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)
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)
Hubbell

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)

  • MPN: 52151MSB
  • UPC: 626463003312
  • PPN: HBL-52151MSB
  • UNSPSC: 39121308

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$4.23

/ EA

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Spec sheet

Description

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).

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

Additional

Size
4 in
Volume
21 cu. in.
Stud Size Compatibility
2-3/8 in, 3-5/8 in
Knockouts
6 x 1/2 in, 5 x 1/2-3/4 in combination
Number of Gangs
2-Gang
Certification
CSA Certified
Depth1.5 in
MaterialSteel
Bracket TypeMSB Metal Stud
Raised Ground ScrewYes
Weight0.75 lb

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