Switchgear Supply
Specification-driven switchgear supply with rating guidance, enclosure selection, submittals, and compliance documentation to reduce change orders, field adjustments, and schedule risk on critical power projects.
DEI Power delivers custom switchboards engineered for commercial, industrial, and mission-critical facilities that need dependable, code-compliant power distribution. From specification review and in-house engineering to UL 891-certified manufacturing and fast fulfillment, we help contractors, engineers, and facility teams reduce delays, avoid costly field changes, and keep complex electrical projects moving with confidence.

Custom-engineered switchboard solutions for specification-driven power distribution, fast fulfillment, and compliant installation across demanding commercial and industrial applications.
Specification-driven switchgear supply with rating guidance, enclosure selection, submittals, and compliance documentation to reduce change orders, field adjustments, and schedule risk on critical power projects.
In-house design and engineering services develop production-ready layouts, schematics, and coordinated equipment selections that support code compliance, installation efficiency, and long-term serviceability.
Heavy-duty service entrance switchgear from 400A to 4000A, built with Siemens components and UL-listed assemblies for dependable protection in commercial, industrial, and utility applications.
PowerForge low-voltage switchgear supports scalable distribution, safe integration, and easier maintenance for facilities requiring reliable performance and streamlined submittal approval.
PowerMaxx switchgear is designed for higher-capacity systems that need coordinated protection, stable load management, and durable construction across complex electrical infrastructure.
Application-focused engineering support helps configure custom layouts, ratings, and system integration details so equipment aligns with project requirements and existing infrastructure.
Custom switchboards from DEI Power are built to match project specifications, voltage requirements, enclosure needs, and installation conditions without sacrificing speed or compliance. Backed by in-house engineering, UL 891-certified manufacturing, and Siemens OEM approval, each solution is designed to simplify procurement, support submittal approval, and deliver dependable long-term performance for commercial, industrial, utility, and mission-critical facilities.

See how dependable engineering, compliance, and fulfillment help power projects stay on track.
We combine manufacturing control, engineering expertise, and compliance-focused support for complex power distribution projects.
UL 891-certified switchboards built for dependable performance, safety, and code-compliant installation.
Approved Siemens OEM status supports trusted components, accurate configurations, and reliable electrical performance.
A 50,000 sq. ft. Ontario facility supports rapid builds, stocked supply, and fewer schedule delays.
In-house engineering helps contractors and engineers align layouts, ratings, and documentation before fabrication.
Experienced specialists supporting complex power distribution projects.
DEI Power has spent more than 10 years building reliable switchgear and custom switchboards for commercial, industrial, and utility applications. Operating from a 50,000 sq. ft. facility in Ontario, California, the company combines in-house manufacturing, engineering support, and responsive fulfillment to help customers keep demanding projects on schedule. Their team works closely with contractors, engineers, procurement groups, and facility teams to refine specifications, prepare submittals, and deliver equipment built for real-world installation conditions. As an approved Siemens OEM producing UL 891-certified switchboards, DEI Power focuses on precision, compliance, and long-term reliability. The company’s vision is simple: make complex power distribution sourcing easier, faster, and more dependable for customers who cannot afford downtime or avoidable delays.
DEI Power manufactures custom switchboards and related switchgear solutions for commercial, industrial, utility, and mission-critical applications. Capabilities include low-voltage switchgear, service entrance switchgear from 400A to 4000A, engineered configurations, and specification-based assemblies built around project voltage, enclosure, layout, and compliance requirements. Each system is supported with documentation, submittals, and engineering coordination to improve installation readiness.
Talk with our team about specs, lead times, and compliance.
DEI Power supports contractors, engineers, and facility teams with nationwide switchboard manufacturing and project coordination.
Nationwide
Service Area
24/7 Phone Availability
Support Access
Ontario, CA
Fulfillment Hub
Confirm shipping, support, and project coverage with our team.
Verified low-voltage switchgear compliance standard.
Approved manufacturer using Siemens components.
Supports domestic sourcing project requirements.
Share your project requirements, ratings, and timeline, and our team will help you identify the right compliant solution.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.