Thomas & Betts 1453 1" Non-Metallic Locking Knockout Plug, Rigid/IMC Conduit

Thomas & Betts 1453 1" Non-Metallic Locking Knockout Plug, Rigid/IMC Conduit

The Thomas & Betts 1453 is a 1" non-metallic locking plug engineered to seal unused knockout openings on Rigid and IMC conduit systems and electrical enclosures. Molded from durable non-metallic material, this locking plug threads into standard 1" knockout openings to close off unused ports, helping keep panels, junction boxes, and enclosures clean, organized, and code-ready. Because the plug body is non-metallic, it resists corrosion and will not conduct electricity, giving installers a dielectric alternative to metal knockout seals wherever a solid, non-conductive closure is preferred. Sized specifically for 1" trade-size openings, the 1453 is a straightforward drop-in solution for electricians and contractors working on Rigid and IMC conduit systems in commercial and industrial settings.

Key Features

• Trade Size: 1" sizing fits standard 1" knockout openings on Rigid and IMC conduit bodies, junction boxes, and enclosures for a direct, correctly sized fit without adapters.
• Non-Metallic Construction: Molded from durable non-metallic material, the 1453 resists corrosion and will not conduct electricity, offering a practical alternative to metallic knockout seals where a non-conductive plug is preferred.
• Locking Plug Design: The locking design seats into the knockout opening and holds in place once installed, helping keep the opening sealed against dust, debris, and moisture intrusion at the enclosure.
• Conduit System Compatibility: Engineered for use with Rigid and IMC conduit systems, the 1453 integrates cleanly with metallic raceway installations while itself remaining non-metallic.
• Lightweight, Low-Maintenance Material: The non-metallic body is lighter than comparable metal knockout plugs and does not require plating, painting, or coating to resist corrosion.
• Simple Installation: The plug installs directly into the 1" knockout opening without special tools, helping speed up panel, box, and enclosure finishing work.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Sealing Unused Knockout Openings on Conduit Bodies, Boxes, and Enclosures
• Rigid Conduit Installations in Commercial and Industrial Facilities
• IMC (Intermediate Metal Conduit) Installations
• Electrical Panelboards, Junction Boxes, and Pull Boxes
• New Construction and Electrical Retrofit Projects
• General Conduit System Maintenance and Finishing Work

Why Thomas & Betts?

Thomas & Betts designs conduit fittings and accessories, including the 1453 non-metallic locking plug, to give electrical contractors a dependable way to close out unused knockouts on Rigid and IMC conduit systems. The non-metallic, corrosion-resistant construction supports long-term performance without introducing an additional conductive metal component into the installation. Choosing Thomas & Betts for conduit system accessories helps ensure a consistent, correctly sized fit and dependable seal across your electrical installation.