Orbit 3 in Zinc Conduit Bushing CB-300

Product Overview

The Orbit CB-300 is a 3 in zinc conduit bushing designed for protecting conductors where Rigid or IMC conduit terminates into panels, enclosures, or raceways.

Constructed of die‑cast zinc with a non‑insulated throat, CB-300 provides a compact, threaded bushing solution for commercial and industrial electrical installations and contractor stock.

Key Features

• Trade size: 3 in
• Die‑cast zinc construction with zinc finish
• Non‑insulated throat
• Threaded for Rigid and IMC conduit
• Protects conductors at conduit entry points
• UL listed for dry‑location use

What this bushing does

The Orbit CB-300 provides a durable transition at conduit entry points by covering the conduit edge and protecting insulated conductors from abrasion. Its threaded body mates with Rigid or IMC conduit fittings to secure the raceway to a panel or enclosure.

• Protects cable insulation where conduit terminates
• Threaded design secures conduit to box or enclosure
• Non‑insulated throat—no built‑in insulating liner

Typical applications

CB-300 is intended for use in commercial and industrial electrical work where a 3 in conduit termination is required. It is suitable for panel and enclosure entries, raceway terminations, service upgrades, and contractor stock use.

• Rigid and IMC conduit terminations
• Panel and enclosure entries
• Wire protection at raceway ends

Compatibility and installation notes

Confirm the model number, trade size, and that a non‑insulated throat meets project and local code requirements before installation. Installation must be performed by qualified electrical personnel and checked against project drawings and applicable electrical standards.

• Threaded fitting for Rigid/IMC conduit
• Rated for dry‑location use
• Verify box/conduit compatibility and local code before ordering

Technical specifications

The following specifications summarize the verified product details for Orbit CB-300.

Before You Order

Confirm the model number (CB-300), required quantity, and that a 3 in non‑insulated zinc bushing is appropriate for your application prior to ordering.

• Verify trade size, mounting method, and box/conduit compatibility
• Ensure non‑insulated throat satisfies project and local code requirements
• Have qualified electrical personnel perform installation

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Orbit 3 in Zinc Conduit Bushing CB-300. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.