{"product_id":"ab-1734-ob8e-24v-dc-electronically-protected-digital-output","title":"AB 1734-OB8E | 24V DC Electronically Protected Digital Output","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1734-OB8E\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides high-density discrete output control in a compact POINT I\/O form factor. This Series C module features eight sourcing 24V DC outputs, specifically designed for driving solenoids, actuators, and motor starters. Unlike standard modules, the \"E\" designation signifies\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eElectronic Protection\u003c\/strong\u003e, allowing the module to detect and survive short-circuit conditions without damaging internal circuitry or requiring external fuses. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ensuring your distributed control architecture benefits from the latest hardware revisions and diagnostic capabilities.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Outputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Sourcing (Electronically Protected)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10V DC to 28.8V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Current Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0 A per channel (8.0 A per module max)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSolid-state (Source)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50V Continuous (Tested to 2500V DC for 60s)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePOINTBus Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e75 mA @ 5V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 Watts (Maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eShort-circuit and Overload (Electronic)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-20 to 55 °C (-4 to 131 °F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Yellow (Output), 2 Green\/Red (Module\/Network)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSelf-Healing Electronic Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1734-OB8E monitors each channel for overcurrent and short-circuit events. If a fault occurs, the module automatically shuts down the affected channel to prevent hardware failure, then attempts to restart once the fault clears. This eliminates the need for manual fuse replacement in inaccessible remote enclosures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpace-Efficient Distributed Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe narrow footprint of the POINT I\/O system allows the 1734-OB8E to mount in tight terminal boxes or on machine-mounted skids. This proximity to field devices reduces long cable runs and minimizes electromagnetic interference (EMI).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGranular Diagnostic Feedback:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndividual channel status LEDs instantly identify failed field wiring or shorted actuators. This visual feedback, combined with backplane diagnostics, significantly reduces Mean Time to Repair (MTTR) by pinpointing the exact location of the electrical fault.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Current Sourcing Capability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite its small size, each point sources up to 1.0 Amp. This allows the module to drive larger industrial loads and pilot devices directly, often removing the requirement for intermediate interposing relays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 1734-OB8 and the 1734-OB8E?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1734-OB8 is a standard sourcing output module without specialized diagnostics. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1734-OB8E\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eadds\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eElectronic Protection\u003c\/strong\u003e. It can detect short circuits and overloads at the channel level, providing enhanced system protection and diagnostic messaging to the PLC that the standard version lacks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 1734-OB8E require a specific terminal base?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is compatible with standard POINT I\/O terminal bases, such as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1734-TB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1734-TBS\u003c\/strong\u003e. The terminal base facilitates the field wiring and the connection to the POINTBus backplane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix Series C modules with older Series A or B hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Series C modules maintain backward compatibility with previous Series A and B terminal bases and adapters. However, ensure your controller's electronic keying settings in Studio 5000\/RSLogix 5000 allow for the Series C revision to ensure seamless communication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I reset a channel after a short circuit occurs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe electronic protection is typically self-resetting once the overload condition is removed. In some software configurations, you may also toggle the output bit or send a reset command via the controller to clear the diagnostic latch.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43359818678362,"sku":"1734-OB8E","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/14_853f687c-d6bd-47f8-a5b1-fbad39b00674.jpg?v=1778640800","url":"https:\/\/www.spareoil.com\/products\/ab-1734-ob8e-24v-dc-electronically-protected-digital-output","provider":"SpareOil Automation","version":"1.0","type":"link"}