{"product_id":"allen-bradley-1791-24br-block-i-o-module-24-dc-inputs","title":"Allen-Bradley 1791-24BR Block I\/O Module | 24 DC Inputs","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1791-24BR Block I\/O Module: Technical Overview\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:\u003c\/strong\u003e Allen-Bradley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e1791-24BR\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Line:\u003c\/strong\u003e 1791 Block I\/O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal I\/O Points:\u003c\/strong\u003e 32 Points (Mixed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Type \u0026amp; Count:\u003c\/strong\u003e 24 DC Inputs (3 groups of 8)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Type \u0026amp; Count:\u003c\/strong\u003e 8 Relay Outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Voltage:\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003e24V DC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eElectrical Ratings \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e1791-24BR\u003c\/strong\u003e input on-state range is \u003cspan style=\"color: #e74c3c;\"\u003e10-30V DC\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003eInput on-state current is 2.5 mA min at 10V, 11 mA max at 30V DC.\u003c\/li\u003e\n\u003cli\u003eInput off-state leakage is a maximum of 5V DC at 1.5 mA.\u003c\/li\u003e\n\u003cli\u003eThe relay output handles \u003cspan style=\"color: #e74c3c;\"\u003e20-132V AC at 1A max resistive\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003eAn external 19.2-30V DC, 300 mA power supply is required.\u003c\/li\u003e\n\u003cli\u003eMaximum power dissipation for the module is 14.5 Watts.\u003c\/li\u003e\n\u003cli\u003eIsolation is 500V AC between power, I\/O groups, and logic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental \u0026amp; Physical Data\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003e0 to 60°C (32 to 140°F)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40 to 85°C (-40 to 185°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelative Humidity:\u003c\/strong\u003e 5% to 95% (non-condensing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H x W x D):\u003c\/strong\u003e 6.95\" x 4.35\" x 3.85\" (approx.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 2.38 lbs (1.08 kg)\u003c\/li\u003e\n\u003cli\u003eThe module is designed for \u003cspan style=\"color: #e74c3c;\"\u003evertical DIN rail mounting\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is this module new and original?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we supply only new and original Allen-Bradley products.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the key difference between the 1791-24B8 and 1791-24BR?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003e1791-24BR\u003c\/strong\u003e has 8 relay outputs, while the 24B8 has DC outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What voltage can the relay outputs switch?\u003c\/strong\u003e\u003cbr\u003eA: Relay outputs switch \u003cspan style=\"color: #e74c3c;\"\u003e20-132V AC\u003c\/span\u003e at up to 1 Amp resistive load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How should this module be mounted?\u003c\/strong\u003e\u003cbr\u003eA: For best results, mount the \u003cstrong\u003e1791-24BR\u003c\/strong\u003e vertically on a DIN rail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Do you have this in stock?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we have stock available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is your shipping and return policy?\u003c\/strong\u003e\u003cbr\u003eA: We ship in 5 days and support 30-day returns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.nex-auto.com\/\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e | Phone: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47285606220034,"sku":"1791-24BR","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1791-24BR.jpg?v=1770800664","url":"https:\/\/www.nex-auto.com\/ar\/products\/allen-bradley-1791-24br-block-i-o-module-24-dc-inputs","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}