OEM Power Distribution Equipment

An OEM (Original Equipment Manufacturer) is a company authorized to manufacture products using another brand's components or under their technical approval. DEI Power is a Siemens Approved OEM, meaning they are authorized to build UL 891-certified switchboards, switchgear, and power distribution assemblies using genuine Siemens parts, meeting the same standards as factory-direct equipment.

DEI Power's OEM power distribution equipment is available in amperages from 400A to 4000A and voltage configurations including 120/240V, 208Y/120V, 240V, 480V, 480Y/277V, and 415/240V. Both single-phase and three-phase options are available across switchgear, switchboards, panelboards, meter mains, SES, and remote power panels.

Yes. All products are UL 891 certified low-voltage switchgear assemblies, meeting NEC code requirements. They are also EUSERC Approved and comply with UBC, CBC, and IBC seismic zone requirements. These certifications are essential for utility interconnection, commercial construction permits, and critical infrastructure deployments.

All products are available in NEMA 1 (indoor) and NEMA 3R (outdoor, weather-resistant) enclosures. NEMA 3R enclosures are suitable for exterior installations exposed to rain, sleet, and ice—making them ideal for outdoor utility pads, rooftop applications, and exposed service entrance locations.

Yes. Service entrance switchgear, switchboards, meter mains, and SES (Service Entrance Sections) must be built to approved utility specifications. DEI Power's products are EUSERC Approved and built to meet utility requirements. Customers are encouraged to call a specialist to confirm applicable utility standards before ordering.

DEI Power ships most in-stock orders within 1 business day from their 50,000 sq. ft. Ontario, California facility, with delivery in 3–5 business days. Free shipping is included on all orders. Built-to-order configurations have typical lead times of 4–6 weeks—significantly faster than the industry standard of 16+ weeks.