Technical Specifications Overview
The table below details the core technical parameters of this termination unit.
| Parameter | Specification |
|---|---|
| Model Number | NTAI05 |
| Product Type | Termination Unit |
| Compatible System | ABB Procontrol P14 / AC 800M Series |
| Compatible I/O Modules | Analog input modules (e.g., NTAI06, NTAI07) |
| Number of Channels | 16 channels |
| Terminal Type | 34-point removable screw terminal block |
| Signal Types Supported | 4-20 mA, 0-20 mA, ±10 V, RTD, thermocouple |
| Cable Connection | 34-pin flat ribbon cable (to I/O module) |
| Dimensions (W x H x D) | 67 mm x 130 mm x 120 mm |
| Weight | 0.35 kg |
| Wire Gauge Capacity | Up to 2.5 mm² (AWG 14) |
| Mounting Type | DIN rail or direct backplane mounting |
| Indicators | None (passive unit) |
| Operating Temperature | 0°C to 60°C |
Versatile Signal Interface and Connectivity
The NTAI05 termination unit provides a centralized wiring interface for analog I/O modules in the Procontrol P14 and AC 800M systems. This termination unit supports multiple analog signal types, including 4-20 mA current loops, 0-20 mA signals, ±10 V voltage inputs, RTD temperature sensors, and thermocouples. A 34-pin flat ribbon cable connects the termination unit directly to the corresponding analog input module, simplifying the overall system architecture.
The unit features 16 dedicated channels, each with clearly labeled terminals for signal, return, and shield connections. This design ensures correct wiring during installation and significantly reduces the risk of connection errors. The removable screw terminal block allows engineers to pre-wire the field cables before mounting the unit, which greatly accelerates system commissioning.
Physical Design and Installation Flexibility
This termination unit measures 67 mm in width, 130 mm in height, and 120 mm in depth, with a weight of 0.35 kg. The compact form factor accommodates high-density installations within standard control cabinets. Users can mount the NTAI05 either on a DIN rail or directly onto the backplane, offering excellent flexibility for different panel layouts.
The screw terminals accept wires up to 2.5 mm² (AWG 14), ensuring reliable connections for both low-level analog signals and power wiring. The unit includes strain relief features that prevent accidental cable disconnection due to vibration or mechanical stress.
Practical Application and System Integration
This termination unit serves as a passive interface device, requiring no external power supply for its operation. The NTAI05 eliminates the need for custom cable assemblies or intermediate junction boxes, reducing installation cost and complexity. It provides a standard, repeatable wiring solution across multiple projects, which improves consistency and reduces maintenance overhead.
The clear labeling on the front panel indicates each channel’s signal type and connection points. Therefore, maintenance personnel can quickly trace and troubleshoot field wiring without consulting system drawings. The unit operates reliably across a temperature range of 0°C to 60°C, withstanding humidity from 5% to 95% (non-condensing).
Details
| Weight | 0.35 kg |
|---|---|
| Dimensions | 67 × 130 × 120 mm |
