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  • Square D QO115 15A 1-Pole

    Square D QO115 15A 1-Pole Plug-on Circuit Breaker. 4B-38

    • Manufacturer: Square D
    • Model: QO115

    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, ...

    $23 USD
    Duncan, SC
  • Square D QOB2100VH Plug-In Circuit

    Square D QOB2100VH Plug-In Circuit Breaker, 100A, 120/240V. 3E-30

    • Manufacturer: Square D

    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
  • Cutler Hammer WMTD2040 40A 2P

    Cutler Hammer WMTD2040 40A 2P 240V CIRCUIT BREAKER. 4G

    • Manufacturer: Cutler-Hammer

    Cutler Hammer WMTD2040 40A 2P 240V CIRCUIT BREAKER. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Pa...

    $79 USD
    Duncan, SC
  • GE TKM2Y1200 Circuit Interrupter Breaker,

    GE TKM2Y1200 Circuit Interrupter Breaker, 1200A 600V 2P. 4F-35

    • Manufacturer: GE

    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, ...

    $1,305 USD
    Duncan, SC
  • SIEMENS ETU776 WL TRIP UNIT

    SIEMENS ETU776 WL TRIP UNIT (WLETU776) w/3200A Rating Plug. 3C-49

    • 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, ...

    $2,453 USD
    Duncan, SC
  • SIEMENS ETU776 WL TRIP UNIT

    SIEMENS ETU776 WL TRIP UNIT (WLETU776) w/1600A Rating Plug 3C-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, ...

    $2,453 USD
    Duncan, SC
  • SIEMENS ETU776 WL TRIP UNIT

    SIEMENS ETU776 WL TRIP UNIT (WLETU776) w/800A Rating Plug. 3C-49

    • 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, ...

    $2,453 USD
    Duncan, SC
  • General Electric SSF20B220 STD Break

    General Electric SSF20B220 STD Break Circuit Breaker, 2000A, 600VAC. 1F-16.5

    • Manufacturer: GE

    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, ...

    $4,500 USD
    Duncan, SC
  • ABB OETL-NF2000 Main Cut-Off Breaker,

    ABB OETL-NF2000 Main Cut-Off Breaker, 2000A 480VAC. 1E-34

    • Manufacturer: ABB

    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, ...

    $9,450 USD

    Get financing

    Est. $186/mo

    Duncan, SC
  • SIEMENS HEM3M100 CIRCUIT BREAKER, 100A,

    SIEMENS HEM3M100 CIRCUIT BREAKER, 100A, 480V, 3POLE. 1D-65

    • 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, ...

    $540 USD
    Duncan, SC
  • Schneider Electric GV1-G09 690V 63A

    Schneider Electric GV1-G09 690V 63A Breaker Terminal Connector. 4E-2

    • Manufacturer: Schneider Electric

    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, ...

    $25 USD
    Duncan, SC
  • Siemens 5SY4302-7 MCB C2 Circuit

    Siemens 5SY4302-7 MCB C2 Circuit Breaker, 400V. 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, ...

    $23 USD
    Duncan, SC
  • Siemens 5SY4 201-7 C1 2P

    Siemens 5SY4 201-7 C1 2P Circuit Breaker, 400V. 4C-46

    • 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, ...

    $23 USD
    Duncan, SC
  • ABB SACE Tmax Circuit Breaker

    ABB SACE Tmax Circuit Breaker Accessory Knob. 4D-01

    • Manufacturer: ABB

    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, ...

    $23 USD
    Duncan, SC
  • SIEMENS 5SY4303-7 MCB C3 Circuit

    SIEMENS 5SY4303-7 MCB C3 Circuit Breaker, 400V. 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, ...

    $27 USD
    Duncan, SC
45678

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.