Circuit Breakers

While our website showcases a large assortment of our products, it does not reflect the complete inventory of products currently available. For real-time availability and to ensure we can meet your specific needs, please contact our sales team at 1-800-328-1842. New products arrive daily and our knowledgeable staff are happy to assist you in locating the exact item(s) you need.

Used, Tested, and Refurbished Circuit Breakers

EMSCO is your one-stop-shop for all your circuit breaker needs. For over 70 years, we’ve specialized in offering a full range of used, tested, and refurbished circuit breakers. We offer the largest and widest selection of molded & insulated case circuit breakers, air circuit breakers, vacuum circuit breakers, and motor circuit protectors.

Molded and Insulated Case Circuit Breakers

We have the largest selection of molded and insulated case circuit breakers available anywhere. Our inventory includes all major brands including Square D, GE, ITE/Siemens, Cutler-Hammer and Westinghouse, Federal Pacific and many more with most famliy and frame size breakers available. Our huge inventory of molded case circuit breakers includes 1, 2 and 3 pole breakers ranging from 15-5000 amps, 120-600 volts and we provide test reports with all refurbished and tested breakers. Full hardware kits for installation are also available for purchase.

Air Circuit Breakers

Our new, used, refurbished air circuit breakers feature an extensive selection of manufacturers including General Electric, Square D, Westinghouse, Allis-Chalmers, and ABB. Available from 200-5000 amp and a variety of functions including Long-Time, Short-Time, Instantaneous, and Ground Fault and combinations thereof (LI, LS, LSI, LIG, LSIG, SI). Additionally, we provide AC Pro retrofits for many brands. All refurbished air breakers are tested and come with test reports and our guaranteed with our 1-year warranty.

Vacuum Circuit Breakers

Our selection of used vacuum breakers includes brands such as GE, Cutler-Hammer, Westinghouse, and Square D. Ranging from 1200-3000 amps and 2400 volts to 38KV. We also offer vacuum bottle testing as an added service available. Please contact our sales team for more information on this service.

Motor Circuit Protectors

We carry a complete selection of motor circuit protectors from leading manufacturers like Cutler-Hammer, Square D, ITE & Siemens, with models ranging from 1 to 1200 amps. All our used and refurbished motor control protectors are supplied with test reports to ensure their quality. We also offer models with auxiliary switches.