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.
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:
Flexible access options simplify installation, wiring, and maintenance in any switchgear configuration.
Adaptable entry and exit designs fit site constraints and streamline cable routing.
Choose draw-out or fixed breakers for safe operation and simplified maintenance.
Custom configurations enhance system redundancy, load management, and operational flexibility.
Durable NEMA-rated enclosures ensure protection in both indoor and outdoor environments.
Integrated coordination delivers power control with generators, transfer switches, and load banks.
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
We deliver California-manufactured switchgear with the quickest turnaround times in the industry. By keeping production local, we eliminate delays and ensure faster delivery statewide. Our streamlined process guarantees UL 891 certified low voltage switchgear arrives on schedule, ready for installation.
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.
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
