Switchgear
- UL 891 certified, Siemens Approved OEM
- 400A–4000A scalable amperage range
- In-house manufacturing for faster delivery
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
DEI Power's 3000 Amp Main Distribution Panels at 480V include Meter Mains, Panelboards, Switchboards, Switchgear, Service Entrance Sections, and Service Entrance Switchgear. UL 891 certified and built with genuine Siemens components, these heavy-duty assemblies serve commercial, industrial, and utility applications requiring reliable high-capacity power distribution.
Talk to our product experts for custom solutions.
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To size a main distribution panel, calculate the total connected load in amperes, apply a demand factor per NEC guidelines, and add a safety margin — typically 20–25%. For 480V three-phase systems, divide total kVA by 1.732 × 480. DEI Power offers specialist consultation to help engineers and contractors select the correct amperage, from 400A up to 4000A, based on your specific load profile and utility requirements.
Talk to our experts for custom solutions and tailored guidance.
High-capacity 480V panels provide safe, efficient power distribution across large commercial campuses and facilities.
Heavy-duty 3000A panels control and protect large electrical loads in demanding manufacturing and processing environments.
EUSERC-approved service entrance switchgear meets utility specifications for substations and critical infrastructure projects.
UL 891 certified switchgear delivers reliable, uninterrupted power for hyperscale and enterprise data center operations.
Talk to our experts for custom solutions and tailored guidance.
As a Siemens Approved OEM, DEI Power builds every panel with genuine Siemens components, ensuring code compliance, reliability, and long-term serviceability on every project.
In-house manufacturing at our 50,000 sq. ft. Ontario, CA facility means faster builds, fewer delays, and delivery in 3–5 business days — keeping your project on schedule.
Every distribution panel we supply is UL 891 certified and meets UBC, CBC, and IBC seismic requirements, giving engineers and facility teams full code confidence nationwide.
Submit your project specs and a DEI Power specialist will respond with configuration guidance and pricing within one 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.