Tripp Lite SmartRack 4-Post Rack-Mount Installation Kit for Select UPS Systems, Side Mount

The Tripp Lite 4POSTRAILSM is a SmartRack 4-Post Rack-Mount Installation Kit that lets you secure a UPS or other heavy power or networking device in an EIA-standard four-post rack. Two L brackets attach along the outer edges of the rack’s vertical rails, forming a stable shelf that supports equipment weighing up to 250 lbs while leaving the front and rear mounting holes free for additional gear.

With a depth range of 16.5 to 21.5 inches, the kit fits many common rack cabinets in server rooms, network closets, branch offices, and edge locations. It holds a 17.5-inch-wide rectangular chassis, making it well suited for Tripp Lite UPS systems as well as compatible power conditioners, battery packs, or networking switches that share the same width.

Installation is straightforward: the included square-hole hardware eliminates the need for extra fasteners, and the side-mount design means you can slide the equipment into place without disturbing neighboring devices. Once in position, the brackets keep the load evenly distributed, which helps protect both the rack and the equipment from strain during maintenance or relocation.

Whether you are upgrading backup power for a branch office, building a compact data center, or organizing a multimedia rack in a studio, this kit provides a practical way to add substantial weight capacity without sacrificing rack space or flexibility.

• Supports equipment up to 250 lbs (113.4 kg)
• Fits four-post racks with 16.5 to 21.5 inch mounting depth
• Keeps front and rear mounting holes open for additional devices
• Accommodates 17.5-inch-wide UPS systems and similar equipment
• Includes square-hole rack-attachment hardware for quick installation