{"product_id":"allen-bradley-1756-a4-4-slot-chassis","title":"Allen-Bradley 1756-A4 ControlLogix 4-Slot Chassis","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1756-A4 is a compact, high-performance chassis designed for use within the ControlLogix automation system. This 4-slot backplane provides the necessary electrical and mechanical infrastructure to house and power ControlLogix modules, including processors, I\/O modules, and communication adapters. Engineered for industrial environments, it ensures reliable communication and power distribution across the backplane.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupports up to four ControlLogix modules in a single chassis.\u003c\/li\u003e\n\u003cli\u003eOptimized for horizontal mounting configurations.\u003c\/li\u003e\n\u003cli\u003eRobust backplane design supporting 5V DC and 24V DC current requirements.\u003c\/li\u003e\n\u003cli\u003eOpen-style enclosure suitable for standard industrial cabinets.\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration with the broader ControlLogix platform.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog Number\u003c\/td\u003e\n\u003ctd\u003e1756-A4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Slots\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V DC)\u003c\/td\u003e\n\u003ctd\u003e10 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24V DC)\u003c\/td\u003e\n\u003ctd\u003e2.8 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation (Max)\u003c\/td\u003e\n\u003ctd\u003e4 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eHorizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the chassis is mounted on a flat, stable surface within a suitable industrial enclosure to protect against environmental contaminants.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance around the chassis for ventilation to prevent heat buildup, respecting the 4 Watt maximum power dissipation rating.\u003c\/li\u003e\n\u003cli\u003eAlways power down the system before installing or removing any modules from the chassis slots to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eVerify that all modules are properly seated and secured using the integrated module locking mechanisms.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the chassis to the system common to minimize EMI and protect against electrical transients.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCan the 1756-A4 be mounted vertically?\u003c\/strong\u003e\u003cbr\u003eThe 1756-A4 is primarily designed for horizontal mounting. Consult the official Allen-Bradley ControlLogix installation manuals for specific thermal derating requirements if considering alternative orientations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this chassis include a power supply?\u003c\/strong\u003e\u003cbr\u003eNo, the 1756-A4 is a backplane chassis only. A compatible ControlLogix power supply must be installed separately to provide power to the backplane.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44745303490648,"sku":"1756-A4","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_e078eff0-8e6f-4203-85dd-0025808d4aa5.jpg?v=1788940359","url":"https:\/\/www.industriaxplc.com\/products\/allen-bradley-1756-a4-4-slot-chassis","provider":"IndustriaX Limited","version":"1.0","type":"link"}