{"product_id":"allen-bradley-1746-nt8-thermocouple-module","title":"Allen-Bradley 1746-NT8 SLC 500 8-Point Thermocouple\/mV Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-NT8 is a specialized analog input module designed for the SLC 500 programmable logic controller system. This module provides 8 input channels specifically configured for thermocouple and millivolt (mV) signal processing. It is engineered to interface directly with various temperature sensors, allowing for precise monitoring and control of industrial processes requiring thermal data acquisition.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8 isolated input channels for thermocouple or millivolt signals.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard SLC 500 chassis and backplane configurations.\u003c\/li\u003e\n\u003cli\u003eSupports multiple thermocouple types (J, K, T, E, R, S, B, N) and millivolt ranges.\u003c\/li\u003e\n\u003cli\u003eIntegrated cold junction compensation for accurate temperature measurement.\u003c\/li\u003e\n\u003cli\u003eDigital filtering to minimize noise interference in industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is widely used in industrial automation applications where temperature monitoring is critical, such as furnace control, heat treatment processes, chemical reactors, and environmental monitoring systems within the SLC 500 platform.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e1746-NT8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eThermocouple \/ mV Analog Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (Backplane power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the SLC 500 chassis power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eUse shielded twisted-pair cabling for all thermocouple and millivolt inputs to reduce electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the module chassis to the system ground bus.\u003c\/li\u003e\n\u003cli\u003eAvoid routing signal wires alongside high-voltage AC power lines or motor control cables.\u003c\/li\u003e\n\u003cli\u003eVerify that the thermocouple polarity is correct at the terminal block to prevent measurement errors.\u003c\/li\u003e\n\u003cli\u003eHandle the module using ESD-safe practices to prevent damage to internal circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Is the 1746-NT8 a digital input module?\u003c\/strong\u003e\u003cbr\u003eA: No, despite some legacy references, the 1746-NT8 is an analog input module specifically designed for thermocouple and millivolt signals, not standard 24VDC digital inputs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does this module require external power?\u003c\/strong\u003e\u003cbr\u003eA: The module draws its primary operating power from the SLC 500 backplane. Ensure your power supply is sized correctly to handle the total current draw of all modules in the rack.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50647293526268,"sku":"1746-NT8","price":92.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_c3d3dc8c-8b82-4195-b26b-4e4c87f7dce8.jpg?v=1785055842","url":"https:\/\/www.electronicplc.com\/products\/allen-bradley-1746-nt8-thermocouple-module","provider":"Electronic PLC","version":"1.0","type":"link"}