{"product_id":"1746-nr4-allen-bradley-slc-500-4-channel-rtd-resistance-analog-input-module","title":"1746-NR4 | Allen Bradley SLC 500 4-Channel RTD\/Resistance Analog Input Module","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eAllen Bradley 1746-NR4\u003c\/strong\u003e is an analog input module for the SLC 500 series, designed to interface directly with RTD sensors and resistance inputs. With four input channels, sigma-delta conversion, and high accuracy, it provides precise temperature and resistance measurement for industrial automation systems. The module supports a wide range of RTD types, multiple resistance ranges, and offers robust isolation for reliable operation in demanding environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e Allen Bradley\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e SLC 500 Series\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e RTD\/Resistance Analog Input Module\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e \u003cstrong\u003e1746-NR4\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e 0.56 lbs (0.26 kg)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e 4 channels\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCompatible RTD Sensors\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePlatinum (385): 100, 200, 500, 1000 Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePlatinum (3816): 100, 200, 500, 1000 Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCopper (426): 10 Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNickel (618): 120 Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNickel (672): 120 Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNickel Iron (518): 604 Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eResistance Input Ranges\u003c\/strong\u003e 0–150 Ω, 0–300 Ω, 0–500 Ω, 0–1000 Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBandwidth\u003c\/strong\u003e 2.62–65.5 Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eUpdate Time\u003c\/strong\u003e 17 ms–1.2 s\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e 0.01 °C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eStep Response\u003c\/strong\u003e 60 ms input, 2.5 ms output\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInput Accuracy\u003c\/strong\u003e ±0.642% (current), ±0.504% (voltage equivalent)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e 500 V for 1 minute\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current Load\u003c\/strong\u003e 50 mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e 1.5 W max (0.3 W @ 5 V DC, 1.2 W @ 24 V DC)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMounting Location\u003c\/strong\u003e Any chassis slot except Slot 0\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e 0–60 °C (32–140 °F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e –40–85 °C (–40–185 °F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eConversion Method\u003c\/strong\u003e Sigma-delta modulation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplication Scenarios\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision temperature monitoring using RTD sensors\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eResistance-based measurement in process control systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial automation requiring accurate analog input for thermal management\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: How many input channels does the 1746-NR4 provide?\u003c\/strong\u003e  A: Four RTD\/resistance input channels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Which RTD types are supported?\u003c\/strong\u003e  A: Platinum, copper, nickel, and nickel-iron sensors across multiple resistance values.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Can the module be installed in any slot?\u003c\/strong\u003e  A: Yes, except Slot 0 in the SLC 500 chassis.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eComparable Models\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e1746-NR4\u003c\/strong\u003e: 4-channel RTD\/resistance input (this model)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e1746-NI4\u003c\/strong\u003e: 4-channel analog input module\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e1746-NT4\u003c\/strong\u003e: 4-channel thermocouple input module\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":52702579589304,"sku":"1746-NR4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1746-NR4.jpg?v=1770630554","url":"https:\/\/www.globalpetroparts.com\/products\/1746-nr4-allen-bradley-slc-500-4-channel-rtd-resistance-analog-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}