{"product_id":"allen-bradley-1756-oa16-controllogix-16-point-ac-output-module","title":"Module de sortie AC 16 points ControlLogix Allen-Bradley 1756-OA16","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OA16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance discrete AC output module for the Allen-Bradley ControlLogix platform. It features\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e16 outputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned to interface with 120\/240V AC devices such as motor starters, solenoids, and indicators. The module utilizes TRIAC switching technology, which provides a reliable, solid-state solution for standard industrial AC loads.\u003c\/p\u003e\n\u003cp\u003eThe outputs are organized into two isolated groups of eight points each. This architecture allows the module to handle different AC phases or voltage sources within the same module, provided they stay within the 74…265V AC operating range. With built-in mechanical fusing and support for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eScheduled Outputs\u003c\/strong\u003e, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OA16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a robust choice for time-critical AC control applications.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-OA16 is engineered for safety and precise AC switching:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Group Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16 points are split into two groups of 8, with 250V continuous isolation between groups and from the backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTRIAC Switching:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEmploys zero-crossing switching to minimize electrical noise and extend the life of connected AC components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEach group is mechanically fused with a 3.15 A slow-blow fuse (Littelfuse p\/n H2153.15) to protect module circuitry from over-current conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBroad Voltage Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile nominally 120\/240V, it is specified to operate reliably from 74V to 265V AC at both 50 and 60 Hz frequencies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConfigurable States:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUsers can define how each point behaves during a PLC Fault or Program mode (Hold Last State, On, or Off).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1756-OA16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley (Rockwell Automation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 (8 per group)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240V AC 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e74…265V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent per Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 A max @ 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent per Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 A max @ 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Delay (Off to On)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.3 ms @ 60 Hz \/ 11 ms @ 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurge Current (Point)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A for 43 ms (repeatable every 2 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFusing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.15 A @ 250V (1 per group)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.17 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the minimum load requirement for the 1756-OA16?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module requires a minimum load current of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e10 mA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eper point to ensure the TRIAC stays latched. If you are driving a very high-impedance device (like a tiny neon lamp or high-end electronic relay), the output may not turn off correctly or could \"flicker\" due to leakage current.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I do if my TRIAC output latches \"On\" with a small load?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor loads between 10…50 mA, the module has a lower commutating\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$dv\/dt$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003erating (\u003cspan class=\"math-inline\"\u003e$0.2V\/\\mu s$\u003c\/span\u003e). If the TRIAC latches on unexpectedly, you may need to add an external resistor across the output and L2 to increase the total current draw to at least 50 mA, which raises the rating to\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$4V\/\\mu s$\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace the internal fuses?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The module uses mechanical fuses (Littelfuse p\/n H2153.15). However, if a fuse blows, it is critical to investigate the load for a short circuit before replacing it to prevent damage to the RTB or module.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiring and Grouping\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Blocks:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompatible with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-TBNH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(NEMA screw) or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-TBSH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Spring clamp) 20-pin removable terminal blocks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommoning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGroup 0 (Points 0–7) and Group 1 (Points 8–15) have independent L1 and L2 connections. Do not mix DC power with this AC module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePilot Duty:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module is rated for 0.5 A pilot duty, making it suitable for controlling the coils of large motor starters (NEMA size 4 or smaller).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLeakage Current Considerations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe TRIAC outputs have a maximum off-state leakage current of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3 mA\u003c\/strong\u003e. In systems with high-sensitivity inputs or very small loads, this leakage may be enough to keep a device energized. Always verify that your load's \"drop-out\" current is significantly higher than 3 mA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZero-Crossing Switching\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module utilizes zero-crossing synchronization, meaning it waits for the AC sine wave to cross 0V before turning the output on or off. This significantly reduces Inrush Current and Electromagnetic Interference (EMI), which is vital for the longevity of the module and surrounding electronic equipment.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695190307179,"sku":"1756-OA16","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1756-oa16-controllogix-discrete-output-module-jzpyw3o4hmr_045a7691-3768-4890-9e91-a8e0638b6e83.jpg?v=1766114605","url":"https:\/\/www.plcprotech.com\/fr\/products\/allen-bradley-1756-oa16-controllogix-16-point-ac-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}