{"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, 4-slot chassis designed for the ControlLogix platform. This chassis provides the necessary backplane communication and power distribution for ControlLogix modules, including processors, I\/O modules, and communication adapters. It is engineered for industrial environments and supports horizontal mounting configurations.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour (4) available slots for ControlLogix modules.\u003c\/li\u003e\n\u003cli\u003eRobust backplane design supporting high-speed data exchange.\u003c\/li\u003e\n\u003cli\u003eDesigned for horizontal mounting in standard industrial enclosures.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard ControlLogix power supplies and modules.\u003c\/li\u003e\n\u003cli\u003eOpen-type enclosure rating for use in controlled environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-A4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Count\u003c\/td\u003e\n\u003ctd\u003e4\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\u003eBackplane Current (5V DC)\u003c\/td\u003e\n\u003ctd\u003e10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24V DC)\u003c\/td\u003e\n\u003ctd\u003e2.8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation (Max)\u003c\/td\u003e\n\u003ctd\u003e4 W\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, rigid surface within an appropriate industrial enclosure to protect against environmental contaminants.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance around the chassis to allow for proper airflow and heat dissipation.\u003c\/li\u003e\n\u003cli\u003eVerify that the backplane connectors are free of debris before inserting modules.\u003c\/li\u003e\n\u003cli\u003eAlways power down the system before installing or removing any ControlLogix modules to prevent electrical damage or unexpected system behavior.\u003c\/li\u003e\n\u003cli\u003eEnsure the chassis is properly grounded to the enclosure backplane or a common ground point to minimize EMI interference.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 1756-A4?\u003c\/h3\u003e\u003cp\u003eThe 1756-A4 serves as the physical mounting and electrical backplane for Allen-Bradley ControlLogix modules, allowing them to communicate with the processor and receive power.\u003c\/p\u003e\u003ch3\u003eCan this chassis be mounted vertically?\u003c\/h3\u003e\u003cp\u003eThe 1756-A4 is specifically designed for horizontal mounting. Refer to the official Allen-Bradley ControlLogix installation manual for specific thermal and orientation requirements if alternative mounting is considered.\u003c\/p\u003e\u003ch3\u003eAre there any specific power requirements for this chassis?\u003c\/h3\u003e\u003cp\u003eThe chassis itself does not consume power, but it distributes power from a ControlLogix power supply to the modules. It supports a backplane current of 10A at 5V DC and 2.8A at 24V DC.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51012478468348,"sku":"1756-A4","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_e07d0d23-e6ec-4254-8b20-d4f8621f7f7f.jpg?v=1787684858","url":"https:\/\/www.electronicplc.com\/products\/allen-bradley-1756-a4-4-slot-chassis","provider":"Electronic PLC","version":"1.0","type":"link"}