Part Number: SR55UB
Extra-tall 55U cabinet houses, organizes and secures standard-depth 19 in. rack equipment in high-density server and IT networking areas.
- Maximum capacity: 3000 lb. (1363 kg) stationary, 2250 lb. (1022 kg) rolling load
- Doors and side panels lock securely to help prevent damage, tampering or theft
- Ships fully assembled for immediate deployment and equipment mounting
- Provides physical equipment and media security required for PCI DSS compliance
- 5-year limited warranty
Features
Standard-Depth 55U Server Cabinet Accommodates 19 in. Rack Equipment
This SmartRack® 55U rack enclosure is designed for network wiring closets, retail locations, classrooms, back offices and other areas with essential rack-mount IT equipment. Constructed from heavy-duty steel with a durable black powder-coated finish, the SR55UB has a maximum stationary load capacity of 3000 pounds (1363 kilograms) and a maximum rolling load capacity of 2250 pounds (1022 kilograms).
Exceptional 55U Height Lets You Make the Best Use of Valuable Floor Space
The extra height allows you to stack more equipment vertically and make optimal use of available floor space. This 55U rack cabinet has a footprint of 24 inches (600 millimeters) wide and 43 inches (1092 millimeters) deep.
Keeps Important Equipment Secure
The reversible front door, split rear doors and half-size side panels lock securely to help prevent damage, tampering or theft. The doors, side panels and top panel are designed for quick release, making it easy to access connected equipment and cabling with little effort. Convenient top access ports and an open bottom allow easy cable routing through the cabinet. The vented doors allow generous airflow (more than 65% open space) from front to rear to keep your equipment cool and functioning at their peak.
Easy Enclosure and Equipment Installation
This 55U server rack comes fully assembled for quick and easy deployment with pre-installed (and removable) casters that let you maneuver it over a level, smooth, stable surface and through a standard seven-foot (2.1-meter) doorway into position, where it can be stabilized by adjusting the levelers (also removable). Front and rear mounting rails accept standard rack equipment up to 37 inches (940 millimeters) deep. Toolless 0U mounting rails allow quick installation of up to four compatible PDUs and vertical cable managers.
Designed for Baying Multiple Enclosures in a Row
Built-in baying tabs allow the combination of two or more rack cabinets in a row. Center-to-center width can be set at 24 inches (600 millimeters) to match standard data center floor tiles.
Meets Payment Card Industry Standards
The SR55UB provides physical equipment and media security required for PCI DSS (Payment Card Industry Data Security Standard) compliance. This is essential for companies that process, store and/or transmit credit card information.
Package Includes
- SR55UB 55U Server Rack
- (4) Side panels
- (4) Side panel locks
- (2) Keys
- (50) M6 screws
- (50) M6 washers
- (50) M6 cage nuts
- Owner's manual
Specifications
OVERVIEW
| UPC Code | 037332260789 |
| Device Compatibility | Network Switch; PDU; Patch Panel; Router; Server; UPS |
| Rack Type | Enclosure |
PHYSICAL
| Color | Black |
| Rack Height | 55U |
| Rack Depth | Standard |
| Factory Preset Rack Depth (in.) | 27.75 |
| Maximum Device Depth (in.) | 37 |
| Minimum Device Depth (in.) | 4 |
| Shipping Dimensions (hwd / in.) | 105.50 x 25.75 x 45.50 |
| Shipping Weight (lbs.) | 430.50 |
| Unit Dimensions (hwd / in.) | 101.180 x 23.622 x 43.000 |
| Unit Weight (lbs.) | 375.050 |
| Weight Capacity - Rolling (lbs.) | 2250 |
| Weight Capacity - Stationary (lbs.) | 3000 |
| Number of Vertical Mounting Rails | 4 |
FEATURES & SPECIFICATIONS
| Grounding Details | Front and back door frames |
| Built-in Cable Management | Yes |
| Pre-Installed Casters | Yes |
STANDARDS & COMPLIANCE
| Product Certifications | UL 60950-1 |
| Product Compliance | RoHS; CE (Europe); UKCA |
WARRANTY & SUPPORT
| Product Warranty Period (Worldwide) | 5-year limited warranty |
Questions & Answers
It's important to ensure that the server rack is properly cooled, and cold airflow is sufficient to prevent overheating and equipment failure. If you plan on buying a portable or in-rack air conditioner, and need to know how much cooling power you need, here are some helpful tips.
The amount of heat that a server rack produces depends on the type of equipment in the rack, the number of devices installed, and the workload of the equipment. As a general rule, a fully loaded server rack can produce anywhere between 4 and 20 kilowatts of heat.
Further Reading: Server Racks Explained
You can approximate the heat produced by a server rack (and therefore its cooling needs) by calculating the total heat output of all the devices in the rack. Almost all the power consumed by IT devices is converted into heat, so a server that consumes 300W will have a thermal output of approximately 300W (multiply by 3.41 to convert watts to BTU/h).
If your rack includes a UPS, it's even easier. Use the power capacity of the UPS to estimate the cooling load. For example, if the UPS has an output capacity for 1,800 watts, assume the thermal output is 1,800 watts also.
Further Reading: Server Racks Explained
Accessories
Data Center & IT Rack Cooling
| Model Number | Description | |
|---|---|---|
 |
SRFAN3U | SmartRack 3U Fan Panel - 3-120V high-performance fans; 210 CFM; 5-15P plug |
 |
SRFANROOF | SmartRack Roof-Mounted Fan Panel - 6-120V high-performance fans; 630 CFM, 5-15P plug |
 |
SRXFAN3U | SmartRack 3U Fan Panel - 3 208-240V high-performance fans; 315 CFM; C14 inlet |
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SRXFANROOF | SmartRack Roof-Mounted Fan Panel - 6 208/240V high-performance fans; 420 CFM; C14 inlet |
Cable Management
| Model Number | Description | |
|---|---|---|
 |
SRCABLEDUCT1U | SmartRack 1U Horizontal Cable Manager - Finger duct with cover |
 |
SRCABLEDUCTVRT | SmartRack 6 ft. (1.83 m) Vertical Cable Manager - Double finger duct with cover & toolless mounting |
 |
SRCABLELADDER | SmartRack 10-ft. x 1-ft. (3 m x 0.3 m) Cable Ladder, 2 sections - SRCABLETRAY/SRLADDERATTACH needed |
 |
SRCABLERING1U | SmartRack 1U Horizontal Cable Manager - Flexible ring type |
 |
SRCABLERING2U | SmartRack 2U Horizontal Cable Manager - Flexible ring type |
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SRCABLERINGVRT | SmartRack 6 ft. (1.83 m) Vertical Cable Manager - Flexible ring type & toolless mounting |
 |
SRCABLETRAY | SmartRack Roof-Mounted Cable Trough - Provides cable routing and power/data cable segregation |
 |
SRCABLETRAYEXP | SmartRack Roof-Mounted Cable Trough Vertical Expansion Plates - Requires SRCABLETRAY |
Accessories
| Model Number | Description | |
|---|---|---|
 |
SR1UPANEL10 | SmartRack 1U Blanking Panel Kit - Toolless Mounting, 10 Panels, Black |
 |
SR1UPANEL200 | SmartRack 1U Blanking Panel Kit, Toolless-Mounting, 200 pieces |
 |
SR1UPANEL50 | SmartRack 1U Blanking Panel Kit, Toolless-Mounting, 50 pieces |
 |
SRBOLTDOWN | SmartRack Bolt-Down Kit - Secures stabilizing brackets or plates to facility floor |
 |
SRCAGENUT5MM | SmartRack Square Hole Hardware Kit with 50 M5 screws and washers |
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SRCAGENUTS | SmartRack Square Hole Hardware Kit with 50 M6 screws and washers |
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SRCAGENUTS1224 | SmartRack Square Hole Hardware Kit with 50 pcs 12-24 screws and washers |
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SRCASTERHDKIT | SmartRack Heavy-Duty Rolling Caster Kit, 4 pack |
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SRCOMBO | SmartRack Door Handles with Combination Lock with Bypass Key, 2-pack for Front and Rear Doors |
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SREXTENDER | SmartRack Rack Enclosure Extension Frame - Increases rack external & maximum mounting Deep |
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SRFILTER | SmartRack Enclosure Filter Kit |
 |
SRPAGODAROOF | SmartRack Drip Resistant Roof |
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SRSHELF2P | SmartRack 2U Cantilever Fixed Shelf (60 lbs / 27.2 kgs capacity; 18-in. / 457 mm Deep) |
 |
SRSHELF4PHD | SmartRack Heavy-Duty Fixed Shelf (250 lbs / 113.4 kgs capacity; 26 in/660 mm Deep) |
 |
SRSHELF4PKYBD | SmartRack Keyboard Shelf (25 lbs / 11.3 kgs capacity; 16 in / 406 mm Deep) |
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SRSHELF4PSL | SmartRack Standard Sliding Shelf (50 lbs / 22.7 kgs capacity; 28.3 in/719 mm Deep) |
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SRSHELF4PSLHD | SmartRack Heavy-Duty Sliding Shelf (200 lbs / 90.7 kgs capacity; 28.3 in/719 mm Deep) |
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SRSTABILIZE | SmartRack Anti-Tip Stabilizing Plate Kit - Provides extra stability for standalone enclosures |
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SRSWITCH | SmartRack Magnetic Door Switch Kit for front and rear doors; requires ENVIROSENSE, TLNETEM, E2MTHDI or E2MTDI |
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SRTHERMDUCT | SmartRack Thermal Duct Kit for SmartRack Enclosures |
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SRVRTBAR | SmartRack 42U Vertical Cable Management Bars |
 |
UPSHDEARKIT | Heavy-Duty 2-post Front Mounting Ear Kit |
Documents & Downloads
Documentation
Design Resources
Declarations of Conformity
Product Images
