Mulberry 30333 Powdered Die-Cast Aluminum Box Extension, 4-Inch x 1-1/2-Inch

Mulberry 30333 Powdered Die-Cast Aluminum Box Extension, 4-Inch x 1-1/2-Inch

The Mulberry 30333 Box Extension is a powdered die-cast aluminum extension ring designed to add extra depth and volume to existing electrical boxes. When device wiring, splices, or additional conductors leave a standard box too shallow for code-compliant fill, this extension mounts to the existing enclosure to increase usable space without requiring a full box replacement. Measuring 4-Inch x 1-1/2-Inch, the Mulberry 30333 adds 15.3-Cubic-Inch of interior capacity, giving installers extra room to work while keeping the original box in place. Constructed from rugged powdered die-cast aluminum, this extension is built to withstand the wear and tear of everyday job-site installation, whether in new construction or renovation work.

Key Features

• Trade Size: 4-Inch x 1-1/2-Inch dimensions provide the added depth needed to bring a shallow electrical box up to code-compliant volume.
• Volume Capacity: 15.3-Cubic-Inch of additional interior space accommodates extra wiring, devices, and conductor fill.
• Durable Construction: Powdered die-cast aluminum body offers corrosion resistance and long-term durability for demanding installation environments.
• Box Extension Function: Mounts directly to existing electrical boxes, extending usable depth without the cost or labor of a full box replacement.
• Lightweight Aluminum Build: Die-cast aluminum construction keeps the extension lightweight for easier handling while maintaining structural strength.
• Versatile Fit: Compatible with standard electrical box configurations that require added depth for device or wiring clearance.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Electrical Box Depth and Volume Extension
• Commercial and Industrial Electrical Installations
• Junction Box and Device Box Modifications
• New Construction and Renovation Projects
• Conduit Routing and Wiring Device Clearance
• Panel and Enclosure Volume Adjustments

Why Mulberry?

Mulberry's 30333 Box Extension is manufactured from powdered die-cast aluminum, giving it the strength and corrosion resistance electrical professionals expect from a component that stays in the wall or panel for the life of the installation. With 4-Inch x 1-1/2-Inch dimensions and 15.3-Cubic-Inch of added interior capacity, it provides a practical, straightforward way to bring an existing electrical box into compliance without a full replacement. Choose Mulberry for electrical box accessories built to perform reliably on demanding commercial and industrial job sites.