{"product_id":"allen-bradley-1746-a7-plc-mounting","title":"Allen-Bradley 1746-A7 SLC 500 7-Slot Modular Chassis","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-A7 is a robust 7-slot modular chassis specifically engineered for the SLC 500 programmable controller system. This chassis provides a reliable backplane for mounting the controller processor, power supply, and various I\/O or specialty modules. It is ideal for mid-sized automation applications where a compact footprint is required while maintaining sufficient capacity for system expansion and diverse module integration.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSeven-slot capacity for flexible I\/O and processor configuration.\u003c\/li\u003e\n\u003cli\u003eSlot 0 reserved for the SLC 500 processor or remote I\/O adapter.\u003c\/li\u003e\n\u003cli\u003eSupports local expansion by linking up to two additional chassis units.\u003c\/li\u003e\n\u003cli\u003eCompatible with 1746-C series interconnect cables for backplane communication.\u003c\/li\u003e\n\u003cli\u003eIntegrated backplane for high-speed data transfer between modules.\u003c\/li\u003e\n\u003cli\u003ePanel-mount design with four secure mounting tabs for vibration-resistant installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis chassis is a fundamental component for Allen-Bradley SLC 500 control systems, widely utilized in industrial manufacturing, process control, and machine automation environments. It serves as the physical backbone for distributed or standalone control architectures requiring scalable I\/O density.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\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 Series\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Count\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1V 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\u003e2.88 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003ePanel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95% (Non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.22 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the mounting surface is flat and capable of supporting the weight of the chassis and all installed modules.\u003c\/li\u003e\n\u003cli\u003eUse appropriate SEM or Phillips screws with star washers to secure the chassis via the four mounting tabs.\u003c\/li\u003e\n\u003cli\u003eAlways disconnect power from the chassis before installing or removing any modules to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance around the chassis to ensure proper airflow and cooling, adhering to the specified operating temperature range.\u003c\/li\u003e\n\u003cli\u003eWhen using multiple chassis, ensure the 1746-C series cables are securely seated to maintain backplane communication integrity.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the chassis to a low-impedance ground point to minimize EMI susceptibility.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCan I use this chassis with any SLC 500 processor?\u003c\/strong\u003e\u003cbr\u003eYes, the 1746-A7 is designed for the SLC 500 series and supports standard processors and remote I\/O adapters in the designated Slot 0.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many total slots are available for I\/O modules?\u003c\/strong\u003e\u003cbr\u003eThe chassis has 7 total slots; Slot 0 is dedicated to the processor or adapter, leaving 6 slots available for I\/O and specialty modules.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it possible to expand this system?\u003c\/strong\u003e\u003cbr\u003eYes, you can connect this chassis to up to two additional 1746 chassis using the 1746-C series interconnect cables.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44689035591768,"sku":"1746-A7","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_ef758ba3-a1d3-43ea-aada-d2b9809de8c0.jpg?v=1788240877","url":"https:\/\/www.industriaxplc.com\/products\/allen-bradley-1746-a7-plc-mounting","provider":"IndustriaX Limited","version":"1.0","type":"link"}