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Item#: 9SIA3NU3M01056

Tripp Lite SR45UB 45U Rack Enclosure Server Cabinet Doors & Sides 3000lb Capacity

  • Wall Mount Cabinet

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews


Tripp Lite's SR45UB is the ideal solution for secure, high-density server and networking applications in IT environments. This premium SmartRack™ Enclosure Cabinet is packed with features designed to simplify rack equipment installations and rack equipment maintenance: top-panel cable routing ports, perforated doors to promote efficient airflow, adjustable mounting rails, toolless vertical PDU mounting and more. And as part of the SmartRack family, the SR45UB is compatible with Tripp Lite's extensive range of rackmount accessories, enabling you to customize your solution to meet any requirement. The SR45UB ships fully assembled for quick installation and come with a 5-year warranty.

Optimized for Data Center Applications


SR45UB Feature Focus
Preinstalled Casters and Leveling Feet
Secure Equipment Access

Optimized for Data Center Applications

The SR45UB is optimized for data center and other high-density IT applications. Its massive front-to rear-ventilation capacity (door perforation pattern providing 65+% open space) meets or exceeds server manufacturer requirements. The SR45UB offers full compatibility with a wide range of airflow optimization accessories as well as cable management accessories. It features integrated baying tabs that make it easy to combine multiple enclosures in rows for data center applications. This enclosure is also 100% compatible with today's state-of-the-art hot-aisle/cold-aisle data center configurations.

Simple Equipment Installation

The SR45UB is compatible with all standard 19-inch rack equipment. It features front and rear pairs of vertical rails with square mounting holes. The rails are adjustable in quarter-inch increments to accommodate equipment depths from 4 to 42 inches. Adjustment is quick and convenient—simply unscrews the rails, slide them to the desired depth and restore the screws. An easy-view depth index ensures consistent rail placement without requiring time-consuming measurements. The rails feature square mounting holes and are capable of supporting up to 3000 lbs. of equipment with included installation hardware. Each rack space within the enclosure is numbered for ready reference.

Tool-less Vertical Mounting Rails

The SR45UB features two adjustable vertical mounting rails that support tool-less button-mount 0U installation of compatible PDUs and cable managers. Each rail can accommodate two vertical PDUs or cable managers side by side, for a total of four units per enclosure. These vertical mounting rails make it easier to route power and cabling to installed rack equipment. They also reduce cord and cable clutter that could block airflow through the enclosure.

Secure Equipment Access

The SR45UB is designed to provide a safe, secure installation solution for mission-critical rackmount equipment. It features locking, reversible, removable front and rear doors, perforated to promote efficient airflow, and locking, removable side panels. It is also compliant with strict Payment Card Industry Data Security Standard (PCI) regulations, ensuring the physical security of equipment that processes, stores and transmits credit card data. Locking doors and side panels prevent unauthorized access to installed equipment while making it easy for IT personnel to perform inspections, maintenance and equipment replacement. The side panels are half size (two per side) for ease of removal and reinstallation. The split rear door design reduces clearance requirements for service access, allowing the enclosure to be placed closer to a wall.

Vented Top Panel with Cable Ports

The top panel of the SR45UB is furnished with vents designed to help remove warm air from the enclosure and draw in cool air by convection. It also supports installation of standard user-supplied case fans. The top panel is provided with ports for cable routing, and is designed for quick, tool-less removal with no need to disconnect cables. The SR45UB is designed with an open bottom to facilitate cable access.

Integral Grounding System

All components of the SR45UB 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.

Preinstalled Casters and Leveling Feet

To simplify deployment, the SR45UB comes with preinstalled casters and leveling feet. The casters enable the SR45UB to be easily maneuvered into the desired location, where it can then be secured in place by adjusting the levelers. The SR45UB has a rolling load capacity of 2250 lbs., enabling rack equipment to be installed in the enclosure prior to final deployment. Note: the casters are intended for minor position adjustments within the final installation area only and are not designed for moving the enclosure over long distances.

Peace of Mind

The SR45UB comes with a 5-year product warranty and a rapid-response repair/replacement policy that's unmatched in the industry.

Technical Specifications

  • Rack spaces: 45
  • Load capacity (rolling): 2250 lbs.
  • Load capacity (stationary): 3000 lbs.
  • Mounting depth: 4 to 37 in.
  • Mounting holes: Square (mounting hardware included)
  • Doors: Front/rear (lockable/removable/reversible)
  • Side panels: 2 per side (lockable/removable)
  • Top panel: Vented/removable
  • Cable ports: Top panel (removable covers)
  • Height: 90.3 in.
  • Width: 26 in.
  • Depth: 45 in.
  • Weight: 307 lbs.
  • Material of construction: Steel
  • Warranty: 5 years

What's in the Box

  • SR45UB SmartRack™ Enclosure Cabinet
  • 50 x M6 Cage Nuts
  • 50 x M6 Screws
  • 50 x PVC Cup Washers
  • 4 x Side Panels
  • 4 x Side Panel Locks
  • 4 x Door and Side Panel Keys
What’s in the Box
Tripp Lite
Standard Rack Enclosures

Rack Space 42U 45U 48U
Weight Capacity 3000 lbs. 3000 lbs. 3000 lbs.
Doors and Side Panels Yes Yes Yes
Warranty 5-year 5-year 5-year

Learn more about the Tripp Lite SR45UB


Tripp Lite


Wall Mount Cabinet
Rack Units
Form Factor:19" 45U


Package Contents:
45U SmartRack Premium Enclosure (Includes Doors and Side Panels)
4 x Side Panels
4 x Side Panel Locks
50 x M6 Screws
50 x M6 Cage Nuts
50 x M6 Washers
2 x Door and Side Panel Keys
Owner's Manual
Stabilizer Plate
Mounting Hardware Kit
Baying Hardware Kit

Dimension & Weight

Unit Weight
307.00 lb
Warranty, Returns, And Additional Information

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Home > 
Computer Systems > 
Servers & Workstations > 
Server Racks / Cabinets > 
Tripp Lite > 
Item#: 9SIA3NU3M01056
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