1000 Amp Service Entrance Switchgear NEMA 1/3R
- 1000A service entrance, UL 891 Certified
- UL Listed & EUSERC Approved assembly
- NEMA 1 or NEMA 3R weather-resistant option
UL 891 Certified
Siemens Approved OEM
EUSERC Approved
DEI Power's UL Listed Electrical Enclosures include a comprehensive range of panelboards, switchboards, switchgear, meter mains, service entrance sections, and remote power panels. Built with genuine Siemens components, available in NEMA 1 and NEMA 3R configurations, and rated from 400A to 4000A, these enclosures deliver code-compliant, heavy-duty power distribution for commercial, industrial, utility, and data center applications.
Talk to our product experts for custom solutions.
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A UL enclosure is an electrical housing — such as a panelboard, switchboard, or switchgear cabinet — that has been tested and certified by Underwriters Laboratories (UL) to meet specific safety and performance standards. UL listing confirms the enclosure meets recognized codes, reducing liability and ensuring code compliance on commercial, industrial, and utility projects.
Talk to our experts for custom solutions and tailored guidance.
Panelboards, switchboards, and meter mains power high-demand commercial facilities with UL-listed, code-compliant distribution.
Heavy-duty switchgear and SES units provide reliable load control for industrial facilities and manufacturing operations.
Remote power panels and switchgear deliver structured branch circuit distribution for data centers, colocation, and edge compute sites.
EUSERC-approved meter mains and service entrance sections meet utility specifications for grid-connected infrastructure projects.
Talk to our experts for custom solutions and tailored guidance.
As an approved Siemens OEM, DEI Power builds every enclosure in-house at their Ontario, CA facility, ensuring precision quality control and faster lead times than standard distributors.
Every enclosure ships UL Listed and UL 891 certified, EUSERC approved, and seismically compliant under UBC, CBC, and IBC — eliminating code-compliance risk on your project.
With 50,000+ sq. ft. of in-stock inventory, most orders ship within 1 business day and arrive in 3–5 days, with free shipping nationwide on all orders.
Submit your requirements and a DEI Power specialist will respond promptly with pricing, configuration guidance, and lead time details.
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.