Thomas & Betts 3213 One-Piece Non-Metallic Plastic Knockout Bushing

Thomas & Betts 3213 One-Piece Non-Metallic Plastic Knockout Bushing, 1.734 Diameter

The Thomas & Betts 3213 is a one-piece, non-metallic knockout bushing engineered to seal and protect a standard 1.734 diameter knockout opening in electrical panels, enclosures, and cabinets. Molded from durable plastic, this single-piece bushing snaps directly into the knockout hole without additional hardware or tools. Its non-metallic construction offers a lightweight, corrosion-resistant alternative to traditional metal knockout bushings, making it well suited for a wide range of electrical enclosure applications. Contractors and electricians rely on knockout bushings like the Thomas & Betts 3213 to deliver a clean, finished opening that helps protect conductors and cabling as they pass through metal enclosures.

Key Features

• Knockout Size: Sized to fit a 1.734 diameter knockout opening for a secure, precise fit in panels and enclosures.
• Non-Metallic Construction: Molded from durable plastic that will not rust, corrode, or chip like traditional metal bushings.
• One-Piece Design: Single-piece body snaps into place for fast, tool-free installation and removal.
• Smooth Bore: Rounded, smooth edges help protect conductors and cable jacketing from abrasion at the knockout opening.
• Lightweight Build: Plastic construction reduces overall enclosure weight compared to metallic alternatives.
• Snap-In Installation: Designed for quick, tool-free snap-in placement that saves installation time on the job site.
• Finished Opening: Provides a clean, finished appearance at knockout locations on panels and cabinets.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Electrical Panel and Enclosure Knockout Openings
• Conduit and Cable Pass-Through Protection
• Load Center and Panelboard Enclosures
• Junction Box and Cabinet Openings
• Commercial and Industrial Electrical Installations
• Renovation and New Construction Wiring Projects

Why Thomas & Betts?

Thomas & Betts is a trusted name in electrical construction products, and the 3213 one-piece, non-metallic plastic knockout bushing reflects that reputation with its durable, tool-free design. Built for reliable performance in panels and enclosures, this bushing helps electrical professionals complete installations efficiently while protecting conductors at the knockout opening. Choosing the Thomas & Betts 3213 gives contractors a lightweight, corrosion-resistant option, sized for a 1.734 diameter opening, for finishing knockout locations on the job.