ABB Bailey NTAI05 Analog Input Termination Unit

Description

The ABB NTAI05 is a specialized analog input termination assembly developed for the Bailey INFI 90 and Symphony Plus distributed control systems. This unit acts as the physical connection bridge for up to 16 analog field signals, including standard 4-20 mA current loops and various voltage inputs. It is designed to streamline the transition between field wiring and the system’s internal I/O slave modules. Built with industrial-grade reliability, the NTAI05 ensures signal integrity through organized routing and secure screw-terminal connections, making it essential for precision monitoring in power generation and heavy process industries.

Specifications

• Brand: ABB Bailey

• Model Number: NTAI05

• Product Series: INFI 90 / Symphony Plus

• Channel Capacity: 16 Analog Inputs

• Compatible Signals: 4-20 mA, 1-5 VDC, 0-10 VDC

• Mounting: Standard N-type Termination Unit Mounting Base

• Interface Ports: Multi-pin headers for connection to IMASI or IMFEC modules

• Connection Type: Rugged screw-terminal blocks

• Operating Temperature: 0 to 70 degrees Celsius

• Relative Humidity: 5% to 95% (non-condensing)

Features

• High-Density Signal Management: Consolidates 16 independent analog channels into a single modular footprint to maximize cabinet space.

• Passive Circuit Reliability: Utilizes high-quality passive components for long-term maintenance-free operation without external power requirements.

• Simplified Maintenance: Field wiring remains intact during I/O module replacement, reducing the risk of wiring errors and minimizing downtime.

• Redundant Logic Support: Compatible with redundant I/O configurations to ensure continuous data availability for mission-critical loops.

• Advanced Noise Suppression: Integrated electrical architecture helps mitigate electromagnetic interference to preserve analog signal precision.

• System Integration: Engineered for seamless physical and electrical synchronization with Harmony Area Controllers and associated Slave Expander Bus hardware.