480V Distribution Panels | High-Voltage Power Distribution

A switchboard is a free-standing assembly used for power distribution from utility or generator sources, typically in commercial buildings. Switchgear offers higher interrupting capacity and is used in industrial and utility applications requiring greater fault protection. A panelboard distributes power to branch circuits and is typically recessed or surface-mounted. All three are available at 480V and 480Y/277V from DEI Power.

Yes. All DEI Power 480V distribution panels carry UL 891 certification for low-voltage switchgear and switchboard assemblies. Every unit is built as a Siemens Approved OEM solution and is EUSERC approved, ensuring code compliance for commercial, industrial, and utility service entrance applications across all seismic zones.

DEI Power's 480V distribution panels are available in NEMA 1 (indoor) and NEMA 3R (outdoor, weather-resistant) enclosures. NEMA 1 is standard for indoor electrical rooms and data centers, while NEMA 3R is suited for exterior installations exposed to rain and ice. Remote Power Panels (RPPs) are available in NEMA 1 only, designed for controlled indoor data center environments.

Products in this category support multiple 480V configurations including 480V (3-phase), 480Y/277V (3-phase, 4-wire), as well as other voltages such as 208Y/120V, 120/240V, and 415/240V on multi-voltage-rated assemblies. The 480Y/277V configuration is the most common for high-density data center and industrial loads.

In-stock units ship within 1 business day from DEI Power's 50,000 sq. ft. facility in Ontario, California, with standard delivery in 3–5 business days. Built-to-order and custom configurations typically carry a 4–6 week lead time. Emergency and rush orders are supported for active data center deployments and replacement scenarios.

Yes. Service entrance switchgear and service entrance sections (SES) must be built to approved utility specifications and cannot be ordered directly online. DEI Power's engineering team works directly with contractors and engineers to configure panels to the exact utility requirements for your jurisdiction. Contact a specialist to receive a compliant submittal and custom quote.