The SR45UBEXPNDNR3 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 lb 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.

• 45U 4-Post SmartRack Premium Open Frame Rack (No Sides, Doors or Roof)
• 50 x M6 Cage Nuts
• 50 x M6 Screws
• Stabilizing Brackets

• Grounding lug: Front and Back door frames
• 4 Interior vertical posts with unthreaded square hole openings
• Preinstalled heavy duty 3" casters and leveling feet
• Open frame rack with no sides, doors or roof
• 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.
• Tool-less accessory mounting rails (2 rails per enclosure) include slots for quick installation of compatible PDUs and vertical cable managers. Mounting slots are arranged in an industry-standard pattern compatible with a wide variety of accessories. Each rail can accommodate two vertical PDUs or cable managers side-by-side (four items per enclosure).
• Maximum usable internal depth of 37 inches/94 cm (front to rear rail).
• Built in baying tabs allow premium open frame racks 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 premium open frame racks to be positioned on uneven floors. Levelers are removable.
• Convenient grounding system. All components are grounded to the premium open frame rack structure which includes multiple connections for facility ground.

• UL60950
• CE
• EIA/ECA-310-A
• IEC 60297-3-100
• DIN 41494
• NOM (Mexico)