Electrical Circuit Breakers

Here at JDM Supply we supply Electrical Circuit Breakers & circuit breakers of all the major brands.
Along with circuit breakers, we provide fuses, switches, bus plugs and motor control.

Reliable Electrical Circuit Breakers for Every Application

Electrical circuit breakers are more than just components inside a panel — they’re the frontline defenders of your electrical system. Whether you’re managing a residential renovation, a large-scale industrial site, or keeping commercial buildings up to code, circuit breakers ensure safety, uptime, and efficiency. That’s why finding a dependable supply source for electrical circuit breakers is non-negotiable. Welcome to JDM Supply — your trusted provider of brand-name circuit breakers, fuses, switches, bus plugs, and motor control equipment.

We understand what matters most when you’re sourcing electrical circuit breakers: dependability, fast shipping, wide selection, and knowledgeable support. Based in Mesa, Arizona, JDM Supply proudly delivers across the Phoenix Metroplex and ships nationwide — always with free shipping on orders of $50 or more. Our customers trust us to supply electrical components that meet or exceed safety standards, and we’re proud to support contractors, facility managers, electricians, and maintenance teams across the country.

Why Electrical Circuit Breakers Are Critical for Safety and Performance

At their core, electrical circuit breakers protect people and property. These devices interrupt current flow after a fault, preventing overheating, fires, and equipment damage. Whether you’re working with 120 volts in a home or 480 volts in an industrial plant, electrical circuit breakers are the gatekeepers that keep your operations safe.

Faults happen. Lightning strikes, short circuits, or overloads are not uncommon in modern electrical environments. If you don’t have reliable circuit protection, those faults can spiral into expensive outages or even life-threatening situations. Electrical circuit breakers ensure that when something goes wrong, the system shuts down before the damage begins.

When you partner with JDM Supply, you’re not just buying components — you’re investing in peace of mind.

The Right Electrical Circuit Breaker for the Job

There’s no one-size-fits-all when it comes to electrical circuit breakers. Choosing the right type requires understanding the application, voltage, current load, and system design.

• Miniature Circuit Breakers (MCBs): Common in residential and light commercial applications, these are ideal for low-energy circuits.
• Molded Case Circuit Breakers (MCCBs): Designed for larger loads, often used in commercial and industrial environments.
• Ground Fault Circuit Interrupters (GFCIs): Protect people from electrical shock by shutting off current when a ground fault is detected.
• Arc Fault Circuit Interrupters (AFCIs): Specifically designed to prevent electrical fires caused by arc faults.
• Air Circuit Breakers, Oil Circuit Breakers, and Vacuum Circuit Breakers: Industrial-grade solutions for high-voltage installations.

At JDM Supply, we offer all of these options from the top brands you trust — whether you need a Siemens breaker for a panel upgrade, a Square D for a retrofit project, or a Cutler-Hammer replacement for an old MCCB. With us, it’s easy to find exactly what you need.

Top Brands You Know and Trust

We carry a wide selection of electrical circuit breakers from all the major brands in the industry, including:

• Siemens
• Eaton/Cutler-Hammer
• Square D by Schneider Electric
• GE Industrial
• ABB
• ITE

Each brand brings its own strengths to the table, and we make it easy to compare options, find direct replacements, or upgrade to newer models. Need help identifying the exact model or amp rating? Our experts are here to help.

Where Electrical Circuit Breakers Are Used Every Day

Electrical circuit breakers are not just for electrical contractors. Here are just a few examples of industries and projects where JDM Supply makes a difference:

• Facility Management: Keeping commercial buildings safe and code-compliant.
• Industrial Manufacturing: Reliable circuit protection to avoid downtime and costly damage.
• Construction: New builds, tenant improvements, and system upgrades.
• Renewables and Solar: Managing load safely in hybrid or grid-tied systems.
• Education and Healthcare Facilities: Where safety and continuous uptime are non-negotiable.
• Agricultural and Rural Applications: Powering irrigation systems, silos, and heavy equipment.
• Residential Projects: Renovations, remodels, and energy-efficiency upgrades.

No matter where electrical power flows, electrical circuit breakers are essential.

Your Local Source with National Reach

Being based in Mesa, Arizona gives us a unique advantage. We’re able to serve customers across the Phoenix Metroplex with quick, reliable delivery. Whether you’re in Scottsdale, Tempe, Chandler, or Glendale — we’ve got you covered.

But we don’t stop there.

Nationwide free shipping on orders of $50 or more means contractors, engineers, and purchasing managers from coast to coast trust JDM Supply as their go-to source for electrical circuit breakers and more. Our products ship fast, so you can stay on schedule and avoid costly downtime.

Support That Goes Beyond the Sale

When you call or email JDM Supply, you’re not speaking to a script. You’re talking to real people with real knowledge. Whether you need a hard-to-find part, a direct replacement for an obsolete breaker, or a recommendation on what fits best for your panel — we’re here.

We know the difference between a THQP and a THQL. We understand the load demands of a commercial kitchen versus a server room. And we know how to get you the right part — fast.

Need a technical datasheet? Want to confirm compatibility before you order? Looking for tips on identifying the right amp rating? We’re here to help.

Electrical Circuit Breaker Safety and Compliance

Safety isn’t optional when it comes to electricity. Electrical circuit breakers help you meet local and national codes while protecting both your equipment and the people who use it. The National Electrical Code (NEC) outlines standards for breaker selection and placement. Using certified, listed, and properly rated breakers ensures that your installation passes inspection and remains compliant over time.

For more on safety and regulations, we recommend checking the National Fire Protection Association (NFPA), which publishes the NEC. Additionally, the U.S. Consumer Product Safety Commission provides recall information and consumer safety updates for electrical products.

Modern Advancements in Electrical Circuit Breakers

As technology continues to evolve, so do circuit breakers. Today’s smart breakers offer features like:

• Remote monitoring and tripping
• Integration with building management systems
• Load tracking and analytics
• Wireless control

While not every application requires these capabilities, modern circuit breakers can bring greater visibility, efficiency, and even energy savings to complex electrical systems. At JDM Supply, we stay current on what’s available so that you always have access to the latest innovations in electrical circuit breakers.

Avoid the Headache of Sourcing Elsewhere

We get it. You don’t have time to jump through hoops, wait weeks for parts, or dig through unorganized inventory. That’s why we built our system around fast turnaround, transparent stock updates, and expert support.

With JDM Supply, you don’t need to worry about:

• Inconsistent part numbers
• Backordered SKUs without updates
• Poor-quality knockoffs
• Overpriced markups
• Unreliable customer service

Instead, you get what you need, when you need it, from a supplier who values your time and understands your business.

Why Electrical Circuit Breakers from JDM Supply Just Make Sense

Let’s face it — you have choices. But not every supplier is created equal. When you order from JDM Supply, you’re partnering with a team that knows electrical gear inside and out. We’re not a big box warehouse; we’re specialists who live and breathe circuit protection.

Whether you’re ordering a single breaker for a panelboard or stocking up for a full site buildout, we make it simple, fast, and affordable.

• Free shipping on all orders over $50
• Top brands in stock
• Expert support from real humans
• Fast, reliable delivery throughout the Phoenix Metroplex
• Nationwide shipping with transparent tracking

JDM Supply

When it comes to electrical circuit breakers, you can’t afford to gamble with safety, timelines, or quality. You need reliable products, fast turnaround, and a team that has your back. That’s exactly what you get with JDM Supply.

We’re proud to serve contractors, electricians, engineers, facility managers, and project teams who expect more from their suppliers. Located in Mesa, Arizona, we deliver across the Phoenix Metroplex — and nationwide with free shipping on all orders of $50 or more.

Need fuses, switches, motor control, or bus plugs? We’ve got you covered. Looking for a specific breaker brand or a hard-to-find part? Just give us a call.

Here at JDM Supply, we don’t just sell electrical circuit breakers — we help you build safer, smarter, and more efficient electrical systems.

JDM Supply

Visit Our Store or Give us a Call

Free Delivery in the Phoenix Metroplex

Free Ground Shipping on Orders of $50.00 or more

1815 West 1st Ave #139
Mesa, AZ 85202

OUR HOURS
Monday – Friday: 6:30am – 3:30pm
After Hours Service Available