{"product_id":"allen-bradley-compact-i-o-1769-ob32-32-point-24vdc-sourcing-discrete-output-module","title":"Allen-Bradley Compact I\/O 1769-OB32 32-Point 24VDC Sourcing Discrete Output Module","description":"\u003ch2\u003e\u003cstrong\u003eModule Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-OB32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-density solid-state output module designed for the Allen-Bradley CompactLogix and MicroLogix 1500 controller platforms. Delivering 32 points of 24V DC sourcing (positive logic) power in a compact form factor, this module is engineered for high-volume discrete control. It is frequently utilized to drive solenoid valves, actuators, and indicator lights in automated assembly lines and process control systems where space efficiency is a priority.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eDetailed Engineering Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-OB32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides two independent groups of 16 points, allowing for segmented power distribution and enhanced circuit protection across the 32-point array.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNumber of Outputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e32 (Arranged in 2 groups of 16)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Category:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e24V DC Source (Positive Logic)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20.4 to 26.4V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOutput Current per Point:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.5A @ 60°C (Increases to 1.0A @ 30°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Module Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.0A @ 60°C (Max 8.0A @ 30°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurge Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.0A for 10 ms (Repeatable every 2 seconds)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eResponse Time (Typical):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.1 ms (On) \/ 1.0 ms (Off)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current Draw:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e300 mA at 5.1V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Heat Dissipation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.5 Watts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOn-State Voltage Drop:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1.0V DC at 1.0A maximum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e75V DC continuous (Reinforced insulation)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSlot Width:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1.5 modules (Note the slightly wider physical footprint)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eApproximately 0.992 lbs (450 g)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation and Power Dynamics\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWhen integrating the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-OB32\u003c\/strong\u003e, engineers must account for its specific\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePower Supply Distance Rating of 6\u003c\/strong\u003e. This means the module cannot be placed more than six slots away from the system power supply (such as a 1769-PA4 or 1769-PB4). Additionally, because this is a sourcing module, the load must be connected between the module output terminal and the negative DC common.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eThermal Management and Derating\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eA critical design factor for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-OB32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis its thermal performance. At higher ambient temperatures (60°C), the current capacity per point is halved to 0.5A. If your application requires driving high-current DC loads in a warm enclosure, ensure the cabinet has adequate ventilation or reduce the simultaneous \"On\" count of the outputs to stay within the 4.0A module limit.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical FAQ\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of terminal block does this module require?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-OB32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-RTBN18\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eremovable terminal block. This allows for pre-wiring of the field signals and rapid module replacement without disconnecting individual wires, significantly reducing maintenance downtime.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support sinking loads?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-OB32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a sourcing-only module. It switches the positive (+) 24V DC leg to the load. For sinking applications where the PLC must provide a path to ground, a different module like the 1769-OV32 would be required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix different voltages between the two groups?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Since the two groups of 16 are isolated from each other, you can technically provide different 24V DC power sources to each group, provided they fall within the 20.4–26.4V DC operating range.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52457397289269,"sku":"1769-OV32T","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1769-OV32T.jpg?v=1773977692","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-compact-i-o-1769-ob32-32-point-24vdc-sourcing-discrete-output-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}