400 Amp Service Entrance Switchgear NEMA 1/3R
- 400A service entrance, NEMA 1 or 3R
- UL Listed & EUSERC Approved design
- Service-friendly layout reduces downtime
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
480V Panelboards from DEI Power provide reliable power distribution for commercial, industrial, and utility applications. Built with genuine Siemens components, UL 891 certified, and available in NEMA 1 or NEMA 3R enclosures, these panelboards support amperage ratings from 400A to 4000A for demanding electrical environments.
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A 480V panel, or 480V panelboard, is a power distribution assembly that operates at 480 volts — typically in a 480Y/277V three-phase configuration. It receives electrical power from a utility source and distributes it to branch circuits throughout a facility. These panels are commonly used in commercial buildings, industrial facilities, and utility infrastructure where higher voltage distribution is required for motors, HVAC systems, and heavy equipment.
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480V panelboards distribute power across offices, retail, and multi-tenant buildings for HVAC, lighting, and equipment loads.
Heavy-duty 480V panelboards support motor control, process equipment, and large electrical loads in manufacturing facilities.
EUSERC-approved 480V panelboards meet utility specifications for substations, infrastructure, and service entrance applications.
480V panelboards provide structured branch circuit power distribution for data centers, colocation, and mission-critical environments.
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As an approved Siemens OEM, every 480V panelboard is assembled with genuine Siemens components, ensuring code compliance, system reliability, and long-term serviceability.
Built and assembled in our 50,000 sq. ft. Ontario, California facility, our in-house manufacturing enables faster builds, fewer delays, and industry-leading delivery schedules.
All 480V panelboards meet UL 891 standards and UBC, CBC, and IBC seismic zone requirements, giving you code-compliant solutions engineered for safety and dependable field performance.
Submit your project details and a DEI Power specialist will respond with pricing, configuration guidance, and lead time information.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.
