{"product_id":"allen-bradley-1756-oa8e-industrial-automation-module-reliable","title":"Allen-Bradley 1756-OA8E Industrial Automation Module - Reliable","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1756-OA8E is a ControlLogix digital AC output module engineered for reliable switching of 120 VAC loads in industrial automation environments. As part of the ControlLogix family, this single-slot module delivers eight electronically fused output channels arranged in two groups of four, providing robust point-level protection and simplifying troubleshooting. With a nominal output voltage of 120 VAC and an operating range of 74-132 VAC at 47-63 Hz, the 1756-OA8E handles a wide variety of AC loads, from contactors to solenoid valves.\u003c\/p\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 electronically fused outputs\u003c\/strong\u003e – each channel has built-in electronic fusing, reducing the need for external fuses and minimizing downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide operating voltage range\u003c\/strong\u003e – 74-132 VAC supports fluctuating line conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh current capacity\u003c\/strong\u003e – 2 A per point at 60 °C, 4 A per point at 30 °C (with linear derating).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast output response\u003c\/strong\u003e – 9.3 ms at 60 Hz and 11 ms at 50 Hz for both OFF-to-ON and ON-to-OFF transitions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible installation\u003c\/strong\u003e – fits any slot in a 1756 chassis, with no limit on the number of modules per system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1756-OA8E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eElectronically Fused AC Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e8 (two groups of four)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e74-132 VAC, 47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current per Point\u003c\/td\u003e\n\u003ctd\u003e2 A @ 60 °C; 4 A @ 30 °C (linear derating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current per Module\u003c\/td\u003e\n\u003ctd\u003e8 A @ 30 °C; 4 A @ 60 °C (linear derating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1 VDC)\u003c\/td\u003e\n\u003ctd\u003e200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24 VDC)\u003c\/td\u003e\n\u003ctd\u003e250 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e5.5 W @ 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V continuous (basic insulation, tested at 1200 VAC for 2 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Delay\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\u003eRemovable Terminal Blocks\u003c\/td\u003e\n\u003ctd\u003e1756-TBNH, 1756-TBSH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eNone (open-style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1756-OA8E is ideal for controlling AC-powered devices such as motor starters, relays, solenoids, and indicator lights. In a typical manufacturing line, this module can switch conveyor motors on and off, while its electronic fusing protects against overloads and short circuits. The module's fast response time ensures precise timing in high-speed packaging machinery. For process industries, the 1756-OA8E provides dependable control of valve actuators and alarm systems, reducing unplanned downtime.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eInstalling the 1756-OA8E is straightforward. Insert the module into any available slot of a 1756 chassis. Ensure the chassis backplane can supply the required 200 mA at 5.1 VDC and 250 mA at 24 VDC. Use a compatible removable terminal block (1756-TBNH or 1756-TBSH) for wiring. Connect the AC load to the appropriate output terminals, observing the group isolation boundaries. After wiring, power up the system and verify the module is recognized by the ControlLogix controller. Configure the module in RSLogix 5000 or Studio 5000 to match your application requirements.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eBecause the 1756-OA8E uses electronic fusing, there are no fuses to replace, which simplifies maintenance. However, periodic inspection of the terminal block connections is recommended to ensure tightness and prevent arcing. Keep the module's ambient temperature within the specified operating range (0 to 60 °C) and maintain relative humidity between 5% and 95% (non-condensing). The open-style enclosure requires protection from dust and debris; install the module in a clean, ventilated cabinet. With proper care, the 1756-OA8E provides long, reliable service.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1756-OA8E is part of the ControlLogix family, so it is fully compatible with all ControlLogix controllers, chassis, and communication modules. It can be used in both local and remote I\/O racks, allowing flexible system design. The module communicates with the controller via the backplane, and no additional network configuration is needed for standard operation. It works seamlessly with existing ControlLogix programs.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore ordering, verify that the 1756-OA8E meets your voltage and current requirements. For applications requiring higher current, consider using an external relay or contactor. Ensure you have the correct removable terminal block (1756-TBNH or 1756-TBSH) for your wiring needs. When purchasing, buy from a trusted supplier to guarantee genuine Allen-Bradley parts. PLC Source PRO offers authentic 1756-OA8E modules with competitive pricing and fast shipping.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44435263848547,"sku":"1756-OA8E","price":252.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1756-2WS_fb6e16b4-5221-4c69-aba3-c98edc4e70ac.jpg?v=1785788000","url":"https:\/\/www.plcsourcepro.com\/he\/products\/allen-bradley-1756-oa8e-industrial-automation-module-reliable","provider":"PLC Source PRO","version":"1.0","type":"link"}