Middle Atlantic G2010A3 STL Entrance End Fitting

The Middle Atlantic G2010A3 is a gray entrance end fitting built for STL cable-routing raceway systems, giving integrators a clean, finished transition point where cable enters or exits a Middle Atlantic STL run. It's a small component, but on a rack elevation or a wall-mounted equipment run, the entrance fitting is what determines whether your cable pathway looks finished or looks like an afterthought — G2010A3 is sized and shaped to close that gap cleanly.

Key Features

• 0.75 in (1.9 cm) Knock Out: Sized for standard low-voltage cable bundles and connectors, the pre-formed knockout lets you open an entry point on site without drilling or fabricating a hole — faster rough-in and a cleaner edge than a hand-cut opening.
• Gray Finish: Matches the standard finish used across Middle Atlantic's STL raceway and rack lineup, so the fitting blends into the run instead of standing out as a mismatched patch part.
• TAA Compliant: Meets Trade Agreements Act sourcing requirements, which matters directly if you're specifying this into a federal, state, or other government-funded integration where TAA compliance is a purchasing requirement, not a preference.

Integration & Compatibility

As an entrance end fitting, the G2010A3 is designed to terminate a Middle Atlantic STL cable raceway run rather than function as a standalone enclosure. If you're already standardized on Middle Atlantic STL raceway for your rack room or equipment closet cable management, this fitting is the correct part family to match — check your existing raceway width and profile against the G2010A3 before ordering to confirm fit, since Middle Atlantic offers multiple STL sizes. For broader rack planning, a rack accessories category page is worth reviewing if you're speccing an entire cable management run rather than a single fitting, and a general buying guide section can help if you're unsure which STL width your build requires.

Because this is a small hardware component rather than a powered or networked device, there isn't a meaningful analytics, compression, or connectivity story to tell here — the value of the G2010A3 is entirely mechanical: it closes out a raceway run with a factory-matched fitting instead of an improvised opening.

Ted Perry

The G2010A3 is one of those parts nobody thinks about until the rack room passes final walkthrough. It's Middle Atlantic's entrance end fitting for STL raceway, gray finish, with a 0.75 in factory knockout.

Technical Highlights:

• 0.75 in Knock Out: pre-sized for standard cable entry, so you're not hand-cutting an opening in the field and risking a ragged edge on a customer-visible install.
• Gray Finish: matches Middle Atlantic's standard STL and rack color, so the fitting doesn't read as an add-on part in the final rack elevation photos.
• TAA Compliant: a real requirement on government and prime-contractor jobs — G2010A3 clears that bar without a workaround part.

Deployment Considerations:

• Confirm your STL raceway width before ordering — Middle Atlantic runs more than one STL profile, and end fittings are size-matched to a specific raceway.
• This is a finishing/termination part, not a full enclosure — plan it as the last piece of a raceway run, not the starting point of your cable management design.

Good fit for a rack-room build already standardized on Middle Atlantic STL raceway where the spec calls for TAA-compliant components throughout, and where the entrance point needs to look factory-finished on inspection.