{"product_id":"allen-bradley-1771-ob-plc-5-digital-output-module","title":"Allen-Bradley 1771-OB PLC-5 Digital Output Module","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-OB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an 8-channel digital DC output module designed for PLC-5 control systems. It provides discrete output switching for field devices such as solenoids, relays, indicators, and actuators in industrial automation environments.\u003c\/p\u003e\n\u003cp\u003eEngineered for rack-based PLC architecture, the module delivers stable switching performance with built-in protection features and supports high-current load applications across distributed control systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e8 independent digital DC output channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSource-type output configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for PLC-5 1771 series chassis integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh current switching capability for industrial loads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConformal coated electronics for improved environmental resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRack-mounted installation with dedicated wiring arm support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFast switching response for real-time control applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for both machine-level and process-level automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1771-OB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e8 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDC Source Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10–27 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e10–60 V DC (System Rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e165 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current per Output\u003c\/td\u003e\n\u003ctd\u003e1.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Total Module Current\u003c\/td\u003e\n\u003ctd\u003e8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e16.9 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e57.6 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Turn-Off Delay (DC)\u003c\/td\u003e\n\u003ctd\u003e~50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Turn-Off Delay (AC equivalent)\u003c\/td\u003e\n\u003ctd\u003e~45 ±15 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Format\u003c\/td\u003e\n\u003ctd\u003eBDC \/ Natural Binary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Interface\u003c\/td\u003e\n\u003ctd\u003e1771-WH Wiring Arm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eRack Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Protection\u003c\/td\u003e\n\u003ctd\u003eConformal Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e5–95% Non-Condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.16 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Areas\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-OB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoutput module is commonly applied in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial machine control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConveyor and material handling equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess automation output control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSolenoid and actuator switching circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePackaging machinery systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFactory production line control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRelay interface applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module is designed for integration within Allen-Bradley PLC-5 1771 chassis systems and requires a compatible rack-mounted backplane architecture. It operates alongside PLC processors, I\/O adapters, and power supply modules within the same system.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eHow many outputs does the 1771-OB provide?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIt includes 8 discrete DC output channels.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat type of loads can it control?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIt is suitable for resistive and inductive loads such as relays, solenoids, and indicators within rated current limits.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIs the module protected against environmental conditions?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. The module is conformal coated for improved resistance to industrial environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDoes it require a wiring arm?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. The 1771-WH wiring arm is used for field wiring connections.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43378760876122,"sku":"1771-OB","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-OB2.jpg?v=1778825963","url":"https:\/\/www.plcmasters.com\/es\/products\/allen-bradley-1771-ob-plc-5-digital-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}