Middle Atlantic DWR-RR21 Rear Rail Kit 21 Space

Product Description

The MIDDLE ATLANTIC DWR-RR21 is a 21-space rear rail kit designed for use with DWR series wall-mount rack enclosures. This kit provides the rear vertical rails needed to complete rack installation, giving technicians a secure mounting structure for housing AV components, network equipment, patch panels, and other rack-mountable gear. The DWR-RR21 is sold as a single kit per unit and installs in fixed-wall rack systems where rear support rails are required for proper equipment retention and cable management.

This rear rail kit is intended for use in professional AV, IT, and low-voltage installations where DWR series enclosures are deployed. Typical applications include commercial AV racks, structured wiring installations, network closets, and similar environments where wall-mount rack solutions are specified. The 21-space capacity accommodates standard 1.75-inch rack unit equipment across a full 21U configuration, making it suitable for moderate-density equipment loads in both new construction and retrofit projects.

Key Features

• 21-space (21U) rear rail configuration for DWR series wall-mount enclosures
• Provides rear vertical rail support for secure equipment mounting
• Compatible with standard rack-unit equipment at 1.75 inches per U
• Sold as a single kit per unit (each)
• Designed for professional AV, IT, and low-voltage rack installations

Compatibility

Designed as an OEM-style accessory for MIDDLE ATLANTIC DWR series wall-mount rack enclosures requiring rear rail installation support.

Installation Notes

Installation is typically performed by a licensed low-voltage technician or AV integrator. Power down and de-energize all equipment in the enclosure before adding or modifying rack rails. Follow the enclosure manufacturer's hardware specifications and torque guidelines as provided in the DWR series installation documentation. Local building and electrical codes, including applicable NEC low-voltage requirements, should be observed throughout the installation.