1746-NR8 SLC 500 RTD Module Allen-Bradley 8-Channel

Product Overview

The 1746-NR8 is a high-performance RTD module from Allen-Bradley. It fits into the SLC 500 platform. This module reads resistance temperature detectors. It provides accurate temperature data for industrial control. Use it for process monitoring and automation tasks. The module has 8 input channels. It supports 2, 3, and 4-wire RTD configurations. This design ensures flexible installation. The backplane power consumption is a maximum of 1.82 W. It draws 100 mA at 5 Volts DC. It draws 55 mA at 24 Volts DC. This efficiency reduces system heat. The module offers reliable performance in harsh environments.

Application Scenarios

This module works best in manufacturing plants. It monitors temperatures in ovens and reactors. It also works in HVAC systems. Use it for plastic molding machines. It tracks heat in chemical processes. Food processing lines use it for safety. The module handles cold junction compensation. This feature improves measurement accuracy. It fits into existing SLC 500 racks. Engineers use it for retrofits and upgrades. The compact design saves space in control panels.

Technical Specifications

The 1746-NR8 operates at 5 Volts DC and 24 Volts DC. Power consumption is 0.5 W at 5 Volts DC. Power consumption is 1.32 W at 24 Volts DC. The maximum common mode voltage is +/- 1 Volt. It withstands permanent overloads of +/- 5 mA. It also withstands +/- 5 Volts DC. Isolation voltage is continuous at 5 Volts DC between channels. Inputs isolate from the backplane at 500 Volts AC for 1 minute. Inputs also isolate from chassis ground at 500 Volts AC. The operating temperature range is 32 to 140 degrees Fahrenheit. Storage temperature range is -40 to 185 degrees Fahrenheit. Non-condensing relative humidity is 5 to 95%.

Installation & Maintenance Guide

Install the module into any SLC 500 chassis slot. Ensure power is off before insertion. Align the module with the backplane connector. Secure it with the locking screws. Wire RTD sensors to the terminal block. Use shielded cables for best results. Check all connections for tightness. Do not exceed voltage or current limits. Keep the module free from dust. Perform periodic visual inspections. Replace the module if damage occurs. Follow all local electrical codes.

Packing List

Each order includes one 1746-NR8 module. It comes with a user manual. The package includes a terminal block. No additional cables are included. We ship using Fedex, UPS, or DHL. All items are packed securely. This prevents damage during transit.