UL 891 Certified certified

UL 891 Certified

EUSERC Approved certified

EUSERC Approved

Siemens Approved OEM certified

Siemens Approved OEM

1000A Service Entrance Switches

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.

Switchgear
Service Entrance Switchgear NEMA 1/3R
Meter Main NEMA 1/3R
Switchboard NEMA 1/3R
SES (Service Entrance Section)

Our Range of Products

Switchgear

Switchgear

  • UL 891 certified low-voltage switchgear
  • 400A–4000A scalable amperage range
  • In-house build for faster, reliable delivery
Service Entrance Switchgear NEMA 1/3R

Service Entrance Switchgear NEMA 1/3R

  • NEMA 1 & 3R enclosures, indoor/outdoor
  • 400A–4000A with 7 voltage configurations
  • EUSERC Approved, all seismic zones met
Meter Main NEMA 1/3R

Meter Main NEMA 1/3R

  • NEMA 1 & 3R enclosures for any install
  • 400A–4000A amperage range available
  • UL Listed & EUSERC Approved assembly
Switchboard NEMA 1/3R

Switchboard NEMA 1/3R

  • Siemens Approved OEM manufacturer
  • NEMA 1 & 3R for indoor or outdoor use
  • 400A–4000A with 7 voltage options
SES (Service Entrance Section)

SES (Service Entrance Section)

  • UL 891 Certified with Siemens components
  • 400A–4000A main breaker configuration
  • Meets all seismic zone requirements

Frequently Asked Questions

What is a 1000A service entrance switch?

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.

What certifications do DEI Power's service entrance switches carry?

What is the difference between a Meter Main, SES, Switchboard, and Switchgear?

What voltage options are available for these service entrance switches?

Do service entrance switches need to be built to utility specifications?

Are these enclosures suitable for outdoor installation?

What is the lead time and shipping policy for service entrance switches?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Commercial Buildings

Commercial Buildings

Service entrance switches provide safe, code-compliant main disconnect and power distribution for office buildings and campuses.

Industrial & Manufacturing

Industrial & Manufacturing

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

Utility & Infrastructure

Utility & Infrastructure

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

Data Centers & Colocation

Data Centers & Colocation

Switchgear assemblies deliver reliable, high-capacity power distribution for hyperscale and enterprise data center operations.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Contractors & Engineers Choose DEI Power

In-House Manufacturing, Faster Delivery

Our 50,000 sq. ft. Ontario, CA facility enables in-house builds, reducing lead times and ensuring on-schedule delivery for time-sensitive projects.

Siemens Approved OEM Precision

As an approved Siemens OEM, every assembly uses genuine Siemens components, guaranteeing code-compliant, precision-engineered power distribution equipment.

End-to-End Project Support

From custom utility specs to post-installation guidance, our dedicated technical team ensures accurate configuration and minimizes costly field adjustments.

Get a Quote for Your Service Entrance Project

Submit your project details and a DEI Power specialist will respond with pricing, configuration guidance, and lead time information.

Contact Us Today

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.