600 Amp 3 Phase Main Distribution Panels 240V

A three-phase distribution board, or main distribution panel, receives incoming three-phase power from a utility service and distributes it to multiple circuits or sub-panels. It houses protective devices such as main breakers, busbars, and overcurrent protection. In commercial and industrial settings, three-phase panels efficiently handle large electrical loads, motors, and HVAC systems at voltages like 240V or 480V.

Switchboards are typically open-construction, dead-front assemblies used for power distribution in commercial and industrial facilities, governed by UL 891. Switchgear generally refers to metal-enclosed or metal-clad equipment providing higher levels of arc flash protection and isolation. DEI Power offers both UL 891-certified switchboards and switchgear, built with genuine Siemens components for code-compliant power distribution.

DEI Power's 600A 3-phase 240V distribution panels are available in NEMA 1 enclosures for indoor, dry locations and NEMA 3R enclosures for outdoor or weather-exposed installations. This flexibility allows the same UL 891-certified, Siemens-component panel design to be deployed across a wide range of commercial, industrial, and utility environments without compromising protection or code compliance.

Yes. All DEI Power distribution panels are UL Listed assemblies certified to UL 891 for low-voltage switchgear. They are also EUSERC Approved and meet UBC, CBC, and IBC seismic requirements for all seismic zones. These certifications ensure the panels satisfy national electrical code requirements and are accepted by utilities and inspectors across the USA.

DEI Power's main distribution panels support multiple voltage configurations including 120/240V, 240V, 208Y/120V, 240/120V, 480V, 480Y/277V, and 415/240V. This broad voltage compatibility makes them suitable for a wide range of commercial, industrial, and utility applications. Amperage options range from 400A to 4,000A, with 600A being a commonly specified configuration for mid-scale facilities.

DEI Power ships most orders within 1 business day from their 50,000 sq. ft. Ontario, California facility, with standard delivery in 3–5 business days. In rare cases, up to 5 business days may be required for order processing. Free shipping is included on all orders, and each panel comes with a 1-year warranty for added confidence and long-term serviceability.