Crouse-Hinds TP320 Steel Deep Outlet Box, 4-Inch x 4-Inch x 2-1/8-Inch

Crouse-Hinds TP320 Steel Deep Outlet Box, 4-Inch x 4-Inch x 2-1/8-Inch

The Crouse-Hinds TP320 is a steel deep outlet box measuring 4-Inch x 4-Inch x 2-1/8-Inch with a generous 21.5-cubic-inch interior capacity, engineered to house wiring devices, splices, and conduit connections in commercial and industrial electrical systems. Built from durable steel, this deep-pattern box gives electricians additional wire fill room compared to standard-depth boxes, making it well suited for installations with multiple conductors, device combinations, or larger conduit entries. As a Crouse-Hinds product, the TP320 reflects the rugged construction standards professionals expect for demanding electrical rough-in work. The deep 2-1/8-Inch profile is especially valuable on jobs where box fill calculations are tight, giving installers the breathing room needed to meet code while keeping terminations clean and accessible. Electricians frequently choose deep boxes like the TP320 over standard-depth alternatives whenever a device box will carry more than a couple of conductors, a combination device, or additional splices, since the extra depth directly translates into usable box fill volume without changing the familiar 4-Inch x 4-Inch mounting footprint that matches standard device rings, mud rings, and covers already stocked on most job sites.

Key Features

• Box Dimensions: 4-Inch x 4-Inch x 2-1/8-Inch provides a standard footprint with extra depth for easier wire management and device installation.
• Interior Capacity: 21.5-cubic-inch volume accommodates additional conductors, devices, and connections versus shallower box styles.
• Durable Construction: Steel body construction delivers the strength and durability required for demanding commercial and industrial electrical rough-in applications.
• Deep Outlet Box Design: The 2-1/8-Inch depth reduces crowding inside the box, simplifying pigtailing, device termination, and code-compliant fill calculations.
• Versatile Mounting: The 4-Inch x 4-Inch footprint is a widely used industry-standard size, compatible with common device rings, mud rings, and covers.
• Professional-Grade Reliability: Manufactured by Crouse-Hinds, a trusted name in electrical distribution products for demanding job-site conditions.

Technical Specifications

• Product Type: Outlet Box
• Material: Steel
• Dimensions: 4-Inch x 4-Inch x 2-1/8-Inch
• Interior Capacity: 21.5 Cubic Inches

Typical Applications

• Commercial and Industrial Electrical Rough-In
• Junction and Splice Point Installations
• Device Boxes for Switches, Receptacles, and Combination Devices
• Conduit System Wiring and Termination Points
• New Construction and Renovation Electrical Projects

Why Crouse-Hinds?

Crouse-Hinds builds electrical enclosures and boxes to withstand the rigors of professional installation environments. The TP320's steel construction and deep 2-1/8-Inch profile give electricians the extra interior room needed for cleaner wire management and easier device installation, all backed by the reliability that has made Crouse-Hinds a trusted choice for code-compliant electrical work on both new construction and renovation projects. For electrical contractors who need a dependable, code-compliant deep outlet box that fits standard 4-Inch x 4-Inch openings while offering room to work, the TP320 remains a practical, job-site-proven choice.