{"product_id":"allen-bradley-1794-ob8ep-flex-i-o-digital-dc-output-module","title":"Allen-Bradley 1794-OB8EP FLEX I\/O Digital DC Output Module","description":"\u003ch2\u003eAllen-Bradley 1794-OB8EP FLEX I\/O Digital DC Output Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for sourcing current output execution in the Allen-Bradley FLEX I\/O 1794 system, the \u003cstrong\u003eAllen-Bradley 1794-OB8EP\u003c\/strong\u003e (\u003cstrong\u003e1794-OB8EP\u003c\/strong\u003e Digital DC Output Module) provides direct physical\/electrical execution for 24 VDC field devices.\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-OB8EP\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.25 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5.5 W @ 31.2 VDC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O Digital DC 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\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e8 sourcing current outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-state Voltage Nominal\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-state Voltage Minimum\u003c\/td\u003e\n\u003ctd\u003e19.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003e2.0 A max. per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Module Output Current\u003c\/td\u003e\n\u003ctd\u003e10.0 A total\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-state Voltage Drop\u003c\/td\u003e\n\u003ctd\u003e0.2 VDC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-state Leakage Current\u003c\/td\u003e\n\u003ctd\u003e0.5 mA max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current\u003c\/td\u003e\n\u003ctd\u003e4 A for 50 ms, repeatable every 3 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V continuous, basic insulation tested at 850 VDC for 1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003eNo isolation between individual channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current\u003c\/td\u003e\n\u003ctd\u003e73 mA @ 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e18.8 BTU\/hr @ 31.2 VDC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Terminal Base Units\u003c\/td\u003e\n\u003ctd\u003e1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TB3K, 1794-TB3SK, 1794-TBNK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Protection\u003c\/td\u003e\n\u003ctd\u003eElectronic fuse protection\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 Interface Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1794-OB8EP operates as a FLEX I\/O output node with communication through the FLEXBus interface. The module uses a 73 mA @ 5 VDC backplane current load and transfers controller output commands to field-side sourcing channels. The I\/O density is configured as eight DC output points within a single module position, with terminal base selection determined by installation requirements.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1794-OB8EP provide isolation between individual output channels?\u003cbr\u003eA: No. The module provides field-side to system isolation rated at 50 V continuous, but individual output channels do not have channel-to-channel isolation.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum output current capability of each channel?\u003cbr\u003eA: Each sourcing output channel supports up to 2.0 A maximum output current. The total module output load must remain within the specified 10.0 A maximum.\u003c\/p\u003e\n\u003cp\u003eQ: How is output overcurrent protection implemented?\u003cbr\u003eA: Output channels use electronic fuse protection to limit fault conditions without requiring external individual output fuses.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1794-OB8EP module on the specified FLEX I\/O terminal base unit and verify correct mechanical engagement before applying field power. Use wiring practices suitable for 24 VDC industrial output circuits.\u003c\/p\u003e\n\u003cp\u003eSeparate output wiring from high-voltage power conductors and high-noise sources to reduce electrical interference. Connect cable shields according to the control panel grounding design and maintain proper grounding continuity.\u003c\/p\u003e\n\u003cp\u003eVerify field device polarity before energizing outputs. Confirm that connected loads remain within the per-channel and total module current limits. Check terminal base connections, FlexBus seating, and module locking features during commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43778846294106,"sku":"1794-OE12","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-OE122.jpg?v=1785748781","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-ob8ep-flex-i-o-digital-dc-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}