
Service Entrance Switchgear NEMA 1/3R
- Genuine Siemens components for reliability
- 400A–4000A with 7 voltage configurations
- EUSERC & UL 891 seismic-zone compliant
UL 891 Certified
EUSERC Approved
Approved Siemens OEM
DEI Power's 600 Amp 3 Phase Service Entrance CT Cabinets include Meter Mains, Service Entrance Switchgear, and SES units. UL 891 certified and EUSERC approved, these assemblies are built with genuine Siemens components for reliable power distribution in commercial, industrial, and utility applications across the USA.






For a 600 amp service, you need a CT cabinet rated at 600A. DEI Power's service entrance CT cabinets are available in 600A configurations across Meter Main, Service Entrance Switchgear, and SES product lines. Enclosures measure 14" D × 30" W × 90" H and are available in NEMA 1 (indoor) or NEMA 3R (outdoor) ratings to suit your installation environment.
Talk to our experts for custom solutions and tailored guidance.

Provides safe, code-compliant 600A service entrance power distribution for offices, retail centers, and campuses.

Delivers reliable high-capacity power control for manufacturing plants, processing facilities, and production environments.

Supports utility substations and critical infrastructure with EUSERC-approved, seismic-compliant switchgear assemblies.

Ensures uninterrupted power and critical system protection for data centers, colocation facilities, and healthcare campuses.
Talk to our experts for custom solutions and tailored guidance.
Our 50,000 sq. ft. Ontario, CA facility enables in-house builds, faster turnarounds, and free 3–5 business day shipping on all orders.
Every CT cabinet is UL 891 certified, EUSERC approved, and meets UBC, CBC, and IBC seismic requirements for code-compliant installations.
As an approved Siemens OEM with 10+ years of experience, we deliver precision-engineered switchgear built for long-term reliability and serviceability.
Submit your project details and a DEI Power specialist 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.