Custom Electrical Distribution Panels Built to Spec

Get custom electrical distribution panels engineered for your exact layout, voltage, enclosure, and compliance requirements. DEI Power supports contractors, engineers, and facility teams with UL 891-certified solutions, fast fulfillment, and clear submittals that help reduce delays, change orders, and installation issues on critical power projects.

Custom electrical distribution panel assembly

Our Custom Electrical Distribution Panel Services

Engineered power distribution solutions for commercial, industrial, utility, and mission-critical applications.

Custom Switchgear

Built-to-spec switchgear for critical power projects with rating guidance, enclosure selection, compliance documentation, and coordinated configurations that reduce field adjustments and schedule risk.

Service Entrance Gear

Heavy-duty service entrance switchgear from 400 to 4000 amps, assembled with Siemens components and designed for code-compliant, reliable power distribution in demanding facilities.

Remote Power Panels

High-density remote power panels for branch circuit distribution, offering scalable expansion, integrated monitoring, and service-friendly access for data centers and critical infrastructure.

Engineering Support

Application-focused engineering support helps align layouts, ratings, and integration details with project requirements for smoother installation and dependable long-term performance.

Design Engineering

Collaborative design and engineering services develop production-ready schematics, coordinated layouts, and submittals that support approval, fabrication, and installation accuracy.

Switchgear Supply

Specification-reviewed switchgear supply with faster fulfillment, nationwide shipping coordination, and documentation support for contractors and procurement teams managing time-sensitive jobs.

Engineered To Spec

Built for Performance, Compliance, and Speed

Custom electrical distribution panels from DEI Power are designed around your project requirements, not off-the-shelf limitations. From amperage and voltage to enclosure type and documentation, each solution is configured for reliable integration, code compliance, and long-term serviceability. With in-house engineering, domestic manufacturing, and rapid fulfillment support, DEI Power helps keep critical projects moving with fewer revisions and less downtime risk.

Engineered switchgear and panel design review
Trusted Power Partner

Project Results

See how engineered distribution solutions help critical facilities stay on schedule and operate reliably.

"Working with DEI Power has been a game-changer for our operations. Their custom panelboards are expertly built, and the in-house bus bar manufacturing…"

Scott L.
The DEI Power Difference

Why Choose DEI Power?

DEI Power combines engineering precision, manufacturing control, and responsive project support for demanding power distribution applications.

Built To Spec

Panels are configured to your layout, voltage, enclosure, and application requirements for cleaner field integration.

Fast Fulfillment

Ontario-based inventory and in-house production help reduce delays on time-sensitive commercial and industrial projects.

Certified Quality

UL 891-certified solutions and Siemens OEM approval support dependable performance and documentation confidence.

Project Support

Engineering guidance, submittals, and configuration review help teams avoid change orders and installation setbacks.

Meet The DEI Team

Experienced specialists behind every custom power solution.

DEI Power has spent more than a decade supporting commercial, industrial, and utility projects with reliable custom switchgear and power distribution equipment. Operating from a 50,000 sq. ft. facility in Ontario, California, the company combines in-house manufacturing, engineering support, and fulfillment capabilities to keep complex projects moving. Their team focuses on building UL 891-certified solutions that match exact job requirements while simplifying submittals, approvals, and installation planning. As an approved Siemens OEM, DEI Power brings technical precision and dependable component integration to every build. The company’s vision is to deliver code-compliant, serviceable electrical distribution systems that reduce risk, support uptime, and give contractors, engineers, and facility teams greater confidence from design through deployment.

10+ YearsSupporting commercial, industrial, and utility power projects.
50,000 Sq. Ft.Ontario facility for manufacturing, assembly, and fulfillment.
Nationwide ServiceShipping coordinated across the U.S. for critical projects.

Frequently Asked Questions

What types of custom electrical distribution panels do you build?

DEI Power supports a range of custom power distribution solutions, including low-voltage switchgear, service entrance switchgear, remote power panels, and related engineered assemblies. Configurations can be tailored to project requirements such as amperage, voltage, enclosure type, component selection, and installation conditions. The goal is to deliver equipment that fits the application, supports code compliance, and integrates cleanly in the field.

Are your custom panels UL certified?

Can you build panels to my exact specifications?

Do you provide engineering and design support?

How quickly can custom electrical distribution panels ship?

Do you ship nationwide?

What industries are these panels used in?

Do your products include warranty coverage?

Still Need Project Guidance?

Talk with our team about specs, lead times, and documentation.

Nationwide Service Coverage

DEI Power supports customers across the U.S. with coordinated fulfillment and responsive project assistance.

Nationwide

Service Area

24/7 Phone Access

Availability

Ontario, CA

Fulfillment Hub

Need Delivery To Your Project?

Confirm shipping, lead times, and support for your location.

Certified & Trusted

Awards and Recognition

UL 891 certification badge

UL 891 Certified

Certified for compliant low-voltage switchgear.

Approved Siemens OEM badge

Siemens OEM Approved

Approved integration with Siemens components.

USA manufactured power equipment badge

USA Manufacturing

Domestic production supports sourcing requirements.

Request Your Custom Panel Quote

Share your project requirements, ratings, and timeline. Our team will review specifications and help you identify the right custom power distribution solution.

Contact Us Today

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.