90-Degree Steel Internal Elbow Raceway Structural Fitting, engineered explicitly to guide right-angle inside corner transitions smoothly along large-scale 4000-series multi-channel steel perimeter raceway systems. Operating with a standard 600VAC industrial voltage profile, it features a heavy-gauge structural steel core block treated with a gray baked-enamel ScuffCoat finish to deliver an ultra-durable, scratch-resistant surface boundary across commercial manufacturing panels, laboratory testing enclosures, and open-chassis plant facility frameworks. The specialized "G" Prefix Layout specifies a factory-calibrated gray color profile, and the assembly comes equipped with an integrated protective fiber bushing array to prevent wire-chafing defects and safeguard deep multi-conductor data trunks from sharp metallic edge damage during high-capacity manual pulling stress. Housed in a standard 4-3/4 inch width perimeter-based structural footprint template layout designed to interconnect seamlessly with 4000-series base networks. Manufactured by Wiremold (Legrand). (The historical manual inventory descriptor listing "METAL BOX" notes its factory distribution context or its identity as a thick-walled metallic dual-channel raceway fitting variant)