DK7721.135 Rittal Wall-mounted enclosures 3-part WHD: 600x1012x473mm 21 U

Why Choose the Rittal DK7721.135 21 U Wall-Mounted Enclosure?

The Rittal DK7721.135 is a robust and versatile 21 U three-part wall-mounted IT enclosure designed for professional networking, telecommunications and industrial IT installations. As part of the Rittal EL wall-mounted enclosure range, it combines a space-efficient wall-mounted format with a hinged centre section that provides excellent access to installed equipment and rear cabling.

Designed for standard 482.6 mm (19-inch) equipment, the DK7721.135 incorporates two front mounting angles that are infinitely adjustable in depth. The enclosure is supplied pre-configured with vertical mounting rails, a horizontal C rail for cable clamping, solid top and bottom gland plates, wall-mounting brackets and an integrated earthing arrangement, helping simplify installation in professional IT environments.

With external dimensions of 600 × 1012 × 473 mm (W × H × D) and a maximum installation depth of 420 mm, the enclosure provides substantial 19-inch equipment capacity without requiring valuable floor space. Its IP55 protection rating, durable sheet-steel construction and glazed designer door make it particularly suitable for installations requiring secure and protected network infrastructure.

Key Advantages

• Professional 21 U wall-mounted IT enclosure for networking and communications equipment.
• Three-part construction provides improved access to equipment and rear cabling.
• IP55 protection rating for dependable equipment protection.
• Two 482.6 mm (19-inch) mounting angles with infinitely variable depth adjustment.
• 420 mm maximum installation depth accommodates a wide range of rack-mounted components.
• Hinged section supports a static load of 750 N (approximately 75 kg).
• Integrated cable-management rails and gland plates support organised professional installations.
• Secure glazed designer door provides equipment visibility while restricting unauthorised access.

Key Features

• Rittal EL three-part wall-mounted enclosure.
• 21 U rack capacity.
• 600 × 1012 × 473 mm external dimensions.
• 420 mm maximum installation depth.
• Two front 482.6 mm (19-inch) mounting angles, infinitely adjustable in depth.
• Hinged section with 25 mm pitch pattern in the front and rear frames.
• 1.5 mm sheet-steel wall and hinged sections.
• 3 mm single-pane safety-glass viewing window.
• Powder-coated construction finished primarily in RAL 7035.
• Glazed designer door finished in RAL 7035/7015.
• IP55 protection rating to IEC 60529.
• IK08 impact resistance.
• Solid top and bottom gland plates for controlled cable entry.
• Two vertical mounting rails and horizontal C rail for cable clamping.
• Mini-comfort handle with 3524 E security lock and two-point locking.

Protected 19-Inch Infrastructure with Excellent Accessibility

Wall-mounted 19-inch enclosures provide an efficient way to accommodate network switches, patch panels, telecommunications hardware and other IT equipment where a floor-standing rack is unnecessary or impractical. The Rittal DK7721.135 provides 21 U of equipment capacity while its three-part construction allows the hinged section to provide convenient access to the rear of installed components.

The combination of depth-adjustable mounting angles, cable-clamping rails and solid gland plates helps installers create organised and maintainable infrastructure. Its IP55 enclosure protection and IK08 impact resistance provide additional protection for installed equipment, while the glazed door enables visual inspection without opening the enclosure.

Typical Applications

• Network switches, routers and patch-panel installations.
• Structured data and telecommunications cabling.
• Wall-mounted 19-inch IT infrastructure.
• Industrial Ethernet and automation networks.
• Communications, CCTV and security equipment.
• Server rooms and technical equipment rooms.
• Distributed network and edge infrastructure.
• Industrial and commercial premises requiring protected IT equipment.