800A 3-Phase Main Distribution Panels

These panels support multiple voltage configurations including 120/240V, 240V, 208Y/120V, 240/120V, 480V, 480Y/277V, and 415/240V. This broad voltage compatibility makes them adaptable across a wide range of commercial, industrial, and utility power systems with varying service requirements.

All products are UL Listed and UL 891 Certified for low-voltage switchboard construction. They are also EUSERC Approved and meet UBC, CBC, and IBC requirements for all seismic zones. DEI Power holds Siemens Approved OEM status, ensuring genuine components and authorized manufacturing practices across their entire product line.

Switchboards are large assemblies that distribute power to multiple circuits and are front-accessible. Switchgear encloses circuit breakers in individual metal compartments for higher fault protection and safety. Panelboards are compact enclosures for branch-circuit distribution. DEI Power offers all three, built to UL 891 standards and configured to your utility's approved specifications.

Yes. All products — including meter mains, panelboards, switchboards, and switchgear — are available in NEMA 1 enclosures for indoor use and NEMA 3R weather-resistant enclosures for outdoor installations. This dual availability makes them suitable for a wide range of commercial and industrial environments regardless of site conditions.

Yes. Service entrance switchgear, meter mains, and service entrance sections must be built to your local utility's approved specifications. DEI Power's specialists work directly with customers to ensure each unit is configured correctly for the applicable utility requirements. Orders for these products require a consultation call before a quote can be issued.

Most orders ship within 1 business day from DEI Power's 50,000 sq. ft. facility in Ontario, California. In rare cases, shipping may take up to 5 business days. All orders include free shipping with standard delivery in 3–5 business days. Each panel comes with a 1-year warranty for reliable post-installation performance.