3BSE013231R1 | TU811V1 | ABB Industrial Termination Module

Product Description

The TU811V1 (Part Number: 3BSE013231R1) is a high-reliability Compact Module Termination Unit (MTU) designed for the ABB S800 I/O system. While often grouped with temperature transmitters in general catalogs, its primary engineering role is as the physical and electrical interface for S800 I/O modules. The TU811V1 provides a structured termination point for field wiring, distributing 24 VDC power and the ModuleBus signal to the mounted I/O module.

Engineered for space-constrained industrial cabinets, the TU811V1 3BSE013231R1 supports 2-wire field connections and is optimized for use with I/O modules that require a shared return or common power distribution. The unit features a robust DIN rail mounting mechanism and integrated locking to ensure high vibration resistance. Its design facilitates "hot-swapping" of I/O modules, allowing for maintenance and replacement without disconnecting field wiring or interrupting the communication on the rest of the ModuleBus string.

Detailed Technical Specifications

The TU811V1 provides the structural foundation for deterministic S800 I/O signal management.

• Manufacturer: ABB

• Model Number: TU811V1

• Part Number: 3BSE013231R1

• Product Type: Compact Module Termination Unit (MTU)

• Maximum Voltage: 50 V (Rated Isolation)

• Maximum Current per I/O Channel: 2 Amps

• Field Wiring Terminals: 1x12 terminals (Single row)

• Connector Type: Compression or Spring-style (configuration dependent)

• Module Support: Compatible with various S800 I/O modules (AI, AO, DI, DO)

• Operating Temperature: -40°C to +85°C (-40°F to +185°F)

• Storage Temperature: -40°C to +85°C (-40°F to +185°F)

• Mounting: 35mm DIN rail

• Ingress Protection: IP20 (Industrial cabinet internal use)

• Dimensions: 130 mm x 75 mm x 65 mm

• Weight: 0.6 kg

• Certifications: CE, ATEX, IECEx, SIL2 Compliant (System certified)