Circuit Breakers

Used, Tested, and Refurbished Circuit Breakers

Looking for reliable circuit breakers? EMSCO has you covered! With over 70 years in the business, we specialize in high-quality used, tested, and refurbished circuit breakers. Our extensive inventory includes molded & insulated case circuit breakers, air circuit breakers, vacuum circuit breakers, and motor circuit protectors. Let us help you find the perfect solution for your electrical needs.

Molded and Insulated Case Circuit Breakers

EMSCO offers the largest selection of molded and insulated case circuit breakers on the market. Our vast inventory features trusted brands like Square D, GE, ITE/Siemens, Cutler-Hammer, Westinghouse, and Federal Pacific. We provide a range of options, from single-pole to three-pole breakers, available from 15 to 5000 amps and 120 to 600 volts.

• Brands Available: Square D, GE, ITE/Siemens, Cutler-Hammer, Westinghouse, Federal Pacific, and more
• Range: 15-5000 amps, 120-600 volts
• Options: 1, 2, and 3 poles
• Extras: Test reports for all refurbished and tested breakers; installation hardware kits are also available.

Air Circuit Breakers

Our collection of new, used, and refurbished air circuit breakers includes trusted names like General Electric, Square D, Westinghouse, Allis-Chalmers, and ABB. EMSCO stocks breakers from 200 to 5000 amps with multiple functions (Long-Time, Short-Time, Instantaneous, and Ground Fault), covering a wide range of configurations, including LI, LS, LSI, LIG, LSIG, and SI.

• Options: 200-5000 amps with functional combinations for versatile applications
• AC Pro Retrofits: Available for many brands
• Quality Guarantee: All refurbished air breakers come with test reports and are backed by a 1-year warranty.

Vacuum Circuit Breakers

For vacuum breakers, look no further. We carry products from GE, Cutler-Hammer, Westinghouse, and Square D, with ratings from 1200-3000 amps and voltages from 2400V up to 38KV. Need vacuum bottle testing? EMSCO provides this as an additional service to ensure optimal performance.

• Range: 1200-3000 amps; 2400V up to 38KV
• Brands: GE, Cutler-Hammer, Westinghouse, Square D
• Service: Vacuum bottle testing is available on request.

Motor Circuit Protectors

EMSCO stocks a full range of motor circuit protectors from leading brands like Cutler-Hammer, Square D, and ITE & Siemens, with models spanning from 1 to 1200 amps. Each unit is tested and verified, complete with test reports for peace of mind. For added functionality, we also offer models equipped with auxiliary switches.

• Brands: Cutler-Hammer, Square D, ITE & Siemens
• Range: 1-1200 amps
• Extras: Test reports and models with auxiliary switches available.

Contact us today to learn more about our extensive inventory of circuit breakers and how EMSCO can find the breaker you need.