{"product_id":"allen-bradley-1746-no4i-slc-500-analog-output-module","title":"Allen-Bradley 1746-NO4I SLC 500 Analog Output Module","description":"\u003ch2\u003eIntroduction to the Allen-Bradley 1746-NO4I\u003c\/h2\u003e\u003cp\u003eWhen upgrading your SLC 500 control system, selecting a reliable analog output module is critical. The Allen-Bradley 1746-NO4I provides four 0 to +20 mA current output channels, making it ideal for driving modulating instruments. This module works with both fixed and modular SLC 500 hardware.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eThe 1746-NO4I offers 14-bit resolution via R-2R ladder conversion, with an update time of 512 microseconds for all channels. It draws 55 mA at 5 VDC backplane and 195 mA at 24 VDC. The output range is 0 to +20 mA with a full-scale output of 21 mA and overrange capability of 5%. Step response is 2.5 ms at 95%.\u003c\/p\u003e\u003cp\u003eOther key specs:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCurrent output coding: 0 to +32764\u003c\/li\u003e\n\u003cli\u003eBackplane isolation: 500 VDC\u003c\/li\u003e\n\u003cli\u003eOperating temperature: 0 to 60 °C\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -40 to 85 °C\u003c\/li\u003e\n\u003cli\u003eAmbient relative humidity: 5 to 95% non-condensing\u003c\/li\u003e\n\u003cli\u003eLoad range: 0 to 500 ohms\u003c\/li\u003e\n\u003cli\u003eMaximum load reactance: 100 µH\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1746-NO4I is commonly used in process control where PID control outputs require precise current signals. Typical applications include controlling valve positioners, VFD speed references, and retransmitting signals for data logging. Its reliable performance ensures minimal downtime in manufacturing environments.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1746-NO4I is designed for the SLC 500 platform and compatible with 1746 chassis. It works with both fixed and modular controllers. Use shielded twisted-pair cabling like Belden 8761 for optimal noise immunity.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your SLC 500 chassis and power supply capacity. The 1746-NO4I requires 55 mA at 5 V and 195 mA at 24 V. If your system is older, consider upgrading to this module for improved reliability. UBEST Automation (ubest101) stocks genuine replacement parts for quick delivery.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44403727401059,"sku":"1746-NO4I","price":273.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1746-NO4I_3.jpg?v=1785006119","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1746-no4i-slc-500-analog-output-module","provider":"PLC Source PRO","version":"1.0","type":"link"}