Energy » Circuit Breakers » Miniature Circuit Breakers (MCB)

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Used Miniature Circuit Breakers (Mcb)

  • Trusted Seller
    Eaton FAZ-C5/2-NA 2 Pole Circuit

    Eaton FAZ-C5/2-NA 2 Pole Circuit Breaker

    • Manufacturer: Eaton

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted PRIOR to your purchase. *Your purchase includes a 30 ...

    $30 USD
    Suwanee, GA
  • Trusted Seller
    LOT OF 8 - Square

    LOT OF 8 - Square D QO120 120/240V Plug-in Miniature Circuit Breaker STOCK G738A 785901400103

    • Manufacturer: Square D
    • Model: QO120

    LOT OF 8 - Square D QO120 120/240V Plug-in Miniature Circuit Breaker STOCK G738A

    $100 USD
    Montgomeryville, PA
  • Trusted Seller
    Eaton FAZ-D2/3-NA Circuit Breaker 2A,

    Eaton FAZ-D2/3-NA Circuit Breaker 2A, 3 Pole

    • Manufacturer: Eaton

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $45 USD
    Suwanee, GA
  • Trusted Seller
    ABB SU 201M-C20 Circuit Breaker

    ABB SU 201M-C20 Circuit Breaker 20A *NEW*

    • Manufacturer: ABB

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $35 USD
    Suwanee, GA
  • Trusted Seller
    ABB SU 201M-C20 Circuit Breaker

    ABB SU 201M-C20 Circuit Breaker 20A *NEW*

    • Manufacturer: ABB

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $40 USD
    Suwanee, GA
  • Trusted Seller
    Eaton FAZ-C10/3-NA Miniature Circuit Breaker,

    Eaton FAZ-C10/3-NA Miniature Circuit Breaker, 10 Amp, 3 Pole

    • Manufacturer: Eaton

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted PRIOR to auction close. Your purchase includes a 30 d...

    $65 USD
    Suwanee, GA
  • Siemens 5SY4350-5 MCB A50 Circuit

    Siemens 5SY4350-5 MCB A50 Circuit Breaker. 4B-51

    • Manufacturer: Siemens

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $45 USD
    Duncan, SC
  • Siemens 5SY4302-7 Miniature Circuit Breaker,

    Siemens 5SY4302-7 Miniature Circuit Breaker, 400V. 4D-48

    • Manufacturer: Siemens

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $59 USD
    Duncan, SC
  • Siemens 5SY4330-7 Miniature Circuit Breaker,

    Siemens 5SY4330-7 Miniature Circuit Breaker, 400V. 4D-48

    • Manufacturer: Siemens

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $178 USD
    Duncan, SC
  • Trusted Seller
    ABB ST201M-K2 Single Pole Circuit

    ABB ST201M-K2 Single Pole Circuit Breaker, Qty 10 *NEW*

    • Manufacturer: ABB

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $220 USD
    Suwanee, GA
  • Siemens 5SY4106-7 MCB C6 Miniature

    Siemens 5SY4106-7 MCB C6 Miniature Circuit Breaker. 4D-47

    • Manufacturer: Siemens

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $27 USD
    Duncan, SC
  • SIEMENS 5SY4 308-7 Miniature Circuit

    SIEMENS 5SY4 308-7 Miniature Circuit Breaker, 400V. 4D-48

    • Manufacturer: Siemens

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $68 USD
    Duncan, SC
  • Siemens 5SY63 MCB D4 Circuit

    Siemens 5SY63 MCB D4 Circuit Breaker. 4C-17

    • Manufacturer: Siemens

    Siemens 5SY63 MCB D4 Circuit Breaker. 4C-17 We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palmetto A...

    $48 USD
    Duncan, SC
  • Siemens 5SY62 MCB D6 Circuit

    Siemens 5SY62 MCB D6 Circuit Breaker. 4C-18

    • Manufacturer: Siemens

    Siemens 5SY62 MCB D6 Circuit Breaker. 4C-18 We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palmetto ...

    $35 USD
    Duncan, SC
  • Siemens 5SY63 MCB D32 Circuit

    Siemens 5SY63 MCB D32 Circuit Breaker. 4C-21

    • Manufacturer: Siemens

    Siemens 5SY63 MCB D32 Circuit Breaker. 4C-21 We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palmet...

    $35 USD
    Duncan, SC
23456

Overview

Circuit breakers are essential safety devices that protect electrical circuits from damage caused by overloads or short circuits. They automatically interrupt the flow of electricity when a fault is detected, preventing potential fires and equipment damage. Circuit breakers are used in residential, commercial, and industrial settings to ensure electrical safety and reliability.

FAQ

What should I consider when buying a used circuit breaker?

Check the breaker’s amperage rating, compatibility with your electrical system, and overall condition. Ensure it has been tested and certified for safety.

How do I ensure the circuit breaker is shipped safely to my location?

Use a transport service that specializes in delicate electrical components. Ensure the breaker is well-packaged and cushioned to prevent damage during transit.

What is the maintenance schedule for a circuit breaker?

Regular maintenance includes visual inspections for signs of wear or damage, testing for proper operation, and cleaning any dust or debris from the breaker. Consult the manufacturer’s manual for detailed maintenance intervals.