Middle Atlantic STL Ext. BOX Open Base WH - 5737AWH

Middle Atlantic 5737AWH STL Open Base Extension Box Fitting — White

Overview

The Middle Atlantic 5737AWH is a white steel open base extension box fitting designed for the Middle Atlantic 500 and 700 series raceway systems. At 5.5 in × 5.5 in (14 cm × 14 cm), this fitting extends junction or device boxes at the base of a raceway and cord cover run — the right component when a standard base box depth falls short for your wiring or device termination requirements. TAA compliant, making it a valid choice for federal and government-funded installations subject to the Trade Agreements Act. Use the 5737AWH wherever a deeper or extended box profile is needed at the base of a 500- or 700-series raceway fitting — common in commercial wall-mount AV, security, and low-voltage wiring applications where conduit fill or device depth exceeds the standard fitting envelope.

Compatibility

Designed specifically for Middle Atlantic's 5737A-series 500 and 700 series open base fitting product family. Pairs with the corresponding base box and raceway channel components in the cable management line. Confirm the series designation (500 or 700) and color (white) match your installed raceway before ordering — the 5737A family includes variants across colors and configurations that are not interchangeable.