400A 208Y/120VAC 3-Phase Panelboards — NEMA 12

NEMA 12 is an indoor enclosure rating that protects against dust, dirt, dripping non-corrosive liquids, and light splashing. It is suitable for industrial and commercial indoor environments where the panelboard may be exposed to airborne particulates or incidental moisture, but not direct water spray or outdoor weather conditions.

DEI Power's 400A panelboards support up to 60 branch circuits in the RPP configuration, with the broader panelboard lineup offering up to 84 circuits with optional branch circuit monitoring. The exact count depends on the breaker sizing and configuration selected for your specific load requirements.

Yes. All DEI Power 400A panelboards are UL 891 certified and UL Listed for safety and code compliance. They are also EUSERC Approved and meet UBC, CBC, and IBC seismic requirements for all seismic zones, making them suitable for projects across the United States including seismically active regions.

In-stock units ship within 1 business day from DEI Power's Ontario, California facility and arrive at the job site in 3–5 business days. Built-to-order and custom configurations carry a typical lead time of 4–6 weeks, which is significantly faster than the industry-standard 14–16 week lead times common among other manufacturers.

Yes. The 400A 208Y/120VAC 3-Phase panelboard is purpose-built for data center server rooms, colocation rows, edge compute pods, AI/GPU compute clusters, and hyperscale deployments. The 208Y/120V voltage configuration is the standard for IT and server rack power distribution in North American data center environments.

Yes. Optional branch circuit monitoring is available for DEI Power's 400A panelboard configurations. This allows facility teams and data center operators to monitor individual circuit loads in real time, supporting capacity planning, load balancing, and early detection of overloaded circuits in mission-critical environments.