{"product_id":"allen-bradley-1794-om8-high-voltage-ac-digital-output-module","title":"Allen-Bradley 1794-OM8 FLEX I\/O 8-Point AC Digital Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1794-OM8 is a high-performance 8-point digital AC output module designed for the FLEX I\/O distributed system. This module provides a reliable interface between PLC\/PAC control logic and high-voltage AC field devices, such as actuators, solenoids, and alarm indicators. Engineered for space-efficient industrial applications, the 1794-OM8 allows for seamless integration into distributed control architectures, supporting a nominal output voltage of 240V AC.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8-Point Discrete Output Configuration\u003c\/li\u003e\n\u003cli\u003eHigh-Voltage AC Switching (159V to 264V AC range)\u003c\/li\u003e\n\u003cli\u003eModular FLEX I\/O Architecture for flexible system design\u003c\/li\u003e\n\u003cli\u003eZero-Cross Switching Technology to reduce electrical noise\u003c\/li\u003e\n\u003cli\u003eHot-swappable design when used with compatible terminal bases\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePackaging and bottling line control\u003c\/li\u003e\n\u003cli\u003eAssembly automation systems\u003c\/li\u003e\n\u003cli\u003eFluid handling and chemical dosing systems\u003c\/li\u003e\n\u003cli\u003eIndustrial HVAC control machinery\u003c\/li\u003e\n\u003cli\u003eRemote I\/O distributed control nodes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1794-OM8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e8, non-isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Output Voltage\u003c\/td\u003e\n\u003ctd\u003e240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e159V to 264V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003e4.0 A total (8 outputs @ 500 mA each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current\u003c\/td\u003e\n\u003ctd\u003e7 A for 40 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-state Leakage Current\u003c\/td\u003e\n\u003ctd\u003e2.5 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexbus Current\u003c\/td\u003e\n\u003ctd\u003e60 mA @ 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e5.0 W @ 0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e17.1 BTU\/hr @ 0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Secure the compatible FLEX I\/O terminal base onto a 35 x 7.5mm DIN rail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyswitch:\u003c\/strong\u003e Set the keyswitch on the terminal base to position 8 to ensure mechanical compatibility with the 1794-OM8 module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Insertion:\u003c\/strong\u003e Align the module with the terminal base slots, ensuring pins are straight, and press firmly until the latching mechanism clicks into place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Ensure all field power is disconnected before installing or removing the module. Use appropriate wire gauges for the terminal base connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Ensure adequate ventilation for heat dissipation; avoid mounting near high-EMI sources or extreme heat zones.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 1794-OM8?\u003c\/h3\u003e\u003cp\u003eThe 1794-OM8 is a digital output module used to interface a FLEX I\/O system with 240V AC field devices, allowing the controller to switch high-voltage loads.\u003c\/p\u003e\u003ch3\u003eIs this module hot-swappable?\u003c\/h3\u003e\u003cp\u003eYes, the FLEX I\/O architecture allows for the electronic module to be removed and replaced while the system is powered, provided it is mounted on a compatible, pre-wired terminal base.\u003c\/p\u003e\u003ch3\u003eWhat is the maximum current capacity?\u003c\/h3\u003e\u003cp\u003eThe module supports a maximum of 500 mA per output, with a total module current limit of 4.0 A.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50912041337084,"sku":"1794-OM8","price":77.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_f3baa135-1cb9-4a5c-8beb-ae09da968130.jpg?v=1785723113","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1794-om8-high-voltage-ac-digital-output-module","provider":"Electronic PLC","version":"1.0","type":"link"}