Service Entrance Switchgear NEMA 1/3R
- EUSERC Approved for utility compliance
- Genuine Siemens components, UL 891 listed
- 400A–4000A, 7 voltage configurations
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
DEI Power's 800 AMP Switchgear category includes UL 891-certified switchboards, service entrance switchgear, service entrance sections, meter mains, and switchgear assemblies. Built with genuine Siemens components and available in NEMA 1 or NEMA 3R enclosures, these solutions serve commercial, industrial, and utility power distribution applications across the USA.
Talk to our product experts for custom solutions.
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For an 800 amp service, you typically need 1000 kcmil aluminum conductors per phase, or you may parallel two sets of 500 kcmil aluminum conductors. Always consult the NEC table 310.12 and your local AHJ for final sizing, as conduit fill, temperature ratings, and installation conditions can affect the required conductor size.
Talk to our experts for custom solutions and tailored guidance.
800 AMP switchgear provides reliable main power distribution and service entrance control for large commercial facilities.
Heavy-duty switchboards and switchgear manage large electrical loads and protect critical systems in manufacturing environments.
EUSERC-approved service entrance switchgear built to utility specifications for substations and infrastructure power systems.
UL 891-certified switchgear ensures uninterrupted power distribution for mission-critical data center and colocation operations.
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 1–5 day shipping nationwide.
As an approved Siemens OEM and UL 891 certified manufacturer, every unit meets strict code compliance standards with genuine, precision-engineered components.
From configuration guidance to post-installation support, our technical team ensures accurate specs, reduced change orders, and uninterrupted project timelines.
Submit your project details and a DEI Power specialist will respond with pricing, configuration guidance, 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.