Thomas & Betts 1440 1/2" Threaded Malleable Iron Panel Connector Extension, Pack of 100

Thomas & Betts 1440 1/2" Threaded Malleable Iron Panel Connector Extension

The Thomas & Betts 1440 is a 1/2" Panel Connector Extension machined from durable Malleable Iron and engineered to extend the reach of a threaded panel connector through a thick panel wall, cabinet, or enclosure. When panel thickness exceeds the length of a standard connector, this extension gives electricians the added depth needed to properly seat the locknut and complete a secure conduit-to-panel termination. Sized to match standard 1/2" threaded panel connectors and conduit hardware, the Thomas & Betts 1440 threads directly onto existing connector hardware without special tools. Built to Thomas & Betts standards for fit and function, it is a dependable solution for maintaining secure conduit connections on panels, cabinets, and enclosures where extra reach is required.

Key Features

• Trade Size: 1/2" sizing matches standard panel connectors and conduit hardware for straightforward, drop-in installation without adapters.
• Durable Construction: Malleable Iron construction delivers the strength, impact resistance, and long-term durability needed for demanding panel, cabinet, and enclosure applications.
• Extension Design: Purpose-built to extend a panel connector's reach through thicker panel walls, giving the locknut enough exposed thread to fully engage and lock down the connection.
• Threaded Compatibility: Pairs directly with standard 1/2" threaded panel connectors to complete a secure, properly seated conduit-to-panel termination.
• Reliable, Consistent Fit: Helps maintain a tight, secure conduit connection on panels, cabinets, and enclosures where added connector depth is required.
• Professional-Grade Fitting: Sized and built to Thomas & Betts standards for consistent fit and function in commercial and industrial electrical work.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Panelboard and Enclosure Conduit Terminations
• Extending Panel Connectors Through Thick Panel Walls
• Commercial and Industrial Electrical Installations
• Conduit and Raceway Systems
• Cabinet and Enclosure Wiring
• Renovation and New Construction Panel Wiring

Why Thomas & Betts?

Thomas & Betts builds the 1440 Panel Connector Extension from Malleable Iron for the strength and reliability professional electricians rely on in the field. This 1/2" threaded extension helps ensure panel connectors seat and lock down securely even on thicker panels or enclosure walls, supporting dependable, properly terminated conduit installations across commercial, industrial, and renovation projects. Consistent 1/2" sizing paired with rugged Malleable Iron construction gives electricians a simple way to solve thick-panel termination challenges without swapping out an entire connector assembly.