{"product_id":"allen-bradley-1746-nr8-resistance-input-module","title":"Allen-Bradley 1746-NR8 SLC 500 8-Point RTD\/Resistance Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-NR8 is an 8-point RTD\/Resistance input module designed for use within the SLC 500 programmable controller system. This module provides high-precision temperature and resistance monitoring, allowing for the direct connection of RTD sensors or resistance-based devices to the PLC backplane. It is engineered to deliver reliable signal conditioning and conversion for industrial process control applications.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8-point input density for multi-channel temperature monitoring.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard SLC 500 I\/O chassis configurations.\u003c\/li\u003e\n\u003cli\u003eSupports a variety of RTD types and resistance ranges.\u003c\/li\u003e\n\u003cli\u003eLow power consumption profile for efficient rack operation.\u003c\/li\u003e\n\u003cli\u003eIntegrated signal filtering for improved noise immunity in industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is typically utilized in process automation environments requiring precise temperature measurement, such as HVAC systems, chemical processing, food and beverage manufacturing, and thermal management systems within industrial machinery.\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-NR8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRTD\/Resistance Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Points\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e100 mA @ 5V DC; 55 mA @ 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.82W maximum (0.5W @ 5V DC, 1.32W @ 24V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003e60 ms (in), 2.5 ms (out)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Placement\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 SLC 500 chassis power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eThe module can be installed in any available slot of the I\/O chassis, with the exception of Slot 0.\u003c\/li\u003e\n\u003cli\u003eUse appropriate shielded cabling for RTD inputs to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the chassis to maintain signal integrity and safety.\u003c\/li\u003e\n\u003cli\u003eHandle the module using ESD-safe practices to prevent damage to internal circuitry.\u003c\/li\u003e\n\u003cli\u003eVerify that the backplane power supply capacity is sufficient for the total load of all installed modules.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat types of sensors can be connected to the 1746-NR8?\u003c\/h3\u003e\u003cp\u003eThe 1746-NR8 is designed to interface with RTD (Resistance Temperature Detector) sensors and resistive inputs. Refer to the specific Allen-Bradley user manual for the 1746-NR8 for the list of supported RTD types (e.g., Pt100, Ni100) and resistance ranges.\u003c\/p\u003e\u003ch3\u003eCan this module be placed in any slot?\u003c\/h3\u003e\u003cp\u003eNo, the 1746-NR8 can be placed in any slot of the SLC 500 I\/O chassis except for Slot 0, which is reserved for the processor.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50734623293692,"sku":"1746-NR8","price":86.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_aef9ce4e-2acb-438a-9e7d-cf65c097138e.jpg?v=1785319461","url":"https:\/\/www.electronicplc.com\/es\/products\/allen-bradley-1746-nr8-resistance-input-module","provider":"Electronic PLC","version":"1.0","type":"link"}