Safety Module Terminal Unit | ABB TU890 S800 I/O
Manufacturer: ABB
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Part Number: TU890
Condition：New with Original Package
Product Type: Module Termination Units
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB TU890 (3BSC690075R1) S800 I/O Module Termination Unit
The TU890 (Part Number 3BSC690075R1) is a Module Termination Unit (MTU) engineered by ABB for the S800 I/O and System 800xA distributed control platforms. Equipped with an intrinsic safety interface, this passive base unit facilitates safe field wiring connections for hazardous area I/O modules such as the DO890.
Terminal Distribution and Wiring Layout
The unit provides 3 sets of 9 signal terminals, offering a total of 27 connection points for field wiring and signal distribution. It incorporates an integrated wiring separator to maintain physical segregation between circuits, facilitating organized installation and routine maintenance within control cabinets.
Power Distribution and System Integration
The MTU distributes ModuleBus signals and operating power from the backplane to connected I/O modules. Designed for standard DIN rail mounting, the module supports a maximum rated voltage of 50 V and a current capacity of up to 2 A per channel, tailored for process automation installations requiring intrinsically safe loops.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | TU890 |
| Part Number | 3BSC690075R1 |
| Manufacturer | ABB |
| Product Series | S800 I/O / System 800xA |
| Product Type | Module Termination Unit with Intrinsic Safety Interface |
| Signal Terminals | 3 sets of 9 terminals (27 connection points) |
| Wiring Features | Integrated wiring separator |
| Maximum Rated Voltage | 50 V |
| Maximum Rated Current | 2 A per channel |
| Mounting Type | DIN rail mounting |
| Dimensions (L x W x H) | 160 mm x 160 mm x 120 mm |
| Weight | 0.8 kg |
| Country of Origin | Germany / Spain / USA |
Frequently Asked Questions
Q: Is the TU890 unit designed for hazardous area installations? A: Yes, it features an intrinsic safety interface that supports direct connection to Ex-certified I/O modules like the DO890.
Q: How many signal terminals are provided on this termination unit? A: The module offers 3 sets of 9 terminals, providing a total of 27 connection points for field signal wiring.