{"product_id":"allen-bradley-1791-32b0-input-module-32-dc-channels","title":"Allen-Bradley 1791-32B0 Input Module | 32 DC Channels","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1791-32B0: High-Density DC Input Module\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Product Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e Allen-Bradley \u003cstrong\u003e1791-32B0\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e Discrete DC Input Only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Input Channels:\u003c\/strong\u003e \u003cspan style=\"color: #2ecc71;\"\u003e32 Channels\u003c\/span\u003e (4 groups of 8).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 24V DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e 10 to 30 Volts DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-State Current:\u003c\/strong\u003e 11 mA maximum at 30V DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-State Voltage:\u003c\/strong\u003e Maximum 5V DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 3.4 kΩ maximum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Power:\u003c\/strong\u003e 19.2-30V DC external supply (300 mA).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance \u0026amp; Compatibility Data\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 16.3 Watts maximum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e 55.6 BTU\/hour maximum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Rating:\u003c\/strong\u003e 500V AC (group-to-group, group-to-logic, power to RIO).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Outputs:\u003c\/strong\u003e Works with 1771 modules, contactors, and relays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Rule:\u003c\/strong\u003e Device off-state current must be less than module's minimum off-state current (1.5mA).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat You Receive\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOne Allen-Bradley \u003cstrong\u003e1791-32B0\u003c\/strong\u003e Input Module.\u003c\/li\u003e\n\u003cli\u003eNecessary installation documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Shipping:\u003c\/strong\u003e Available via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Guarantee:\u003c\/strong\u003e Protected by a 12-month warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eExpert FAQs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat sensors work with the 1791-32B0?\u003c\/strong\u003e It works with standard 10-30V DC sensors like proximity switches and photoelectrics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhy is off-state current important for compatibility?\u003c\/strong\u003e If a connected device leaks too much current when OFF, the module may falsely see it as ON.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I use this with 12V DC sensors?\u003c\/strong\u003e Yes, the 10-30V DC range fully supports common 12V and 24V DC sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow many modules can I connect on one RIO network?\u003c\/strong\u003e You can connect multiple modules, limited by the controller's RIO scanner capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the response time of the inputs?\u003c\/strong\u003e The module responds very quickly, typically within a few milliseconds.\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\u003e\u003cstrong\u003eAuthor: Ubest Automation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e Email: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e Phone: \u003ca href=\"https:\/\/wa.me\/8618030005825\"\u003e+86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51506232361242,"sku":"1791-32B0","price":214.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/1791-32B0-1.jpg?v=1767060642","url":"https:\/\/www.ubestplc.com\/products\/allen-bradley-1791-32b0-input-module-32-dc-channels","provider":"Ubest Automation Limited","version":"1.0","type":"link"}