Siemens 4000A Breakers — 600V Power Distribution

All products in this lineup support multiple voltage configurations including 120/240V, 240V, 208Y/120V, 240/120V, 480V, 480Y/277V, and 415/240V. This flexibility allows the equipment to serve a wide variety of commercial, industrial, and utility power distribution systems across different facility types and grid interconnection requirements.

A switchboard distributes power within a facility from a main source to downstream circuits. Service entrance switchgear is specifically designed as the point where utility power enters a building, and it must meet additional utility-mandated specifications. DEI Power's service entrance products are EUSERC approved and must be built to the approved specifications of the serving utility, requiring specialist consultation before ordering.

Yes. All products are UL 891 certified for low-voltage switchgear and switchboard applications, UL listed assemblies, and EUSERC approved. They also meet UBC, CBC, and IBC seismic requirements for all seismic zones, making them suitable for deployment in earthquake-prone regions across the United States.

All products are available in NEMA 1 enclosures for standard indoor installations and NEMA 3R enclosures for outdoor or weather-exposed environments. This allows the same core equipment lineup to be deployed in indoor electrical rooms, rooftop applications, outdoor utility pads, and other exposed installations without requiring separate product lines.

Most orders ship within 1 business day from DEI Power's Ontario, California facility, with delivery in 3–5 business days nationwide. Free shipping is included on all orders. In rare cases where custom specifications require additional build time, shipping may take up to 5 business days. All products include a 1-year warranty.

Yes. Service entrance switchgear, SES sections, and meter main products must be built to approved utility specifications per utility standards. DEI Power's in-house engineering team provides specialist consultation to ensure each build meets the exact requirements of the serving utility. Customers should call to speak with a specialist and receive a custom quote before ordering these products.