Rack Shelf Delta 19" 2U 255mm P19-2U/255 — 2U 255 mm fixed server rack shelf

Delta 19" rack shelf P19-2U/255 is a fixed 2U shelf with a usable depth of 255 mm designed for 19-inch server cabinets and network racks. It offers a stable horizontal surface to support non-rack-mountable equipment and peripherals, enabling neat placement of servers, switches, UPS modules and other devices inside a cabinet. The shelf is intended to integrate with standard 19" mounting rails and to distribute load evenly within the rack space.

Advantages

The fixed 2U form factor ensures consistent positioning and simple installation in standard 19" cabinets. With a 255 mm depth, the shelf accommodates compact devices and accessories that do not require full-depth mounting. Constructed for load distribution, it reduces stress on individual mounting points and helps maintain orderly cable routing and airflow within the rack. The Delta design focuses on compatibility with common rack dimensions and on providing a durable, stable platform for mixed equipment.

Suitable for

• Small servers and blade chassis accessories that need a flat mounting surface
• Network switches and unmanaged devices without rack ears
• UPS modules, power distribution units and battery packs of limited depth
• Peripherals such as external hard drives, modems, and monitoring equipment
• Temporary or permanent placement of tools and spares inside the cabinet

Key specifications

• Mounting format: 19-inch, 2U height
• Usable depth: 255 mm
• Mounting type: fixed shelf for standard rack rails
• Material and finish: metal construction with protective coating (standard for rack shelves)
• Compatibility: standard 19" server cabinets and network racks

How to use

Install the shelf by aligning it with the desired 2U position on the rack's 19" mounting rails and secure it using appropriate rack screws and cage nuts for the cabinet. Place equipment centrally on the shelf to balance the load and avoid overhanging heavier components. Route cables along the rack’s vertical management channels or tie points to keep connections organized and to prevent strain on device ports. Verify that the total weight on the shelf does not exceed the rack’s rated capacity and adjust placement if necessary to maintain proper airflow and access to front and rear panels.

Usage recommendations

For safe and long-term use, mount heavier items close to the rack posts and distribute weight across multiple mounting positions when possible. Use rubber pads or anti-slip liners to reduce vibration and movement of smaller devices. Regularly inspect mounting hardware and cable routes to prevent loosening and to ensure unobstructed ventilation.