RACO 833 4-11/16 in. Flat Square Cover with Centered 1/2 in. KO

RACO 833 4-11/16 in. Flat Square Cover with Centered 1/2 in. KO

The RACO 833 is a 4-11/16 in. square flat cover designed to close and protect square electrical boxes used throughout commercial, industrial, and residential wiring systems. This flat, square-shaped cover features a centered 1/2 in. knockout that allows electricians to route conduit or fittings through the center of the plate without additional layout or drilling. Manufactured to meet demanding jobsite standards, the RACO 833 is cULus Listed, giving contractors and inspectors confidence that the product meets recognized safety requirements for electrical installations. Its flat profile keeps the finished box assembly low and unobtrusive, making it a practical choice wherever a simple, reliable square box cover is required.

Key Features

• Trade Size: 4-11/16 in. square cover sized to match standard 4-11/16 in. square electrical boxes for a secure, accurate fit.
• Flat Square Profile: The flat square design sits cleanly over the box opening, providing a finished, low-profile appearance suitable for concealed and exposed installations.
• Centered 1/2 in. Knockout: A single, centered 1/2 in. knockout is pre-positioned in the middle of the cover, simplifying conduit or fitting entry and eliminating off-center measuring.
• cULus Listed: Independently certified to cULus safety standards, supporting code-compliant installations inspected under recognized electrical codes.
• Purpose-Built Cover: Engineered specifically as a cover for straightforward stocking and use wherever a plain square box closure is needed.
• Compatible Square Box Fit: Matches the 4-11/16 in. square box family widely used in commercial and industrial branch-circuit wiring.
• Simple Installation: The centered knockout and flat design allow quick installation with standard mounting screws, reducing labor time on the jobsite.

Certifications & Compliance

• cULus Listed

Technical Specifications

• Product Type: Cover
• Product Size: 4-11/16 in
• Product Shape: Square
• Certified Listed: cULus Listed

Typical Applications

• Square Electrical Box Covers
• Commercial and Industrial Electrical Installations
• Conduit and Fitting Entry Points Requiring a Centered 1/2 in. Knockout
• New Construction Wiring Projects
• Electrical Renovation and Retrofit Work
• Junction and Pull Box Closures

Why RACO?

RACO has long supplied electrical boxes, covers, and fittings relied on by electrical contractors for dependable, code-compliant performance. The 833 flat square cover reflects that standard, combining a precise 4-11/16 in. square fit, a centered 1/2 in. knockout, and cULus Listing in a single, purpose-built component. Choosing RACO means specifying hardware built to help installations pass inspection and perform reliably over the life of the electrical system.