Overview
The ABB TU891 MTU (Module Termination Unit) is part of the S800 I/O family, designed for use in ABB’s System 800xA distributed control system (DCS). It serves as the termination interface between field signals and I/O modules, ensuring signal integrity and simplifying maintenance.
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Non-IS Design: Suitable for standard industrial environments (not intrinsically safe).
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3 × 9 Signal Terminals: Compact, efficient wiring for field devices.
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Plug-in Installation: Simplifies integration with ABB’s S800 I/O modules.
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Electrical Protection: Ensures stable communication for connected signals.
This termination unit is essential for connecting field devices to ABB’s modular I/O system, and it plays a crucial role in process automation, power generation, and manufacturing industries.
Technical Data
| Parameter | Specification |
|---|---|
| Model | TU891 |
| Product Type | Module Termination Unit (MTU) |
| Dimensions | 64 × 194 × 58 mm |
| Weight | 0.17 kg |
Typical Applications
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Process automation systems requiring reliable signal termination for field devices.
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Power generation plants where stable I/O connections are critical for turbine and boiler control.
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Chemical and petrochemical industries needing robust wiring solutions in non-IS (non-intrinsically safe) environments.
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Manufacturing automation where compact MTUs simplify wiring and reduce downtime.
Example: In a refinery automation system, the TU891 ensures secure termination for multiple sensor signals, providing accurate data transfer to the control system.
FAQ
Q1: What is the primary function of the TU891?
A1: It terminates field signals for ABB S800 I/O modules in non-intrinsically safe applications.
Q2: How many signal terminals does it support?
A2: It provides termination for 3 × 9 signal terminals.
Q3: Is it compatible with intrinsically safe environments?
A3: No, the TU891 is designed for non-IS applications only.
Q4: How is it installed?
A4: It is DIN-rail or rack-mounted as a plug-in module, simplifying installation and replacement.
Q5: Which industries typically use this unit?
A5: Power generation, petrochemical refining, chemical processing, and heavy manufacturing sectors.
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| Warranty | 12 Months |
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