400 Amp Service Entrance Switchgear NEMA 1/3R
- 400A service entrance, 6 voltage options
- UL Listed & EUSERC approved assembly
- Seismic compliant per UBC, CBC & IBC
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
Siemens 400 Amp Main Breaker Panels from DEI Power deliver UL-listed, code-compliant power distribution for commercial, industrial, and utility applications. Available as panelboards, switchboards, switchgear, meter mains, and service entrance sections in NEMA 1 or NEMA 3R enclosures, with multi-voltage configurations and seismic compliance.
Talk to our product experts for custom solutions.
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The cost of a 400 amp electrical panel varies based on product type, voltage configuration, and enclosure rating. DEI Power's 400A panels — including panelboards, switchboards, switchgear, and service entrance sections — are priced on request. Contact a specialist for an accurate quote based on your specific voltage, NEMA rating, and application requirements.
Talk to our experts for custom solutions and tailored guidance.
Powers electrical distribution systems in office buildings, retail centers, and multi-tenant campuses requiring reliable 400A service.
Supports heavy-duty power distribution for manufacturing lines, processing equipment, and large electrical loads in industrial plants.
Meets EUSERC and utility-approved specifications for substations, infrastructure projects, and service entrance applications.
Provides reliable, code-compliant power distribution for hyperscale and enterprise data centers demanding continuous uptime.
Talk to our experts for custom solutions and tailored guidance.
As an approved Siemens OEM, DEI Power assembles panels with genuine Siemens components, ensuring precision-engineered performance and code-compliant reliability on every project.
In-house manufacturing at our 50,000 sq. ft. Ontario, CA facility means faster builds, fewer delays, and free shipping with standard delivery in 3-5 business days nationwide.
Every panel is UL 891 certified, EUSERC approved, and meets UBC, CBC, and IBC seismic requirements — reducing change orders and keeping your project on schedule and up to code.
Submit your project details and a DEI Power specialist will respond with pricing, configuration guidance, and lead time within one business day.
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.