{"product_id":"1746-ob16-allen-bradley-slc-500-digital-24v-dc-output-module-16-channel","title":"1746-OB16 | Allen-Bradley SLC 500 Digital 24V DC Output Module 16-Channel","description":"\u003ch3\u003e\u003cstrong\u003eTechnical Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-OB16 (Cat No. 1746-OB16)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-density digital output module designed for the Allen-Bradley SLC 500 fixed or modular hardware style. This module features 16 sourcing outputs, providing a reliable interface between the PLC backplane and field devices such as solenoids, motor starters, and indicators. Engineered for high-speed switching, it offers a rapid signal transition time, making it suitable for time-critical control applications. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-OB16 (1746-OB16)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes the SLC backplane for both communication and logic-side power, ensuring seamless integration within the Rockwell Automation ecosystem.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDetailed Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAllen-Bradley \/ Rockwell Automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Family:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSLC 500 Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDigital DC Source Output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-OB16 (1746-OB16)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNumber of Outputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16 Points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNominal Operating Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e24V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e10V to 30V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current Draw (5.1V DC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.280 A (280mA)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eContinuous Current per Point:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.5A @ 30 °C (86 °F); 0.25A @ 60 °C (140 °F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Current per Module:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8.0A @ 30 °C; 4.0A @ 60 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurge Current per Point:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1.0A for 10ms (repeatable every 2 seconds)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Delay (Off to On):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMax 0.1 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Delay (On to Off):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMax 1.0 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOff-State Leakage Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaximum 1.0 mA\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\u003eMaximum 1.2V at 0.5A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e7.6 Watts (Total)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1500V AC (between backplane and I\/O)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eModule Comparison and Selection\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWhen selecting between the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-OB16 (1746-OB16)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand other SLC modules, it is important to note that the OB16 is a sourcing module (sends current to the load). If your field devices require a sinking configuration (drawing current from the load), the 1746-OV16 would be the appropriate alternative. For applications requiring higher current capacity per point, the 1746-OBP16 provides similar density with enhanced power handling.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Questions for Engineers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require an external power supply?\u003c\/strong\u003eYes. While the logic side is powered by the SLC backplane, the field-side outputs require a 10-30V DC external power source connected to the module terminals to drive the connected loads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the module protected against short circuits?\u003c\/strong\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-OB16 (1746-OB16)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edoes not include internal electronic short-circuit protection. It is highly recommended to use external fuses (such as 1746-F1 or equivalent) to protect the circuitry from overcurrent conditions.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":52913803231416,"sku":"1746-OB16","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1746-OB16.jpg?v=1772765014","url":"https:\/\/www.globalpetroparts.com\/products\/1746-ob16-allen-bradley-slc-500-digital-24v-dc-output-module-16-channel","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}