Middle Atlantic Single Gang Cover Heyco D - SGT-H

Middle Atlantic SGT-H Single Gang Cover with Heyco D Strain Relief

Overview

The Middle Atlantic SGT-H is a single gang cover plate fitted with a Heyco D-style strain relief bushing, designed for rack enclosure cable entry points where a clean, protected pass-through matters. Install this cover on standard single gang openings to route low-voltage cables — control wiring, USB, audio signal lines, or serial runs — into a rack cabinet without leaving an open knockout that collects dust or creates a sag point on the cable jacket. The SGT-H keeps the cable anchored at the panel face rather than relying on tension from inside the enclosure.

Compatibility

Designed for use with Middle Atlantic rack enclosures and equipment enclosure systems that accept standard single gang accessory covers, including the Middle Atlantic WRK, ERK, and BGR series rack cabinets. The Heyco D bushing accommodates round cable diameters typical of low-voltage control and signal cables. Verify the knockout dimensions on your specific enclosure panel before ordering — this cover is purpose-built for single gang cutouts, not duplex or modular openings.

Installation Notes

Snap or screw the cover into the single gang opening per the enclosure's standard faceplate mounting method. Feed the cable through the Heyco D bushing before terminating — the bushing grips the cable jacket to prevent pull-through and protects the jacket edge from sharp metal. No special tools required beyond a standard screwdriver. Do not exceed the bushing's rated cable diameter; oversizing the cable will prevent the strain relief from seating correctly and defeat its purpose.