{"product_id":"high-current-7-slot-digital-chassis-1756-a7-controllogix","title":"High-Current 7-Slot Digital Chassis | 1756-A7 ControlLogix","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1756-A7 establishes the physical and electrical foundation for modular ControlLogix automation assemblies. This 7-slot standard chassis provides the high-speed data backbone and integrated power routing paths necessary to link central processors, network communication bridges, and local or remote I\/O modules together into a unified control system. It provides high-speed communication synchronization across the backplane to handle advanced industrial applications like process control, high-speed motion, and machine safety. To guarantee full hardware longevity and complete system safety, this offering provides only 100% brand new, original factory-sealed Series B chassis equipment.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley \/ Rockwell Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCatalog Model Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-A7\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Series\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eControlLogix 1756 System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStructural Design\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSeries B Standard Configuration\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTotal Available Slots\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7 Module Slots\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBackplane Current Capacity 5.1V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15 Amperes Max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBackplane Current Capacity 24V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 Amperes Max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBackplane Current Capacity 3.3V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Amperes Max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBackplane Current Capacity 1.2V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 Amperes Max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStructural Envelope Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOpen Style Equipment\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDedicated Power Supply Support\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLinks with 1756-PA, 1756-PB, 1756-PA72, and 1756-PB75\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Mounting Layout\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePanel Mount or Standard Rack Mount\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Anchors\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 Top Mounting Tabs and 2 Bottom Mounting Tabs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 60 degrees Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePermissible Ambient Humidity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 percent to 95 percent non-condensing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePhysical Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e267 x 140 x 147 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRegulatory Compliance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUL, CE, CSA, Class I Division 2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThis standard chassis resolves high-density power bottlenecks in complex control panels by delivering up to 15 Amperes of direct current across its 5.1V backplane traces. This high power threshold allows engineers to populate all 7 slots with power-hungry components, including multi-axis motion controllers and industrial Ethernet bridges, without encountering voltage sags or requiring auxiliary interposing power taps. The open-style panel mounting design features 2 top and 2 bottom rigid mounting tabs, securing the heavy modular assembly against severe industrial forces and heavy machinery vibrations inside motor control centers.\u003c\/p\u003e\n\u003cp\u003eThe high-speed communication backplane routes deterministic data packets smoothly between adjacent slots, bypassing the latency limits associated with external copper cables. This internal routing structure isolates the data bus from ambient high-frequency electromagnetic interference (EMI) radiating from nearby variable frequency drives (VFDs) and heavy manufacturing machinery. System builders install the compatible power supply module (such as the 1756-PA72 or 1756-PB75) directly onto the left side of the chassis frame, minimizing cabinet space consumption and establishing a tool-free electrical connection to the backplane power rails.\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan you mount the 1756-A7 chassis inside an unventilated outdoor control box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This chassis carries an open-style enclosure rating and generates internal thermal energy when fully loaded with active PLC modules. To meet safety and environmental compliance guidelines, you must install the chassis inside a protected industrial control cabinet that maintains ambient operating temperatures between 0 and 60 degrees Celsius with non-condensing humidity levels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this 7-slot chassis require a specific slot allocation for the primary ControlLogix CPU?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The ControlLogix architecture utilizes a completely flexible, slot-independent design philosophy. You can insert the primary programmable controller, communication modules, or I\/O cards into any of the 7 available slots. This layout flexibility allows system designers to optimize their internal wire routing and panel spacing paths based on specific site blueprints.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat options do you have if your field application outgrows the 7-slot framework?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe modular platform allows for simple scaling and expansion. You can upgrade the local layout to a larger hardware footprint by choosing an alternative model, such as the 1756-A10 (10 slots), 1756-A13 (13 slots), or 1756-A17 (17 slots) chassis. Alternatively, you can use a ControlLogix network bridge module in one of the existing slots to connect this local rack to separate, remote I\/O chassis configurations over a distributed EtherNet\/IP network loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43388861251674,"sku":"1756-A7","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/69_6ab24f96-a26f-4765-bf16-786acb77f9a5.jpg?v=1779085642","url":"https:\/\/www.spareoil.com\/products\/high-current-7-slot-digital-chassis-1756-a7-controllogix","provider":"SpareOil Automation","version":"1.0","type":"link"}