The ABB Bailey NIAI03 Analog Input Termination Module is a dedicated interface unit used in the ABB Bailey INFI 90 / Net 90 Distributed Control System (DCS). It is designed to provide reliable signal termination and wiring interface for RTD-based analog temperature inputs from field instrumentation.
In industrial automation systems, the NIAI03 acts as the physical connection layer between field sensors and analog input slave modules. It ensures that RTD signals are properly routed, protected, and stabilized before being processed by the control system. This improves measurement accuracy and reduces noise interference in long-distance signal transmission.
It is widely used in power plants, process industries, and petrochemical facilities where temperature monitoring reliability is critical to safe and efficient operation.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Analog Input Termination Module |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Function | RTD signal termination and interface |
| Input Capacity | Up to 8 RTD channels |
| Supported Wiring | 3-wire RTD configuration |
| Connected Modules | IMASM03 / IMASM04 analog slave modules |
| Signal Protection | Transient and surge protection |
| Installation Type | Termination mounting unit (rack-based) |
| Field Wiring | Front terminal block connection |
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | 178 mm × 51 mm × 178 mm |
| Weight | ~0.2 kg |
The compact termination design allows efficient cabinet wiring layout while maintaining strong signal integrity for industrial measurement systems.
Recommended Related Models
- ABB Bailey IMASM03 Analog Input Slave Module
- ABB Bailey IMASM04 Analog Input Slave Module
- ABB Bailey IMAMM03 Analog Master Module
- ABB Bailey NTAI02 Analog Termination Unit
- ABB Bailey IMMFP11 Multi-Function Processor Module
These modules are typically used together to complete a full analog temperature measurement chain in ABB Bailey systems.
Popular ABB Bailey Models
- NIAI02 Analog Input Termination Module
- NIAI03 RTD Analog Input Termination Module
- IMASI23 Analog Input Module
- IMASM03/IMASM04 Slave Modules
- IMMFP12 Process Controller Module
These components are widely deployed in long-life ABB Bailey INFI 90 installations still operating in global industrial facilities.
