1200A Main Circuit Breaker Switchboards

DEI Power switchboards support a broad range of voltage configurations, including 120/240V, 240V, 208Y/120V, 240/120V, 480V, 480Y/277V, and 415/240V. These options cover the most common commercial, industrial, and utility voltage systems found across the United States, ensuring compatibility with diverse infrastructure and facility requirements.

NEMA 1 enclosures are designed for indoor installations, providing protection against dust and incidental contact. NEMA 3R enclosures are rated for outdoor use, offering weather resistance against rain, sleet, and external ice formation. DEI Power switchboards are available in both ratings, allowing the correct enclosure to be selected based on the installation environment.

Yes. All DEI Power switchboards carry UL 891 certification for low-voltage switchboard construction and are UL Listed assemblies. They also meet UBC, CBC, and IBC seismic zone requirements and are EUSERC Approved for utility service entrance applications, ensuring full code compliance across commercial, industrial, and utility installations nationwide.

EUSERC (Electric Utility Service Entrance Requirements Committee) Approval indicates that a switchboard meets the standards established by electric utilities for service entrance equipment. This approval is required by many utilities before a switchboard can be connected to the utility's electrical distribution network, making it essential for service entrance switchgear applications.

Yes. DEI Power offers custom switchboard configurations tailored to your project's voltage, amperage, NEMA enclosure rating, and layout requirements. In-house engineering and dedicated project support are available to guide specification, ensure utility compliance, and confirm accurate configuration prior to manufacturing, reducing the risk of field adjustments or change orders.

Most DEI Power switchboards ship within one business day from their 50,000 sq. ft. Ontario, California facility, with standard delivery in 3–5 business days nationwide. Free shipping is included on all orders. In rare cases, up to 5 business days may be required for shipment preparation. All orders include a 1-year warranty.