RACO 231 4 in. Square Welded Steel Box, 2-1/8 in. Deep

RACO 231 4 in. Square Welded Steel Box, 2-1/8 in. Deep

The RACO 231 is a 4 in. square welded steel box engineered for conduit wiring systems in commercial and industrial electrical installations. Its welded steel construction delivers a rigid, one-piece enclosure built to withstand the demands of the job site, while the 2-1/8 in. depth provides generous interior volume for splices, pigtails, and device connections. The square shape and knockout configuration—one 1/2 in. and eleven 3/4 in. knockouts—support a wide range of conduit entry points, making the RACO 231 a versatile choice for new construction and retrofit conduit runs. This box is UL Listed, helping electricians meet code requirements on commercial and industrial jobs.

Key Features

• Trade Size: 4 in. square box footprint sized for standard conduit wiring installations and compatible device and cover combinations.
• Square Shape: Square configuration provides a generous, uniform interior footprint for wiring and splice work.
• Durable Construction: Welded steel body forms a rigid, one-piece enclosure built to withstand the demands of commercial and industrial job sites.
• Depth: 2-1/8 in. deep design provides ample interior volume for wire fill, splices, and device mounting.
• Knockouts: Includes one 1/2 in. and eleven 3/4 in. knockouts, giving installers multiple conduit entry options without additional field drilling.
• Wiring System: Compatible with conduit wiring systems for conduit-fed branch circuits.
• Bracket Type: No bracket, allowing for flexible box-only or surface mounting configurations depending on the installation.

Certifications & Compliance

• UL Listed

Technical Specifications

• Product Type: Steel Box
• Product Size: 4 in
• Product Depth: 2.125 in
• Product Shape: Square
• Drawn or Welded: Welded
• Bracket Type: No Bracket
• Wiring System: Conduit
• Knockouts: 1/2 in;3/4 in
• Certified Listed: UL Listed

Typical Applications

• Commercial and Industrial Electrical Installations
• Conduit Wiring Systems
• Junction and Outlet Box Applications
• New Construction Projects
• Electrical Renovation and Retrofit Work

Why RACO?

RACO manufactures the 231 square box with welded steel construction for a rugged, one-piece enclosure that stands up to the demands of commercial and industrial electrical work. The generous 2-1/8 in. depth combined with one 1/2 in. and eleven 3/4 in. knockouts gives installers the flexibility to route multiple conduit runs without sacrificing box strength. As a UL Listed product, the RACO 231 supports code-compliant conduit wiring installations. Choose RACO for dependable, professional-grade electrical boxes built for the trade.