{"product_id":"allen-bradley-1791-16a0-input-module","title":"Allen-Bradley - 1791-16A0 Input Module","description":"\u003ch2\u003eSimplify Distributed I\/O with the Allen-Bradley 1791-16A0\u003c\/h2\u003e\n\u003ch3\u003eCore Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Manufacturer:\u003c\/strong\u003e Allen-Bradley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \u0026amp; Series:\u003c\/strong\u003e \u003cstrong\u003e1791-16A0\u003c\/strong\u003e, part of the 1791 Block I\/O family\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Discrete Input Module, Block I\/O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e \u003cstrong style=\"color: #2e8b57;\"\u003eSixteen (16) 120V AC inputs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Configuration:\u003c\/strong\u003e Organized into 2 independent groups of 8 inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-State Input Voltage Range:\u003c\/strong\u003e 79 to 132 VAC, 47-63 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Power Supply Requirement:\u003c\/strong\u003e 85 to 132 VAC, 47-63 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Supply Current:\u003c\/strong\u003e 150 mA typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput ON-State Current:\u003c\/strong\u003e 5 mA minimum at 79V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput OFF-State Voltage (Max):\u003c\/strong\u003e 35 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e Up to 60°C (140°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Orientation:\u003c\/strong\u003e Vertical or Horizontal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Weight:\u003c\/strong\u003e 1.25 lbs (0.57 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Performance \u0026amp; Integration Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFunctions as a complete distributed I\/O node with \u003cstrong\u003eembedded power supply and PLC interface\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eDesigned for direct connection to common field devices like \u003cstrong style=\"color: #2e8b57;\"\u003elimit switches, pushbuttons, and proximity sensors\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSupports \u003cstrong\u003edaisy-chain network configuration\u003c\/strong\u003e back to a central controller or scanner.\u003c\/li\u003e\n\u003cli\u003eOffers a \u003cstrong\u003emaximum surge current rating\u003c\/strong\u003e of 10A for 50ms (repeatable every 2 seconds).\u003c\/li\u003e\n\u003cli\u003eProvides a \u003cstrong\u003emaximum output rating\u003c\/strong\u003e of 600mA at 30°C, derating to 300mA at 60°C.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003e1791-16A0\u003c\/strong\u003e ensures reliable operation in space-constrained panels with flexible mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Compatibility Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure \u003cstrong\u003eat least 2 inches (5.08 cm) of clearance\u003c\/strong\u003e on all sides for proper ventilation.\u003c\/li\u003e\n\u003cli\u003eConnect compatible 120VAC field instruments to the 16 input channels.\u003c\/li\u003e\n\u003cli\u003eThis input-only module has \u003cstrong\u003e0 outputs\u003c\/strong\u003e; pair it with an output module for complete control.\u003c\/li\u003e\n\u003cli\u003eFor use with 1771 series output modules, verify compatibility regarding OFF-state leakage and ON-state voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How many input channels does this module have?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003e1791-16A0\u003c\/strong\u003e provides 16 discrete 120VAC input channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can it be mounted in any orientation?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it supports both vertical and horizontal mounting for layout flexibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the operating voltage range?\u003c\/strong\u003e\u003cbr\u003eA\u0026gt; The input on-state range is 79-132VAC, and it requires an external power supply of 85-132VAC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What devices can connect to these inputs?\u003c\/strong\u003e\u003cbr\u003eA\u0026gt; It is compatible with standard 120VAC devices like limit switches, pushbuttons, float switches, and selector switches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e© 2025 Ubest Automation Limited. \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e All rights reserved.\u003c\/strong\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e Phone: \u003ca href=\"https:\/\/wa.me\/868618030005825\"\u003e+86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51503033254170,"sku":"1791-16A0","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/1791-16A0-1.jpg?v=1766994754","url":"https:\/\/www.ubestplc.com\/products\/allen-bradley-1791-16a0-input-module","provider":"Ubest Automation Limited","version":"1.0","type":"link"}