{"product_id":"allen-bradley-1746-a7-slc-500-7-slot-rack-chassis","title":"Allen-Bradley 1746-A7 SLC 500 7-Slot Rack Chassis","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1746-A7 SLC 500 7-Slot Rack Chassis is the seven-slot modular backplane that forms the core of an SLC 500 control system, designed to hold a CPU, discrete and analog I\/O, and expansion cards in a compact enclosure. It can interconnect with multiple chassis through expansion cables such as the 1746-C9 to scale a project across several racks. The chassis is part of the SLC 500 modular family and is specified to accommodate seven slots, with typical dimensions around 171 mm in height and 145 mm in depth. It is engineered for environmental operation from 0 to 60 C and up to 95% relative humidity (non-condensing), making it suitable for standard industrial environments. The 1746-A7 supports common AB I\/O modules in the SLC-500 ecosystem, including the 1746-IA16 family of input modules, and can host related communication and scanner cards such as the 1747-L524 where applicable, enabling compact, scalable configurations for legacy automation tasks. This chassis is ideal for retrofits, service replacements, or rebuilding legacy lines where AB SLC-500 hardware remains in service, providing a familiar, module-based approach to configuration that preserves existing wiring harnesses and control logic while allowing targeted expansion or replacement of individual modules.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657313091886,"sku":null,"price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_a9cd8644-2b07-4c94-bd3d-ef77d68ce998.jpg?v=1769467753","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1746-a7-slc-500-7-slot-rack-chassis","provider":"PLG Automation ","version":"1.0","type":"link"}