Orbit Industries 5SDB-75/100-FB 4-11/16 Square Box Flat Bracket

Product Description

The ORBIT INDUSTRIES 5SDB-75/100-FB is a 4-11/16 inch square (5S series) steel electrical box measuring 2-1/8 inches deep, welded with a flat bracket and pre-punched knockouts sized at 3/4 inch and 1 inch. This box is designed for electrical rough-in installations where a larger-volume square box is required to accommodate multiple conductors, devices, or splice connections. The welded flat bracket construction simplifies attachment to framing during new construction or retrofit work. Electricians use this box as a primary junction or device box where the 4-11/16 inch square footprint provides greater fill capacity than a standard 4 inch square box.

This box is suited for commercial and residential electrical installations requiring a 5S series square box with an integrated flat bracket. It is a common choice in wall and ceiling rough-in work where the installer needs pre-knocked conduit entry points at 3/4 inch and 1 inch sizes alongside a welded bracket for direct framing attachment. The flat bracket configuration is typical in stud-mounted applications and is compatible with standard 5S mud rings and plaster rings for finishing at the device level.

Key Features

• 4-11/16 inch square (5S) box provides high conductor fill capacity
• 2-1/8 inch depth accommodates wiring and device connections in tight rough-in spaces
• Pre-punched knockouts at 3/4 inch and 1 inch for rigid or EMT conduit entry
• Welded construction with integrated flat bracket for secure framing attachment
• Compatible with standard 5S series mud rings and extension rings

Compatibility

Designed as an OEM-style replacement or new-installation 5S series square electrical box compatible with standard 4-11/16 inch square mud rings, extension rings, and covers.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit at the panel and verify with a voltage tester before working inside or near the box. Secure all conduit connections at the knockout openings with listed conduit connectors before pulling conductors. Do not exceed the calculated box fill capacity as defined by NEC Article 314 for the conductors and devices being installed.

Technical Specifications

• Box Size: 4-11/16 inches square (5S series)
• Depth: 2-1/8 inches
• Knockout Sizes: 3/4 inch and 1 inch
• Bracket Type: Flat bracket (FB), welded

Standard Information

• Brand: ORBIT INDUSTRIES
• Manufacturer Part Number: 5SDB-75/100-FB