Part Number: SR42UBEXPND
- 42U premium open frame rack includes no sides or doors
- 4 interior vertical posts with unthreaded square hole openings
- Standard 24 in. (600 mm) width and 42 in. (1050 mm) depth for optimizing floor space
- Ships fully assembled for use right away
- 3500 lbs (1588 kgs) stationary and 2250 lbs (1020.6 kgs) rolling load capacity
- Preinstalled heavy-duty 3 in. casters and leveling feet
- Designed to roll through a standard 7-ft. (2.13 m) doorway
- Includes 50 M6 cage nuts and 50 M6 screws for mounting equipment
- 5-year limited warranty
Overview
This SmartRack open frame rack has no doors or side panels. It features integrated baying tabs to combine multiple racks in rows for data center applications. It is compatible with hot-aisle/cold-aisle configurations.
The SR42UBEXPND houses 3500 lbs (1588 kgs) of standard 19-inch rack equipment in 42U. Square mounting holes on its rear and front vertical mounting rails adjust in quarter-inch increments from 4 to 37 inches. Each rack space is numbered for at-a-glance reference. An easy-to-read depth index ensures consistent rail placement without requiring time-consuming measurements.
Two vertical mounting rails support toolless button-mount 0U installation of four compatible PDUs and cable managers. This makes it easier to route cabling to rack equipment and reduces cord clutter.
Components are grounded to the enclosure frame. Threaded grounding points are provided for connection to the facility earth ground.
To simplify deployment, the SR42UBEXPND includes 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
- Ships fully assembled for rapid deployment and rolls into place on heavy-duty pre-installed casters (casters are removable)
- Front and rear sets of equipment mounting rails adjust in 1/4" increments
- The easy-view depth index ensures consistent rail placement without requiring time-consuming measurements
- Toolless accessory mounting rails (2 rails per enclosure) are compatible with 0U PDUs and vertical cable managers installed side-by-side
- Mounting slots are arranged in an industry-standard pattern compatible with a wide variety of accessories
- Mounting hardware included (50 M6 cage nuts and 50 M6 screws)
- Textured powder-coat finish stands up to busy, harsh applications, such as warehouses and basements
- Maximum usable internal depth of 37 in./94 cm (front to rear rail)
- Weight ratings: 3500 lbs (1588 kgs) stationary/2250 lbs (1020.6 kgs) rolling
- Built-in baying tabs allow secure combination of racks in rows with center-to-center width set at 600 mm or 24 in. to match standard floor tiles
- Removable leveling feet extend to allow positioning on uneven floors
- Compact design allows the rack to roll through standard-height commercial doorways
- Components are grounded to the structure, which includes multiple connections for facility ground.
- Open bottom, front and sides for convenient cable access
Package Includes
- SmartRack 42U Standard-Depth 4-Post Premium Open Frame Rack
- (50) M6 cage nuts
- (50) M6 screws
- Owner's manual
Specifications
OVERVIEW
| UPC Code | 037332154309 |
| Device Compatibility | Patch Panel; Network Switch; UPS; Server |
| Rack Type | Open-Frame |
PHYSICAL
| Color | Black |
| Rack Height | 42U |
| Rack Depth | Standard |
| Maximum Device Depth (in.) | 37 |
| Minimum Device Depth (in.) | 4 |
| Shipping Dimensions (hwd / in.) | 85.00 x 26.00 x 45.50 |
| Shipping Weight (lbs.) | 211.00 |
| Unit Dimensions (hwd / in.) | 78.500 x 23.630 x 43.000 |
| Unit Weight (lbs.) | 142 |
| Weight Capacity - Rolling (lbs.) | 2250 |
| Weight Capacity - Stationary (lbs.) | 3500 |
| Number of Vertical Mounting Rails | 4 |
FEATURES & SPECIFICATIONS
| Grounding Details | Front and Back door frames |
| Pre-Installed Casters | Yes |
STANDARDS & COMPLIANCE
| Product Certifications | IEC 60297-3; UL 60950-1 |
| Product Compliance | RoHS; CE (Europe); EIA/ECA-310-E |
WARRANTY & SUPPORT
| Product Warranty Period (Worldwide) | 5-year limited warranty |
Questions & Answers
A rack unit (commonly referred to as a "U") is a standard measure of the height of a device in a server rack. One rack unit is 44.45 mm (1.75 in) high. The height of a one rack unit device is described as 1U, a two rack unit device as 2U and so on.
Need more help? Contact Technical Support
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
Need more help? Contact Technical Support
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
Need more help? Contact Technical Support
Accessories
Data Center & IT Rack Cooling
| Model Number | Description | |
|---|---|---|
 |
SRFAN3U | SmartRack 3U Fan Panel - 3-120V high-performance fans; 210 CFM; 5-15P plug |
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SRXFAN3U | SmartRack 3U Fan Panel - 3 208-240V high-performance fans; 315 CFM; C14 inlet |
Cable Management
| Model Number | Description | |
|---|---|---|
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SRCABLEDUCT1U | SmartRack 1U Horizontal Cable Manager - Finger duct with cover |
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SRCABLEDUCT1UHD | SmartRack 1U High Capacity Horizontal Cable Manager - Finger duct with dual-hinge cover |
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SRCABLEDUCT2UHD | SmartRack 2U High Capacity Horizontal Cable Manager - Finger duct with dual-hinge cover |
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SRCABLEDUCTVRT | SmartRack 6 ft. (1.83 m) Vertical Cable Manager - Double finger duct with cover & toolless mounting |
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SRCABLELADDER | SmartRack 10-ft. x 1-ft. (3 m x 0.3 m) Cable Ladder, 2 sections - SRCABLETRAY/SRLADDERATTACH needed |
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SRCABLERING1U | SmartRack 1U Horizontal Cable Manager - Flexible ring type |
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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 |
Accessories
| Model Number | Description | |
|---|---|---|
 |
4POSTRAILKIT | 4-Post Rack-Mount Installation Kit of select Rack-Mount UPS Systems |
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4POSTRAILKIT1U | SmartRack 4-Post 1U Universal Adjustable Rack-Mount Shelf Kit |
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SR1UPANEL10 | SmartRack 1U Blanking Panel Kit - Toolless Mounting, 10 Panels, Black |
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SR1UPANEL50 | SmartRack 1U Blanking Panel Kit, Toolless-Mounting, 50 pieces |
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SR42SIDE | SmartRack Side Panel with Key-Locking Latches for 42U Server Rack Cabinet, 1 Panel |
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SRBOLTDOWN | SmartRack Bolt-Down Kit - Secures stabilizing brackets or plates to facility floor |
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SRCAGENUTS | SmartRack Square Hole Hardware Kit with 50 M6 screws and washers |
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SRCASTER | SmartRack Rolling Caster Kit, 4 pack |
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SRCASTERHDKIT | SmartRack Heavy-Duty Rolling Caster Kit, 4 pack |
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SREXTENDER | SmartRack Rack Enclosure Extension Frame - Increases rack external & maximum mounting Deep |
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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) |
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SRSHELF4PHD | SmartRack Heavy-Duty Fixed Shelf (250 lbs / 113.4 kgs capacity; 26 in/660 mm Deep) |
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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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SRVRTBAR | SmartRack 42U Vertical Cable Management Bars |
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UPSHDEARKIT | Heavy-Duty 2-post Front Mounting Ear Kit |
Documents & Downloads
Documentation
Design Resources
Product Literature
Declarations of Conformity
Useful Web Pages
Product Images
