Middle Atlantic ERK-4020LRD-21873 40U Standalone Rack Config Kit
Overview
The Middle Atlantic ERK-4020LRD-21873 is a factory-configured, kitted standalone equipment rack sized at 40 rack units of vertical space with 20 inches of usable depth — purpose-built for AV distribution, security head-end, and network infrastructure deployments where a pre-specified enclosure saves on-site assembly time. The ERK series from Middle Atlantic racks and enclosures ships as a complete, ready-to-configure unit rather than a field-assembled collection of loose components, reducing staging time in rack rooms and equipment closets. This model's kitted configuration means the primary structural hardware arrives pre-sorted for a known bill of materials, which matters on multi-rack security deployments where part shortages stall commissioning.
Compatibility
The ERK-4020LRD-21873 is compatible with standard 19-inch rack-mount enclosures and accepts any EIA-310-compliant 19-inch rack-mount equipment — including network video recorders, managed PoE switches, patch panels, power distribution units, and UPS units that fall within the 20-inch usable depth constraint. It fits within Middle Atlantic's ERK family framework, making it directly compatible with Middle Atlantic rack accessories including shelves, blanks, cable management panels, and side panels designed for the ERK series. Integrators pairing this rack with active PoE switch infrastructure should confirm equipment depth against the 20-inch internal clearance before specifying deep 1U switches or large UPS chassis.
Installation Notes
The kitted configuration is intended for standalone (floor-standing) deployment. Verify floor loading capacity before placing fully populated — a 40U rack at maximum load with UPS, NVR, and switching gear can exceed 500 lbs. Route top-entry or bottom-entry cable management paths before populating upper rack units, as access becomes restricted with gear installed. Middle Atlantic ERK series racks accept leveling feet and casters as separately ordered accessories; confirm which are included in this specific kit configuration against the packing list before scheduling installation.
