The SR25UBEXP is an expansion model used when several cabinets are bayed together. It has doors and a roof but no side panels. Its integrated baying tabs make it easy to combine multiple enclosures in rows fro data center application. The SR25UBEXP is also compatible with hot aisle/cold aisle configurations.

The SR25UBEXP houses 3000lbs of standard 19-inch rack equipment in 25U. Offers vendor-neutral square hole/cage nut mounting for guaranteed compatibility with all EIA-310-E compliant 19" equipment. Its front and rear pairs of vertical rails 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. Two of these adjustable vertical mounting rails support toolless button-mount 0U installation of up to four compatible PDUs and cable managers. This feature makes it easier to route cabling to rack equipment and reduces cord clutter.

The top panel of the SR25UBEXP is vented to help remove warm air from the enclosure and draw in cool air by convection. The top panel includes ports for cable routing, and can be quickly removed without tools. To facilitate cable access, the SR25UBEXP is open-bottom.

All components of the SR25UBEXP are grounded to the enclosure frame. Front and rear threaded grounding points are provided for connection to the facility earth ground. The removable front and rear doors feature quick-release ground wires.

To simplify deployment, the SR25UBEXP comes with 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.

• 25U SmartRack Premium Enclosure (No Side Panels Included)
• 2 x Accessory Mounting Rails
• 50 x M6 Cage Nuts
• 50 x M6 Screws
• Stabilizing Brackets
• Keys
• Owner's Manual

• Grounding lug: Front and Back door frames
• Front and rear sets of equipment mounting rails adjust in 1/4" increments. Adjustment is quick and convenient. The easy-view depth index ensures consistent rail placement without requiring time-consuming measurements.
• Textured powder coat finish for tough resistance to environmental concerns such as deployment in warehouses.
• Massive front to rear ventilation capacity. 65+% open space in door perforation pattern meets or exceeds server manufacturer requirements.
• Maximum usable internal depth of 37 inches (front to rear rail).
• Built in baying tabs allow enclosures to be combined securely in rows. Center-to-center width can be set at 600mm or 24" to match standard data center floor tiles.
• Leveling feet extend to allow enclosure to be positioned on uneven floors. Levelers are removable.
• Compact design allows the enclosure to roll through standard height commercial doorways.
• Convenient grounding system. All components are grounded to the enclosure frame which includes multiple connections for facility ground. Front and rear doors include quick-release ground wires.
• Open bottom for cable access.
• Top panel has generous cable access holes. Panel can be removed toollessly in seconds without having to disconnect cables first.
• Compatibility with airflow optimization accessories as well as cable management accessories.
• 4 Interior vertical posts with unthreaded square hole openings
• Massive front to rear ventilation capacity
• Rolls through standard 7 foot doorway