Switchgear
- Siemens Approved OEM, UL 891 Certified
- 400A to 4000A scalable amperage range
- In-house build ensures faster delivery
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
DEI Power's 1200A Switchgear — Main Circuit Breaker category encompasses UL 891-certified, Siemens-component-built power distribution equipment including Meter Mains, Switchboards, Service Entrance Sections, and Switchgear. Designed for commercial, industrial, utility, and data center applications, these units are EUSERC Approved and available in NEMA 1 and NEMA 3R enclosures.
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For a 1200A service, you typically require multiple sets of parallel conductors. A common configuration uses 4/0 AWG to 350 kcmil copper or 300–500 kcmil aluminum conductors run in parallel sets, depending on the voltage system, conduit fill, and local code requirements. Always consult a licensed electrician and your local utility for approved conductor sizing specific to your installation.
Talk to our experts for custom solutions and tailored guidance.
Main circuit breaker switchgear providing safe, reliable power distribution for large-scale commercial facilities and campuses.
Heavy-duty switchgear and service entrance equipment controlling large electrical loads in industrial plants and processing facilities.
High-reliability switchgear supporting uninterrupted uptime for hyperscale data centers and colocation facility power systems.
EUSERC-approved switchgear built to utility specifications for substations, infrastructure projects, and critical power systems.
Talk to our experts for custom solutions and tailored guidance.
DEI Power manufactures switchgear in-house at our 50,000 sq. ft. Ontario, CA facility, enabling faster builds, fewer delays, and reliable delivery schedules.
Every assembly is built with genuine Siemens components and UL 891 certified, ensuring code compliance, trusted performance, and long-term serviceability in the field.
From custom utility specifications to in-house electrical design, DEI Power provides expert technical support to keep your project on schedule and reduce costly field adjustments.
Submit your project details and a DEI Power specialist will respond promptly with configuration guidance, pricing, and lead time information.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.