Orbit 3-1/2 in Drawn Octagon Steel Box 1-1/2 in Deep 3RB-50

Product Overview

The Orbit 3RB-50 is a drawn octagon steel electrical box measuring 3-1/2 inches across with a 1-1/2 inch depth. It is constructed of galvanized steel and rated for dry-location box and cover use.

Commonly stocked for rough-in installations, ceiling fixture support (where permitted by local code and fixture instructions), and general contractor supply for dry interior projects.

Key Features

• 3-1/2 in drawn octagon shape
• 1-1/2 in depth
• Galvanized steel construction
• Rated for dry locations
• Listed with UL and RoHS as noted in product data

Typical applications

This octagon box is used for dry-location electrical box and cover work. Typical uses include octagon box rough-in, ceiling fixture mounting where permitted by the fixture instructions and local code, branch-circuit terminations in dry interiors, new construction, and contractor stock for maintenance and repairs.

• Rough-in for ceiling fixtures and light-support hardware when compatible with fixture instructions and local code
• Dry interior residential and commercial installations
• General-purpose branch circuit and device entry work

Size and shape

Dimensions: 3-1/2 inch drawn octagonal footprint with a 1-1/2 inch depth. This size matches standard octagon covers and many lighting accessory mounting patterns intended for 3-1/2 inch octagon boxes.

• Footprint: 3-1/2 in octagonal
• Depth: 1-1/2 in

Construction and finish

Constructed from galvanized steel. The galvanized finish is intended for basic corrosion resistance appropriate for dry interior locations.

• Material: Steel
• Finish: Galvanized

Installation notes

Verify box size, required depth, knockout configuration, wall or ceiling finish thickness, and mounting method before ordering and installing. This product is specified for dry locations. Use a qualified electrician for field wiring, grounding, device mounting, and final inspection to ensure compliance with local electrical codes.

• Location rating: Dry location
• Mounting type: Box mount
• Certifications shown in product data: UL, RoHS
• Confirm compatibility with covers, fixtures, and conduit fittings prior to installation

Before You Order

Verify that a 3-1/2 in octagon box with 1-1/2 in depth and galvanized finish meets your fixture, cover, and local code requirements.

• Check knockout locations and required fittings for your installation
• Confirm wall or ceiling finish thickness and mounting method

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Orbit 3-1/2 in Drawn Octagon Steel Box 1-1/2 in Deep 3RB-50. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.