{"product_id":"allen-bradley-1756-a4-controllogix-plc-chassis","title":"Allen-Bradley 1756-A4 ControlLogix PLC Chassis","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-A4 ControlLogix chassis is a four-slot backplane enclosure in the ControlLogix family designed to host 1756-series I\/O and control modules. It provides four slots for mounting modules and relies on a separate ControlLogix power supply to feed the backplane; the chassis itself does not include a power supply. An electronic keying option is available to ensure module compatibility. External dimensions are approximately 20 in by 20 in by 8 in, enabling compact installation in standard control panels or equipment enclosures. As part of Rockwell Automation's ControlLogix ecosystem, this chassis supports a modular approach to automation, allowing digital I\/O, analog I\/O, and communications modules to share a common backplane and communicate with the ControlLogix CPU across the four slots. \u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658952081710,"sku":null,"price":940.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_effe70dd-adb5-4fb2-b641-8128df5e0721.jpg?v=1769525864","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-a4-controllogix-plc-chassis","provider":"PLG Automation ","version":"1.0","type":"link"}