At DEI Power, we specialize in the design and manufacturing of UL 891-certified switchgear ranging from 800 amps to 4000 amps, tailored to the most demanding power distribution requirements.
At DEI Power, we specialize in the design and manufacturing of UL 891-certified switchgear ranging from 800 amps to 4000 amps, tailored to the most demanding power distribution requirements.
Whether you’re working in commercial construction, industrial retrofit, or high-density power environments like crypto mining, our switchgear is engineered to meet exact specifications, built to last, and compliant with the highest U.S. standards—including UL 891.
We build UL 891 switchgear for a wide range of voltage systems and wiring configurations, including:
Each assembly is UL 891 tested, carefully designed for your project’s load, layout, and environmental conditions.
From light commercial to heavy industrial and utility-scale operations, we manufacture switchgear systems across the full ampacity spectrum:
All gear is fabricated with UL 891-listed materials, subjected to rigorous factory testing, and backed by decades of engineering experience.
Every switchboard we build is fully custom, built to match footprint limitations, integration needs, and service conditions. We offer:
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Our products are proudly designed and engineered in the United States. Because we don’t rely on overseas manufacturing, international tariffs don’t affect our pricing. This allows us to offer consistent, competitive prices while delivering top-quality, American-made solutions.
Our engineering team brings over 30 years of real-world experience into every project, ensuring that every piece of UL 891 switchgear we produce is both technically sound and field-ready.
If your project demands custom-built switchgear from 800A to 4000A, with compliance, reliability, and seamless integration—you’re in the right place. Contact DEI Power today to request a quote or start a technical consultation.
Emergency and overnight shipping
When time is critical, we deliver. Our emergency and overnight freight services get your equipment where it’s needed—fast. We handle every detail, from rapid dispatch to delivery, with speed, precision, and reliability you can count on.
North America, Mexico & Canada
Whether you’re looking for backup power systems, industrial energy storage, or sustainable energy consulting, we’re ready to support your project needs. Be as specific as possible so we can connect you with the right expert.
+1 (866) 773-8050
1745 S. Bon View Ave Ontario CA 91761
sales@deipower.com
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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
What Is a Custom Panelboard—and Do You Need One?
5 Signs Your Facility Needs a Panelboard Upgrade
