Allen-Bradley 1746-N18 Analog Input Module – Precision Industrial Process Monitoring
The Allen-Bradley 1746-N18 Analog Input Module delivers high-precision signal acquisition for demanding industrial control applications. With 8 isolated channels and ±20 mA input range, this module ensures reliable data collection in harsh environments, supporting seamless integration with Allen-Bradley PLC systems for optimized process automation.
Key Features
- 8-Channel High-Precision Input: Supports ±20 mA analog signal acquisition with ±0.1% accuracy for critical process measurements.
- Industrial-Grade Isolation: 500 VDC backplane isolation and 1500 Vrms channel-to-channel separation ensure system safety.
- Wide Operating Range: Functions reliably in extreme temperatures (-40°C to +70°C) and 5-95% non-condensing humidity.
- Overvoltage Protection: Withstands up to 7.5 VAC RMS input surges to protect against electrical faults.
- Compact Design: Lightweight 0.8 lb (360g) form factor with standard DIN-rail mounting for easy system integration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand/Model | Allen-Bradley 1746-N18 |
| Channels | 8 differential analog inputs |
| Input Range | -20 to +20 mA |
| Power Requirements | 35 mA @ 5V DC, 85 mA @ 24V DC |
| Operating Temperature | -40°C to +70°C |
| Isolation Voltage | 500 VDC backplane, 1500 Vrms channel-to-channel |
Application Fields
Engineered for mission-critical environments, the 1746-N18 excels in manufacturing automation, chemical processing, and energy management systems. Its high-accuracy signal conditioning supports flow/level monitoring in oil & gas pipelines, temperature control in steel mills, and precision feedback in robotics. The module’s rugged design makes it ideal for applications requiring reliable data acquisition under extreme industrial conditions.
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