Orbit D4RB 4" Drawn Octagon Steel Box, 1-1/2" Deep, Pack of 100

Orbit D4RB-5075 4" Drawn Octagon Steel Box, 1-1/2" Deep with 1/2" & 3/4" KO

The Orbit D4RB-5075 is a 4" drawn octagon steel box built for standard residential and commercial electrical rough-in work. Formed from steel in a 1-1/2" deep drawn construction, this 4" octagon box is designed to house junction connections, ceiling fixture outlets, and general wiring splices behind wall and ceiling surfaces. The box comes equipped with combination 1/2" and 3/4" knockouts (KO), giving installers the flexibility to bring in conduit or cable connectors in either size without needing a separate reducing washer. As a drawn (one-piece, seamless) steel box rather than a welded or stamped-and-assembled unit, the D4RB-5075 offers a smooth interior profile that helps protect conductor insulation during pulling and termination. This 4" octagon steel box is a staple in the Orbit electrical box lineup and is sized to accept standard octagon box covers, plaster rings, and fixture mounting hardware commonly used across the trade.

Key Features

• Trade Size: 4" octagon footprint sized for standard junction and fixture outlet applications.
• Box Depth: 1-1/2" deep drawn body provides adequate wiring space for splices and connectors within the enclosure.
• Durable Construction: Drawn steel, one-piece body construction for a smooth, seamless interior that helps protect conductors during installation.
• Combination Knockouts: Built-in 1/2" and 3/4" KO openings allow installers to select the connector size that matches the conduit or cable run without extra reducing washers.
• Octagon Shape: Standard 4" octagon (4O) form factor compatible with common octagon covers, plaster rings, and ceiling fixture hardware used in residential and light commercial wiring.

Technical Specifications

• Box Type: 4" Drawn Octagon Steel Box
• Depth: 1-1/2"
• Diameter: 4" (4O)
• Knockouts: 1/2" & 3/4" combination KO
• Material: Steel, drawn construction

Typical Applications

• Ceiling Fixture Outlet Boxes
• Junction and Splice Enclosures
• Residential Wiring Rough-In
• Commercial Electrical Construction
• Conduit and Cable Termination Points

Why Orbit?

Orbit's drawn steel octagon boxes are built with one-piece, seamless construction that gives installers a smooth interior and reliable, consistent sizing across every unit. The 1/2" and 3/4" combination knockouts on the D4RB-5075 give electricians flexibility on the job site, reducing the need for extra fittings and speeding up rough-in work. Choose Orbit for dependable, code-familiar steel box construction on residential and commercial electrical projects.