The ABB 3BSE020848R1 (Type TU841) is a dedicated Module Termination Unit (MTU) designed for the S800 I/O system. It serves as the essential mounting and connection interface for a 1+1 TB840 Cluster Communications Interface (CCI) configuration. Specifically engineered for non-redundant I/O clusters, the TU841 provides the physical housing, power distribution, and signal termination necessary to integrate I/O modules into the larger Modulebus architecture. By centralizing power and bus termination, it ensures stable data exchange between the field devices and the controller.
Technical Specifications
Product ID:3BSE020848R1
ABB Type Designation:TU841
Product Type:Module Termination Unit (MTU)
Application Support:Non-redundant I/O (1+1 TB840)
Included Accessories:1x Power Supply Connector, 1x TB807 Modulebus Terminator
Dimensions (W x H x D):124 mm x 186 mm x 47 mm
Net Weight:0.45 kg
Voltage Rating:For systems not exceeding 1000V (HS Code context)
HS Code:853710 (Electrical control and distribution)
Key Features
Integrated Modulebus Termination:Comes pre-packaged with the TB807 Modulebus Terminator, ensuring the communication bus is correctly terminated to prevent signal reflections and data loss.
Streamlined Power Distribution:Includes a dedicated power supply connector, allowing for a secure and organized power feed to the communications interface modules without complex jumper wiring.
Optimized for S800 I/O:Specifically tailored for the TB840 cluster interface, providing a perfect mechanical fit that reduces the risk of vibration-induced connection issues.
Industrial Durability:Compact 47mm depth allows for high-density cabinet mounting while maintaining the thermal and mechanical integrity required for continuous process control.
Standardized Interface:Simplifies maintenance by allowing the TB840 modules to be hot-swapped or replaced without disconnecting the permanent field or power wiring from the MTU.
