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Product Overview
The ABB Bailey ITCTU04 Termination Unit is an integral part of the INFI 90 Distributed Control System (DCS) used in industrial process automation. Designed for field signal wiring, the ITCTU04 provides a clean and organized interface between I/O modules and field devices. It ensures safe and reliable signal terminations for analog and digital inputs and outputs and plays a key role in maintaining system integrity and operational reliability.
As a passive device, the ITCTU04 does not manipulate signals but facilitates secure transmission and organized cable management. It is designed for panel mounting within control cabinets and connects with controller hardware via ribbon or field cables.
Technical Specifications
Parameter | Specification |
---|---|
Model Number | ITCTU04 |
Product Type | Termination Unit |
System Compatibility | ABB Bailey INFI 90 / Symphony DCS |
Supported Modules | I/O interface modules such as IMASO, IMASI, IMDSO, IMDSM |
Connection Type | Screw terminals and ribbon cable connectors |
Channel Capacity | 16 or 32 channels (depending on configuration) |
Wiring Interface | Field-side screw terminals, system-side ribbon or IDC connector |
Power Requirement | Passive (no external power supply needed) |
Mounting Type | DIN rail or panel mount |
Housing Material | Flame-retardant thermoplastic |
Operating Temperature | 0°C to +60°C |
Storage Temperature | -40°C to +85°C |
Humidity | 5% to 95% RH non-condensing |
Dimensions (L×W×H) | 170 x 120 x 70 mm |
Weight | 0.862 kg |
Certifications | CE, UL recognized, RoHS compliant |
Product Applications
The ABB ITCTU04 is commonly used in the following industrial sectors and automation processes:
-
Power Generation Plants
Acts as the termination point for turbine, generator, and boiler control instrumentation. -
Chemical & Petrochemical Plants
Interfaces analog and discrete signals from field devices like transmitters, solenoids, and contact switches. -
Oil & Gas Industry
Used in remote terminal units (RTUs) and compressor stations for safe wiring and isolation. -
Water and Wastewater Management
Helps in SCADA-integrated pump control and flow measurement systems. -
Steel and Mining Plants
Facilitates signal routing for motor control, furnace feedback, and alarm triggers. -
Pulp & Paper Mills
Interconnects field sensors and actuators in distributed process areas.
Product Advantages
-
Robust Terminal Design
Provides secure screw terminals for long-term field cable connections. -
Organized Wiring Interface
Clearly marked terminals help reduce wiring errors and facilitate maintenance. -
Panel Integration Ready
Compact size and flexible mounting options make it ideal for various control panel designs. -
No Power Supply Required
As a passive device, it does not add power load to the system. -
Field-Tested Reliability
Trusted in demanding industrial environments with long-term operational stability. -
System Interoperability
Fully compatible with ABB Bailey’s legacy and current controller hardware.
Frequently Asked Questions (FAQ)
-
What is the primary function of the ITCTU04 Termination Unit?
It serves as the field signal termination point in ABB Bailey’s INFI 90 control systems. -
Is this a powered module?
No, it is a passive device and requires no external power. -
What types of modules does ITCTU04 connect to?
It typically connects to I/O modules like IMASI, IMDSI, IMASO, and IMDSO. -
Can this termination unit be used in new ABB systems?
While primarily used in legacy Bailey INFI 90 systems, it is often integrated into hybrid environments. -
How many field signals can it handle?
Depending on the configuration, it supports 16 or 32 channels. -
Does it support both analog and digital signals?
Yes, it can terminate both analog and discrete signal wiring. -
Is it suitable for outdoor use?
No, it should be mounted inside a protected control panel in a dry environment. -
Are the connectors replaceable?
The screw terminals are permanent, but the ribbon connectors can be maintained or replaced as needed. -
Does it require configuration or software setup?
No software or configuration is required; it’s a hardware-only passive component. -
What certifications does it hold?
It is CE, UL recognized, and compliant with RoHS standards for environmental safety.
Related or Similar Models (Same Series / Function)
Model Number | Description | Key Features |
---|---|---|
ITCTU01 | Termination Unit | Legacy support, 16-channel layout |
ITCTU02 | Termination Unit | Extended connection spacing |
ITCTU03 | Termination Unit | 32-channel, high-density wiring |
IMASI23 | Analog Input Module | Works with ITCTU04 |
IMDSO14 | Digital Output Module | Directly interfaces via termination unit |
IMTAI13 | Analog Termination Adapter | Prepares signals for termination modules |
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