Orbit 4 in Square 1-1/2 in Deep 4S Square Steel Box 1/2 in Knockouts 4SB-50

Product Overview

The Orbit 4SB-50 is a welded 4S square steel electrical box intended for commercial switch, receptacle, fixture, and junction box rough-in.

It measures 4 in by 4 in by 1-1/2 in, provides 21 cu in of box volume, and features 1/2 in knockouts in galvanized 16 GA construction with a dry-location rating.

Key Features

• 4 in square welded box, 1-1/2 in depth
• 21 cubic inches of internal volume
• 1/2 in knockouts
• 16 gauge galvanized steel construction
• Listed markings: UL and RoHS (references UL File E227970)

What this box is used for

The Orbit 4SB-50 is intended for commercial electrical rough-in as a switch, receptacle, fixture, or junction box where a 4 in square 4S box is specified for wall or ceiling wiring and device mounting.

• Switch and receptacle rough-in
• Fixture and junction box applications in commercial wiring
• Common item for contractor stock and new construction rough-in

Dimensions and internal volume

Confirm dimensional fit and box-fill requirements before installation; the listed physical size and volume determine how many conductors and devices can be housed.

• Overall dimensions: 4 in W x 4 in H x 1-1/2 in
• Internal volume: 21 cu in

Materials, finish and ratings

Manufactured from 16 gauge sheet steel with a galvanized finish and welded construction. The product listing references UL and RoHS markings and cites UL File E227970. The stated location rating is dry location.

• Material: 16 GA sheet steel
• Finish: Galvanized
• Manufacturing: Welded
• Location rating: Dry location
• Certifications/markings: UL, RoHS; UL File E227970

Knockouts and mounting configuration

The 4SB-50 includes 1/2 in knockouts and is described for standard 4S square box rough-in mounting used in common commercial installations.

• Knockouts: 1/2 in
• Mounting type: 4S square box rough-in

Ordering and installation considerations

Verify the model, depth, knockout pattern, and capacity meet your project needs prior to ordering. Follow local electrical code requirements during installation.

• Confirm model 4SB-50 and that dimensions (1-1/2 in depth) and 21 cu in volume match your device and conductor requirements
• Perform box-fill calculations and ensure proper grounding as required by code
• Installation should be performed by qualified personnel in accordance with local electrical code

Before You Order

Confirm the model number and quantity required and verify the listed depth, knockout pattern, and box volume meet your device, conductor, and code requirements.

• Ensure box volume (21 cu in) satisfies box-fill for all conductors and devices
• Verify dimensions and knockout pattern match the intended installation

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 1/2 in Knockouts 4SB-50. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.