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Product Introduction
The ABB TU811V1 (3BSE013231R1) is a compact and reliable termination unit (TU) specifically designed for use with the S800 I/O system. Serving as an interface between field wiring and the signal conditioning electronics of I/O modules, the TU811V1 plays a crucial role in distributed control systems (DCS) such as ABB’s 800xA. This TU model supports a single I/O module and allows DIN rail mounting, providing fast installation and easy maintenance.
The TU811V1 is widely used in industrial process automation environments where modularity, scalability, and high reliability are essential. It supports screw terminals and offers clear channel labeling, making it ideal for various analog and digital signal interfacing applications.
Product Advantages
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Compact Design: Enables efficient use of space in control cabinets.
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Ease of Installation: Designed for DIN rail mounting and includes labeled screw terminals for quick and secure wiring.
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High Compatibility: Fully compatible with S800 I/O modules, supporting a wide range of analog and digital inputs/outputs.
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Robust Construction: Built with industrial-grade materials for long-term durability in harsh environments.
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Field-Proven Reliability: Trusted in thousands of installations worldwide, ensuring continuous uptime in mission-critical operations.
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Clear Channel Labeling: Simplifies field diagnostics and reduces commissioning time.
Technical Specifications
| Parameter | Description |
|---|---|
| Part Number | 3BSE013231R1 |
| Product Type | Termination Unit (TU) |
| I/O Module Support | Single S800 I/O module |
| Mounting | DIN rail |
| Terminal Type | Screw terminals |
| Number of Terminals | 36 terminals |
| Rated Voltage | 50 V DC (maximum) |
| Dielectric Strength | 500 V AC (1 minute) |
| Operating Temperature | –20°C to +55°C |
| Storage Temperature | –40°C to +70°C |
| Humidity | 5% to 95% non-condensing |
| Protection Class | IP20 |
| Material | Polycarbonate housing |
| Dimensions | 64 ×64× 170 mm |
| Weight | 0.17 kg |
| Certification | CE, RoHS, UL (depending on region) |
| Wire Size Supported | 0.2–2.5 mm² |
Product Applications
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Distributed Control Systems (DCS): Core component in ABB 800xA and Freelance control systems.
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Oil & Gas: Interfaces process signals in upstream and downstream automation systems.
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Chemical & Petrochemical: Handles analog/digital I/O wiring in hazardous and general-purpose areas.
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Power Generation: Used in turbine control, BOP systems, and auxiliary plant operations.
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Water Treatment Plants: Manages sensor and actuator signals in SCADA systems.
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Manufacturing Automation: Integrates with sensors, actuators, and PLCs for factory control.
Compatible Models
The ABB TU811V1 is compatible with the following S800 I/O modules:
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AI801 (Analog Input)
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AO801 (Analog Output)
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DI801 (Digital Input)
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DO801 (Digital Output)
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DI802 / DO802 (Isolated I/O modules)
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Redundant applications with CI801 / CI840 controllers
It also interfaces with system backplanes and modules such as:
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TB810 (ModuleBus terminator)
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TB820V2 (Redundant ModuleBus extender)
Installation Instructions
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Mounting: Attach the TU811V1 onto a 35 mm DIN rail inside the control panel.
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Wiring: Connect field wiring to the terminal points according to the I/O module channel map.
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Module Insertion: Install the appropriate S800 I/O module directly onto the TU811V1.
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Bus Connection: Connect the TU811V1 to the ModuleBus using the TB820/TB810 interface modules.
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Labeling: Use provided channel labels to identify terminal connections.
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Power Check: Ensure the system is de-energized during installation to prevent electrical shock or module damage.
6 Same-Series or Related Models
| Model | Description | Supported I/O Modules | Terminal Type | Dimensions (mm) |
|---|---|---|---|---|
| TU810V1 | TU for one I/O module, screw terminals | S800 modules | Screw | 59.5 x 118 x 98 |
| TU812V1 | TU with redundant support | Redundant I/O setups | Screw | 59.5 x 118 x 98 |
| TU813 | TU for redundant CI modules | CI840/CI801 | Screw | 59.5 x 118 x 98 |
| TU814V1 | TU with extended terminal spacing | Analog/Digital | Screw | 85 x 120 x 98 |
| TU830V1 | TU for multiple I/O modules | Mixed I/O | Screw | 146 x 118 x 98 |
| TU850V1 | TU for AI/AO modules | AI/AO | Spring clamp | 59.5 x 118 x 98 |
6 Popular ABB Models
| Model | Description | Voltage Rating | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| CI854AK01 | PROFIBUS DP interface module | 24 V DC | 145 x 145 x 40 | 0.35 |
| PM864AK01 | AC 800M controller with Ethernet | 24 V DC | 186 x 110 x 185 | 0.75 |
| AI801 | Analog input module (8 ch, 0-20 mA) | 24 V DC | 45 x 119 x 99 | 0.25 |
| AO801 | Analog output module (8 ch, 0-20 mA) | 24 V DC | 45 x 119 x 99 | 0.25 |
| DI801 | Digital input module (16 ch, 24 VDC) | 24 V DC | 45 x 119 x 99 | 0.22 |
| DO801 | Digital output module (16 ch, 24 VDC) | 24 V DC | 45 x 119 x 99 | 0.22 |
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the ABB TU811V1?
A1: It serves as a termination unit for connecting field signals to S800 I/O modules in ABB DCS systems.
Q2: Can TU811V1 be used with redundant I/O modules?
A2: No, TU811V1 is designed for single-module use. For redundancy, models like TU812V1 or TU813 should be used.
Q3: Is the TU811V1 hot-swappable?
A3: The termination unit itself is not hot-swappable; however, I/O modules mounted on it can be hot-swapped if the system supports it.
Q4: What kind of field wires does the TU811V1 support?
A4: It supports copper conductors ranging from 0.2 to 2.5 mm² using screw terminals.
Q5: Does it require any configuration software?
A5: No configuration is needed for the TU itself. Module configuration is done in ABB Control Builder software.
Q6: What is the protection class of TU811V1?
A6: It has a protection rating of IP20, suitable for indoor industrial panel installations.
Q7: Can the TU811V1 be reused if an I/O module is replaced?
A7: Yes, the TU811V1 is durable and reusable when replacing I/O modules, provided it’s undamaged.
Q8: How many channels does TU811V1 support?
A8: It has 36 terminals, typically supporting 8 to 16 channels depending on the module type.
Q9: Are spring terminal versions available?
A9: TU811V1 uses screw terminals. For spring terminals, other TU models such as TU850V1 are available.
Q10: What certifications does the TU811V1 carry?
A10: It typically includes CE and RoHS compliance. UL certification may vary by region.
