
1000 Amp Service Entrance Switchgear NEMA 1/3R
- 1000A service entrance, multi-voltage options
- UL Listed & EUSERC Approved, seismic rated
- Genuine Siemens components ensure reliability
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
DEI Power offers a comprehensive range of custom switchboard equipment and engineered electrical solutions, including switchboards, switchgear, and service entrance equipment. Built with genuine Siemens components, UL 891 certified, and EUSERC approved, these solutions serve commercial, industrial, and utility applications from 400A to 4000A.



























































Talk to our product experts for custom solutions.
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Switchboard upgrade costs vary based on amperage rating, voltage configuration, enclosure type (NEMA 1 or NEMA 3R), and any custom specifications required by your utility. DEI Power's switchboards range from 400A to 4000A and span multiple voltage options. Pricing is available on request — contact a specialist for an accurate project quote tailored to your application.
Talk to our experts for custom solutions and tailored guidance.

Switchboards and switchgear provide safe, reliable power distribution for office complexes, retail centers, and multi-tenant facilities.

Heavy-duty switchgear rated up to 4000A handles high electrical loads across manufacturing plants and processing facilities.

EUSERC-approved service entrance switchgear engineered to meet utility specifications for substations and infrastructure projects.

UL 891-certified switchgear ensures uninterrupted, high-capacity power distribution for hyperscale and enterprise data centers.
Talk to our experts for custom solutions and tailored guidance.
As an approved Siemens OEM with 10+ years of experience, DEI Power manufactures UL 891-certified switchgear using genuine Siemens components for guaranteed reliability and code compliance.
DEI Power's 50,000 sq. ft. in-house manufacturing facility in Ontario, CA enables faster builds, fewer delays, and free shipping with delivery in 3–5 business days nationwide.
Every switchboard is built to your exact voltage, amperage, and jobsite requirements. Dedicated project support and technical experts help reduce change orders and field adjustments.
Submit your project details 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.