120/240V Meter Main NEMA 1/3R
- 120/240V dual-voltage configuration support
- NEMA 1 & 3R enclosures for any install site
- Seismic-rated: meets UBC, CBC, IBC codes
UL Listed
EUSERC Approved
Approved Siemens OEM
DEI Power's 300A Meter Main Combo units integrate a utility-grade meter socket and main circuit breaker into a single, code-compliant enclosure. Built with genuine Siemens components, UL Listed, and available in NEMA 1 or NEMA 3R configurations, these assemblies serve commercial, industrial, and utility power distribution applications across multiple voltage configurations.
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A meter main combo unit is a single enclosure that houses both a utility meter socket and a main circuit breaker. This integrated design simplifies service entrance installations, reduces wiring complexity, and saves space compared to installing separate metering and disconnect equipment. It is commonly used in commercial, industrial, and utility power distribution applications.
Talk to our experts for custom solutions and tailored guidance.
Meter main combos provide code-compliant service entrance solutions for office buildings, retail centers, and mixed-use developments.
Heavy-duty meter main assemblies support reliable power distribution for manufacturing plants, warehouses, and processing facilities.
EUSERC-approved units meet utility interconnection standards for substations, grid infrastructure, and municipal power systems.
UL Listed meter main combos deliver dependable, code-compliant power entry for hospitals, campuses, and critical care facilities.
Talk to our experts for custom solutions and tailored guidance.
Every meter main combo is assembled with genuine Siemens components by an approved OEM, ensuring precision-engineered performance and full code compliance.
Built and fulfilled from our 50,000 sq. ft. Ontario, CA facility, enabling faster builds, fewer delays, and delivery in as little as 1–5 business days.
All assemblies are UL 891 certified and meet UBC, CBC, and IBC seismic zone requirements, giving engineers and facility teams confidence in every installation.
Submit your project details and our team 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.
