{"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\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eWhen a fault threatens to disrupt your industrial control system, the Allen-Bradley 1794-OB8EP Flex I\/O Digital DC Output Module acts decisively. This module integrates an electronic fuse (EP) that disconnects outputs upon fault detection, protecting downstream equipment and minimizing downtime. Designed for the Flex I\/O family, the 1794-OB8EP provides 8 sourcing current outputs with a 24V DC nominal on-state voltage and a 2A maximum output current rating per channel.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eThe 1794-OB8EP delivers reliable performance under demanding conditions. Key specifications from the datasheet include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-state Voltage Drop max.:\u003c\/strong\u003e 0.2V DC – ensures efficient power delivery with minimal loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-state Leakage Current max.:\u003c\/strong\u003e 0.5mA – prevents false activation when outputs are off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e 50V Continuous – protects against ground loops and transients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexbus Current:\u003c\/strong\u003e 73mA @ 5V DC – low backplane power consumption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 5.5W @ 31.2V DC max. – heat generated is manageable for dense enclosures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e 18.8 BTU\/hr. @ 31.2V DC max. – aids in thermal management design.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplication Scenarios\u003c\/h2\u003e\u003cp\u003eThe 1794-OB8EP excels in environments where output faults can cause costly shutdowns. Typical applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConveyor systems:\u003c\/strong\u003e Sourcing outputs drive solenoids and motor starters; the electronic fuse prevents overcurrent damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging machinery:\u003c\/strong\u003e Fast 0.1ms off-to-on and on-to-off delay times support high-speed actuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial handling:\u003c\/strong\u003e The 24V DC nominal voltage aligns with standard control voltages, simplifying integration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eMount the 1794-OB8EP on a DIN rail by snapping it into place. No direct wiring is needed on the module itself – connections are made through the terminal base unit. Compatible bases include 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, and 1794-TBKD. The module supports hot insertion and removal, reducing system restart overhead. Ensure an external power supply of 19.2–31.2V DC with less than 5% AC ripple is available, drawing 20–35mA.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1794-OB8EP communicates over multiple networks: ControlNet, DeviceNet, EtherNet\/IP, and Universal Remote I\/O. This flexibility allows seamless integration into Rockwell Automation architectures and mixed-vendor systems. The module’s 16 yellow LED status indicators provide real-time per-channel feedback for input and output signals.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore ordering, confirm that your system’s backplane power supply can deliver 73mA at 5V DC for the Flexbus. Verify the terminal base unit compatibility with your existing wiring scheme. For extreme environments, consider the XT version of the 1794-OB8EP, which extends operating temperature range and reduces panel costs. UBEST Automation offers genuine Allen-Bradley 1794-OB8EP modules with full manufacturer support. Trust UBEST Automation for reliable industrial spares that keep your operations running.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44403923484771,"sku":"1794-OB8EP","price":209.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1794-OB8EP_3.jpg?v=1785013426","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1794-ob8ep-flex-i-o-digital-dc-output-module","provider":"PLC Source PRO","version":"1.0","type":"link"}