Middle Atlantic External Elbow - AL3318

Middle Atlantic AL3318 External Elbow

Overview

The Middle Atlantic AL3318 is an external elbow fitting designed to transition cables from inside a rack enclosure to an external cable pathway without sharp bends that can stress conductors or damage jacket insulation. In structured-cabling and AV-over-IP rack builds where cable density is high and dressing matters for both airflow and serviceability, the AL3318 provides a defined exit point that keeps runs organized and strain-free. It installs at the rack's exterior panel, forming a smooth directional change — typically 90° — so that power, data, and signal cables leave the cabinet on a controlled path rather than pulling at awkward angles.

Compatibility

The AL3318 is part of Middle Atlantic's AL-series cable management accessories and is designed to integrate with Middle Atlantic rack enclosures and cable management systems. It is specifically suited for use with Middle Atlantic's lacing bar and horizontal cable manager product lines, including enclosures in the ERK, WRK, and BGR rack families where external cable egress points are required. For complete rack infrastructure planning, pair with compatible rack accessories such as horizontal lacing bars and vertical cable managers within the same Middle Atlantic ecosystem. Verify panel cutout dimensions against your specific enclosure model before ordering — Middle Atlantic publishes per-SKU cutout templates on their product documentation pages.

Installation Notes

Mount the AL3318 at the designated knockout or cutout position on the rack's rear or side panel. Confirm the panel thickness is within the fitting's clamp range before installation. Route cables through the elbow after mounting to avoid pulling assembled bundles through a tight radius. Use hook-and-loop ties rather than rigid zip ties at the elbow exit to allow future re-dressing without disturbing the fitting. For cable management runs exceeding the rack depth, a supplementary horizontal manager above or below the elbow maintains dressing continuity.