1746-NR4
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The Allen-Bradley 1746-NR4 is a Resistance Temperature Detector (RTD) / resistance analog input module for the SLC 500 PLC family. It provides four isolated analog input channels that accept a variety of RTD sensor types (such as platinum, nickel, and copper) and resistance-based signals, converting them into digital values for process monitoring and temperature control in industrial automation systems.
Technical Details
| Specification | Details |
|---|---|
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Line | SLC 500 I/O Modules |
| Model / Part No. | 1746-NR4 |
| Module Type | RTD / Resistance Analog Input Module |
| Number of Channels | 4 analog inputs |
| Input Types Supported | RTD sensors (Platinum, Nickel, Copper, Nickel-Iron) and resistance devices |
| RTD / Resistance Ranges | 0 – 150 Ω, 0 – 300 Ω, 0 – 500 Ω, 0 – 1000 Ω |
| Bandwidth | ~2.62 – 65.5 Hz |
| Update Time | ~17 ms – 1.2 s |
| Resolution | 16-bit analog input |
| Backplane Current | ~50 mA |
| Power Consumption | ~1.5 W max |
| Isolation | ~500 V DC isolation (inputs to backplane/chassis) |
| Operating Temp Range | 0 °C – 60 °C |
| Storage Temp | -40 °C – 85 °C |
| I/O Chassis Slot | Any standard SLC 500 chassis slot (not Slot 0) |
| Typical Applications | Temperature measurement, resistance sensing, process monitoring in industrial automation |
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1 Year Warranty ( Manufacturer warranty DO NOT apply )