Middle Atlantic DS4000 Internal Elbow MAT - DS4017-BK

Middle Atlantic DS4017-BK DS4000 Internal Elbow Fitting

Overview

The DS4017-BK is an internal elbow fitting designed for use with Middle Atlantic DS4000 series raceway and cord cover systems. It provides a clean, finished 90-degree directional change inside a run — the component you need when a cable management path turns a corner and the raceway channel must follow without exposing conductors or creating a stress bend. Black finish matches the DS4000 series profile for a uniform installation appearance. This fitting is TAA-compliant, making it eligible for U.S. federal procurement and government facility deployments where Trade Agreements Act conformance is a contract requirement.

Compatibility

This fitting is purpose-built for the Middle Atlantic DS4000 series raceway and cord cover system. It is not a universal fitting — confirm your installed raceway is the DS4000 family before ordering. The DS4017-BK handles internal corner transitions; separate fittings are required for external elbows, flat elbows, and tee junctions within the same system. If you are building out a complete structured cabling run using DS4000 raceway, pair this fitting with the appropriate DS4000 base, cover, and end cap components to maintain a continuous, code-compliant installation.

Installation Notes

Install the DS4017-BK at the inside corner of a 90-degree wall or surface transition within a DS4000 raceway run. The fitting seats into the raceway channel and secures to match the standard DS4000 mounting method — no specialized tooling required beyond standard installation hardware used throughout the DS4000 system. Ensure cable fill does not exceed raceway capacity at the elbow, as bend radius constraints at a 90-degree transition are tighter than in straight runs; derate fill accordingly for larger-diameter cables.