Part Number: SR48UBEXPNDNR3
- 48U SmartRack Premium open frame rack (no sides, doors or roof)
- 4 interior vertical posts with unthreaded square hole openings
- Standard 24" (600mm) width and 42" (1050mm) depth for optimizing floor space
- Ships fully assembled
- 3000 lbs (1360.8 kgs) stationary / 3000 lbs (1360.8 kgs) rolling load capacity
- Preinstalled heavy duty 3" casters and leveling feet
- Includes 50 pieces of M6 cage nuts and 50 pieces of M6 screws (equipment mounting hardware)
- 5-year limited warranty
Overview
This SmartRack® 48U Standard-Depth 4-Post Premium Open Frame Rack 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 SR48UBEXPNDNR3 houses 3,000 pounds (1360.8 kilograms) of standard 19-inch rack equipment in 48U. The front and rear pairs of vertical rails have square mounting holes that are adjustable in quarter-inch increments from four 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 SR48UBEXPNDNR3 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 SR48UBEXPNDNR3 comes with heavy-duty 3-inch 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.
Features
- Open frame rack with no sides, doors or roof
- Ships fully assembled for rapid deployment and roll into place on 3" pre-installed casters (casters are removable)
- 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).
- Mounting hardware of 50 pieces of M6 cage nuts and 50 pieces of M6 screws included
- Textured powder coat finish for tough resistance to environmental concerns such as deployment in warehouses.
- Maximum usable internal depth of 37 inches (front to rear rail).
- Weight ratings of 3000 lbs (1360.8 kgs) stationary and 3000 lbs (1360.8 kgs) rolling.
- 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.
- Included stabilizing brackets are used for shipment and can be reattached at the bottom of the premium open frame rack on the inside or outside of the rack.
- Compatibility with all cable management accessories.
Package Includes
- SmartRack 48U Standard-Depth 4-Post Premium Open Frame Rack
- Mounting Hardware
- Owner's Manual
Specifications
OVERVIEW
| UPC Code | 037332178978 |
| Device Compatibility | Patch Panel; Network Switch; UPS; Server |
| Rack Type | Open-Frame |
PHYSICAL
| Color | Black |
| Rack Height | 48U |
| Rack Depth | Standard |
| Maximum Device Depth (in.) | 37 |
| Minimum Device Depth (in.) | 4 |
| Shipping Dimensions (hwd / in.) | 95.00 x 26.00 x 45.00 |
| Shipping Weight (lbs.) | 213.00 |
| Unit Dimensions (hwd / in.) | 89.000 x 23.630 x 43.000 |
| Unit Weight (lbs.) | 163 |
| Weight Capacity - Rolling (lbs.) | 3000 |
| Weight Capacity - Stationary (lbs.) | 3000 |
| Number of Vertical Mounting Rails | 4 |
FEATURES & SPECIFICATIONS
| Grounding Details | Front and Back door frames |
| 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
Accessories
Data Center & IT Rack Cooling
| Model Number | Description | |
|---|---|---|
 |
SRFAN3U | SmartRack 3U Fan Panel - 3-120V high-performance fans; 210 CFM; 5-15P plug |
 |
SRXFAN3U | SmartRack 3U Fan Panel - 3 208-240V high-performance fans; 315 CFM; C14 inlet |
Cable Management
| Model Number | Description | |
|---|---|---|
 |
SRCABLEDUCT1U | SmartRack 1U Horizontal Cable Manager - Finger duct with cover |
 |
SRCABLEDUCT1UHD | SmartRack 1U High Capacity Horizontal Cable Manager - Finger duct with dual-hinge cover |
 |
SRCABLEDUCT2UHD | SmartRack 2U High Capacity Horizontal Cable Manager - Finger duct with dual-hinge cover |
 |
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 |
 |
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 | |
|---|---|---|
 |
4POSTRAILKIT1U | SmartRack 4-Post 1U Universal Adjustable Rack-Mount Shelf Kit |
 |
SR1UPANEL10 | SmartRack 1U Blanking Panel Kit - Toolless Mounting, 10 Panels, Black |
 |
SR1UPANEL50 | SmartRack 1U Blanking Panel Kit, Toolless-Mounting, 50 pieces |
 |
SR48SIDE | SmartRack Side Panel with Key-Locking Latches for 48U Server Rack Cabinet, 1 Panel |
 |
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 |
 |
SRSHELF2P | SmartRack 2U Cantilever Fixed Shelf (60 lbs / 27.2 kgs capacity; 18-in. / 457 mm Deep) |
 |
SRSHELF2P1U | SmartRack 1U Cantilever Fixed Shelf (40 lbs / 18.1 kgs capacity; 12-in. / 305 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) |
 |
SRSHELF4PSLHD | SmartRack Heavy-Duty Sliding Shelf (200 lbs / 90.7 kgs capacity; 28.3 in/719 mm Deep) |
 |
SRSTABILIZE | SmartRack Anti-Tip Stabilizing Plate Kit - Provides extra stability for standalone enclosures |
 |
UPSHDEARKIT | Heavy-Duty 2-post Front Mounting Ear Kit |
Documents & Downloads
Documentation
Design Resources
Product Literature
Declarations of Conformity
Useful Web Pages
Product Images
