4″ x 2-1/8″ Utility Box, 25 Knockouts, Steel, Sqaure

Raco 232 – 4″ x 2-1/8″ Welded Steel Utility Box with 30.3 cu. in. Capacity

The Raco 232 is a pre-galvanized steel utility box designed for branch circuit wiring in commercial, industrial, and residential applications. With a 30.3 cubic inch volume and multiple 1/2″ and 3/4″ knockouts, this welded box supports a wide range of electrical configurations, including receptacles, switches, and spliced conductors.

This model meets NEC requirements for enclosure fill and is constructed from 1/16″ (1.6 mm) steel to withstand mechanical stress during installation and long-term use. Welded corners and combination screw heads simplify both new and retrofit installations where structural rigidity and code compliance are required.

Application Features

• ✅ Welded Construction – Provides added structural integrity for device mounting and wall anchoring.
• ✅ 30.3 cu. in. Volume – Accommodates multiple conductors while maintaining NEC fill limits.
• ✅ Multiple Conduit Entry Points – Includes 25 knockouts (combination of 1/2″ and 3/4″) to support versatile conduit layouts.
• ✅ Pre-Galvanized Steel – Resists corrosion during rough-in and service life in dry indoor environments.
• ✅ UL Listed – Certified to meet applicable safety and performance standards (File No. E195978).

Technical Specifications

• Catalog Number: 232
• Material: 1/16″ Pre-Galvanized Steel
• Dimensions: 4″ x 2-1/8″
• Capacity: 30.3 cu. in.
• Knockouts: 25 total – 13 × 1/2″, 12 × 3/4″ (concentric)
• Voltage Rating: Up to 600V applications
• Certifications: UL Listed

Installation Considerations

Designed for use with standard switch box supports, plaster rings, and device brackets. Compatible with steel studs and wood framing. Mounting tabs and concentric KOs allow for alignment with vertical and horizontal conduit runs. For junction or device box use, select cover plates and extension rings per application requirements.

Professional Use Case

The Raco 232 is suited for high-density wiring environments such as multi-gang switch installations, control boxes, or spliced branch circuits. Its welded seams ensure rigidity when mounted in exposed or concealed locations, such as commercial wall partitions or utility rooms. The box’s KO pattern supports flexible conduit routing with minimal field modification.

Key Functional Advantages

• ✅ UL-Compliant Construction – Approved for general-purpose electrical enclosure use.
• ✅ Combination Screws – Accept both flathead and Phillips drivers to improve field efficiency.
• ✅ High-Capacity Design – Exceeds standard single-gang volumes for added termination space.
• ✅ Multi-Knockout Layout – Allows direct alignment with existing conduit or MC/AC cable runs.