AWG
• Protection Rating: IP20 (IEC 60529), Class I (IEC 61140)
• Mounting: DIN Rail, with mechanical latch for secure installation
• Weight: 0.6 kg (1.3 lbs.)
• Dimensions: Width 131 mm (5.16″), Depth 64 mm (2.52″), Height 186.5 mm (7.34″)

FAQ

Q: What is the rated voltage and current for the 3BSE021445R1?
A: It supports a maximum rated voltage of 50 V and a continuous current of 2 A per I/O channel.

Q: How many configurations are possible for the I/O modules?
A: The MTU allows for 36 different configurations, offering versatile module compatibility with mechanical keys.

For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units