Orbit Industries 4SB-75 Steel Switch Box 4x4x1.5 in Galvanized

Product Description

The ORBIT INDUSTRIES 4SB-75 is a welded steel switch box designed for use in standard electrical rough-in applications. Constructed from 16-gauge sheet steel with a galvanized finish, this box provides durable corrosion resistance for long-term performance in wall and ceiling installations. It measures 4 inches x 4 inches x 1.5 inches, offering adequate interior volume for device wiring in both new construction and retrofit work. Knockout configuration includes eight 0.75-inch knockouts on the sides and two 0.5-inch knockouts on the bottom, plus two combination knockouts, giving electricians flexible conduit entry options. Licensed electricians handle installation in compliance with NEC requirements.

This switch box is suited for residential and commercial wiring installations where a square 4-inch device box is required. It accommodates standard conduit runs using 0.75-inch or 0.5-inch fittings and is appropriate for use in dry or protected locations. The welded construction and galvanized finish make it a reliable choice for general-purpose outlet, switch, and junction applications in stud or masonry wall assemblies when used with the appropriate plaster ring or mud ring cover.

Key Features

• 16-gauge sheet steel construction for rigid, durable housing
• Galvanized finish provides corrosion resistance
• Eight 0.75-inch side knockouts for flexible conduit entry
• Two 0.5-inch bottom knockouts for additional entry options
• Two combination knockouts (MKO) for versatile fitting use
• Welded body — no assembly required

Compatibility

Designed as an OEM-style replacement and standard-fit switch box for residential and commercial electrical rough-in applications requiring a 4-inch square, 1.5-inch deep steel device box.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit at the breaker panel before beginning any wiring work. Knockouts should be removed only as needed using a screwdriver and hammer or a knockout punch to avoid damage to unused ports. Use appropriate conduit fittings and locknuts rated for the conduit type being installed.

Technical Specifications

• Dimensions: 4 inches x 4 inches x 1.5 inches
• Material: 16-gauge sheet steel
• Finish: Galvanized
• Construction: Welded
• Side Knockouts: 8 x 0.75 inches
• Bottom Knockouts: 2 x 0.5 inches
• Combination Knockouts (MKO): 2
• UPC: 835243001411

Standard Information

• Brand: ORBIT INDUSTRIES
• Manufacturer Part Number: 4SB-75