{"product_id":"1762-ow8-allen-bradley-micrologix-digital-i-o-cards","title":"1762-OW8 Allen-Bradley MicroLogix Digital I\/O Cards","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1762-OW8 is a high-reliability relay output module engineered to serve as a critical expansion component within the MicroLogix 1100, 1200, and 1400 controller ecosystems. As part of the 1762 MicroLogix Expansion I\/O family, this module provides eight isolated relay output points, allowing for the switching of diverse electrical loads that require electrical isolation from the PLC's internal circuitry.\u003c\/p\u003e\n\u003cp\u003eDesigned for maximum operational flexibility, the 1762-OW8 allows engineers to control equipment operating at different voltage levels—ranging from 5V DC to 265V AC—within a single module. Its normally open (NO) relay contact configuration makes it an excellent choice for driving actuators, contactors, pilot lights, and solenoid valves. The module’s robust build ensures consistent performance in demanding industrial environments, providing an efficient path for expanding discrete control capabilities without requiring a complete system overhaul. Whether you are managing small-scale machine logic or complex distributed process control, the 1762-OW8 offers the precision and durability expected from the Allen-Bradley brand.\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\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1762-OW8\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSeries\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMicroLogix 1762\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital I\/O Cards\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTotal Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 (Eight)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAC\/DC Normally Open Relay\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage Range (AC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5-265V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage Range (DC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5-125V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax Current per Point\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGroups\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 Groups\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eChannels Per Group\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSignal Delay\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDIN Rail \/ Panel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.14 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.0 x 8.7 x 10.8 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDistance Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 Modules\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTariff Code\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8537101190\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCountry of Origin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eModel Configuration Explanation\u003c\/h3\u003e\n\u003cp\u003eUnderstanding the 1762-OW8 nomenclature is vital for system planning:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1762:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDenotes the MicroLogix expansion I\/O platform.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eO:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndicates an Output module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eW:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifies the use of Relay contacts, offering the highest level of load flexibility compared to Triac or Transistor outputs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e8:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRepresents the eight discrete output points available for field device connection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cp\u003eThe 1762-OW8 is highly versatile in various industrial sectors:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAutomation Control Panels:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDriving interposing relays for high-current starter coils in motor control centers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding Management Systems:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eControlling HVAC dampers, lighting contactors, and motorized valve actuators.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInterfacing with solenoid-operated pneumatic valves for conveyor sorting and positioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Machines:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTriggering indicators, alarms, and intermediate control relays on high-speed food and beverage processing equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWaste Water Treatment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProviding isolated outputs for chemical dosing pumps and level-sensing valve actuators in remote pump stations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 1762-OW8 is specifically engineered to be \"plug-and-play\" with the MicroLogix 1100, 1200, and 1400 controller platforms. It utilizes the standard 1762 bus connector, ensuring mechanical and electrical alignment with the controller or preceding expansion modules. Engineers should note the power supply distance rating, which limits the placement of this module to a maximum of six units from the base controller, ensuring the backplane provides stable power and communication.\u003c\/p\u003e\n\u003ch3\u003eDeployment Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Placement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePosition the module on a 35mm DIN rail or a flat panel surface within a NEMA-rated enclosure. Ensure that the module is within the distance rating of six units from the CPU.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCable Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse copper wiring suitable for the voltage and current requirements of your field devices. Ensure relay output wiring is segregated from sensitive low-voltage DC input signals to prevent crosstalk.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlign the tongue-and-groove connectors carefully before pressing the module into place. Secure it firmly to the rail to prevent vibration-induced loosening.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Precautions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlways verify voltage isolation before maintenance. Although the module provides galvanic isolation, relay contacts can still carry lethal voltages even if the PLC power is removed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLoad Flexibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCapable of switching both AC and DC voltages, simplifying inventory needs for diverse machine applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGalvanic Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe mechanical relay contacts provide inherent isolation between the logic-level controller and the field-level load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompact Footprint:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-density I\/O in a narrow module design optimizes valuable control cabinet real estate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Maintenance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1762 design allows for straightforward module replacement without extensive downtime in most standard configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1762-OW8 Relay Output Module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard industrial packaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNote: Field wiring terminal blocks are often included; if replacing, verify they are clean and free of corrosion. Ensure system power supply budget is checked before adding multiple 1762-OW8 modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the maximum current I can run through the relay contacts?\u003c\/p\u003e\n\u003cp\u003eEach individual output channel is rated for a maximum of 2.5 A. Ensure the total current load across the module does not exceed the limits specified in the user manual for the specific voltage applied.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan I use this module to switch 240V AC loads?\u003c\/p\u003e\n\u003cp\u003eYes, the module is rated for 5-265V AC. It is capable of handling standard 240V AC industrial control voltages effectively.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs this module hot-swappable?\u003c\/p\u003e\n\u003cp\u003eNo. The MicroLogix 1762 expansion system does not support hot-swapping. Always disconnect power to the controller backplane before adding or removing any expansion module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy is there a \"distance rating\" of 6 modules?\u003c\/p\u003e\n\u003cp\u003eThe distance rating indicates the electrical capacity of the backplane bus. Adding more than six modules from the controller may lead to communication errors or insufficient power delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAre the relay contacts replaceable?\u003c\/p\u003e\n\u003cp\u003eNo, the relay outputs are sealed within the module. If a relay fails due to contact welding or wear, the entire 1762-OW8 module must be replaced.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan I mix AC and DC loads on the same module?\u003c\/p\u003e\n\u003cp\u003eYes, since each channel is isolated, you can switch 120V AC on one channel and 24V DC on another. However, be cautious of local electrical code requirements regarding voltage segregation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the module require an external power supply?\u003c\/p\u003e\n\u003cp\u003eNo, the internal logic is powered through the 1762 backplane. You only need to supply the field power to the relay contact terminals to drive your external loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow long is the signal delay for this relay module?\u003c\/p\u003e\n\u003cp\u003eThe mechanical relay contacts have a signal delay of approximately 10 ms. This is standard for mechanical relays but should be considered if your application requires high-speed switching.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat should I do if a channel output remains stuck \"on\"?\u003c\/p\u003e\n\u003cp\u003eThis is usually caused by \"welded\" relay contacts, often resulting from exceeding the current rating or switching highly inductive loads without surge suppression. Replace the module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066425200813,"sku":"1762-OW8","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1762-OW8-1.jpg?v=1781170833","url":"https:\/\/www.maxwellplc.com\/products\/1762-ow8-allen-bradley-micrologix-digital-i-o-cards","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}