400A Distribution Panels

DEI Power offers 400A panels in a wide range of voltage configurations including 120/240V, 208Y/120V, 240V, 240/120V, 480V, 480Y/277V, and 415/240V. This ensures compatibility with single-phase and three-phase systems across commercial, industrial, data center, and utility applications.

Panelboards are compact enclosures used for branch circuit protection in smaller loads. Switchboards are larger, floor-mounted assemblies for higher amperage distribution with accessible front and rear. Switchgear offers the highest level of protection and isolation, typically used in utility, industrial, and mission-critical applications where safety and serviceability are paramount.

Yes. All 400A panelboards, switchboards, switchgear, and service entrance products from DEI Power are available in NEMA 1 enclosures for indoor use and NEMA 3R enclosures for outdoor or weather-resistant installations. Specify your installation environment when requesting a quote.

In-stock units typically ship within 1 business day and are delivered in 3–5 business days with free shipping. Remote Power Panels and built-to-order configurations have typical lead times of 4–6 weeks. DEI Power's 50,000 sq. ft. Ontario, California facility supports emergency and rush deployments.

Yes. All 400A distribution panels comply with seismic zone requirements under UBC (Uniform Building Code), CBC (California Building Code), and IBC (International Building Code). This is particularly important for installations in California and other high-seismic-risk regions, ensuring structural integrity during seismic events.

Yes. DEI Power offers custom panel configurations built to your project's voltage, amperage, enclosure type, and utility specifications. Service entrance switchgear must be built to approved utility specifications. Contact a specialist at (866) 773-8050 to discuss your requirements and receive an accurate configuration quote.