Middle Atlantic ALDS4017 Internal Elbow

Overview

The Middle Atlantic ALDS4017 is an internal elbow fitting designed for the Middle Atlantic ALDS4000 cable management duct system. It provides a right-angle transition inside a duct run — the fitting you reach for when a cable path needs to change direction within a rack or wall-mount enclosure without kinking or stressing the cables inside. If you are routing structured cabling, power leads, or low-voltage control wiring through an ALDS4000 duct and need a 90-degree internal corner, the ALDS4017 keeps the run continuous and the bend radius safe. This is a purpose-built cable management component, not a universal fitting — it is matched to the ALDS4000 duct profile for flush, gap-free joints.

Compatibility

The ALDS4017 is designed for use with the Middle Atlantic ALDS4000 series cable duct. Confirm your duct size and series before ordering — Middle Atlantic produces multiple duct families and elbow fittings are not interchangeable across series. If you are working with a different Middle Atlantic duct system, verify the fitting number against that series' accessory list. This fitting is a standard component in structured AV and security rack builds using rack cable management from Middle Atlantic.

Installation Notes

Internal elbows snap or clip into the duct body at the corner transition point. No special tools are typically required beyond what is needed for the duct installation itself. Ensure the duct run is fully supported before completing the elbow joint — unsupported spans can place stress on the fitting. Route cables before closing the duct cover to confirm adequate bend radius clearance at the elbow. For larger cable counts or stiffer cable types, account for the reduced interior radius at the elbow when calculating fill capacity.