Thomas Betts GUAX16-TB Round Iron Electrical Box Hazardous Location

Product Description

The THOMAS BETTS GUAX16-TB is a round iron electrical box designed for use in hazardous and demanding industrial environments. Zinc-plated for corrosion resistance, this box measures 3.5 inches in overall width and 2 inches in overall depth. It ships with internal ground screws included. Rated for Class I, Class II, and Class III hazardous locations, it carries UL 514A and UL 886 listings along with CSA certification, making it a code-compliant choice for licensed electricians working in classified areas. The cast iron body provides the structural integrity required in industrial and heavy-duty commercial installations.

This box is suited for industrial plants, refineries, grain handling facilities, and similar classified locations where ignitable gases, combustible dusts, or ignitable fibers may be present. Its NEMA ratings cover NEMA 3, NEMA 4, NEMA 7CD, and NEMA 9EFG enclosures, accommodating a wide range of environmental and hazardous-area applications. The four 0.5 inch knockouts allow standard conduit entry from multiple directions, supporting typical rigid or IMC conduit installations in compliance with NEC Article 500 requirements for classified locations.

Key Features

• Round cast iron body with zinc-plated finish for durability in harsh environments
• Four 0.5 inch knockouts for flexible conduit entry
• Internal ground screws included
• Rated Class I Divisions 1 and 2 Groups C and D; Class II Division 1 Groups E, F, and G; Class III Divisions 1 and 2
• NEMA 3, NEMA 4, NEMA 7CD, and NEMA 9EFG rated
• UL 514A, UL 886, UL Listed (UL File 202368), and CSA Certified to CSA C22.2 No. 30

Compatibility

Designed as an OEM-style replacement or new-installation component for round iron electrical boxes used in hazardous location wiring systems requiring Class I, II, or III division ratings.

Installation Notes

Installation must be performed by a licensed electrician familiar with NEC Article 500 and the requirements for classified hazardous locations. De-energize all circuits and verify the area is safe before beginning work. Conduit seals, fittings, and covers used with this box must carry equivalent hazardous location ratings to maintain code compliance. Do not substitute non-rated hardware in classified location assemblies.