Minerallac 90062 2-1/2" Pre-Galvanized 3-Piece Knock Out Seal

Minerallac 90062 2-1/2" Pre-Galvanized 3-Piece Knock Out Seal

The Minerallac 90062 2-1/2" Pre-Galvanized 3-Piece Knock Out Seal is designed to close unused conduit knockouts in electrical panelboards, enclosures, junction boxes, and other metal boxes where a knockout has been removed but is not being used for conduit entry. Sized specifically for 2-1/2" knockout openings, this three-piece seal is manufactured from pre-galvanized steel, giving it corrosion resistance suitable for demanding commercial and industrial electrical environments. The simple three-piece construction allows electricians and maintenance crews to quickly install a secure, snug-fitting seal that helps keep an enclosure closed and protected from dust, debris, and moisture intrusion through an open knockout.

Key Features

• Trade Size: Sized to fit 2-1/2" knockout openings precisely, ensuring a secure fit in electrical boxes, panelboards, and enclosures without gaps.
• Durable Construction: Manufactured from pre-galvanized steel, offering strong resistance to corrosion and rust for long-term reliability in demanding environments.
• 3-Piece Design: The three-piece knock out seal assembly is easy to install by hand, fitting together to close the knockout securely without special tools.
• Finish: The pre-galvanized finish provides an added layer of protection against moisture, humidity, and general wear over the life of the installation.
• Enclosure Protection: Helps maintain a closed, code-compliant enclosure by sealing unused knockout openings against dust, debris, insects, and moisture intrusion.
• Time-Saving Installation: The straightforward three-piece design speeds up electrical rough-in and maintenance work by eliminating the need for cutting or fabricating custom covers.
• Versatile Application: Suitable for use across panelboards, junction boxes, pull boxes, and other electrical enclosures wherever a 2-1/2" knockout needs to be closed.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Electrical Panelboards and Load Centers
• Junction Boxes and Pull Boxes
• Commercial and Industrial Electrical Enclosures
• Conduit and Raceway Systems
• New Construction and Retrofit Electrical Work
• Maintenance and Enclosure Repair Projects

Why Minerallac?

Minerallac builds electrical hardware like the 90062 Knock Out Seal with durable, pre-galvanized steel construction designed to stand up to demanding job-site conditions. This straightforward three-piece design gives electricians and maintenance teams a dependable way to close unused knockouts and keep enclosures protected from dust, debris, and moisture, making it a practical, code-conscious choice for professional electrical installations, panel upgrades, and enclosure repairs.