The ABB Bailey ITCTU04 is an advanced Termination Unit Module used in the INFI 90 distributed control system (DCS). It serves as a critical interface between field wiring and analog input modules, ensuring accurate signal termination, isolation, and stable data transmission across industrial control systems.
In complex process automation environments, reliable termination is essential for maintaining signal integrity and minimizing electrical noise. The ITCTU04 is designed to support high-density analog signal connections, making it widely used in power plants, oil & gas facilities, petrochemical industries, and large-scale manufacturing systems.
It is typically paired with ABB Bailey analog input modules to simplify field wiring and improve system maintainability.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Analog Input Termination Unit |
| System | ABB Bailey INFI 90 / Net 90 DCS |
| Function | Field signal termination and interface |
| Input Channels | 16 single-ended or 8 differential channels |
| Supported Signals | Thermocouples, RTDs, voltage, current |
| Signal Interface | Field wiring terminal blocks |
| Resolution Support | Up to 16-bit system accuracy (module dependent) |
| Isolation | 2500 VRMS channel isolation |
| Compatibility | IMASI / IMRAE / IMASM analog modules |
| Communication | Passive interface (no processing logic) |
| Power Requirement | +5 V DC (via system interface) |
| Module Type | Rack-mounted termination board |
| Operating Temperature | 0°C to 60°C |
| Humidity | 5%–95% non-condensing |
| Protection Class | Industrial control environment rated |
Dimensions & Weight
| Item | Value |
|---|---|
| Size (L × W × H mm) | 178 × 51 × 203 mm |
| Weight | approx. 0.7 kg |
Recommended Related Models
- ABB IMASI03 / IMASI23 – analog input slave modules
- ABB IMRAE11 / IMRAE12 – analog input modules
- ABB IMASM series – signal conditioning modules
- ABB NIAI04 – alternative analog termination module
- ABB IMMFP11 / IMMFP12 – processor modules
Popular ABB Bailey Models
- INFI 90 analog input/termination systems
- Bailey Harmony control platforms
- ABB Symphony distributed control systems
- Net 90 legacy I/O architecture
- Industrial process automation interface modules
