Hubbell 52151MSB 4 In. Square Steel Stud Box, 1-1/2 in. Deep, 21 Cu. In., with MSB Metal Stud Bracket, for 2-3/8 and 3-5/8 in. Stud Size, with Concentric and 1/2 in. KO, Raised Ground Screw (20-Pack)

Description

Features

• Featuring a pre-installed Metal Stud Bracket (MSB), this box allows for rapid, secure mounting by simply snapping or screwing the bracket directly to the side of the stud. This "no-measure" design ensures your outlets and switches are perfectly aligned and flush with the wall surface every time, drastically reducing labor hours for commercial contractors and DIYers alike during the rough-in phase.
• With a standard 1.5-inch depth and 21-cubic-inch capacity, this 4-square box provides ample room for thick-bodied devices and the high wire-fill counts typical in 12AWG and 14AWG branch circuits. The extra internal volume prevents "wire crowding" and insulation damage, making it the ideal solution for modern high-density electrical installations.
• Engineered with multiple 1/2" and 3/4" eccentric knockouts, this box offers maximum flexibility for routing EMT conduit or armored cable (BX/MC) from any direction. The precision-stamped knockouts pop out cleanly without deforming the box, allowing for a tight, code-compliant seal that maintains the integrity of your grounding path in commercial and industrial environments.

Documentation & Downloads

Specifications