{"product_id":"allen-bradley-1746-nr4-analog-input-module","title":"Allen-Bradley 1746-NR4 SLC 500 4-Point Resistance Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-NR4 is a 4-point resistance input module designed for the SLC 500 programmable logic controller system. This analog input module is specifically engineered to interface with RTD (Resistance Temperature Detector) sensors and resistive devices, providing high-precision temperature or resistance monitoring in industrial automation environments. It allows for the integration of various resistance-based sensors directly into the SLC 500 rack, facilitating reliable data acquisition for process control applications.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e4-channel analog input for RTD and resistance monitoring.\u003c\/li\u003e\n\u003cli\u003eCompatible with the Allen-Bradley SLC 500 chassis-based system.\u003c\/li\u003e\n\u003cli\u003eConfigurable bandwidth settings ranging from 2.62 Hz to 65.5 Hz to suit specific noise filtering requirements.\u003c\/li\u003e\n\u003cli\u003eDesigned for installation in any I\/O slot of the SLC 500 chassis (excluding slot 0).\u003c\/li\u003e\n\u003cli\u003eLow power consumption profile for efficient rack operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is widely utilized in industrial process control systems requiring temperature monitoring, such as HVAC systems, chemical processing, food and beverage manufacturing, and machinery thermal management. It is suitable for applications where precise resistance-to-digital conversion is required for PLC logic processing.\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-NR4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003e4-Point Resistance\/RTD Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e50 mA @ 5V DC; 50 mA @ 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.5 W max (0.3 W @ 5V, 1.2 W @ 24V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBandwidth\u003c\/td\u003e\n\u003ctd\u003e2.62 - 65.5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Location\u003c\/td\u003e\n\u003ctd\u003eAny slot except Slot 0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the PLC chassis power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eThe module can be installed in any available slot in the SLC 500 chassis except for the processor slot (Slot 0).\u003c\/li\u003e\n\u003cli\u003eUse shielded twisted-pair cabling for sensor inputs to minimize electromagnetic interference (EMI) in industrial environments.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the chassis and cable shields to maintain signal integrity.\u003c\/li\u003e\n\u003cli\u003eHandle the module using ESD-safe practices to prevent damage to internal sensitive components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eIs the 1746-NR4 still in production?\u003c\/h3\u003e\u003cp\u003eNo, the Allen-Bradley 1746-NR4 was discontinued by the manufacturer on December 30, 2015. We provide refurbished or surplus units to support legacy systems.\u003c\/p\u003e\u003ch3\u003eCan this module be installed in Slot 0?\u003c\/h3\u003e\u003cp\u003eNo, the 1746-NR4 must be installed in any I\/O slot other than Slot 0, which is reserved for the SLC 500 processor.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50647317250300,"sku":"1746-NR4","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_e2659f35-b0da-43aa-b248-bfcf3970e8e8.jpg?v=1785057998","url":"https:\/\/www.electronicplc.com\/es\/products\/allen-bradley-1746-nr4-analog-input-module","provider":"Electronic PLC","version":"1.0","type":"link"}