Orbit 4 in Square 1-1/2 in Deep 4S Square Steel Box NM Clamp MS Bracket 4SB-NM-MS

Product Overview

The Orbit 4SB-NM-MS is a welded 4S square steel electrical box with a 4 in x 4 in x 1-1/2 in footprint and a 21 cu in internal volume. It ships with an NM clamp and an MS bracket.

Made from 16 gauge galvanized sheet steel and listed to UL (UL File E227970), it is specified for dry-location commercial switch, receptacle, fixture, and junction rough-in applications.

Key Features

• 4 in square welded box, 1-1/2 in depth (4 in W x 4 in H x 1-1/2 in)
• 21 cubic inch internal volume (use for box-fill calculations)
• Includes NM clamp for nonmetallic cable entry
• Includes MS bracket for mounting support
• 16 GA galvanized sheet steel construction
• UL listed (UL File E227970) and RoHS compliant; rated for dry locations

Function and typical uses

This 4SB-NM-MS box is intended for commercial rough-in use for switches, receptacles, fixtures, and junctions where a 4S square box is specified. It is suitable for new construction and contractor stock in dry-location installations.

• Common uses: switch and receptacle rough-in, fixture and junction box, general-purpose junction box in commercial settings
• Select devices and fixtures appropriate for the box's 21 cu in capacity

Dimensions and volume

The box measures 4 in by 4 in with a 1-1/2 in depth, providing 21 cubic inches of internal volume for conductor and device accommodation.

• Overall dimensions: 4 in W x 4 in H x 1-1/2 in depth
• Internal volume: 21 cu in — use for box-fill calculations per applicable code

Mounting, clamp and bracket details

The unit is supplied with an NM clamp for nonmetallic cable retention and an MS bracket intended to assist mounting and accessory support. Verify mounting method and load requirements for your specific installation.

• Included NM clamp for nonmetallic cable entries
• MS bracket provided for mounting and accessory support
• Verify mounting and support needs for the specific device or fixture you will install

Materials and certifications

Fabricated from 16 gauge galvanized sheet steel with welded construction, the product is listed to UL (UL File E227970) and noted as RoHS compliant. It is rated for dry-location use.

• Material: 16 GA sheet steel
• Finish: Galvanized
• Certifications: UL (UL File E227970), RoHS
• Location rating: Dry location

Applications and installation notes

Confirm model details and local electrical code requirements before ordering. Installation should be performed by qualified electrical personnel using applicable codes and practices.

• Typical installations: new construction commercial wall and ceiling wiring, contractor stock for service and maintenance
• Before ordering: verify knockout pattern, device opening, clamp type, bracket style, and box-fill needs
• Installer should confirm grounding, box-fill calculations, and mounting/support adequacy

Before You Order

Confirm the model number, depth, knockout pattern, clamp type, bracket style and device opening before ordering; verify box-fill needs and local electrical code requirements.

• Installation should be completed by qualified electrical personnel.
• Verify grounding, box-fill calculations, and that mounting/support provisions meet the needs of the intended device or fixture.

Ordering from Lumera Electric

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