Switchgear
- UL 891 certified Siemens Approved OEM build
- 400A to 4000A for data centers & industry
- In-house manufacturing for faster delivery
UL 891 Certified
Siemens Approved OEM
EUSERC Approved
DEI Power's UL Listed NEMA 3R Switchgear & Switchboards are heavy-duty power distribution assemblies designed for commercial, industrial, and utility applications. Built with genuine Siemens components and UL 891 certified, they are available in NEMA 1 and NEMA 3R enclosures with amperage ratings from 400A to 4000A, supporting indoor and outdoor installations nationwide.
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NEMA 1 enclosures are designed for indoor use, protecting against dust and light contact. NEMA 3R enclosures are rated for outdoor installation, offering protection against rain, sleet, and ice formation. DEI Power offers both options across its full switchgear and switchboard product line, allowing flexible deployment in virtually any environment.
Talk to our experts for custom solutions and tailored guidance.
Switchgear and switchboards power large commercial buildings and campuses with reliable, code-compliant service entrance solutions.
Heavy-duty power distribution switchgear supports industrial facilities and manufacturing operations with continuous uptime and large load control.
EUSERC-approved switchgear meets strict utility specifications for substations, grid infrastructure, and critical service entrance applications.
High-capacity switchgear from 400A to 4000A supports reliable, uninterrupted power for hyperscale and enterprise data center facilities.
Talk to our experts for custom solutions and tailored guidance.
DEI Power manufactures switchgear in-house at a 50,000 sq. ft. Ontario, CA facility, enabling faster builds, fewer delays, and delivery in 3–5 business days.
As an approved Siemens OEM, every assembly uses genuine Siemens components and meets UL 891, EUSERC, and full seismic compliance standards for code-ready installations.
From custom specifications to post-installation questions, DEI Power's in-house engineering team provides clear documentation and ongoing technical guidance to keep your project on schedule.
Submit your project details and a DEI Power specialist will respond with pricing, configuration guidance, and lead time confirmation.
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.