450mm deep 19-inch data cabinets
450mm Deep Data Cabinets
Explore 450mm deep 19-inch data cabinets for wall-mounted networking equipment that requires more room than a shallow 300mm enclosure. Choose the rack height separately and check the actual equipment depth, rail position and space needed for power and network cabling.
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Compare 450mm data cabinets
Compare available rack heights, assembly types and current prices for 450mm deep 19-inch cabinets.
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12U 450mm Deep 19"
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6U 450mm Deep 19"
Is a 450mm-deep cabinet the right choice?
A 450mm cabinet gives you more room behind your equipment than a shallow 300mm model. It is a useful middle ground for installations that need extra cable clearance without moving to the deepest wall-mounted cabinet.
Allow for the equipment and its connections
Our 450mm P Series cabinets have approximately 400mm of usable internal depth. We recommend equipment around 350mm deep or less where practical, leaving room for mains plugs, network and fibre connectors, and cable bends. Check the actual equipment and cabinet dimensions rather than relying on the outside cabinet depth.
Measure from the mounting face
Start at the front rack ears and measure to the rearmost part of the equipment. Include anything projecting from the front or back, and check the mounting-profile position. The cabinet door still needs to close without pressing against cables or controls.
Choose the right rack height and assembly format
Depth does not tell you how many rack units you need. Compare the available heights and check whether your chosen cabinet is supplied ready assembled or flat packed. If your equipment needs more depth, look at the 600mm range before ordering.
Need help planning your installation? Try the Cabinet Finder or use the Cabinet Builder to select compatible accessories.
450mm Data Cabinets: Your Questions Answered
Understand usable equipment depth, cable and connector clearance, mounting-profile adjustment and which devices will fit.
How deep should equipment normally be in a 450mm cabinet?
For a 450mm cabinet, we recommend equipment approximately 350mm deep or less where practical.
Usable internal depth is approximately 400mm, leaving additional room for rear connectors, cable routing and mounting-profile adjustment.
The approximate maximum physical equipment envelope is around 410mm, subject to rail position and the clearances required by the equipment.
What does “recommended equipment depth” mean, and why is it smaller than the cabinet’s usable depth?
It’s the depth we’d normally suggest designing around rather than attempting to occupy every last millimetre inside the enclosure.
The difference gives you working room for rear connectors, cable bends, rail adjustment and front clearance. It also leaves some tolerance for those irritating parts of real equipment that specification drawings sometimes make look almost apologetically insignificant.
Our recommended equipment depths are approximately 200mm in a 300mm cabinet, 350mm in a 450mm cabinet, 450mm in a 550mm cabinet and 500mm in a 600mm cabinet.
A 250mm internal space doesn’t mean a 249mm-deep device is a good idea if its power plug then needs another 35mm in which to exist.
Think of the recommendation as comfortable working territory rather than the physical edge of the map.
How should I measure the depth of rack-mounted equipment?
Measure from the front mounting face, where the rack ears sit against the cabinet profiles, to the rearmost part of the chassis.
Then look at what sticks out beyond it.
Power plugs, network connectors, fibre connectors and cable bends all need space too.
Do rear plugs, connectors and cable bends need to be included when checking equipment depth?
Very much so.
The chassis depth tells you where the equipment finishes. It doesn’t tell you where the installation finishes.
An IEC plug, RJ45 connector, fibre lead or other rear connection can require significant additional space, and cables need a sensible bend rather than being folded immediately against the rear panel.
This is one reason the recommended equipment depth is deliberately smaller than the available internal depth. A switch that fits perfectly until somebody attempts to connect electricity to it has only passed the first half of the examination.
Is a deeper cabinet generally easier to cable and work inside?
Usually, yes.
Additional depth gives your hands, connectors and cable loops somewhere to go. It can make rear connections easier to reach, allow gentler cable bends and provide more freedom when positioning the mounting profiles.
This becomes particularly noticeable once several pieces of equipment are installed and the rear of the cabinet has acquired the usual collection of mains leads, patch cables and things you were certain would occupy almost no space.
The trade-off is obvious: a deeper cabinet also projects further into the room.
So choose enough depth to make the installation practical without buying substantially more enclosure than the location can comfortably accommodate.
What is the difference between a ready-assembled and flat-packed 19-inch cabinet?
Functionally, very little once both are assembled correctly.
The ready-assembled cabinet arrives built, with the door, side panels, mounting profiles, cable-entry covers, locks and bonding components already fitted. The flat-packed version arrives as the same basic cabinet construction in pieces and needs assembling before use.
One practical advantage of the flat-packed version is access. In pieces, it can pass through openings that a fully assembled cabinet may not. A loft hatch is a good example: the finished cabinet might have no realistic chance of getting through it, while the individual panels can be carried up and the cabinet assembled in position.
You’re choosing between factory assembly and doing the assembly yourself, not between two different grades of cabinet.
The flat-pack version hasn’t sacrificed structural integrity for the privilege of fitting into a flatter cardboard box. Once assembled correctly, it’s intended to perform the same job as the ready-assembled version.