Orbit 4SDB Series Square Deep Box, Welded Steel, 1" KO

Orbit 4SDB Series Square Deep Box, Welded Steel, 1" KO

The Orbit 4SDB Series Square Deep Box is a 4" square, 2-1/8" deep welded steel electrical box designed to provide extra interior volume for junction, outlet, and switch installations where standard-depth boxes fall short on fill capacity. Available in the 4SDB-75 and 4SDB-100 models, the 4SDB Series is built with a fully welded body for structural integrity and long-term durability, and arrives pre-punched with a 1" knockout (KO) to simplify conduit entry and reduce field labor. This deep box family is engineered to meet the demands of commercial, industrial, and residential electrical rough-in work where a dependable, code-friendly enclosure is required for device and wire management.

Key Features

• Box Size: 4" square footprint for standard device and junction box applications, shared across the 4SDB-75 and 4SDB-100 models.
• Deep Profile: 2-1/8" depth provides additional interior volume for wire fill and device clearance compared to shallow boxes.
• Welded Construction: Fully welded steel body for added rigidity and strength versus seamed or folded boxes.
• Knockout: Includes a 1" KO for streamlined conduit entry during installation.
• Series Consistency: Part of the Orbit 4SDB Series, engineered for compatibility with standard 4" square box covers, rings, and accessories.
• Model Range: Choose from the 4SDB-75 and 4SDB-100 model options within the series to match project requirements.

Technical Specifications

• Box Shape: 4" Square
• Depth: 2-1/8"
• Construction: Welded
• Knockout Size: 1"
• Series: 4SDB
• Available Models: 4SDB-75, 4SDB-100

Typical Applications

• Commercial and Industrial Electrical Rough-In
• Junction and Pull Box Installations
• Switch and Outlet Device Mounting
• Conduit Wiring Systems Requiring Extra Box Depth
• New Construction and Renovation Projects

Why Orbit?

Orbit's 4SDB Series deep box is built with a welded steel body to deliver a sturdy, dependable enclosure for demanding electrical installations across both the 4SDB-75 and 4SDB-100 models. The added 2-1/8" depth and pre-installed 1" KO make this box family a practical, labor-saving choice for electricians who need extra room and simplified conduit entry without sacrificing durability. Whether specifying the 4SDB-75 or 4SDB-100, contractors get the same welded steel construction and 4" square footprint that has made the 4SDB Series a dependable choice for rough-in electrical work.