
Meter Main NEMA 1/3R
- 1200A rated, up to 4000A available
- NEMA 3R outdoor weather-resistant enclosure
- UL Listed & EUSERC Approved assembly
UL 891 Certified
EUSERC Approved
Approved Siemens OEM
DEI Power's 1200 Amp Outdoor Meter Main Switchgear Combo delivers heavy-duty power distribution for commercial, industrial, and utility applications. Featuring NEMA 3R weather-resistant enclosures, UL 891 certification, genuine Siemens components, and EUSERC approval, these assemblies are engineered for reliable performance in demanding outdoor environments.


A meter main switchgear combo integrates a utility metering socket and main circuit breaker or disconnect into a single enclosure. This simplifies installation by combining two functions — metering and overcurrent protection — into one code-compliant assembly, reducing wiring complexity and saving space on commercial and industrial projects.
Talk to our experts for custom solutions and tailored guidance.

Provides reliable 1200A metering and overcurrent protection for offices, retail centers, and campuses.

Supports high-demand power distribution in factories, processing plants, and production environments.

EUSERC-approved assemblies engineered for utility substations and critical infrastructure power systems.

Delivers code-compliant power control for hospitals and medical campuses where uptime is critical.
Talk to our experts for custom solutions and tailored guidance.
Our 50,000 sq. ft. Ontario, CA facility enables in-house switchgear builds, cutting lead times and minimizing project delays.
Every assembly is UL 891 certified and EUSERC approved, meeting UBC, CBC, and IBC seismic requirements for confident code compliance.
As an approved Siemens OEM with 10+ years of experience, we deliver precision-engineered switchgear backed by trusted components and expert support.
Submit your project specs and our switchgear specialists will respond with configuration guidance and pricing 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.