{"product_id":"allen-bradley-1746-nr4-slc-500-rtd-input-module","title":"Allen-Bradley 1746-NR4 SLC 500 RTD Input Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1746-NR4 is a four-channel RTD\/Resistance Input Module for the SLC 500 family, designed to connect four RTD sensors (such as Pt100) or resistance inputs directly to the backplane. Each channel uses sigma-delta A\/D conversion with programmable low-pass filtering and notch options, and the module supports 2-wire and 3-wire RTD configurations for precise temperature measurements. The module draws power from the backplane (50 mA at 5 V and 50 mA at 24 V; up to 1.5 W total) with no external supply, and all four inputs are backplane isolated; it delivers high input performance with common-mode rejection \u0026gt;150 dB and normal-mode rejection \u0026gt;100 dB, a max common-mode voltage of ±1 V, and overload tolerance of ±5 V \/ ±5 mA. Auto-calibration occurs whenever a channel is enabled or its input type or filter settings change, and the NR4 is designed for installation in any I\/O slot except slot 0 in the chassis.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658971414830,"sku":null,"price":268.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_d8219f75-3fd0-4427-9dc9-7d56d04222c8.jpg?v=1769526166","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1746-nr4-slc-500-rtd-input-module","provider":"PLG Automation ","version":"1.0","type":"link"}