800 Amp 3-Pole Enclosed Circuit Breaker — NEMA 3R

Yes. All 800 Amp NEMA 3R enclosed circuit breaker assemblies offered by DEI Power are UL listed under UL 891 standards for low-voltage switchgear. They also carry EUSERC Approval and meet UBC, CBC, and IBC seismic zone requirements, making them suitable for code-compliant installations across commercial, industrial, and utility applications nationwide.

The 800 Amp 3-Pole NEMA 3R enclosed circuit breaker is available in multiple voltage configurations, including 120/240V, 208Y/120V, 240V, 240/120V, 480V, 480Y/277V, and 415/240V. This multi-voltage flexibility makes the product suitable for a wide range of commercial, industrial, and utility service entrance applications across different electrical systems.

Yes. The NEMA 3R enclosure is specifically designed for outdoor service entrance use. The assemblies are EUSERC Approved and must be built to approved utility specifications, making them appropriate for utility service entrance sections, switchgear, and meter main configurations deployed in outdoor environments where weather resistance and regulatory compliance are required.

NEMA 1 enclosures are rated for indoor use only, protecting against dust and incidental contact. NEMA 3R enclosures are rated for outdoor use, adding protection against rain, sleet, and ice. For installations in exterior locations, rooftops, or exposed utility areas, a NEMA 3R enclosure is required to maintain equipment integrity and code compliance.

Yes. All 800 Amp NEMA 3R enclosed circuit breaker assemblies from DEI Power meet UBC, CBC, and IBC requirements for all seismic zones. This ensures the equipment can be safely installed in seismically active regions and satisfies structural compliance requirements for commercial, industrial, and utility projects in California and other high-seismic areas.

DEI Power ships most orders within 1 business day from their 50,000 sq. ft. facility in Ontario, California, with standard delivery in 3–5 business days. Free shipping is included on all orders. Because service entrance equipment must be built to approved utility specifications, customers are encouraged to call a specialist first to confirm configuration and lead time before ordering.