{"product_id":"allen-bradley-1746-int4-slc-500-thermocouple-module","title":"Allen-Bradley 1746-INT4 SLC 500 Thermocouple Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cspan style=\"color:#00529b;font-weight:700;\"\u003eAllen-Bradley 1746-INT4\u003c\/span\u003e is a 4-channel isolated thermocouple\/mV analog input module for the SLC 500 platform. Each channel supports types C, D, J, K, T, E, R, S, B, and N thermocouples plus -100 to 100 mV DC signals, storing digitally converted data for SLC 500 processors. The module weighs approximately 0.35 kg (0.77 lb).\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;\"\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e1746-INT4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eSeries\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eModule Type\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eIsolated Thermocouple\/mV Analog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e4 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eThermocouple Types\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eC, D, J, K, T, E, R, S, B, N\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003emV Signal Inputs\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e-50…50 mV DC; -100…100 mV DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eBandwidth\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eConversion Method\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eSigma-Delta ADC modulation\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eCold Junction Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e±1.5°C, 0…70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eIsolation\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e1000V transient \/ 150V AC channel-to-channel and channel-to-backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e\u0026gt; 10 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eOpen-Circuit Detection\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eUpscale, downscale, or zero; 20 nA, 5 s typical\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eUpdate Time\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e500 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eBackplane Current (5V)\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e110 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eBackplane Current (24V)\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e85 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e0.35 kg (0.77 lb) approx.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e0°C to +60°C (32°F to +140°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eHumidity\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f0f4f8;\"\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eCertifications\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ccc;\"\u003eCE, CSA, UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cp\u003eFour individually isolated channels prevent ground loops between thermocouples and the backplane. Sigma-Delta conversion with 16-bit resolution captures fine temperature changes across an 8 Hz bandwidth. Common mode rejection exceeds 120 dB between inputs and chassis ground. Open-circuit detection flags faulted inputs on HMI\/SCADA screens for fast troubleshooting. At roughly 0.35 kg, the module adds minimal weight to the chassis. The module requires field calibration at least once per year.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What thermocouple types does the 1746-INT4 support?\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eA1:\u003c\/strong\u003e Types C, D, J, K, T, E, R, S, B, and N, plus -100…100 mV DC signals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: What is the resolution and isolation rating?\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eA2:\u003c\/strong\u003e 16-bit resolution with 1000V transient \/ 150V AC channel isolation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: How is cold junction compensation accuracy rated?\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eA3:\u003c\/strong\u003e ±1.5°C across 0…70°C using the dedicated CJC terminal.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67637040447620,"sku":"1746-INT4","price":157.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1746-INT4.jpg?v=1791556003","url":"https:\/\/www.etowonauto.com\/nb\/products\/allen-bradley-1746-int4-slc-500-thermocouple-module","provider":"Etowon Auto","version":"1.0","type":"link"}