Appleton 2520 Flat Blank 4-square Cover

Product Description

The APPLETON 2520 is a flat blank cover plate designed for use with 4-square electrical boxes. It provides a flush, closed termination for junction or outlet boxes that do not require a device opening. The cover is constructed from stainless steel, offering corrosion resistance suitable for damp, wet, or industrial environments. Licensed electricians and maintenance electricians install this cover as a code-compliant means of closing unused or decommissioned box locations. At 0.12 pounds and a low-profile 0.06-inch thickness, it installs cleanly without protruding from the wall or enclosure surface.

This flat blank cover is appropriate for residential, commercial, and light industrial electrical installations where 4-square boxes are used for junction or pull-box applications. It is commonly installed in exposed conduit systems, utility rooms, mechanical spaces, and other locations where a finished device-free box closure is required. The stainless steel construction makes it a practical choice in food service, marine-adjacent, or high-humidity environments where standard steel covers may corrode.

Key Features

• Flat blank design closes 4-square boxes with no device opening
• Stainless steel construction resists corrosion in damp and industrial environments
• Low-profile at 0.06 inches thick for a flush, clean finish
• Lightweight at 0.12 pounds for easy single-hand installation
• Footprint of 7.4 inches by 5.0 inches fits standard 4-square box dimensions

Compatibility

Designed as an OEM-style replacement or standard cover for 4-square electrical junction boxes in commercial and residential conduit installations.

Installation Notes

Installation is performed by a licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the circuit before opening any electrical box. Secure the cover with the appropriate machine screws for the box type; do not overtighten fasteners on stainless steel covers to avoid thread galling. Verify the box is properly grounded and all conductors are capped or terminated before closing.