ABB TU847 3BSE022462R1 MTU module

Product Description

The TU847 (3BSE022462R1) is a specialized Module Termination Unit (MTU) designed for the S800 I/O system to support redundant field communication. Specifically engineered for a 1+1 configuration of CI840 Communication Interfaces, this unit provides the physical and electrical foundation for high-availability PROFIBUS networking. While the modems operate in a redundant pair, the TU847 is optimized to bridge these interfaces to a non-redundant (single) I/O cluster, ensuring consistent data flow even if one communication module requires maintenance or encounters a fault.

Technical Specifications

• Model / Part Number: TU847 (3BSE022462R1)

• Module Compatibility: Designed for dual (1+1) CI840 Communication Interfaces

• I/O Configuration: Supports non-redundant (single) I/O clusters

• Mounting Orientation: Vertical mounting of modules

• Included Components: 1x Power Supply Connector, 1x TB807 ModuleBus Terminator

• Product Type: Module Termination Unit (I-O Module Base)

• HS Code: 85371098

• Voltage Rating: For voltages not exceeding 1000V

• Environmental Compliance: RoHS Directive 2011/65/EU; WEEE Small Equipment category

Key Engineering Features

The TU847 (3BSE022462R1) serves as a critical junction in the S800 I/O station architecture, offering several engineering advantages for industrial control panels:

• Redundant Communication Backbone: Allows the installation of two CI840 modules in a primary/backup arrangement, significantly increasing the reliability of the PROFIBUS DP-V1 link to the controller.

• Vertical Space Efficiency: The vertical mounting design is optimized for narrow cabinet profiles, allowing for high-density I/O lineups without excessive horizontal rail consumption.

• Integrated Termination: The inclusion of the TB807 ModuleBus Terminator ensures that the electrical bus signal is correctly capped, preventing signal reflection and ensuring data integrity across the I/O cluster.

• Mechanical Integrity: Built as a robust, passive unit, it features secure locking mechanisms to maintain electrical contact under industrial vibration conditions.