
Switchgear
- UL 891 certified low-voltage switchgear
- 400A–4000A scalable amperage range
- In-house build for faster, reliable delivery
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
DEI Power's 1000A Service Entrance Switches include Meter Mains, Service Entrance Sections, Switchboards, Switchgear, and Service Entrance Switchgear. UL 891 certified and EUSERC Approved, these heavy-duty assemblies are built with genuine Siemens components for reliable power distribution in commercial, industrial, and utility applications.





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A 1000A service entrance switch is a UL-listed electrical assembly that serves as the main disconnect point where utility power enters a building. Rated at 1000 amperes, it controls and protects large electrical loads in commercial, industrial, and utility applications, ensuring safe power distribution and code-compliant service entrance termination.
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Service entrance switches provide safe, code-compliant main disconnect and power distribution for office buildings and campuses.

Heavy-duty switchgear controls large electrical loads and protects critical systems in manufacturing and processing facilities.

EUSERC Approved service entrance equipment meets utility standards for substations and infrastructure power systems.

Switchgear assemblies deliver reliable, high-capacity power distribution for hyperscale and enterprise data center operations.
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Our 50,000 sq. ft. Ontario, CA facility enables in-house builds, reducing lead times and ensuring on-schedule delivery for time-sensitive projects.
As an approved Siemens OEM, every assembly uses genuine Siemens components, guaranteeing code-compliant, precision-engineered power distribution equipment.
From custom utility specs to post-installation guidance, our dedicated technical team ensures accurate configuration and minimizes costly field adjustments.
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.