4" Electrical Box Cover, Steel, Flat

Raco 752 – 4" Square Flat Steel Electrical Box Cover

The Raco 752 is a 4-inch square flat steel cover designed for use with standard 4" square electrical outlet boxes. Constructed from durable galvanized steel, this blank cover plate is intended to enclose unused junction boxes or protect internal terminations in exposed or concealed installations. It is suitable for both commercial and residential wiring systems, including new construction and retrofit applications.

The cover features angled mounting slots to accommodate box misalignment up to 12°, aiding in proper alignment without field modification. It meets NEC code requirements for device box closures and is listed for use in grounding applications when installed with grounding screws and approved methods.

Product Features

• ✅ Galvanized Steel Construction – Provides mechanical protection and corrosion resistance in finished and unfinished environments.
• ✅ Flat Profile – Flush design suitable for use in drywall, masonry, or surface-mounted enclosures.
• ✅ Offset Mounting Slots – Allows adjustment for up to 12° of box misalignment for accurate alignment and secure fastening.
• ✅ UL Listed – Meets applicable UL 514A and NEC requirements for junction box closures.
• ✅ Universal Fit – Compatible with most 4" square boxes with 1/2" or 3/4" knockouts.

Technical Specifications

• Catalog Number: 752
• Material: Galvanized Steel
• Dimensions: 4" x 4"
• Mounting Holes: Angled Slots (up to 12° adjustment)
• Application: Blank cover for 4" square electrical boxes
• Compliance: UL Listed, NEC Compliant

Installation Requirements

Cover should be installed using appropriate fasteners (typically included with the box or ordered separately). Ensure secure fitment to avoid movement or exposure of conductors. When grounding continuity is required, use approved grounding screws and verify continuity with the box. Do not over-torque fasteners as this may distort the plate or compromise fit.

Applications

Intended for use in general-purpose junction box closures, blanking of unused boxes, or protecting internal wiring terminations in commercial, industrial, and residential construction. The Raco 752 is often specified for surface raceway systems, conduit-fed boxes, and as part of prefabricated wiring assemblies.