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- ABB Bailey
- ITCTU05 18231161 B
- Terminal Unit
- Sweden (SE)
- 220 x 220 x 140 mm
- 0.4 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The ABB Bailey ITCTU05 Terminal Unit (Part No. 18231161 B) is a field termination and interface module used in ABB INFI 90 / Network 90 distributed control systems (DCS). It provides a structured interface between field wiring and ABB control system I/O modules, ensuring safe, organized, and reliable signal connections in industrial automation cabinets.
Compared with smaller ITCTU variants, the ITCTU05 is generally used in more complex or higher-capacity termination configurations, often in larger control system racks.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB (Bailey) |
| Model | ITCTU05 |
| Part Number | 18231161 B |
| Product Type | Terminal Unit |
| System | INFI 90 / Network 90 DCS |
| Function | Field signal termination & interface |
| Signal Types | Analog and digital field signals |
| Interface Role | Field wiring to I/O modules |
| Installation Type | Cabinet / rack-mounted unit |
| Application | Control system field termination |
| Dimensions | 220 × 220 × 140 mm |
| Weight | 0.4 kg |
Function and Working Principle
The ITCTU05 functions as a termination hub and structured interface point between field instruments and ABB Bailey control modules.
Its key functions include:
- Providing centralized termination for field wiring
- Connecting sensors, transmitters, and actuators to DCS I/O modules
- Organizing high-density field wiring in control cabinets
- Improving signal routing reliability and clarity
- Supporting easier maintenance and troubleshooting
- Reducing wiring errors in complex installations
It does not process signals itself; it acts as a passive interface layer ensuring correct and stable connectivity.
Role in Industrial Control Systems
Within ABB INFI 90 architecture, the ITCTU05 belongs to the field interface and termination layer.
Typical responsibilities include:
- Terminating multiple field signal lines
- Routing signals to control and I/O modules
- Supporting modular and scalable cabinet design
- Improving system maintainability and documentation clarity
- Enhancing wiring safety and organization
Industrial Applications
The ABB ITCTU05 is commonly used in:
- Power generation plants
- Oil and gas facilities
- Petrochemical and refinery industries
- Chemical processing plants
- Water and wastewater treatment systems
- Industrial automation and manufacturing systems
- Legacy ABB Bailey INFI 90 / Network 90 installations
Installation and System Integration
For proper operation:
- Install in ABB-approved termination or interface racks
- Follow system wiring diagrams for correct terminal mapping
- Ensure proper grounding and shielding for signal integrity
- Maintain clear separation between signal and power wiring
- Verify connections during commissioning
- Inspect terminals periodically for tightness and corrosion
Compatible System Components
The ITCTU05 typically works with:
- ABB Bailey I/O modules (IMASI, IMDSI, IMCIS series)
- Controller modules (BRC / MFP series)
- Field instrumentation (sensors, transmitters, actuators)
- Rack systems and termination assemblies
- System power modules (IPSYS, IPFLD series)
Recommended Alternative Models
| Model | Product Type | Key Feature | Application |
|---|---|---|---|
| ITCTU05 | Terminal Unit | High-capacity field termination | ABB INFI 90 systems |
| ITCTU04 | Terminal Unit | Standard high-density termination | Field wiring interface |
| ITCTU03 | Terminal Unit | Basic termination interface | Standard I/O connections |
| Modern ABB Terminal Blocks | Smart termination systems | Diagnostics + modular wiring | Modern DCS platforms |
Key Advantages
- Supports high-density field wiring organization
- Improves reliability of signal connections
- Reduces installation and maintenance complexity
- Enhances system documentation and clarity
- Compatible with ABB Bailey legacy systems
- Industrial-grade design for continuous operation
- Minimizes wiring errors in large-scale systems
- Supports scalable control cabinet architecture
Technical FAQs
What is the main function of ITCTU05?
It provides termination and interface connections between field wiring and ABB Bailey I/O modules.
Does it process signals?
No. It only provides physical connection and termination for signals.
How is it different from ITCTU04?
ITCTU05 is typically used for higher-capacity or more complex termination configurations.
Which systems use ITCTU05?
It is used in ABB Bailey INFI 90 and Network 90 distributed control systems.
Conclusion
The ABB Bailey ITCTU05 Terminal Unit is a robust field interface component designed for structured termination of complex wiring systems. It improves reliability, maintainability, and organization of industrial control cabinets, making it an important part of ABB Bailey DCS installations.