400 Amp Panelboards

400 Amp Panelboards In-Stock Now

Need 400 amp panelboards fast for a service upgrade, expansion, or replacement? We keep high-demand panelboard assemblies in stock and ready to ship from our 50,000 sq. ft. Ontario, California warehouse, so you can stay on schedule, reduce downtime, and avoid long lead times.

800 Amp Panelboards

400 Amp Panelboards In-Stock Now

Need 400 amp panelboards fast for a service upgrade, expansion, or replacement? We keep high-demand panelboard assemblies in stock and ready to ship from our 50,000 sq. ft. Ontario, California warehouse, so you can stay on schedule, reduce downtime, and avoid long lead times.

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Starting at $9,000

Our 400 amp panelboards start at $9,000, including free shipping and fast delivery in 3–5 business days. Factory-direct pricing ensures competitive costs without distributor markups, built to UL standards and ready for your project.

In-stock now

400 amp panelboards tailored for your projects requirements

Get 400 amp panelboards configured for your project and quoted fast. Our panelboards use Siemens components, meet applicable UL requirements, and include a one-year warranty for added protection. We help verify specs, confirm availability, and support smoother approvals from submittals through installation.

One-Year Warranty on all equipment

UL 891 Certified Switchgear

Meets All EUSERC & Utility Standards

Certified Siemens OEM

In-stock now

400 amp panelboards tailored for your projects requirements

Get 400 amp panelboards configured for your project and quoted fast. Our panelboards use Siemens components, meet applicable UL requirements, and include a one-year warranty for added protection. We help verify specs, confirm availability, and support smoother approvals from submittals through installation.

Fast Lead Times

In-stock inventory that helps you avoid delays

Every week, projects get pushed back because panelboards are unavailable, incorrectly specified, or delayed during procurement. Our team is built to support time-sensitive schedules with a smooth quoting process, reliable communication, and practical guidance that keeps your project moving forward.

The advantage of readily available panelboards

Where data center panelboards are commonly used

Designed for controlled loads and critical circuits

These panelboards are optimized for distributing power to targeted loads within data center environments. Organized branch layouts, predictable load management, and coordinated protection help maintain stability while supporting ongoing changes to IT and facility infrastructure.

Specifications

Configurations we offer

With reliable performance and precision engineering, we ensure your electrical systems are supported with the exact power capacity you need. We offer complete switchgear solutions including ranging from 400 to 4000 amps.

Precision-built

Get the right 400 amp panelboards for your project

When purchasing 400 amp panelboards, you’re choosing more than an amp rating. The right panelboard impacts electrical safety, load management, inspection approval, and long-term serviceability for your facility.

We help contractors, facility teams, and project managers source properly configured switchgear for:

Manufactured in United States

Manufactured in the United States and powered by years of experience

Our products are proudly designed and engineered in the United States. Because we don’t rely on overseas manufacturing, international tariffs don’t affect our pricing. This allows us to offer consistent, competitive prices while delivering top-quality, American-made solutions.

FAQs

Frequently Asked Questions

These FAQs cover key design, specification, and procurement considerations for the panelboards we have in stock now.

Data center panelboards are used to distribute branch circuit power to servers, racks, cooling systems, and supporting IT equipment. They help organize circuits, manage loads, and maintain reliable power distribution in critical facilities.

 

Data center panelboards are designed for higher reliability, organized circuit layouts, and continuous operation. They support higher circuit density, clear labeling, and configurations suited for mission-critical environments where uptime is essential.

 

Yes. Data center panelboards are manufactured to meet UL and NEC requirements and are designed to support inspection approval and safe operation in commercial and industrial data center environments.

Data center panelboards are available across a wide range of amperages to support different facility sizes, from smaller server rooms to large-scale data center deployments.

 

Yes. Data center panelboards are commonly used for expansions, upgrades, and retrofits, providing flexible configurations that allow facilities to add circuits and capacity without disrupting existing operations.

 

In-stock data center panelboards are available to support urgent deployments and time-sensitive projects, helping reduce lead times and keep data center construction and expansion schedules on track.

Data center panelboards are designed to support organized circuit distribution, proper load balancing, and coordinated protection, helping maintain stable power delivery and reduce the risk of outages in mission-critical environments.

 

Contact Us

Get pricing for 400 amp panelboards

If you’re under schedule pressure or need fast bid pricing, we can help. Request a quote and we’ll confirm availability, configuration, and shipping timelines. We support contractors, facilities, and procurement teams, and can help verify specs when needed.

Fastest lead times

Fastest lead times guaranteed with local manufacturing

Emergency and overnight shipping

We deliver California-manufactured switchgear with the quickest turnaround times in the industry. By keeping production local, we eliminate delays and ensure faster delivery statewide. Our streamlined process guarantees UL 891 certified low voltage switchgear arrives on schedule, ready for installation.

About Us

Contact Us

Office Location

1745 S. Bon View Ave
Ontario CA 91761

Contact Info

Phone: +1 (866) 645-1281
Email: sales@deipower.com

The Importance of UL 891 Switchgear in Modern Facilities

The Future of Switchgear in Data Centers