I/O Field Wiring Interface | ABB TU811 3BSE008526R1 S800
Manufacturer: ABB
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Part Number: TU811 3BSE008526R1
Condition：New with Original Package
Product Type: Field Wiring Interfaces
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The ABB TU811 (Spare Model: 3BSE008526R1) serves as a high-density, compact Module Termination Unit (MTU) within the S800 I/O architecture. This unit provides the essential mechanical and electrical bridge between field-side wiring and active S800 I/O modules. Designed for seamless integration with AC 800M controllers, the TU811 facilitates signal distribution and power routing through a centralized baseplate. Its ruggedized Swedish design handles the rigorous demands of process industries, providing a stable platform for mission-critical automation. Every unit we supply is 100% brand new and original, arriving in factory-sealed packaging to ensure long-term system integrity.
Technical Specifications
| Feature | Details |
| Model Number | TU811 |
| Spare Model / Product ID | 3BSE008526R1 |
| Manufacturer | ABB Group |
| Module Type | Compact Termination Unit (TU) |
| I/O System | S800 I/O |
| Field Connections | Industrial Screw Terminals |
| Mounting | 35mm DIN Rail or Panel Mount |
| Operating Temperature | –25 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Dimensions (HxWxD) | 185 × 59 × 127.5 mm |
| Net Weight | 0.2 kg |
| Compliance | EMC Compliant |
| Country of Origin | Sweden |
Engineering Advantages
The TU811 3BSE008526R1 optimizes control cabinet layouts by addressing high-density wiring and environmental challenges:
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Compact Spatial Footprint: The slim 59 mm width allows for a high concentration of I/O points on a single DIN rail. This space-saving design drastically reduces the size of distributed control enclosures in offshore or skid-mounted applications.
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Vibration-Resistant Terminals: Heavy-duty screw terminals ensure gas-tight connections. This hardware choice prevents signal loss and mechanical failure in environments subject to continuous industrial vibration or thermal expansion.
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Integrated Power Distribution: The baseplate internalizes the routing of power and signals to the I/O module. This reduces the need for external jumper wires, simplifying the wiring loom and minimizing potential points of failure.
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Rapid Installation and Swapping: The DIN rail mounting mechanism allows for quick snap-on installation. Because the field wiring attaches directly to the TU811, operators can swap out active I/O electronics without disconnecting any field cables, reducing Mean Time To Repair (MTTR).
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Enhanced EMC Shielding: The unit utilizes the DIN rail for mandatory grounding. This architecture shunts electromagnetic noise away from the I/O signal path, maintaining data accuracy in electrically noisy plant environments.
FAQs
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Does the TU811 include the active I/O module?
No. The TU811 is a passive termination unit (baseplate) only. It provides the mounting and wiring interface for S800 I/O electronics. You must pair it with the appropriate active module for functional input or output operations.
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Is this unit 100% brand new and original?
Yes. We supply only brand new, factory-original ABB hardware. Every TU811 (3BSE008526R1) originates from ABB Sweden and includes a full 12-month factory warranty.
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What is the difference between the TU811 and TU812?
Both are compact termination units. However, the TU811 is specifically optimized for standard S800 I/O signal routing. We recommend verifying your specific I/O module's compatibility with the TU811 terminal assignment before installation.
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How does the unit handle grounding?
The TU811 establishes a ground connection via its mechanical contact with the DIN rail. For full EMC compliance, you must ensure the DIN rail itself is properly connected to the facility's protective earth (PE).