1000 Amp Service Entrance Switchgear NEMA 1/3R
- 1000A for commercial & utility systems
- UL 891 Certified, EUSERC Approved
- Seismic rated: UBC, CBC, and IBC zones
UL 891 Certified
Siemens Approved OEM
EUSERC Approved
DEI Power's 480V 3-Phase Panelboards deliver reliable three-phase power distribution for commercial, industrial, data center, and utility applications. Built with genuine Siemens components, UL 891 certified, and available in NEMA 1 or NEMA 3R enclosures, these panelboards range from 400A to 4000A to meet demanding project requirements nationwide.
Talk to our product experts for custom solutions.
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Not always, but 480V service is almost exclusively found in 3-phase configurations in commercial and industrial settings. The standard 480V/277V system is a 3-phase, 4-wire wye configuration used for motor loads and lighting. Single-phase 480V is rare and typically derived from a 3-phase transformer for specific equipment needs.
Talk to our experts for custom solutions and tailored guidance.
480V 3-phase panelboards provide structured branch circuit distribution for server racks, AI compute, and GPU clusters.
Heavy-duty 480V panelboards deliver reliable power for motors, production equipment, and large industrial process loads.
Scalable 480V panelboards support HVAC, lighting, and critical systems in office buildings and commercial campuses.
480V panelboards power imaging equipment, life-safety systems, and critical branch loads in hospitals and medical centers.
Talk to our experts for custom solutions and tailored guidance.
In-house manufacturing and a 50,000 sq. ft. stocked facility in Ontario, CA enable most orders to ship within 1 business day, preventing costly project delays.
Every panelboard is assembled with authentic Siemens components as an approved OEM, ensuring code-compliant performance and long-term reliability on every job.
From spec review to coordinated delivery planning, DEI Power's specialists provide round-the-clock technical and project support to keep your schedule on track.
Submit your specs and a DEI Power specialist will respond with pricing, lead times, and submittal documentation — typically same business day.
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.
