Overview
It serves as a stable interface between field signals and I/O modules in demanding industrial control environments.
Moreover, TU890 simplifies installation while maintaining consistent signal integrity across long operating cycles.
Specification
| Category | Specification |
|---|---|
| Manufacturer | ABB |
| Model | TU890 |
| Order Number | 3BSC690075R1 |
| Product Type | Module Termination Unit (MTU) |
| System Compatibility | ABB Advant OCS, ABB 800xA |
| Supported I/O Family | S800 I/O |
| Mounting | DIN rail mounting |
| Terminal Type | Screw terminals |
| Number of Terminals | Optimized for S800 I/O module channel layout |
| Supported Wire Size | 0.2–2.5 mm² (solid or stranded) |
| Rated Insulation Voltage | 50 V |
| Dielectric Test Voltage | 500 V AC |
| Power Distribution | Via connected I/O module |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | –25 °C to +70 °C |
| Relative Humidity | 5–95% non-condensing |
| Protection Rating | IP20 |
| Installation Location | Control cabinet |
| Compliance | CE, RoHS |
| Maintenance Feature | I/O replacement without disconnecting field wiring |
FAQ
A1: TU890 provides secure field wiring termination and interfaces directly with S800 I/O modules.
Q2: Which control systems support TU890?
A2: The unit is fully compatible with ABB Advant OCS and ABB 800xA automation systems.
Q3: Can I replace I/O modules without rewiring the TU890?
A3: Yes, the design allows I/O module replacement while keeping all field wiring intact.
Q4: Is TU890 suitable for harsh industrial environments?
A4: Yes, it operates reliably under vibration, temperature changes, and continuous industrial use.
Q5: How does TU890 improve maintenance efficiency?
A5: Clearly labeled terminals and stable mounting significantly reduce troubleshooting and service time.
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Contact: Manski Wong +86 18030205725 manski@cambia.cn
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