1600 Amp Panelboard — 480V 277V Main Breaker

The 1600A panelboards are rated for 480V and 480Y/277V systems, making them suitable for three-phase commercial and industrial applications. Additional voltage configurations including 208Y/120V, 240V, and 120/240V are also available across the DEI Power panelboard lineup to meet diverse project requirements.

NEMA 1 enclosures are designed for indoor use, protecting against dust and incidental contact. NEMA 3R enclosures are weather-resistant and rated for outdoor installation, protecting against rain, sleet, and external ice formation. Both options are available on the 1600A panelboard to accommodate indoor mechanical rooms or outdoor pad-mount installations.

Yes. All DEI Power 1600A panelboards are UL listed assemblies, meeting the requirements of UL 891 for low-voltage distribution equipment. They are also EUSERC approved, ensuring compatibility with utility service entrance requirements. This compliance supports safe installation and code acceptance across commercial and industrial projects.

A main breaker configuration means the panelboard includes an integrated main circuit breaker that controls and protects the entire panel. It provides a single disconnect point for the full 1600A load, allowing safe isolation during maintenance or emergencies. This configuration is standard for most commercial and industrial distribution applications requiring overcurrent protection at the panel level.

Yes. All 1600A panelboards from DEI Power meet UBC, CBC, and IBC requirements for all seismic zones, making them code-compliant for installation in California and other seismically active regions. This is especially important for utility infrastructure, healthcare facilities, data centers, and other critical installations requiring seismic-rated electrical equipment.

Most 1600A panelboards ship within 1 business day from DEI Power's 50,000 sq. ft. facility in Ontario, California, with delivery in 3–5 business days. Free shipping is included on all orders. In rare cases, up to 5 business days may be required for complex configurations. A 1-year manufacturer's warranty is included with every order.