The ABB Bailey NTAI02 Analog Input Termination Unit is a field wiring interface module designed for the ABB Bailey INFI 90 / Net 90 Distributed Control System (DCS). It is used to terminate, organize, and condition analog input signals from field instruments before they are transmitted to analog input processing modules.
In industrial automation systems, accurate analog signal transmission is essential for reliable process monitoring and control. The NTAI02 provides secure field wiring connections, signal isolation, and organized signal routing for sensors such as transmitters, temperature devices, pressure instruments, and flow measurement equipment.
It is widely used in power generation, petrochemical, oil & gas, and process manufacturing industries where stable analog signal acquisition is critical.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Analog Input Termination Unit |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Main Function | Analog signal termination & field interface |
| Signal Types | 4–20 mA, voltage, thermocouple, RTD (system dependent) |
| Channel Support | Multiple analog input channels |
| Wiring Interface | Field terminal connections |
| Isolation | Industrial signal isolation |
| Installation Method | Rail-mounted / cabinet-mounted |
| Operating Environment | Industrial automation systems |
| Operating Duty | Continuous 24/7 operation |
The NTAI02 provides organized analog signal termination and reliable field-device interfacing for ABB Bailey analog input systems. (controltech-supply.com)
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | Approx. 178 mm × 51 mm × 203 mm |
| Weight | ~0.5–1.0 kg |
Its compact industrial design allows efficient cabinet installation while maintaining reliable field wiring management and signal integrity.
Recommended Related Models
- ABB Bailey IMASI02 Analog Input Module
- ABB Bailey NTAO02 Analog Output Termination Unit
- ABB Bailey NTDI01 Digital Input Termination Unit
- ABB Bailey NPIM01 Processor Interface Module
- ABB Bailey NPSM02 Power Supply Module
These modules are commonly integrated with NTAI02 to build complete ABB Bailey analog I/O architectures.
Popular ABB Bailey Models
- NTAI02 Analog Input Termination Unit
- IMASI02 Analog Input Module
- NTAO02 Analog Output Termination Unit
- NMFC02 Controller Module
- NMFP01 Processor Module
These ABB Bailey components remain widely used in legacy distributed control systems requiring reliable analog signal handling.
