Custom Switchboard Manufacturer in Ontario, California

A custom switchboard manufacturer designs and builds electrical distribution equipment to match a project’s exact voltage, amperage, enclosure, layout, and application requirements. This typically includes engineering review, component coordination, fabrication, compliance documentation, and submittal support. The goal is to deliver a switchboard that fits the installation, meets code, and performs reliably in commercial, industrial, or utility environments.

Yes. DEI Power manufactures UL 891-certified low-voltage switchgear and switchboards, which helps support code compliance, inspection readiness, and long-term reliability. UL certification confirms the equipment is built to recognized safety and construction standards. For many contractors, engineers, and facility teams, that means fewer approval issues, clearer documentation, and greater confidence during installation and operation.

Yes. DEI Power specializes in built-to-spec electrical boards tailored to project requirements such as amperage, voltage, enclosure type, layout, and integration needs. The team works with drawings, specifications, and application details to align the final assembly with field conditions and approval requirements. This custom approach helps reduce rework, change orders, and installation conflicts later in the project.

Custom switchboards are commonly used in commercial buildings, industrial plants, manufacturing facilities, healthcare environments, data centers, utility infrastructure, and other mission-critical applications. These settings often require specific ratings, coordinated protection, and dependable power distribution. Custom-built equipment is especially valuable when standard configurations do not meet the project’s load demands, footprint constraints, or compliance requirements.

Lead times vary by configuration, but DEI Power supports faster fulfillment through in-house manufacturing and inventory operations in Ontario, California. Many stocked orders ship within 1 business day, while some custom or larger configurations may require additional production time. Free shipping is available on qualifying orders delivered in 3 to 5 business days, helping reduce schedule pressure on active projects.

Yes. DEI Power provides engineering support during the planning and configuration stage to help confirm ratings, layouts, component selection, and integration with existing systems. This early review improves drawing accuracy, supports submittal preparation, and helps identify issues before fabrication begins. For complex projects, that upfront coordination can save time and reduce costly field adjustments during installation.

Yes. DEI Power offers U.S.-manufactured and assembled solutions that can help align projects with domestic sourcing requirements, including Buy America Build America considerations. The team also supports documentation and configuration guidance to help procurement teams and engineers evaluate compliance needs. This is especially useful for public infrastructure, utility, and federally influenced projects with sourcing standards.

Yes. DEI Power supports customers across the United States with specification review, engineering guidance, documentation, and shipping coordination. While manufacturing and fulfillment are based in Ontario, California, the company works with contractors, engineers, procurement teams, and facility operators nationwide. That allows customers to access custom switchboard solutions without sacrificing responsive support or delivery coordination.