Raco 146-RAC 4 in Octagon Electrical Box Nm Clamps

Product Description

The RACO 146-RAC is a 4-inch drawn octagon electrical box with a depth of 1.5 inches, designed for residential and light commercial wiring applications. Constructed from pre-galvanized steel, it provides durable corrosion resistance in standard interior installations. The box ships with NM (nonmetallic sheathed cable) clamps already integrated, allowing direct cable entry without separate fittings. Licensed electricians install this box as a junction point or fixture mounting location in ceiling and wall assemblies. Its drawn construction gives it a one-piece body without seams, adding mechanical strength.

This octagon box is suited for residential new construction and retrofit wiring where nonmetallic cable is the primary wiring method. It is commonly installed in ceiling applications to support light fixtures or serve as a junction box. The 1.5-inch depth accommodates standard wire fill requirements for typical branch-circuit wiring. The included NM clamps secure cable entries without the need for additional knockout fittings, making rough-in work more efficient in wood-framed residential structures.

Key Features

• 4-inch octagon form factor fits standard octagon box openings and mud rings
• 1.5-inch depth supports NEC wire fill for typical residential branch circuits
• Pre-galvanized steel construction provides corrosion resistance for interior use
• Drawn one-piece body eliminates seams for added mechanical integrity
• Integrated NM clamps accept nonmetallic sheathed cable without separate fittings
• Made in the United States

Compatibility

Designed as an OEM-style replacement and standard-fit solution for 4-inch octagon box applications in residential and light commercial electrical installations where nonmetallic sheathed cable wiring methods are used.

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 and verify the absence of voltage before working inside the box. Secure the box to framing members per NEC mounting requirements, and do not exceed the calculated wire fill capacity for the box volume. NM cable should be clamped within the distance specified by NEC to the box entry point.