ABB TU812V1 3BSE013232R1 Compact Module Termination Unit

Overview

The ABB TU812V1 (Part Number: 3BSE013232R1) is a compact, single-slot Module Termination Unit (MTU) designed for the S800 I/O platform. It functions as a non-redundant, passive interface baseplate that connects a single S800 I/O module to the ModuleBus, providing a 50V-rated field routing path with a D-sub 25-pin connector interface for streamlined marshalling cable connections.

Technical Specifications

• Product Type: Compact Module Termination Unit (MTU) with D-Sub Interface
• Model Code: TU812V1
• Part Number: 3BSE013232R1
• Manufacturer: ABB
• System Family Compatibility: S800 I/O System
• Channel / Module Capacity: Single-slot layout (1 module per MTU)
• Maximum Rated Isolation Voltage: 50 V AC/DC
• Maximum Continuous Current per Channel: 1.5 A
• Terminal Connection Type: 1x D-sub 25-pin male connector (for multi-core process cables)
• Ingress Protection Rating: IP20 (IEC 60529 Compliant)
• Conformal Coating: Factory standard protection for harsh environment reliability
• Mounting Style: Horizontal or Vertical 35 mm DIN Rail
• Physical Dimensions: 17.1 cm x 5.8 cm x 4.2 cm
• Product Net Weight: 0.14 kg

Installation Notes

• Snap the TU812V1 MTU firmly onto the cabinet DIN rail until the rear locking mechanism fully engages.
• Ensure the integrated grounding clip makes solid, paint-free contact with the metallic rail to guarantee reliable EMI/RFI shielding.
• Set the mechanical keying wheels on the MTU face to exactly match the designated keying profile of the target S800 I/O module before slotting the electronics in.
• Secure the D-sub 25-pin wiring harness tightly onto the connector socket using the integration locking screws to prevent loose communication or signal loops.