Circuit breakers are a small but essential part of any power system. These electrical switches are designed to prevent damage caused to an electrical circuit by a short circuit or overcurrent/overload. They work by interrupting the flow of the current when a fault has been detected.

Defined by the NEC as any current in excess of the rated current of equipment or the ampacity of a conductor, overcurrent can occur in the event of short circuits, overloads, and arc and ground faults. These overcurrents can result in fires and damage to equipment, leading to unexpected downtime and schedule delays.

Prevent Overcurrent and Protect Your Equipment with Circuit Breakers from RESA Power

Protecting your power systems from overcurrent is crucial to prevent damage and ensure safety. That’s why RESA Power has a vast inventory of circuit breakers from all manufacturers. When you choose RESA Power as your circuit breaker supplier, you can rely on us to have the right component for your needs, whether it’s a new, hard-to-find, or used circuit breaker.

We provide various circuit breakers, including miniature, molded case, and insulated case circuit breakers, to keep your equipment secure and protected. We also have air breakers, vacuum breakers, load break switches, and other related parts in stock to make it easy for you to source everything you need from one reliable circuit breaker company. Trust RESA Power to assist in preventing overcurrent and safeguarding your valuable equipment.

Circuit Breakers We Provide

  • Air Circuit Breakers from 600V-15000V
  • Vacuum Circuit Breakers from 5000V-34000V
  • Insulated Case Circuit Breakers from 800A-4000A
  • Molded Case Circuit Breakers – new and used, tested
  • Low Voltage Circuit Breaker -over current protection upgrades to state of the art protection
  • High Voltage Circuit Breakers
  • 24-hour emergency service

Circuit Breakers: New vs. Refurbished & Used

Whether you’re looking for brand-new, refurbished, or used circuit breakers, it’s important to choose the right ones for your system to ensure optimum performance and safety. New circuit breakers are a great choice if you’re looking for the latest technology and the highest level of reliability. They are manufactured to meet current industry standards and often come with OEM warranties. However, they can be expensive and may require longer lead times for delivery.

Refurbished Circuit Breakers

Refurbished circuit breakers are a cost-effective alternative to buying new ones. They are disassembled, cleaned, and tested to ensure they meet industry standards and are free of defects. Refurbished breakers can provide reliable performance at a lower cost than new breakers, but it’s important to choose a reputable supplier to ensure the quality of the product.

Used Circuit Breakers

Used circuit breakers are also an option for those on a tight budget, but they come with more risks than new or refurbished breakers. It’s important to thoroughly inspect used circuit breakers to ensure they are in good condition and meet industry standards. Buying from a reputable supplier can help mitigate some of the risks associated with used breakers.

RESA Power: Your Trusted Circuit Breaker Supplier

When it comes to your power system’s critical components, such as circuit breakers, it is crucial to have a reliable and knowledgeable supplier to assist you. That’s where RESA Power comes in. With decades of experience in the power systems industry, we are a trusted source for circuit breaker manufacturers and suppliers.

We offer a vast range of stock, ensuring that you always have access to the specific circuit breaker you need. Our numerous system centers make it easy for you to get in touch with a professional who can help you find what you’re looking for. When it comes to circuit breakers, there’s no one better equipped to help you than RESA Power.


With distribution and manufacturing centers located across the United States, RESA provides service and support to clients in every major metropolitan area.