UL 891 Certified certified

UL 891 Certified

Siemens Approved OEM certified

Siemens Approved OEM

EUSERC Approved certified

EUSERC Approved

Outdoor Switchgear Enclosures & Walk-In Solutions

DEI Power's Outdoor Switchgear Enclosures & Walk-In Solutions include Meter Mains, Service Entrance Sections, Switchboards, Switchgear, and Service Entrance Switchgear in NEMA 1 and NEMA 3R enclosures. UL 891 certified and built with genuine Siemens components, these systems support commercial, industrial, and utility power distribution from 400A to 4000A.

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

  • Siemens Approved OEM, UL 891 certified
  • 400A–4000A across 7 voltage options
  • In-house build ensures faster delivery
Service Entrance Switchgear NEMA 1/3R

Service Entrance Switchgear NEMA 1/3R

  • NEMA 1 & 3R options, all seismic zones
  • 400A–4000A main breaker configuration
  • EUSERC approved, UL 891 certified build
Meter Main NEMA 1/3R

Meter Main NEMA 1/3R

  • NEMA 1 & 3R enclosures for any install
  • 400A–4000A amperage range available
  • UL 891 certified, EUSERC approved unit
Switchboard NEMA 1/3R

Switchboard NEMA 1/3R

  • Genuine Siemens components throughout
  • NEMA 1 or 3R enclosure configurations
  • Up to 4000A with 7 voltage options
SES (Service Entrance Section)

SES (Service Entrance Section)

  • NEMA 3R outdoor weather-resistant rated
  • Supports 400A to 4000A configurations
  • UL 891 & EUSERC approved compliance

Frequently Asked Questions

What NEMA ratings are available for DEI Power's outdoor switchgear enclosures?

DEI Power offers switchgear enclosures in NEMA 1 for indoor environments and NEMA 3R for outdoor, weather-resistant installations. The NEMA 3R rating provides protection against rain, sleet, and ice formation, making it suitable for utility yards, rooftop installations, and exterior building applications where exposure to the elements is a concern.

What amperage ranges are supported by these switchgear enclosures?

What voltage options are available?

Are DEI Power's enclosures UL 891 certified?

Do these products meet seismic compliance requirements?

Can switchgear be built to custom utility specifications?

What lead times and shipping options are available?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Commercial Buildings & Campuses

Commercial Buildings & Campuses

Meter mains, switchboards, and switchgear provide reliable power distribution for large commercial buildings and multi-building campuses.

Industrial & Manufacturing

Industrial & Manufacturing

Heavy-duty service entrance switchgear and switchboards support large electrical load control in manufacturing and processing facilities.

Utility & Infrastructure

Utility & Infrastructure

EUSERC-approved switchgear and service entrance equipment designed for utility substations and critical infrastructure power systems.

Data Centers & Colocation

Data Centers & Colocation

High-amperage switchgear supports the power reliability demands of hyperscale and enterprise data center and colocation environments.

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 & Facility Teams Choose DEI Power

Fastest In-House Manufacturing

DEI Power's 50,000 sq. ft. Ontario, CA facility enables in-house builds, shorter lead times, and reliable delivery to your job site in 3–5 business days.

Siemens OEM & UL 891 Certified

Every enclosure is built with genuine Siemens components under Siemens OEM authorization and UL 891 certification, ensuring code-compliant, field-ready performance.

End-to-End Engineering Support

From custom utility specifications to post-installation guidance, DEI Power's in-house engineering team supports your project at every stage, reducing change orders and field adjustments.

Get a Quote for Your Switchgear Project Today

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