
1000 Amp Service Entrance Switchgear NEMA 1/3R
- 1000A rated service entrance switchgear
- NEMA 1 & 3R enclosure options available
- UL Listed with 1-year manufacturer warranty
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
Siemens Allis Switchgear from DEI Power includes UL 891-certified switchgear, switchboards, service entrance switchgear, and SES units built with genuine Siemens components. Available in NEMA 1 and NEMA 3R enclosures, with amperage ratings from 400A to 4000A across multiple voltage configurations for commercial, industrial, and utility applications.




























































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Siemens Allis Switchgear is available in a wide amperage range from 400A up to 4000A, including ratings of 400, 600, 800, 1000, 1200, 1600, 2000, 2500, 3000, and 4000 amps. This flexibility allows the switchgear to serve everything from smaller commercial applications to large-scale industrial and utility power distribution systems.
Talk to our experts for custom solutions and tailored guidance.

Provides reliable main power distribution for office complexes, retail centers, and mixed-use commercial campuses.

Supports heavy electrical loads and critical process protection in manufacturing plants and industrial processing facilities.

Engineered for utility substations and infrastructure projects requiring EUSERC-approved service entrance switchgear.

Delivers dependable, high-amperage power distribution for hyperscale and enterprise data center electrical systems.
Talk to our experts for custom solutions and tailored guidance.
As an approved Siemens OEM, every assembly uses genuine Siemens components, ensuring code-compliant performance and long-term reliability your projects demand.
Our 50,000 sq. ft. Ontario, CA facility enables in-house switchgear builds with free shipping, delivering most orders to your job site in just 3–5 business days.
From configuration guidance to post-installation support, our technical team helps eliminate change orders, reduce field adjustments, and keep your projects on schedule.
Submit your project specs and a DEI Power specialist will respond with accurate 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.