Thomas Betts 329-P Twist-on Wire Connector Gray 100 Pack

Product Description

The THOMAS BETTS 329-P is a standard twist-on wire connector rated for 300 volts and designed for making secure, insulated splices in copper conductors. Built with corrosion-resistant materials and finished in gray, this connector provides reliable performance in residential, commercial, and light industrial wiring applications. The 329-P arrives in a 100-piece package, making it a practical choice for electricians stocking a service van or working a multi-outlet rough-in. Its twist-on design requires no tools for installation and delivers consistent, code-appropriate wire terminations in junction boxes, panels, and fixture connections.

The 329-P is suited for general-purpose electrical work where a UL Listed, corrosion-resistant connector is required. Typical applications include branch circuit splices in junction boxes, fixture hook-ups, and device connections in both new construction and retrofit work. The gray color coding helps identify conductor combinations at a glance, which is useful when multiple connector sizes are in use on the same job site.

Key Features

• 300-volt rating for standard branch circuit and fixture wiring
• Corrosion-resistant construction for durability in damp or humid environments
• Gray color for easy visual identification on multi-connector installations
• No-tool twist-on installation for fast, repeatable terminations
• UL Listed and RoHS compliant
• Sold in a 100-piece package

Compatibility

Designed as an OEM-style replacement and general-use twist-on wire connector suitable for standard copper conductor splices in residential and commercial electrical installations.

Installation Notes

Installation is performed by licensed electricians in accordance with NEC requirements for wire splicing and termination. Always de-energize the circuit at the breaker and verify absence of voltage with a meter before making or breaking any connections. Strip conductors to the correct length per the connector manufacturer guidelines, twist the connector clockwise until firm resistance is felt, and tug-test each conductor to confirm seating. Do not use on aluminum conductors unless the connector is specifically rated for aluminum.