{"product_id":"1791-8ac-allen-bradley-ac-i-o-module","title":"1791-8AC Allen-Bradley AC I\/O Module","description":"\u003ch2\u003e\u003cb\u003eAllen-Bradley 1791-8AC AC I\/O Module for Remote I\/O Systems\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cb\u003eKey Technical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e \u003cspan style=\"color: #2e74b5;\"\u003eAllen‑Bradley\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e \u003cspan style=\"color: #2e74b5;\"\u003e\u003cb\u003e1791-8AC\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduct Line:\u003c\/b\u003e 1791 Block I\/O\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage Rating:\u003c\/b\u003e \u003cspan style=\"color: #2e74b5;\"\u003e120V AC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNumber of Inputs:\u003c\/b\u003e 8 channels (1 group of 8)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNumber of Outputs:\u003c\/b\u003e 8 channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput On‑State Range:\u003c\/b\u003e 79‑132V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput On‑State Current:\u003c\/b\u003e 5 mA minimum at 79V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Off‑State Voltage:\u003c\/b\u003e 35V AC maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Voltage Range:\u003c\/b\u003e 20‑132V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current (Vertical Mount):\u003c\/b\u003e 300‑600 mA (30‑60°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current (Horizontal Mount):\u003c\/b\u003e 150‑300 mA (30‑60°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExternal Power:\u003c\/b\u003e 85‑132V AC, 150 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIsolation Voltage:\u003c\/b\u003e 500V AC (tested at 1250V AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 6.95\" x 2.7\" x 3.85\" (176.5 x 68.8 x 98 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 0.94 lbs (0.43 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eElectrical \u0026amp; Performance Details\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEach output handles a surge current of 10A for 50ms, recurring every 2 seconds.\u003c\/li\u003e\n\u003cli\u003eThe minimum on‑state output current per channel is 50 mA.\u003c\/li\u003e\n\u003cli\u003eOutputs have a maximum voltage drop of 1.5V at 300 mA.\u003c\/li\u003e\n\u003cli\u003eOff‑state leakage current is limited to 3 mA maximum.\u003c\/li\u003e\n\u003cli\u003eOutput response time is 1\/2 cycle OFF to ON and 8.3 ms ON to OFF at 60 Hz.\u003c\/li\u003e\n\u003cli\u003eMaximum power dissipation is \u003cspan style=\"color: #2e74b5;\"\u003e12.9 Watts\u003c\/span\u003e (43.99 BTU\/hour).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions (FAQ)\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eQ: What is the main function of this module?\u003c\/b\u003e\u003cbr\u003eA: The \u003cb\u003e1791-8AC\u003c\/b\u003e acts as a Remote I\/O adapter, providing 8 AC inputs and 8 AC outputs for distributed systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQ: What controllers are compatible with this module?\u003c\/b\u003e\u003cbr\u003eA: It works with PLC‑2, PLC‑3, PLC‑5, and SLC 500 (with 1747‑SN scanner) platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQ: What is the operating voltage range for the inputs?\u003c\/b\u003e\u003cbr\u003eA: Inputs recognize an on‑state between 79 and 132 volts AC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQ: How many output groups does it have?\u003c\/b\u003e\u003cbr\u003eA: All 8 outputs are in one group, controlled together via the RIO network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQ: What is your shipping and return policy?\u003c\/b\u003e\u003cbr\u003eA: We ship within 5 days via major carriers and offer a 30‑day return policy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003csmall\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\u003cbr\u003ePhone: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47289528353026,"sku":"1791-8AC","price":216.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1791-8AC.jpg?v=1770801851","url":"https:\/\/www.nex-auto.com\/hu\/products\/1791-8ac-allen-bradley-ac-i-o-module","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}