600 Amp Switchgear — Metal Enclosed 480Y/277V 3-Phase

Sizing switchgear requires calculating total connected load in amps, applying a safety margin (typically 20–25%), and selecting an amperage rating that meets or exceeds that demand. For 480Y/277V 3-phase systems, common ratings are 400A through 4000A. DEI Power's specialists can assist with load calculations, configuration guidance, and custom specifications to ensure your equipment is correctly sized for your application.

480V switchgear refers to low-voltage metal enclosed electrical distribution equipment operating at 480 volts, commonly configured as 480Y/277V 3-phase for commercial and industrial facilities. It controls, protects, and distributes power to downstream loads such as motors, lighting, and HVAC systems. DEI Power's 480Y/277V switchgear is UL 891 certified and available in NEMA 1 and NEMA 3R enclosures from 400A to 4000A.

For 600 Amp metal enclosed switchgear, look for UL 891 certification (low-voltage switchboard standard), UL Listing for code compliance, and EUSERC approval for utility-grade service entrance applications. Seismic compliance with UBC, CBC, and IBC standards is also critical for installations in earthquake-prone zones. DEI Power's switchgear meets all these standards and carries Siemens Approved OEM authorization.

NEMA 1 enclosures are designed for indoor installations in clean, dry environments, providing basic protection against contact with live parts. NEMA 3R enclosures are rated for outdoor use, offering protection against rain, sleet, and ice formation. DEI Power's 600A switchgear is available in both ratings, allowing flexible deployment across indoor electrical rooms and outdoor pad-mount installations.

600A 480Y/277V metal enclosed switchgear is widely used in commercial buildings and campuses, industrial manufacturing facilities, data centers and colocation environments, utility and infrastructure projects, and healthcare facilities. Its 3-phase configuration efficiently powers heavy loads including HVAC systems, large motors, server infrastructure, and process equipment where reliable, code-compliant power distribution is essential.

Yes. DEI Power builds service entrance switchgear, SES sections, and meter mains to approved utility specifications as required by local utility standards. Customers must speak with a specialist before ordering these products to ensure configurations meet their utility's exact requirements. Contact DEI Power at (866) 773-8050 or sales@deipower.com to initiate a custom specification order.