
1000 Amp Service Entrance Switchgear NEMA 1/3R
- 1000A capacity for critical power systems
- NEMA 1 & 3R for indoor and outdoor installs
- UL 891 certified, EUSERC & seismic compliant
UL 891 Certified
Siemens Approved OEM
EUSERC Approved
DEI Power offers a comprehensive range of electrical distribution boxes including panelboards, switchboards, switchgear, service entrance sections, meter mains, and remote power panels. Built with genuine Siemens components and UL 891 certified, these products serve commercial, industrial, utility, and data center applications across the USA.




































































































Talk to our product experts for custom solutions.
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DEI Power manufactures electrical distribution boxes including panelboards, switchboards, switchgear, service entrance sections, meter mains, and remote power panels. All products are built with genuine Siemens components under Siemens-approved OEM authorization at their 50,000 sq. ft. facility in Ontario, California, and are UL 891 certified.
Talk to our experts for custom solutions and tailored guidance.

Panelboards, switchboards, and meter mains distribute power reliably across office buildings, campuses, and retail facilities.

Heavy-duty switchgear and switchboards manage large electrical loads and protect critical systems in manufacturing operations.

Remote power panels and switchgear provide structured branch circuit distribution for server rooms, colocation rows, and AI compute pods.

Service entrance switchgear and SES units built to utility specifications for substations, grid infrastructure, and critical power systems.
Talk to our experts for custom solutions and tailored guidance.
Every distribution box is built with genuine Siemens components under OEM authorization, ensuring code compliance, long service life, and trusted performance in critical power environments.
Stocked from a 50,000 sq. ft. facility in Ontario, California, most orders ship within 1 business day — keeping your project timelines intact with minimal risk of delays.
With over a decade of experience manufacturing UL 891-certified switchgear for commercial, industrial, and utility clients, DEI Power delivers precision-engineered solutions that perform reliably in the field.
Submit your project requirements and an expert will respond with pricing, specs, and lead time guidance 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.