Middle Atlantic AL3356Z Grommeted Cover Plate
Overview
The Middle Atlantic AL3356Z is a grommeted cover plate designed to close unused openings in rack enclosures and AV furniture. Unsealed rack openings undermine airflow management, allow dust ingress, and create cable-routing hazards — this cover plate addresses all three by providing a finished, grommet-fitted closure. The AL3356Z is suited to installations where a clean cable pass-through is needed alongside a blanked panel, maintaining the integrity of the enclosure without sacrificing accessibility. Whether you are closing off an unused bay in a network rack or managing conduit entry points in an AV credenza, a properly fitted grommeted cover keeps the installation looking intentional and performing correctly.
Middle Atlantic manufactures a broad line of Middle Atlantic rack accessories and enclosure components. The AL3356Z fits within that ecosystem as a finishing and cable-management component for rack enclosure accessories.
Compatibility
The AL3356Z is a Middle Atlantic enclosure accessory. Middle Atlantic cover plates and blanking panels are generally produced to fit specific enclosure lines — including the Middle Atlantic Essex, BGR, UREACT, and PTRK series rack systems. Confirm the exact opening dimensions of your enclosure against this part before ordering; Middle Atlantic designates panel sizes by rack unit height and width in their part numbering system, and grommet cutout dimensions vary across the product family. Consult Middle Atlantic's rack enclosure compatibility documentation or the enclosure's original bill of materials to verify fit.
Installation Notes
Cover plates in this class typically snap or screw into the enclosure's front or rear panel openings. No special tooling beyond a standard screwdriver is expected. Route cables through the grommet opening before final seating to avoid having to re-open the panel later. For proper cable management in rack builds, pair grommeted cover plates with horizontal or vertical managers to maintain bend-radius compliance on structured cabling.
