
1000 Amp Service Entrance Switchgear NEMA 1/3R
- 1000A capacity for commercial/industrial
- NEMA 1 & 3R weatherproof enclosures
- UL Listed & EUSERC Approved assembly
UL 891 Certified
EUSERC Approved
Siemens Approved OEM
DEI Power's Service Disconnect Switches and Service Entrance Sections provide code-compliant power distribution for commercial, industrial, and utility applications. Built with genuine Siemens components, UL 891 certified, and EUSERC approved, these assemblies are available in amperage ratings from 400A to 4000A with NEMA 1 and NEMA 3R enclosure options.


































Talk to our product experts for custom solutions.
Apply Filters






Showing 1 to 6 of 34 results
A service disconnect switch provides the means to safely disconnect all power from a building or facility at the utility service entrance. It allows utility workers, electricians, and facility personnel to de-energize the entire electrical system during maintenance, emergencies, or inspections. Code requires a service disconnect to be located at a readily accessible location near the point of utility entry.
Talk to our experts for custom solutions and tailored guidance.

Service entrance sections sized 400A–4000A support power distribution for office complexes, retail centers, and campuses.

Heavy-duty SES and switchgear assemblies manage large electrical loads in plants, factories, and processing facilities.

EUSERC-approved service entrance equipment supports substations, grid tie-ins, and critical utility infrastructure projects.

Code-compliant service disconnects ensure continuous, reliable power for mission-critical data center and healthcare environments.
Talk to our experts for custom solutions and tailored guidance.
Every service entrance section and switchgear assembly is UL 891 certified and EUSERC approved, ensuring full code compliance and reliable field performance.
As an approved Siemens OEM operating from a 50,000 sq. ft. facility, DEI Power delivers faster builds, fewer delays, and industry-leading lead times.
From configuration guidance and specialist consultation to accurate documentation, DEI Power reduces change orders and keeps your project on schedule.
Submit your requirements and an SES specialist will respond with configuration guidance, compliance details, and project pricing.
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.