Switchgear
- UL 891 certified Siemens OEM switchgear
- 400A–4000A for high-demand facilities
- In-house build ensures faster delivery
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
NEMA 3R Panelboard Enclosures from DEI Power provide weather-resistant, outdoor-rated power distribution solutions for commercial, industrial, and utility applications. Built with genuine Siemens components, UL 891 certified, and EUSERC approved, these enclosures support amperage ranges from 400A to 4000A and multiple voltage configurations for demanding electrical environments.
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NEMA 3R is an enclosure rating that designates protection against rain, sleet, and ice formation, making it suitable for outdoor installation. Unlike NEMA 1 (indoor only), NEMA 3R panelboard enclosures are weather-resistant and designed to protect electrical components in exterior environments while still allowing for ventilation and accessibility.
Talk to our experts for custom solutions and tailored guidance.
NEMA 3R enclosures provide outdoor-rated power distribution for office parks, retail centers, and mixed-use buildings.
Heavy-duty NEMA 3R switchgear supports large electrical load control in manufacturing plants and processing facilities.
EUSERC-approved enclosures meet utility-grade specifications for substations and critical infrastructure power systems.
UL 891 certified switchgear ensures reliable, code-compliant power distribution for data centers and colocation campuses.
Talk to our experts for custom solutions and tailored guidance.
As an approved Siemens OEM, every enclosure is built with genuine Siemens components, ensuring code-compliant, precision-engineered performance you can trust on every project.
Built in our 50,000 sq. ft. Ontario, CA facility, our NEMA 3R enclosures ship within 1 business day with free shipping and 3–5 day delivery nationwide.
UL 891 certified and EUSERC approved, with dedicated specialist support to ensure accurate configuration, clear documentation, and seamless integration for your project.
Submit your project specs and a DEI Power specialist will respond 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.