Circuit Breakers

National Circuit Breaker stocks a wide variety of Molded Case, Insulated Case, Low Voltage Power Circuit Breakers, Medium Voltage Air and Vacuum Circuit Breakers, Gas, Substation, and Oil Circuit Breakers including new, used and reconditioned breakers. Low and medium voltage circuit breakers are available from a wide variety of manufacturers like General Electric, Westinghouse, ITE and other leading providers. It’s Friday Night and you need a Breaker, please give us a call we want to help.

  • Low Voltage Breakers

    Low Voltage Breakers

    National Circuit Breaker stocks a wide variety of low voltage air circuit breakers from…

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  • Medium Voltage Breakers

    Medium Voltage Breakers

    NCB stocks a wide variety of medium voltage circuit breakers for both air and…

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  • Molded Case Breakers

    Molded Case Breakers

    We stock new, surplus, obsolete and reconditioned industrial-class molded case circuit breakers (mccb) made…

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  • Insulated Case Breakers

    Insulated Case Breakers

    We are insulated case circuit breaker experts... we've worked with them for decades, and…

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