{"product_id":"allen-bradley-1756-a7k-7-slot-controllogix-chassis-kit","title":"Allen-Bradley 1756-A7K 7-Slot ControlLogix Chassis Kit","description":"\u003ch3\u003eProduct Summary\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-A7K\u003c\/strong\u003e is a \u003cstrong\u003e7-Slot ControlLogix Chassis Kit\u003c\/strong\u003e by Rockwell Automation. It provides a rugged backplane for mounting ControlLogix I\/O modules, communication modules, and controllers with expanded capacity over the 4-slot version. The \u003cstrong\u003e-K suffix\u003c\/strong\u003e denotes a kit configuration that includes the chassis, power supply, and mounting hardware for quick installation.\u003c\/p\u003e\n\n\u003ch3\u003eCore Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e 1756-A7K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 7-Slot ControlLogix Chassis Kit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlots:\u003c\/strong\u003e 7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBackplane Current Capacity:\u003c\/strong\u003e 10 A at 5.1 VDC; 4 A at 24 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBackplane Power:\u003c\/strong\u003e 1.2 V backplane signaling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Panel or DIN rail (included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 171 mm (H) × 254 mm (W) × 118 mm (D)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.5 kg (3.3 lbs)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Allen-Bradley by Rockwell Automation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical \u0026amp; Functional Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBackplane Design:\u003c\/strong\u003e High-speed parallel bus for deterministic I\/O and controller communication\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlot Independence:\u003c\/strong\u003e Any module can be installed in any slot — no dedicated slots required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeying System:\u003c\/strong\u003e Electronic keying prevents insertion of incompatible modules\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStatus Indicators:\u003c\/strong\u003e Chassis OK LED for backplane health monitoring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Integrated chassis ground lug for safety and noise immunity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem Integration \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Controllers:\u003c\/strong\u003e 1756-L6x, 1756-L7x, 1756-L8x ControlLogix and GuardLogix controllers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible I\/O:\u003c\/strong\u003e All 1756-series digital, analog, specialty, and safety I\/O modules\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Power Supplies:\u003c\/strong\u003e 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75, 1756-PC75, 1756-PH75\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication Modules:\u003c\/strong\u003e 1756-EN2T, 1756-EN3TR, 1756-CN2R, 1756-DNB, 1756-EWEB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRedundancy:\u003c\/strong\u003e Supports 1756-RM2 redundancy modules for paired chassis configurations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelated Parts:\u003c\/strong\u003e 1756-A4K (4-slot kit), 1756-A10K (10-slot kit), 1756-A13K (13-slot kit), 1756-A17K (17-slot kit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Operational Limits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 60°C (32°F to 140°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40°C to +85°C (-40°F to 185°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5% to 95% RH, non-condensing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 2G, 10 to 500 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShock:\u003c\/strong\u003e 30G, 11 ms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApprovals:\u003c\/strong\u003e CE, UL, CUL, ATEX (Zone 2), Marine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cp\u003eWidely deployed in medium-scale control systems, process skids, machine control centers, safety systems, and distributed control architectures where moderate I\/O expansion and full ControlLogix compatibility are required.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat is included in the 1756-A7K kit?\u003c\/h4\u003e\n\u003cp\u003eThe -K suffix indicates a kit that typically includes the 7-slot chassis, mounting hardware, and sometimes a power supply. Verify exact kit contents with your supplier as configurations may vary.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the difference between 1756-A7 and 1756-A7K?\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-A7\u003c\/strong\u003e is the chassis only. The \u003cstrong\u003e1756-A7K\u003c\/strong\u003e is a kit configuration that includes additional mounting accessories and may include a power supply.\u003c\/p\u003e\n\n\u003ch4\u003eCan I use any slot for the controller?\u003c\/h4\u003e\n\u003cp\u003eYes — ControlLogix chassis support \u003cstrong\u003eany-slot placement\u003c\/strong\u003e. The controller or I\/O module can be installed in any of the 7 slots.\u003c\/p\u003e\n\n\u003ch4\u003eWhat power supply do I need?\u003c\/h4\u003e\n\u003cp\u003eStandard AC power supplies: 1756-PA72 (120\/240VAC) or 1756-PA75 (120\/240VAC, redundant-capable). DC power supplies: 1756-PB72 (24VDC) or 1756-PB75 (24VDC, redundant-capable).\u003c\/p\u003e\n\n\u003ch4\u003eWhat are the related part numbers?\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1756-A4K — 4-slot chassis kit\u003c\/li\u003e\n  \u003cli\u003e1756-A7K — 7-slot chassis kit (this part)\u003c\/li\u003e\n  \u003cli\u003e1756-A10K — 10-slot chassis kit\u003c\/li\u003e\n  \u003cli\u003e1756-A13K — 13-slot chassis kit\u003c\/li\u003e\n  \u003cli\u003e1756-A17K — 17-slot chassis kit\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53679419490488,"sku":"1756-A7K","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-A7_1.png?v=1782895443","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1756-a7k-7-slot-controllogix-chassis-kit","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}