In order to allow for mechanical tolerances and to provide some space between panels typically for each 1u of height manufacturers.
1u rack height inches.
Rack servers and other hardware designed to be rack mounted are manufactured in multiples of 1 75 inches and specified in multiples of rack units usually 1u 2u 3u or 4u.
Many wall mounted enclosures for industrial equipment use 19 inch racks.
A typical full size rack is 42u which means it holds just over 6 feet 180 cm of equipment and a typical half height rack is 18 22u which is around 3 feet 91 cm high.
Our custom racks may be fitted with air conditioning and frames to handle payloads over 1000 lbs.
Rack units to inches quick reference guide what is a rack unit.
One u is 1 75 inches 44 45mm.
Or contact us to discuss your specific requirements.
The picture courtesy of dell inc shows some of the dell poweredge servers and examples of different rackmount units.
This would mean an 6u server is 10 5 or 266 7 mm in height.
Therefore a 2u rack mount height would be 2 x 1 75 which equals 3 5 inches high.
One rack unit u is 1 75 inches.
A 3u height would be 3 x 1 75 5 25 inches.
The u or rack unit was created by the electronic industries association eia.
Find your case by selecting rack height a and rack depth b on the left hand column.
It should be noted that the 1u 2u 3u etc heights are maximum dimensions.
The eia standard was created for cabinets racks and panels as well as other associated equipment.
When leasing space in a colocation facility or planning for an on site network cabinet or closet customers should focus on four key issues.
The height of a rack can vary from a few inches such as in a broadcast console to a floor mounted rack whose interior is 45 rack units 200 2 centimetres or 78 82 inches high.
The rack unit is a standard measurement for server height.
The standard rack at 19 inches is 42u.
It sets a standard for system spacing mounting bezel clearance as well as placement of the mounting holes in the mounting flange.
The 19 inch rack article gives credit to at t for setting the height for 1u at 1 75 inches.
A rack unit abbreviated u or ru is a unit of measure defined as 1 75 inches.
Related standards 10 inch rack.
It is most frequently used as a measurement of the usable space of 19 inch rack frames as well as the height of equipment that mounts in these frames where the height of the equip ment is.
42u is a common configuration.