Orbit 4 in W X 4 in H 2-1/8 in Deep 4S Square Steel Box NM Clamp, Bracket 4SDB-NM-B

Product Overview

The Orbit 4SDB-NM-B is a welded 4S square steel electrical box sized 4 in wide × 4 in high with a 2-1/8 in deep body and integrated NM clamp bracket.

Designed for commercial and residential rough‑ins, the box provides 30.3 cu in of capacity and is constructed from 16‑gauge galvanized sheet steel for durability in dry locations.

Key Features

• 4 in W x 4 in H front opening; 2-1/8 in depth
• 30.3 cubic inches capacity
• NM clamp bracket for securing nonmetallic (NM) cable
• Welded 16‑gauge galvanized sheet steel construction
• Intended for ceiling, wall, stud, or rough‑in installations
• UL and RoHS listed

Function and typical uses

The Orbit 4SDB-NM-B is a 4S square electrical box intended for use as a switch, receptacle, or lighting fixture rough‑in or replacement box. Its size and capacity make it suitable for commercial electrical rough‑ins, new construction projects, facility maintenance, and contractor stock.

• Common applications: switch and receptacle installations, lighting fixture boxes, wall and ceiling rough‑ins
• Target users: electricians, contractors, and facility maintenance teams

Dimensions and cubic capacity

This SKU measures 4 inches wide by 4 inches high with a 2-1/8 inch deep body and provides 30.3 cubic inches of internal volume.

• Front opening: 4 in W x 4 in H
• Depth: 2-1/8 in
• Cubic capacity: 30.3 cu in — use this value when calculating conductor fill per applicable electrical code

Material and finish

The box is manufactured from 16‑gauge sheet steel with a galvanized finish and welded construction for rigidity.

• Material: 16‑gauge galvanized sheet steel
• Construction: welded steel box body

Mounting, clamp type, and installation notes

Orbit 4SDB-NM-B includes an NM clamp bracket for securing nonmetallic (NM) cable. The unit is intended for mounting in walls, ceilings, studs, or as a standard rough‑in box.

• Clamp type: NM clamp, bracket
• Mounting types: ceiling, wall, stud, or general rough‑in installations
• Installation should be performed by qualified electrical personnel and verified against local electrical code and project drawings

Certifications and location rating

The product carries UL and RoHS markings and is rated for dry‑location use.

• Certifications: UL, RoHS
• Location rating: Dry location

Before You Order

Confirm the model number, box size, depth, knockout pattern, and clamp type to ensure the 4SDB-NM-B meets project requirements. Installation must comply with local electrical codes and be performed by qualified personnel.

• Verify model/SKU: 4SDB-NM-B
• Confirm required cubic capacity for conductor fill calculations
• Check that a dry‑location, galvanized steel box is appropriate for the application

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Orbit 4 in W X 4 in H 2-1/8 in Deep 4S Square Steel Box NM Clamp, Bracket 4SDB-NM-B. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.