{"product_id":"allen-bradley-1756-ob16-controllogix-dc-output-module","title":"Allen-Bradley 1756-OB16 ControlLogix DC Output Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OB16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a standard DC digital output module for ControlLogix systems, providing 16 sourcing (PNP) outputs for controlling field devices in industrial automation environments. Developed by\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley\u003c\/strong\u003e, this module is designed for consistent switching performance and reliable operation in 24V DC control systems.\u003c\/p\u003e\n\u003cp\u003eThe module interfaces directly with the ControlLogix backplane, enabling communication with the controller while delivering output signals to connected loads such as solenoids, relays, and indicator devices. It integrates built-in protection mechanisms and diagnostic capabilities, ensuring dependable system operation and simplified troubleshooting.\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OB16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis optimized for general-purpose discrete output tasks where channel isolation is not required but stable performance and efficient load handling are essential.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Functional Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e16 sourcing DC outputs for industrial control applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for 24V DC systems with wide operating range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFast switching suitable for typical machine control tasks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated protection against short-circuit and overcurrent conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBackplane communication with controller for diagnostics and status monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with standard removable terminal blocks\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=\"\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\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\u003e1756-OB16\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDC Digital Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eSourcing (PNP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10–31.2 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent per Output\u003c\/td\u003e\n\u003ctd\u003e0.5 A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent per Module\u003c\/td\u003e\n\u003ctd\u003e8 A @ 30°C; 4 A @ 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current\u003c\/td\u003e\n\u003ctd\u003e2 A for 10 ms (repeatable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOFF-State Leakage Current\u003c\/td\u003e\n\u003ctd\u003e≤ 0.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-State Voltage Drop\u003c\/td\u003e\n\u003ctd\u003e≤ 1.2 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003eApprox. 75 mA @ 5.1 V; 2 mA @ 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003eApprox. 2.5–3.3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250 V continuous (field to backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003eNo (grouped design)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Features\u003c\/td\u003e\n\u003ctd\u003eShort-circuit, overcurrent, thermal shutdown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block\u003c\/td\u003e\n\u003ctd\u003e36-pin removable RTB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible RTBs\u003c\/td\u003e\n\u003ctd\u003e1756-TBCH, 1756-TBNH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Width\u003c\/td\u003e\n\u003ctd\u003e1 slot\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\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eOpen-style (panel mounting required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OB16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis widely used in automation systems where multiple discrete outputs must be controlled efficiently. Typical applications include driving relays, solenoid valves, stack lights, and contactors in manufacturing, packaging, and material handling systems.\u003c\/p\u003e\n\u003cp\u003eIt is particularly suitable for applications where high channel density and reliable switching are required without the need for channel-to-channel isolation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 1756-OB16 suitable for inductive loads?\u003c\/strong\u003e\u003cbr\u003eYes, but external suppression components such as flyback diodes are recommended to protect the outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module provide channel isolation?\u003c\/strong\u003e\u003cbr\u003eNo, the outputs are not individually isolated. For isolation requirements, consider models like OB16I or OB16E.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of outputs does it provide?\u003c\/strong\u003e\u003cbr\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OB16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides sourcing (PNP) outputs, supplying voltage to the load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it installed?\u003c\/strong\u003e\u003cbr\u003eIt is inserted into any slot of a ControlLogix chassis and connects via a removable terminal block.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43321118556250,"sku":"1756-OB16","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-OB16.jpg?v=1778050324","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-ob16-controllogix-dc-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}