1200 Amp SES NEMA 1/3R
- 1200A rated with main breaker config
- NEMA 1 indoor & 3R outdoor enclosures
- UL Listed, UL 891 & EUSERC certified
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
DEI Power's 1200A Circuit Breakers — 3 Pole 600VAC category features UL-listed, EUSERC-approved switchgear, switchboards, meter mains, and service entrance sections rated at 1200 amps. Built with genuine Siemens components, these assemblies serve commercial, industrial, and utility applications requiring heavy-duty, code-compliant power distribution.
Talk to our product experts for custom solutions.
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DEI Power's 1200A assemblies support a wide range of voltage configurations including 120/240V, 240V, 208Y/120V, 240/120V, 480V, 480Y/277V, and 415/240V. This multi-voltage flexibility ensures compatibility across commercial, industrial, and utility applications. Contact a specialist to confirm the correct voltage configuration for your specific project requirements.
Talk to our experts for custom solutions and tailored guidance.
1200A assemblies provide reliable main power distribution for large commercial buildings and multi-tenant campuses.
Heavy-duty 1200A switchboards and switchgear control large electrical loads in manufacturing and processing plants.
EUSERC-approved 1200A service entrance assemblies meet utility specifications for substation and infrastructure deployments.
1200A switchgear delivers dependable, code-compliant power for data center and colocation critical power systems.
Talk to our experts for custom solutions and tailored guidance.
As an approved Siemens OEM, DEI Power manufactures 1200A assemblies with genuine components, ensuring code compliance, precision engineering, and trusted long-term performance.
In-house manufacturing in our 50,000 sq. ft. Ontario, CA facility means faster builds, fewer delays, and free shipping with delivery in 3–5 business days.
From configuration guidance to post-installation support, DEI Power's specialists help keep your projects on schedule and reduce field adjustments or change orders.
Submit your project details and a DEI Power specialist will respond with pricing, configuration options, 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.