{"product_id":"1756-a7-allen-bradley-controllogix-series-7-slot-chassis","title":"1756-A7 Allen-Bradley ControlLogix Series 7 Slot Chassis","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-A7\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-A7\u003c\/strong\u003e ControlLogix Chassis, operates as a dedicated hardware component for mounting ControlLogix modules and providing electrical backplane interconnection within ControlLogix system platforms.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe 1756-A7 is a 7-slot chassis assembly designed for ControlLogix controllers, communication modules, and I\/O modules. The chassis provides mechanical mounting support and distributes backplane power and communication paths between installed modules.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-A7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eControlLogix 7 Slot Chassis\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e21 x 37 x 17 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlots\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0-60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNonoperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5-95% noncondensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMaximum 5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current @ 1.2 VDC\u003c\/td\u003e\n\u003ctd\u003e1.5 A maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current @ 3.3 VDC\u003c\/td\u003e\n\u003ctd\u003e4 A \/ 4 A maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current @ 5.1 VDC\u003c\/td\u003e\n\u003ctd\u003e15 A \/ 6 A maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current @ 24 VDC\u003c\/td\u003e\n\u003ctd\u003e2.8 A \/ 2.8 A maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1756-A7 chassis provides a physical platform for ControlLogix module installation. Each slot connects to the internal backplane, allowing controller, communication, and I\/O modules to exchange data through the ControlLogix architecture.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Capacity\u003c\/td\u003e\n\u003ctd\u003e7 ControlLogix module positions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003ePanel mounting chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Function\u003c\/td\u003e\n\u003ctd\u003eModule power distribution and data communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Platform\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley ControlLogix system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Dissipation\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Position\u003c\/td\u003e\n\u003ctd\u003eHorizontal or vertical mounting according to system design requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP Deterministic Network Integration\u003c\/h3\u003e\n\u003cp\u003eWithin ControlLogix architectures, the 1756-A7 chassis supports module-level communication through the ControlLogix backplane bus. Installed communication modules can interface with EtherNet\/IP deterministic networks while maintaining coordinated data exchange between controllers, adapters, and field I\/O devices.\u003c\/p\u003e\n\u003cp\u003eThe chassis design supports I\/O density scaling by allowing multiple ControlLogix modules to operate within a single rack assembly. Proper module placement and power loading calculations are required according to the installed module combination.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003eThe standard shipment configuration includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1756-A7 ControlLogix 7 Slot Chassis\u003c\/li\u003e\n\u003cli\u003e1 x Factory chassis assembly\u003c\/li\u003e\n\u003cli\u003e1 x Product identification label set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional modules such as ControlLogix CPUs, communication interfaces, power supplies, and I\/O cards are installed separately according to system configuration.\u003c\/p\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch4\u003eMechanical Mounting\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the chassis on a rigid industrial panel surface.\u003c\/li\u003e\n\u003cli\u003eVerify sufficient clearance around the chassis for module insertion and maintenance access.\u003c\/li\u003e\n\u003cli\u003eSecure the chassis using appropriate mounting hardware according to the installation environment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eElectrical Connection\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm backplane power requirements before installing modules.\u003c\/li\u003e\n\u003cli\u003eCheck total module current consumption against chassis power supply capacity.\u003c\/li\u003e\n\u003cli\u003eMaintain proper grounding practices for the control panel enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eModule Installation\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInstall ControlLogix modules firmly into available chassis slots.\u003c\/li\u003e\n\u003cli\u003eEnsure module locking tabs are fully engaged.\u003c\/li\u003e\n\u003cli\u003eAvoid installing or removing modules while power conditions exceed manufacturer hot-swap limitations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat is the primary function of the 1756-A7 chassis?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1756-A7 provides mechanical mounting and electrical backplane connections for ControlLogix modules installed in a 7-slot rack configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHow many modules can be installed on the 1756-A7?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe chassis provides 7 available slots for compatible ControlLogix controller, communication, and I\/O modules.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the 1756-A7 include a power supply?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The chassis does not include a power supply. A compatible ControlLogix power supply is installed separately.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat backplane voltage levels are supported?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe chassis supports ControlLogix backplane current distribution at 1.2 VDC, 3.3 VDC, 5.1 VDC, and 24 VDC supply rails.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCan the 1756-A7 be used with EtherNet\/IP modules?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYes. EtherNet\/IP communication modules can be installed in the chassis as part of a ControlLogix network configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat operating temperature range is specified for this chassis?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe specified operating temperature range is 0-60 deg C under normal operating conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eIs the 1756-A7 compatible with ControlLogix I\/O modules?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYes. The chassis supports compatible ControlLogix I\/O modules installed according to system architecture requirements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the chassis support module replacement during operation?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eModule replacement capability depends on the specific ControlLogix module type and system configuration. Follow Allen-Bradley installation procedures before performing maintenance.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066411995309,"sku":"1756-A7","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1756-a7_2-2.jpg?v=1785930672","url":"https:\/\/www.maxwellplc.com\/products\/1756-a7-allen-bradley-controllogix-series-7-slot-chassis","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}