Approved OEM for Siemens

Switchgear manufacturing without the wait

At DEI Power, we are laser-focused on delivering UL Certified parts & equipment. Our dedication to precision results in unmatched quality, faster delivery times, and deep expertise that you can rely on every project.

Custom panel manufacturing

We build custom electrical panels tailored to your specs with full code compliance and quality assurance.

Design & engineering services

Our engineers provide detailed, compliant electrical designs to support accurate and efficient system design

Custom busbar manufacturing

We build custom busbars manufactured for efficient, safe, and space-saving power distribution.

Approved OEM for Siemens

Switchgear Manufacturing Without the Wait

At DEI Power, we are laser-focused on delivering UL Certified parts & equipment. Our dedication to precision results in unmatched quality, faster delivery times, and deep expertise that you can rely on every project.

Approved OEM for Siemens

Switchgear Manufacturing Without the Wait

At DEI Power, we are laser-focused on delivering UL Certified parts & equipment. Our dedication to precision results in unmatched quality, faster delivery times, and deep expertise that you can rely on every project.

Why Choose Us

We are your trusted partner in low voltage excellence

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Delivering precision-built UL891 low voltage systems with unmatched reliability and performance.

When you choose DEI Power, you’re choosing a partner fully committed to reliability, safety, and performance—without compromise.

We specialize exclusively in UL891-certified low voltage switchboards—and that focus makes all the difference. While larger manufacturers spread wide, we go deep, delivering precision-built systems with faster turnarounds, and lasting performance.

Services We Offer

Empowering your growth with smart and scalable power solutions

At DEI Power, we blend cutting-edge technology with engineering expertise to build reliable electrical infrastructure that evolves with your business.

Design & engineering services

Our engineers provide detailed, compliant electrical designs to support accurate and efficient system design

Custom panel manufacturing

We build custom electrical panels tailored to your specs with full code compliance and quality assurance.

Custom busbar manufacturing

We build custom busbars manufactured for efficient, safe, and space-saving power distribution.

Warranty & support

We offer reliable warranty coverage and dedicated support to keep your systems running smoothly.

Retrofitting & upgrades

We upgrade legacy systems with modern, efficient technology to improve safety and performance.

Questions?

Have questions? Our team is here to help with expert support and quick answers.

Why Choose Us

Driven by your needs, powered by DEI

At DEI Power, we specialize in precision-engineered low voltage solutions, delivering certified quality, speed, and support you can trust. What sets us apart is our team of highly qualified technicians and engineers, our commitment to collaborative, customer-focused service, and our emphasis on efficient, sustainable processes. Every product we deliver undergoes rigorous quality assurance and testing to ensure performance and reliability you can count on.

We don’t just build electrical systems—we build trust. With a team committed to precision, responsiveness, and lasting performance, we ensure every project is backed by expertise you can count on. When you need dependable low voltage solutions, we’re ready to deliver.

UL891 Certified

Each switchboard is precisely engineered and tested to meet UL891 standards, ensuring safety, performance, and long-term reliability in demanding environments.

Custom-engineered solutions

Specifically designed to meet the unique needs of your project, our custom-engineered solutions offer precision and performance to ensure every detail aligns with your exact specifications.

Reliable Support

Receive expert consultation at every stage of the project lifecycle; ensuring consistent, informed guidance and dependable support you can count on.

Try Our Panel Builder

Customize your panel board in just a few clicks

Design the right solution for your project with our easy-to-use Panel Builder tool. Select your specifications, configure features, and generate a custom layout. Whether you’re planning a new installation or updating an existing system, our tool simplifies the process and helps you get accurate results fast. Start building today and bring your panelboard vision to life.

Industries We Serve

Engineered for every industry

DEI Power supports a wide range of sectors with tailored low voltage solutions built to meet the demands of complex electrical environments.

From commercial buildings and manufacturing facilities to utilities, transportation hubs, and data centers, our systems are designed for performance, safety, and long-term reliability. No matter the industry, we deliver the same level of precision, compliance, and responsiveness to every project.

Healthcare facilities

Data centers

Commercial office buildings

Educational campuses

Manufacturing plants

Retail & distribution centers

Service You Trust

Fast, friendly support when you need it

We understand that in mission-critical environments, downtime isn’t an option. That’s why we offer reliable, responsive support from our in-house engineers and customer service team. Whether you need quick troubleshooting or help coordinating repairs, we’re here to assist — with service that matches the quality of our products.

24/7 support access

Get expert help any time with round-the-clock phone and email support. Our team is ready to troubleshoot issues quickly and keep your power systems running without delay.

Remote diagnostics

We provide fast, remote troubleshooting to identify and solve problems before they escalate. It’s proactive support designed to keep your operations powered and productive.

Simple claims process

No red tape — just results. Submit your warranty issue, and we’ll respond fast with repair, replacement, or resolution to get your system back online without hassle.

Testimonials

Built right & proven in the field by our customers

Exceptional attention to detail

“Working with DEI Power has been a game-changer for our operations. Their custom panelboards are expertly built, and the in-house bus bar manufacturing…”

- James N.

Apr. 2024

Top-tier service

“Pierre really took the time to understand what we needed and made sure every detail was right. The custom panelboard was solid, cleanly wired, and built exactly to spec.”

- James N.

Apr. 2024

Quality manufacturing

“We’ve worked with a few manufacturers before, but no one does bus bars like DEI Power. The bends were precise, the plating was clean, and everything lined up exactly the way we needed.”

- James N.

Apr. 2024

Testimonials

Read our reviews

Read candid client feedback about our communication, turnaround, reliability, and safety—real results from teams who trusted us with critical electrical work.

FAQs

Frequently asked questions

Get clear answers on services, timelines, pricing, and technical specs—our FAQ covers common questions so you can plan confidently

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

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