• 42U premium open frame rack does not come with sides, doors or roof
• 4 interior vertical posts with unthreaded square hole openings
• Standard 24 in. (600 mm) width and 42 in. (1050 mm) depth for optimizing floor space
• Ships fully assembled for immediate deployment
• 3000 lbs (1360.8 kgs) stationary and rolling load capacity
• Rolls through standard 7-ft. (2.13 m) doorway on pre-installed 3 in. casters
• Comes with equipment mounting hardware (M6 cage nuts and M6 screws)

This SmartRack 45U Standard-Depth 4-Post Premium Open Frame Rack is an expansion model with no sides, doors or roof. An expansion model is useful when baying together multiple enclosures. Its integrated baying tabs make it easy to combine multiple enclosures in rows for data center applications.The SR45UBEXPNDNR3 houses 3000 lbs (1360.8 kgs) of standard 19-inch rack equipment in 45U. It is an expansion model that comes without sides, doors or roof. The front and rear pairs of vertical rails have square mounting holes that are adjustable in quarter-inch increments from 4 to 37 inches. Adjustment is quick and an easy-view depth index ensures consistent rail placement without requiring time-consuming measurements. Each rack space within the enclosure is numbered for ready reference and supports tool-less button-mount 0U installation of up to four compatible PDUs and cable managers.All components of the SR45UBEXPNDNR3 are grounded to the enclosure frame. Front and rear threaded grounding points are provided for connection to the facility earth ground.To simplify deployment, the SR45UBEXPNDNR3 comes with heavy duty 3" preinstalled casters that enable it to be easily maneuvered into the desired location, where it can be secured by adjusting the preinstalled levelers. Note: the casters are intended for minor position adjustments and are not designed for moving the enclosure over long distances.The SR45UBEXPNDNR3 comes with a 5-year product warranty. As part of the SmartRack family, the SR45UBEXPNDNR3 is compatible with Tripp Lite's extensive range of rackmount accessories, enabling you to customize your solution to meet any requirement.

■ Ships fully assembled for immediate deployment
■ Rolls into place on heavy-duty 3-inch pre-installed (and removable) casters
■ Front/rear mounting rails adjust quickly and conveniently in 1/4-inch increments
■ Easy-view depth index ensures consistent rail placement without requiring time-consuming measurements
■ Toolless accessory mounting rails include slots for quick installation of compatible PDUs and vertical cable managers
■ Each rail can accommodate two vertical PDUs or cable managers side-by-side (four items per enclosure).
■ Includes mounting hardware: 50 M6 screws and 50 M6 cage nuts
■ Textured powder-coat finish for tough resistance to environmental concerns, including deployment in warehouses.
■ Maximum usable internal depth of 37 in./94 cm (front to rear rail)
■ Weight ratings of 3000 lbs (1360.8 kgs). both stationary and rolling
■ Built-in baying tabs allow premium open frame racks to be combined securely in rows with width set center to center at 24 in. or 600 mm to match standard data center floor tiles
■ Heavy-duty leveling feet allow even positioning on uneven floors
■ Rolls easily through standard commercial doorways
■ All components are grounded to the premium open frame rack structure, which includes multiple connections for facility ground
■ Open top, front, sides and bottom for cable access
■ Included stabilizing brackets used for shipment and can be reattached on the inside or outside of the rack