Tripp Lite 45U open frame server rack with adjustable mounting rails and integrated baying capabilities, shown in black finish with preinstalled casters

High-Capacity Open Frame Design for Scalable Data Center Solutions

The SR45UBEXPNDNR3 open frame rack exemplifies efficient data center infrastructure design with its robust construction and modular expansion capabilities. The frame features precision-engineered mounting rails with quarter-inch adjustability, enabling optimal equipment positioning and maximum space utilization. The integrated baying system allows seamless connection with additional racks, creating organized equipment rows that align perfectly with standard data center floor tiles. This 45U frame combines industrial-grade durability with intelligent design elements that streamline installation and maintenance. The tool-less mounting system accommodates up to four PDUs or cable managers, while the numbered rack spaces and depth index markers eliminate guesswork during equipment deployment. With a 3000-pound weight capacity and built-in leveling system, this rack delivers enterprise-grade stability for mission-critical hardware.

Technical Specifications

  • 45U height capacity supporting standard 19-inch rack equipment
  • Quarter-inch incremental rail adjustment from 4 to 37 inches
  • 3000 lb weight capacity with reinforced frame construction
  • Tool-less 0U mounting for up to four PDUs or cable managers

Applications

  • Data center expansion and equipment row creation
  • High-density server and network equipment deployment
  • Scalable infrastructure build-outs
  • Multi-rack system integration

Product details

General Information
Manufacturer

Tripp Lite by Eaton

Manufacturer Part Number

SR45UBEXPNDNR3

Brand Name

Tripp Lite

Product Line

SmartRack

Product Model

SR45UBEXPNDNR3

Product Name

45U 4-Post SmartRack Premium Open Frame Rack (No Sides, Doors or Roof)

Product Type

Rack Frame

Physical Characteristics
Product Color

Black

Units Per Pallet

1

Dynamic/Rolling Weight Capacity

3000 lb

Static/Stationary Weight Capacity

3000 lb

Height

83.8

Width

23.6

Depth

43

Weight (Approximate)

130 lb

Rack Height

45U

Rack Width

19

Miscellaneous
Package Contents

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

Additional Information

  • 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.

Certifications & Standards

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

Assembly Required

No

Environmentally Friendly

Yes

Environmental Certification

RoHS

Country of Origin

China

Warranty
Limited Warranty

5 Year

Included in the Box

  • icon_list|open frame rack|Open Frame Rack Main unit icon

    Open Frame Rack

  • icon_list|m6 cage nuts|M6 Cage Nuts Mounting hardware icon

    M6 Cage Nuts

  • icon_list|m6 screws|M6 Screws Mounting hardware icon

    M6 Screws

  • icon_list|stabilizing brackets|Stabilizing Brackets Hardware icon

    Stabilizing Brackets

FAQs

What are the basic specifications of the Tripp Lite SR45UBEXPNDNR3 rack?
The SR45UBEXPNDNR3 is a 45U 4-Post SmartRack Premium Open Frame Rack with a 19-inch standard width. It measures 83.8" in height, 23.6" in width, and 43" in depth. The rack has a weight capacity of 3000 lb for both static and dynamic loads, and weighs approximately 130 lb itself. It's designed as an expansion model without sides, doors, or roof, making it ideal for baying multiple racks together.
What is the mounting rail system like on this rack?
The rack features front and rear pairs of vertical rails with square mounting holes that are adjustable in 1/4-inch increments from 4 to 37 inches. It includes an easy-view depth index for consistent rail placement without requiring measurements. The rails support tool-less button-mount 0U installation and can accommodate up to four compatible PDUs and cable managers. Each rack space is numbered for easy reference.
What comes included with the SR45UBEXPNDNR3?
The package includes the 45U 4-Post SmartRack Premium Open Frame Rack (main frame), 50 M6 cage nuts, 50 M6 screws, and stabilizing brackets. The rack comes with preinstalled heavy-duty 3" casters and leveling feet. No assembly is required as the unit comes ready to use.
How is the grounding system implemented in this rack?
All components of the SR45UBEXPNDNR3 are grounded to the enclosure frame. The rack features front and rear threaded grounding points for connection to the facility earth ground. The grounding system includes multiple connections for facility ground, ensuring comprehensive electrical safety throughout the structure.
What are the mobility features of this rack?
The SR45UBEXPNDNR3 comes with heavy-duty 3" preinstalled casters for easy positioning and adjustable leveling feet for stability on uneven floors. The casters are designed for minor position adjustments rather than long-distance transport. The leveling feet can be extended or removed as needed to ensure proper stability once the rack is in position.

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