UL 891 Certified certified

UL 891 Certified

EUSERC Approved certified

EUSERC Approved

Siemens Approved OEM certified

Siemens Approved OEM

Commercial Panelboards | Reliable Power Distribution for Buildings

DEI Power's commercial panelboards provide reliable power distribution for buildings across commercial, industrial, and utility applications. Built with genuine Siemens components and UL-listed assemblies, these panelboards are available in NEMA 1 and NEMA 3R enclosures with amperage options from 400A to 4000A and multiple voltage configurations to meet diverse project requirements.

1000 Amp Service Entrance Switchgear NEMA 1/3R
240V Switchgear NEMA 1/3R
400 Amp Service Entrance Switchgear NEMA 1/3R
1200 Amp Switchboard NEMA 1/3R
600 Amp Service Entrance Switchgear NEMA 1/3R
400 Amp Switchboard NEMA 1/3R
240/120V Switchboard NEMA 1/3R
400 Amp Panelboard NEMA 1/3R
600 Amp Switchboard NEMA 1/3R
1000 Amp Switchgear NEMA 1/3R
4000 Amp Switchboard NEMA 1/3R
240/120V Service Entrance Switchgear NEMA 1/3R
Switchgear
240V Panelboard NEMA 1/3R
4000 Amp Switchgear NEMA 1/3R
3000 Amp Panelboard NEMA 1/3R
480V Service Entrance Switchgear NEMA 1/3R
480Y/277V Switchgear NEMA 1/3R
480V Switchboard NEMA 1/3R
240/120V Panelboard NEMA 1/3R
2000 Amp Switchgear NEMA 1/3R
2500 Amp SES NEMA 1/3R
800 Amp Switchboard NEMA 1/3R
Remote Power Panels
1000 Amp Switchboard NEMA 1/3R
208Y/120V Service Entrance Switchgear NEMA 1/3R
4000 Amp Panelboard NEMA 1/3R
2500 Amp Service Entrance Switchgear NEMA 1/3R
Remote Power Panels - 800A
1600 Amp Switchgear NEMA 1/3R
1600 Amp Panelboard NEMA 1/3R
Service Entrance Switchgear NEMA 1/3R
240/120V Switchgear NEMA 1/3R
Remote Power Panels - 600A
Remote Power Panels
600 Amp Switchgear NEMA 1/3R
400 Amp SES NEMA 1/3R
800 Amp Panelboard NEMA 1/3R
2500 Amp Panelboard NEMA 1/3R
208Y/120V Panelboard NEMA 1/3R
415/240V Switchgear NEMA 1/3R
480Y/277V Panelboard NEMA 1/3R
1200A Switchgear NEMA 1/3R
Switchboard NEMA 1/3R
480V Switchboard NEMA 1/3R
800 Amp SES NEMA 1/3R
4000 Amp Switchgear NEMA 1/3R
415/240V Service Entrance Switchgear NEMA 1/3R
2500 Amp Switchboard NEMA 1/3R
1000 Amp Panelboard NEMA 1/3R
2000 Amp Service Entrance Switchgear NEMA 1/3R
800 Amp Service Entrance Switchgear NEMA 1/3R
1200 Amp Service Entrance Switchgear NEMA 1/3R
4000 Amp Service Entrance Switchgear NEMA 1/3R
2000 Amp Switchboard NEMA 1/3R
1600 Amp Switchboard NEMA 1/3R
800 Amp Switchgear NEMA 1/3R
3000 Amp Switchboard NEMA 1/3R
240V Service Entrance Switchgear NEMA 1/3R
1600 Amp Service Entrance Switchgear NEMA 1/3R
415/240V Switchboard NEMA 1/3R
480V Panelboard NEMA 1/3R
208Y/120V Switchgear NEMA 1/3R
3000 Amp Service Entrance Switchgear NEMA 1/3R
480V Switchgear NEMA 1/3R
240V Switchboard NEMA 1/3R
Remote Power Panels - 1200A
1000 Amp SES NEMA 1/3R
415/240V Panelboard NEMA 1/3R
2500 Amp Switchgear NEMA 1/3R
120/240V Panelboard NEMA 1/3R
480Y/277V Panelboard NEMA 1/3R
208Y/120V Switchboard NEMA 1/3R
2000 Amp Panelboard NEMA 1/3R
480Y/277V Switchboard NEMA 1/3R
3000 Amp Switchgear NEMA 1/3R
480Y/277V Service Entrance Switchgear NEMA 1/3R
Panelboard NEMA 1/3R
Remote Power Panels
480Y/277V SES NEMA 1/3R
480V SES NEMA 1/3R
120/240V SES NEMA 1/3R
240/120V SES NEMA 1/3R

Our Range of Products

1000 Amp Service Entrance Switchgear NEMA 1/3R

1000 Amp Service Entrance Switchgear NEMA 1/3R

  • 1000A capacity for critical power systems
  • Genuine Siemens components throughout
  • NEMA 1 & 3R enclosures, multi-voltage rated
240V Switchgear NEMA 1/3R

240V Switchgear NEMA 1/3R

  • 240V switchgear with heavy-duty durable build
  • UL Listed & EUSERC Approved for full compliance
  • NEMA 1 & 3R for flexible indoor/outdoor installs
400 Amp Service Entrance Switchgear NEMA 1/3R

400 Amp Service Entrance Switchgear NEMA 1/3R

  • 400A service entrance, multi-voltage
  • Genuine Siemens components inside
  • UL Listed & EUSERC Approved assembly
1200 Amp Switchboard NEMA 1/3R

1200 Amp Switchboard NEMA 1/3R

  • 1200A switchboard for large facilities
  • NEMA 1 & 3R indoor/outdoor enclosures
  • UL Listed & EUSERC Approved assembly
600 Amp Service Entrance Switchgear NEMA 1/3R

600 Amp Service Entrance Switchgear NEMA 1/3R

  • 600A service entrance for mid-range facilities
  • UL Listed & EUSERC Approved for utility compliance
  • NEMA 1 & 3R enclosures for any installation site
400 Amp Switchboard NEMA 1/3R

400 Amp Switchboard NEMA 1/3R

  • 400A switchboard with multi-voltage compatibility
  • UL 891 Certified & EUSERC Approved for compliance
  • NEMA 1 & 3R enclosures for flexible installation

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Frequently Asked Questions

How much is a commercial electrical panel?

Commercial panelboard pricing varies based on amperage, voltage configuration, enclosure type (NEMA 1 or NEMA 3R), and certifications required. DEI Power's panelboards range from 400A to 4000A across multiple voltages. All pricing is available on request — contact a specialist for a fast, project-specific quote tailored to your load requirements and utility specs.

What amperage options are available for commercial panelboards?

What voltage configurations are available for commercial panelboards?

Are DEI Power panelboards UL listed and code compliant?

What is the difference between NEMA 1 and NEMA 3R enclosures for panelboards?

How quickly do commercial panelboards ship from DEI Power?

What warranty is included with DEI Power commercial panelboards?

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

Power distribution panelboards for offices, retail centers, and mixed-use buildings requiring safe load control.

Industrial & Manufacturing

Industrial & Manufacturing

Heavy-duty panelboards supporting large electrical loads and continuous operations in industrial plants.

Utility & Infrastructure

Utility & Infrastructure

EUSERC-approved panelboards built to utility specifications for substations and critical infrastructure projects.

Data Centers & Healthcare

Data Centers & Healthcare

Reliable, code-compliant panelboards protecting critical power loads in data centers and healthcare facilities.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Why Contractors & Facility Teams Choose DEI Power

Siemens OEM-Built Reliability

Every panelboard is assembled with genuine Siemens components as an approved OEM, ensuring code-compliant performance and long-term dependability in demanding environments.

Fast Fulfillment, Ships in 1–5 Days

With a 50,000 sq. ft. facility in Ontario, CA, DEI Power ships most panelboard orders within 1 business day, reducing schedule risk on time-sensitive projects.

Dedicated Technical & Project Support

From configuration guidance to post-installation serviceability, DEI Power's specialists provide hands-on support at every project phase to reduce change orders and field adjustments.

Get a Quote on Commercial Panelboards Today

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

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.