
240V Switchgear NEMA 1/3R
- 240V switchgear, NEMA 1 or 3R rated
- UL Listed, EUSERC approved switchgear
- Genuine Siemens components throughout
UL 891 Certified
Siemens Approved OEM
EUSERC Approved
DEI Power's NEMA 1 Enclosures & Boxes category includes UL 891-certified panelboards, switchgear, switchboards, meter mains, service entrance sections, and remote power panels designed for indoor commercial, industrial, data center, and utility power distribution applications. Built with genuine Siemens components and rated from 225A to 4000A across multiple voltage configurations.









































































































Talk to our product experts for custom solutions.
Apply Filters






Showing 1 to 6 of 105 results
A NEMA 1 enclosure is rated for general-purpose indoor use, providing protection against contact with the enclosed equipment and against falling dirt. It is not designed to withstand moisture, rain, or outdoor conditions. NEMA 1 enclosures — including panelboards, switchgear, switchboards, and remote power panels — are the standard choice for clean, dry interior environments such as commercial buildings, data centers, and industrial facilities.
Talk to our experts for custom solutions and tailored guidance.

NEMA 1 panelboards, switchboards, and meter mains distribute power reliably across office buildings and campuses.

Remote power panels and switchgear provide structured branch circuit distribution for data center and colocation loads.

Heavy-duty switchboards and service entrance switchgear handle large electrical loads in industrial plant environments.

UL 891-certified NEMA 1 enclosures support critical life-safety branch loads and imaging equipment in healthcare settings.
Talk to our experts for custom solutions and tailored guidance.
In-house manufacturing at our 50,000 sq. ft. Ontario, CA facility means faster builds, fewer delays, and most orders shipping within 1 business day.
As an approved Siemens OEM, every NEMA 1 enclosure is built with genuine Siemens components and certified to UL 891 standards for code-compliant performance.
From configuration to delivery, our specialists provide dedicated project support, custom engineering guidance, and 24/7 availability to keep your project on schedule.
Submit your project details and an expert will respond with pricing, configuration options, 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.