{"product_id":"1794-om8-digital-output-module-allen-bradley-flex-i-o-series","title":"1794-OM8 Digital Output Module Allen-Bradley Flex I\/O Series","description":"\u003ch3\u003eModule Architecture Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #004080;\"\u003e1794-OM8\u003c\/strong\u003e functions as an 8-channel non-isolated AC digital output module built for the \u003cstrong style=\"color: #004080;\"\u003eFlex I\/O\u003c\/strong\u003e architecture by \u003cstrong style=\"color: #004080;\"\u003eAllen-Bradley\u003c\/strong\u003e (Rockwell Automation). This \u003cstrong style=\"color: #004080;\"\u003e1794 Series\u003c\/strong\u003e unit mounts onto terminal bases like the 1794-TBN or 1794-TBNF, permitting live module insertion and removal under power (RIUP) to eliminate system downtime.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification Matrix\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer \/ Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Catalog Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong style=\"color: #004080;\"\u003e1794-OM8\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series \/ Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1794-flex-i-o\"\u003eFlex I\/O\u003c\/a\u003e Digital AC Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240V AC (Operating range: 159 to 264V AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500mA max per output (4.0A total max per module across 8 outputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Characteristics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V AC max state drop @ 0.5A; 2.5mA max off-state leakage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlexbus Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal \u0026amp; Power Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5W max power dissipation; 17.1 BTU\/hr thermal output at 0.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCommercial Terms and Logistics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory Warranty: Full 12-month structural and operational integrity coverage\u003c\/li\u003e\n\u003cli\u003eFulfillment Schedule: 24 to 48 hour dispatch window from warehouse stock\u003c\/li\u003e\n\u003cli\u003eGlobal Courier Partners: Express delivery via FedEx, UPS, and DHL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTarget Equipment and Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwitches high-voltage AC loads including industrial solenoids, heavy contactors, and motor starters.\u003c\/li\u003e\n\u003cli\u003eDrives pilot lights and visual alarm beacons across distributed manufacturing skids.\u003c\/li\u003e\n\u003cli\u003eIntegrates into ControlNet, DeviceNet, EtherNet\/IP, and Universal Remote I\/O network architectures.\u003c\/li\u003e\n\u003cli\u003eDeploys in XT variant panels designed to withstand extreme temperature and vibration environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem Diagnostic and Monitoring Capabilities\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEquipped with 16 yellow status LED indicators mapped to individual channels for real-time output signal verification.\u003c\/li\u003e\n\u003cli\u003eHot-insertion detection flags hardware swaps instantly without triggering controller major faults.\u003c\/li\u003e\n\u003cli\u003eFlexbus continuous isolation monitoring protects internal backplane logic from high-voltage transients up to 250V.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eAutomation engineers transitioning legacy AC control architectures often overlook off-state leakage currents, which can inadvertently hold small inductive relays closed. Global PLC Spare HUB recommends verifying that connected load impedances match the 2.5mA max leakage threshold of the \u003cstrong style=\"color: #004080;\"\u003e1794-OM8\u003c\/strong\u003e. Pairing this module with 1794-TBNF terminal bases equipped with built-in fusing provides localized short-circuit isolation and prolongs field actuator life.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support live replacement without shutting down the main chassis rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the module supports Removal and Insertion Under Power (RIUP), allowing technicians to swap units on the terminal base without powering down the network.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the minimum operating current requirement per channel at elevated temperatures?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module requires a minimum load current of 5mA per output when operating at the maximum ambient temperature of 55 degrees Celsius.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich terminal base units are mechanically compatible with this catalog number?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt mounts directly onto standard 1794-TBN and fused 1794-TBNF terminal base units via standard DIN rail mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module handle thermal management under full 4.0A load conditions?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt generates a maximum power dissipation of 5W and a thermal dissipation of 17.1 BTU\/hr, which requires maintaining ambient cabinet temperatures between 0 and 55 degrees Celsius.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre there specialized hardware versions available for harsh or corrosive plant sites?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, Extended Temperature (XT) variants of this module are engineered to operate reliably in extreme environmental conditions, minimizing long-term panel maintenance costs.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013909569718,"sku":"1794-OM8","price":181.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1794-OM8_fef9ab52-0a4e-4059-90c5-d5e163680840.jpg?v=1789025407","url":"https:\/\/www.plcsparehub.com\/products\/1794-om8-digital-output-module-allen-bradley-flex-i-o-series","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}