{"product_id":"allen-bradley-1794-ow8xt-flex-i-o-relay-output-module","title":"Allen-Bradley 1794-OW8XT Flex I\/O Relay Output Module","description":"\u003ch2\u003eAllen-Bradley 1794-OW8XT Flex I\/O Relay Output Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for relay-based discrete output switching in the Allen-Bradley Flex I\/O 1794 system, the \u003cstrong\u003eAllen-Bradley 1794-OW8XT\u003c\/strong\u003e (\u003cstrong\u003e1794-OW8XT\u003c\/strong\u003e Flex I\/O Relay Output Module) provides direct physical\/electrical execution through eight isolated normally open relay output channels.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1794-OW8XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFlex I\/O Relay Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eFlex I\/O 1794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-4 to 158 deg F (-20 to 70 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e8 relay outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating\u003c\/td\u003e\n\u003ctd\u003e250 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eIsolated normally open relay contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage Range\u003c\/td\u003e\n\u003ctd\u003e19.2 to 31.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e126 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current\u003c\/td\u003e\n\u003ctd\u003e5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-state Leakage Current\u003c\/td\u003e\n\u003ctd\u003e1.0 mA through snubber circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Contact Load\u003c\/td\u003e\n\u003ctd\u003e100 uA at 100 mV DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Contact Resistance\u003c\/td\u003e\n\u003ctd\u003e30 milliohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Bounce Time\u003c\/td\u003e\n\u003ctd\u003e1.2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e1 operation per 3 s (0.3 Hz at rated load) max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e18.8 BTU\/hr max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and Flex I\/O Backplane Integration Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1794-OW8XT operates as a discrete output node within the Flex I\/O 1794 platform architecture. The module exchanges output commands through the FlexBus interface and maintains isolated relay contact switching between the controller-side communication bus and external field wiring.\u003c\/p\u003e\n\u003cp\u003eThe module supports I\/O density scaling through the Flex I\/O modular rack concept, allowing multiple signal modules to be installed on a common adapter-based network segment. Firmware flash compatibility depends on the installed Flex I\/O adapter and controller configuration.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Are the relay output channels isolated from each other?\u003cbr\u003eA: The 1794-OW8XT provides isolated normally open relay outputs. Each relay channel operates as an independent physical switching path for connected field devices.\u003c\/p\u003e\n\u003cp\u003eQ: What protection is recommended for the relay output wiring?\u003cbr\u003eA: Output channels should be protected with suitable external fusing according to the connected load requirements and field circuit design.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module require a separate external power supply connection?\u003cbr\u003eA: The module operates with a 19.2 to 31.2 VDC supply range and uses FlexBus communication through the Flex I\/O system architecture.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1794-OW8XT module on the compatible Flex I\/O terminal base and verify correct mechanical engagement before applying system power.\u003c\/p\u003e\n\u003cp\u003eUse field wiring practices appropriate for relay contact circuits. Separate relay output wiring from high-current conductors and high-noise switching circuits where possible. Connect cable shields according to the grounding requirements of the installation design.\u003c\/p\u003e\n\u003cp\u003eVerify that external protective devices are installed for connected loads, especially for inductive equipment that may generate switching transients. Confirm terminal assignments, relay contact states, and controller output addressing before commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43782763806810,"sku":"1794-OW8XT","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-OW8XT2.jpg?v=1785815528","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-ow8xt-flex-i-o-relay-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}