As a premier UL 891 switchgear manufacturer in California, we design and produce precision-engineered electrical systems that prioritize safety, reliability, and long-term performance. Each switchgear assembly meets UL 891 and NEC standards, providing California’s contractors, utilities, and industrial operators with dependable solutions for mission-critical power distribution.
Our switchgear manufacturing process is built on the principles of safety, efficiency, and adaptability. Each unit is carefully engineered to perform under demanding conditions, ensuring consistent electrical performance, simplified maintenance, and long-term reliability across industrial and commercial environments.
We are a Siemens OEM Approved Partner, delivering UL Certified switchgear built for safety, reliability, and compliance.
As a trusted manufacturer of UL 891 switchgear, we deliver engineered electrical systems designed for safety, performance, and long-term reliability.
With reliable performance and precision engineering, we ensure your electrical systems are supported with the exact power capacity you need. We offer complete switchgear solutions — 600A, 800A, 1200A, 1600A, 2000A, 2500A, 3000A, and 4000A.
Every 1600 AMP switchgear system is fully customized to your project’s requirements—from breaker configurations and electrical layouts to mechanical clearances and connection points. Our engineers design each system for seamless integration with your infrastructure, optimizing both performance and maintainability to keep your operations running efficiently.
Built for demanding environments
Whether in industrial manufacturing, utility distribution, or high-traffic commercial buildings, our switchgear delivers dependable performance under continuous heavy load. High-grade materials and precision fabrication ensure long-term reliability and consistent operation.
Precision fit and seamless integration
We fabricate every system to your exact dimensions, reducing installation time and avoiding costly field adjustments. CAD-based design, custom busbar fabrication, and in-house CNC machining guarantee consistent quality, code compliance, and a perfect fit from day one.
Our UL 891 1600 AMP switchgear is trusted throughout California for medium- to high-load applications, including manufacturing plants, utilities, data centers, and critical infrastructure. Each system offers high-capacity electrical management, precise control, and full compliance with UL 891 and NEC safety codes.
NEMA 3R enclosures are best suited for:
Utility yards and substations
Exterior plant distribution points
Rooftop or pad-mounted installations
Outdoor event or temporary power
Created with operators and maintenance professionals, our switchgear systems deliver practical benefits that improve efficiency, safety, and long-term dependability.
Made to your exact specifications for fit and function.
Space-efficient designs to fit tight electrical rooms.
Accessible layouts reduce service time and operating costs.
Meets UL 891, NEC, and CSA requirements.
We don’t just assemble components — we engineer every system from the ground up for performance, safety, and longevity. With full in-house manufacturing, we control every stage of production, ensuring you get precisely the gear you ordered, on time, and built for decades of service.
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…”
Sept. 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…”
Nov. 2024
Top-tier service
“Pierre really took the time to understand what we needed and made sure every detail was right…”
Jan. 2025
Exceptional attention to detail
“DEI Power delivered exactly what we needed. The custom switchboard was designed to our specifications, and the build quality exceeded expectations.”
Aug. 2025
We maintain complete control over production with in-house CNC machining, laser cutting, and copper busbar fabrication. This allows us to deliver precision-built, code-compliant switchgear that meets your project’s exact specifications. Every unit undergoes rigorous testing to ensure accuracy, performance, and safety.
With nationwide delivery and responsive technical assistance, organizations across California rely on us as their preferred 1600 AMP switchgear manufacturer. Whether you’re upgrading existing electrical systems or building new infrastructure, our UL 891-compliant switchgear provides dependable power distribution, built-in safety, and lasting value—delivered on schedule and engineered to exceed expectations.
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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What Is a Custom Panelboard—and Do You Need One?
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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