Approved OEM Siemens

California panelboard manufactured for reliability

Our California panelboard are built for demanding commercial and industrial sites. Designed and manufactured in California, we combine fast lead times, clean layouts, and documentation that clears approvals quickly—so contractors can install with confidence and keep schedules moving.

We are dedicated to delivering custom panelboards with unmatched quality, the fastest lead times guaranteed, and deep expertise you can rely on.

Trusted partners & certifications

We are a Siemens OEM Approved Partner, delivering UL Certified switchgear built for safety, reliability, and compliance.

Manufactured over
0 +

UL 891 Panelboards

California panelboard made to meet your demands

Every assembly follows UL 891 construction and test requirements and aligns with NEMA PB 1 for panelboard performance. Labeling and identification are prepared to satisfy NEC Article 408 field requirements, streamlining inspection and turnover on California jobs.

Reliable power solutions for data centers & crypto mining

Voltages (1 Phase & 3 Phase)

Amperages

Made To Meet Demands

Custom panelboard configurations for all industries

Select the right electrical panelboards for lighting, power distribution, and mixed loads—with options for main-lug-only or main-breaker, copper bus, feed-through lugs, metering, and integrated surge protection. Ratings and layouts match real-world needs across commercial, healthcare, and data center projects.

Main breaker or MLO

Factory-assembled options up to 600 Vac and 1200 A to fit service or feeder applications.

Metering & monitoring

Ready for utility or tenant metering and energy insight add-ons where specified.

Outdoor enclosures

NEMA 1/3R/12 enclosures available for diverse environments.

Applications

Customized low voltage panelboards for every industry

We manufacture low voltage electrical panelboards built for your project’s demands, delivering reliable code compliant solutions with unmatched speed and performance.

Data Centers

High-performance electrical panelboards built for uptime & scalability

Manufacturing Plants

Efficient systems keeping production lines powered without downtime

Retail & Distribution

Scalable power systems driving logistics, operations, and customer service

Commercial Buildings

Custom electrical panelboards enhancing safety, efficiency, and tenant comfort

Industries We Serve

Customized low voltage panelboards for every industry

We manufacture low voltage electrical panelboards built for your project’s demands, delivering reliable code compliant solutions with unmatched speed and performance.

Quality Assurance

Testing and compliance standards

Every California panelboard is verified through rigorous testing to meet UL 891 standards. Our process confirms safe operation under rated current and provides complete documentation for inspections and project closeout.

Dielectric testing

Verifies insulation strength and ensures safe operation across rated voltages.

Temperature-rise checks

Confirms that conductors and bus maintain performance under continuous load.

Mechanical inspections

Validates structural integrity, enclosure fit, and reliable breaker operation.

Traceable records

Complete factory test data and certification packages.

Quality Assurance

Testing and compliance standards

Every California panelboard is verified through rigorous testing to meet UL 891 standards. Our process confirms safe operation under rated current and provides complete documentation for inspections and project closeout.

Contact Us

Power your project with California panelboards

Get a quote for electrical panelboards engineered for your loads, schedule, and space. We’ll match the right interior, breakers, and enclosure—and deliver fast.

Fastest lead times

Built in California for faster lead times

Manufactured locally

Local manufacturing shortens logistics, simplifies changes, and helps hit tight milestones. Standardized builds and disciplined material control reduce rework while keeping quality high—so your California panelboards arrive ready to land and terminate.

North America, Mexico & Canada

We ship across the U.S., Canada, and Mexico. Whether you’re in a metro area or remote location, our network ensures your heavy or high-value equipment moves quickly—without delays, customs issues, or added stress.

About Us

Contact Us

Office Location

1745 S. Bon View Ave
Ontario CA 91761

Contact Info

Phone: +1 (866) 645-1281
Email: sales@deipower.com

What Is a Custom Panelboard—and Do You Need One?

5 Signs Your Facility Needs a Panelboard Upgrade