Circuit Breakers

Circuit Breakers

Circuit Breakers - Source rare and hard-to-find breakers with ease

At ARCA Supply, we know that circuit breakers are essential to safeguarding electrical systems, protecting them from overloads and short circuits. Whether you're managing a commercial facility, maintaining industrial equipment, or working on residential projects, having the right circuit breakers ensures uninterrupted performance and peace of mind.

Our selection of circuit breakers spans a wide range of applications, from heavy-duty air circuit breakers (ACBs) to compact miniature circuit breakers (MCBs). We offer leading brands like Eaton, Siemens, and Square D, known for their reliability and performance. Whatever your power management needs, you can find the perfect solution here at ARCA Supply.

Explore Our Circuit Breaker Categories:

  • Air Circuit Breakers (ACBs): Ideal for large-scale industrial applications, ACBs provide superior protection in high-current scenarios.
  • Din Rail Mounted Circuit Breakers: These breakers are designed for quick installation in compact spaces, making them perfect for modular setups.
  • Main Breakers: As a crucial part of any electrical system, main breakers ensure that circuits are effectively managed and protected from faults.
  • Miniature Circuit Breakers (MCBs): Designed for residential and commercial use, MCBs are essential for protecting lower power circuits from damage.
  • Molded Case Breakers (MCCBs): When high current protection is needed, MCCBs offer robust and durable performance.
  • Motor Circuit Protectors (MCPs): Specifically engineered to protect motors, MCPs offer fast response times to prevent equipment damage.
  • Circuit Breaker Accessories: From trip units to mounting kits, we stock a variety of accessories to enhance the functionality of your breakers.

Leading Brands We Carry:

At ARCA Supply, we carry a comprehensive lineup of top brands to ensure you get the best quality and reliability. Our inventory includes trusted names such as Eaton, Square D, Siemens, and General Electric. With over 2,600 Eaton products and hundreds from brands like ABB, Schneider Electric, and Leviton, you can be confident in finding exactly what you need.

Choose the Right Circuit Breaker:

When selecting a circuit breaker, factors such as current rating, voltage rating, and mounting style are critical. Our range includes options for:

  • Current Ratings: From 15A to 600A, ensuring the right protection for every application.
  • Voltage Ratings: With options ranging from 120V to 600V for both AC and DC applications.
  • Mounting Types: Choose from plug-on, DIN rail, or bolt-on mountings to match your installation requirements.

Why Choose ARCA Supply?

As a trusted distributor specializing in hard-to-find electrical components, we ensure that our circuit breakers meet the highest industry standards. Our commitment to the circular economy also means that unsold products are responsibly recycled, helping to reduce waste while supporting your projects.

Explore our extensive collection of circuit breakers today and find the perfect solution for your electrical system’s needs.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Eaton 66C1478G10 Miniature Circuit Breakers (MCBs) CH 1P 20A 240V 50/60Hz 1Ph EA Eaton 66C1478G10 Miniature Circuit Breakers (MCBs) CH 1P 20A 240V 50/60Hz 1Ph EA

    Eaton 66C1478G10 Miniature Circuit Breakers (MCBs) CH 1P 20A 240V 50/60Hz 1Ph EA

    MSRP $272.40
    Surplus $89.99
    Eaton 66C1478G10 Miniature Circuit Breakers (MCBs) CH 1P 20A 240V 50/60Hz 1Ph EA​ ARCA SKU:  C15-1003 Brand:  Eaton MPN:  66C1478G10 UPC:  786670008255 Shipping Weight:  0.50 lbs. Shipping...
    SKU:
    C15-1003
    Volts:
    240 V
    Amps:
    20 A
    Poles:
    1
    Frequency Rating:
    50/60 Hz
    Short Description:
    EATON CH ARC FAULT / GROUND FAULT CIRCUIT BREAKER
    Number of Poles:
    1
    Country of Origin:
    Dominican Republic
    MSRP $272.40
    Surplus $89.99
    Qty in Cart: 0
    Price:
    MSRP $272.40
    Surplus $89.99
    Subtotal:
  • Eaton 66C1488G12 Miniature Circuit Breakers (MCBs) BR 1P 15A 120V 50/60Hz 1Ph EA Eaton 66C1488G12 Miniature Circuit Breakers (MCBs) BR 1P 15A 120V 50/60Hz 1Ph EA

    Eaton 66C1488G12 Miniature Circuit Breakers (MCBs) BR 1P 15A 120V 50/60Hz 1Ph EA

    MSRP $490.00
    Surplus $71.78
    Eaton 66C1488G12 Miniature Circuit Breakers (MCBs) BR 1P 15A 120V 50/60Hz 1Ph EA​ ARCA SKU:  C15-2883 Brand:  Eaton MPN:  66C1488G12 UPC:  786670008217 Shipping Weight:  0.55 lbs. Shipping...
    SKU:
    C15-2883
    Volts:
    120 V
    Amps:
    15 A
    Poles:
    1
    Frequency Rating:
    50/60 Hz
    Short Description:
    EATON BR ARC FAULT / GROUND FAULT CIRCUIT BREAKER
    TS PIK:
    126287060
    Number of Poles:
    1
    Country of Origin:
    Dominican Republic
    MSRP $490.00
    Surplus $71.78
    Qty in Cart: 0
    Price:
    MSRP $490.00
    Surplus $71.78
    Subtotal:
  • Eaton 68C5010G01 Circuit Breaker Accessories EA Eaton 68C5010G01 Circuit Breaker Accessories EA

    Eaton 68C5010G01 Circuit Breaker Accessories EA

    MSRP $2,854.00
    Surplus $617.62
    SKU:  C15-9355 Brand:  Eaton MPN:  68C5010G01 UPC:   Shipping Weight:  18.00 lbs. Shipping Height:  5.00 In. Shipping Length:  18.00 In. Shipping Width:  16.00 In. Product...
    SKU:
    C15-9355
    Country of Origin:
    United States
    MSRP $2,854.00
    Surplus $617.62
    Qty in Cart: 0
    Price:
    MSRP $2,854.00
    Surplus $617.62
    Subtotal:
  • Eaton 68C6048G01 Circuit Breaker Accessories EA Eaton 68C6048G01 Circuit Breaker Accessories EA

    Eaton 68C6048G01 Circuit Breaker Accessories EA

    MSRP $145.37
    Surplus $90.13
    Eaton 68C6048G01 Circuit Breaker Accessories EA​ ARCA SKU:  C15-2025 Brand:  Eaton MPN:  68C6048G01 UPC:  786685284620 Shipping Weight:  0.55 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-2025
    Series:
    C
    Approval:
    UL
    Enclosure:
    NEMA 1/3R/12/4/4X
    Accessory Type:
    Operating Mechanism
    Switch Type:
    Molded Case
    Breaker Type:
    EG/JG/LG/GD/FD Frame
    Handle Type:
    Blue/Black Rotary
    Handle Included:
    Yes
    Handle to Device Connection:
    Variable Depth Shaft
    Short Description:
    EG/JG/LG/GD/FD-Frame, Blue/Black, Molded Case Switch, NEMA 1/3R/12
    Catalog:
    Eaton_14666_V4T2_539-V4T2_543_CAT.pdf
    Installation/Operator:
    Eaton_00688_INST.pdf
    CAD Drawing:
    Eaton_57568_1_CAD.pdf
    CAD Drawings:
    Eaton_57568_1_CAD.pdf
    MSRP $145.37
    Surplus $90.13
    Qty in Cart: 0
    Price:
    MSRP $145.37
    Surplus $90.13
    Subtotal:
  • Eaton 68C6048G03 Circuit Breaker Accessories Eaton 68C6048G03 Circuit Breaker Accessories

    Eaton 68C6048G03 Circuit Breaker Accessories

    MSRP $214.34
    Surplus $78.13
    Eaton 68C6048G03 Circuit Breaker Accessories​ ARCA SKU:  C15-3223 Brand:  Eaton MPN:  68C6048G03 UPC:  786685284644 Shipping Weight:  0.55 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-3223
    Volts:
    600 V
    Short Description:
    VARI-DEPTH HNDL S2 BLACK 4/4X(EG/JG/LG-GD/FD/JD/KD/LD/MDL)
    MSRP $214.34
    Surplus $78.13
    Qty in Cart: 0
    Price:
    MSRP $214.34
    Surplus $78.13
    Subtotal:
  • Eaton 68C6048G05 Circuit Breaker Accessories

    Eaton 68C6048G05 Circuit Breaker Accessories

    MSRP $174.01
    Surplus $64.59
    SKU:  C15-11805 Brand:  Eaton MPN:  68C6048G05 UPC:   Shipping Weight:  0.65 lbs. Shipping Height:  3.00 In. Shipping Length:  12.00 In. Shipping Width:  4.00 In. Product...
    SKU:
    C15-11805
    TS PIK:
    124954931
    MSRP $174.01
    Surplus $64.59
    Qty in Cart: 0
    Price:
    MSRP $174.01
    Surplus $64.59
    Subtotal:
  • Eaton 68C6048G41 Circuit Breaker Accessories EA

    Eaton 68C6048G41 Circuit Breaker Accessories EA

    MSRP $124.14
    Surplus $28.43
    Eaton 68C6048G41 Circuit Breaker Accessories EA​ ARCA SKU:  C15-5231 Brand:  Eaton MPN:  68C6048G41 UPC:  786685627359 Shipping Weight:  0.45 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-5231
    Series:
    C
    Approval:
    UL
    Enclosure:
    NEMA 1/3R/12
    Accessory Type:
    Operating Mechanism
    Switch Type:
    Molded Case
    Breaker Type:
    EG/JG/GC/GD/GMCP Frame
    Handle Type:
    Blue/Black Rotary
    Handle Included:
    Yes
    Handle to Device Connection:
    Variable Depth Shaft
    Short Description:
    EG/JG/GC/GD/GMCP Frame, Blue/Black, Molded Case Switch, NEMA 1/3R/12
    Catalog:
    Eaton_14666_V4T2_539-V4T2_543_CAT.pdf
    Installation/Operator:
    Eaton_00688_INST.pdf
    Country of Origin:
    France
    MSRP $124.14
    Surplus $28.43
    Qty in Cart: 0
    Price:
    MSRP $124.14
    Surplus $28.43
    Subtotal:
  • C15-11803

    Eaton 68C6048G43 Circuit Breaker Accessories

    MSRP $183.56
    Surplus $122.23
    SKU:  C15-11803 Brand:  Eaton MPN:  68C6048G43 UPC:   Shipping Weight:  0.45 lbs. Shipping Height:  3.00 In. Shipping Length:  7.00 In. Shipping Width:  6.00 In. Product...
    SKU:
    C15-11803
    TS PIK:
    125267044
    Short Description:
    Blue/Black, High Performance Through-The-Door, Handle for FD Frame Molded Case Circuit Breaker
    Catalog:
    Eaton_03771_V4T2_500_V4T2_512_CAT.pdf
    MSRP $183.56
    Surplus $122.23
    Qty in Cart: 0
    Price:
    MSRP $183.56
    Surplus $122.23
    Subtotal:
  • Eaton 68C6048G49 Circuit Breaker Accessories EA

    Eaton 68C6048G49 Circuit Breaker Accessories EA

    MSRP $89.62
    Surplus $23.45
    Eaton 68C6048G49 Circuit Breaker Accessories EA​ ARCA SKU:  C15-9415 Brand:  Eaton MPN:  68C6048G49 UPC:   Shipping Weight:  0.10 lbs. Shipping Height:  1.00 In. Shipping...
    SKU:
    C15-9415
    TS PIK:
    125267045
    Catalog:
    Eaton_03771_V4T2_498_V4T2_499_V4T2_511_V4T2_512_CAT.pdf
    Short Description:
    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY HANDLE MECHANISM, HIGH PERFORMANCE H
    Country of Origin:
    France
    MSRP $89.62
    Surplus $23.45
    Qty in Cart: 0
    Price:
    MSRP $89.62
    Surplus $23.45
    Subtotal:
  • Eaton 82B5279G03 Circuit Breaker Accessories Mounting Screw Kit

    Eaton 82B5279G03 Circuit Breaker Accessories Mounting Screw Kit

    MSRP $15.00
    Surplus $2.46
    Eaton 82B5279G03 Circuit Breaker Accessories Mounting Screw Kit​ ARCA SKU:  C15-4428 Brand:  Eaton MPN:  82B5279G03 UPC:   Shipping Weight:  0.05 Shipping Height:  1.00 In. Shipping...
    SKU:
    C15-4428
    Type:
    Mounting Screw Kit
    MSRP $15.00
    Surplus $2.46
    Qty in Cart: 0
    Price:
    MSRP $15.00
    Surplus $2.46
    Subtotal:
  • Eaton 8651C91G02 Circuit Breaker Accessories EA

    Eaton 8651C91G02 Circuit Breaker Accessories EA

    MSRP $454.00
    Surplus $225.63
    Eaton 8651C91G02 Circuit Breaker Accessories EA​ ARCA SKU:  C15-11029 Brand:  Eaton MPN:  8651C91G02 UPC:   Shipping Weight:  11.05 lbs. Shipping Height:  13.00 In. Shipping...
    SKU:
    C15-11029
    TS PIK:
    122753623
    MSRP $454.00
    Surplus $225.63
    Qty in Cart: 0
    Price:
    MSRP $454.00
    Surplus $225.63
    Subtotal:
  • Eaton 9253C03H06 Circuit Breaker Accessories Eaton 9253C03H06 Circuit Breaker Accessories

    Eaton 9253C03H06 Circuit Breaker Accessories

    MSRP $168.80
    Surplus $65.25
    Eaton 9253C03H06 Circuit Breaker Accessories​ ARCA SKU:  C15-2358 Brand:  Eaton MPN:  9253C03H06 UPC:  782114455449 Shipping Weight:  3.45 lbs. Shipping Height:  7.00 In. Shipping...
    SKU:
    C15-2358
    Volts:
    600 V
    Amps:
    800 A
    Frequency Rating:
    50-400 Hz
    Short Description:
    EATON MAGNUM DS NEUTRAL CURRENT SENSOR 800:1
    TS PIK:
    119836558
    MSRP $168.80
    Surplus $65.25
    Qty in Cart: 0
    Price:
    MSRP $168.80
    Surplus $65.25
    Subtotal:
  • Eaton 99-4176 Circuit Breaker Accessories

    Eaton 99-4176 Circuit Breaker Accessories

    MSRP $69.00
    Surplus $16.39
    Eaton 99-4176 Circuit Breaker Accessories​ ARCA SKU:  C15-11309 Brand:  Eaton MPN:  99-4176 UPC:   Shipping Weight:  0.05 lbs. Shipping Height:  1.00 In. Shipping Length:  8.00...
    SKU:
    C15-11309
    TS PIK:
    116176233
    Country of Origin:
    United States
    MSRP $69.00
    Surplus $16.39
    Qty in Cart: 0
    Price:
    MSRP $69.00
    Surplus $16.39
    Subtotal:
  • Eaton 99-4176-2 Circuit Breaker Accessories EA

    Eaton 99-4176-2 Circuit Breaker Accessories EA

    MSRP $80.00
    Surplus $17.85
    Eaton 99-4176-2 Circuit Breaker Accessories EA​ ARCA SKU:  C15-4851 Brand:  Eaton MPN:  99-4176-2 UPC:   Shipping Weight:  0.05 lbs. Shipping Height:  1.00 In. Shipping Length:  9.00...
    SKU:
    C15-4851
    Short Description:
    GROUP METERING ACCESSORIES AND RENEWAL PARTS
    Country of Origin:
    United States
    MSRP $80.00
    Surplus $17.85
    Qty in Cart: 0
    Price:
    MSRP $80.00
    Surplus $17.85
    Subtotal:
  • Eaton A1L1RPK Circuit Breaker Accessories Eaton A1L1RPK Circuit Breaker Accessories

    Eaton A1L1RPK Circuit Breaker Accessories

    MSRP $700.00
    Surplus $120.63
    Eaton A1L1RPK Circuit Breaker Accessories​ ARCA SKU:  C15-2549 Brand:  Eaton MPN:  A1L1RPK UPC:  786679149553 Shipping Weight:  0.30 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-2549
    Volts:
    600 V
    Frequency Rating:
    50/60 Hz
    Frame:
    F
    Short Description:
    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY ALARM SWITCH, ALARM SWITCH FACTORY I
    TS PIK:
    106998398
    Country of Origin:
    Dominican Republic
    MSRP $700.00
    Surplus $120.63
    Qty in Cart: 0
    Price:
    MSRP $700.00
    Surplus $120.63
    Subtotal:
  • Eaton A1L3RTK Circuit Breaker Accessories Al/Lo Switch 600V 50/60Hz Eaton A1L3RTK Circuit Breaker Accessories Al/Lo Switch 600V 50/60Hz

    Eaton A1L3RTK Circuit Breaker Accessories Al/Lo Switch 600V 50/60Hz

    MSRP $377.00
    Surplus $131.93
    Eaton A1L3RTK Circuit Breaker Accessories Al/Lo Switch 600V 50/60Hz​ ARCA SKU:  C15-3245 Brand:  Eaton MPN:  A1L3RTK UPC:  621037165670 Shipping Weight:  0.35 Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-3245
    Type:
    Alarm Switch
    Used On:
    Molded Case Circuit Breaker
    Short Description:
    1-Set Contact, Right Pole Mount, Terminal Block, Alarm Switch for HMCP K-Frame Molded Case Circuit Breaker
    Specification/Technical:
    Eaton_05072_1_2_SPEC.pdf
    Catalog:
    Eaton_14666_V4T2_414_CAT.pdf
    Country of Origin:
    Dominican Republic
    MSRP $377.00
    Surplus $131.93
    Qty in Cart: 0
    Price:
    MSRP $377.00
    Surplus $131.93
    Subtotal:
  • Eaton A1L4LPK Circuit Breaker Accessories 250V Eaton A1L4LPK Circuit Breaker Accessories 250V

    Eaton A1L4LPK Circuit Breaker Accessories 250V

    MSRP $429.00
    Surplus $217.95
    SKU:  C15-2556 Brand:  Eaton MPN:  A1L4LPK UPC:  786679575123 Shipping Weight:  0.45 lbs. Shipping Height:  3.00 In. Shipping Length:  6.00 In. Shipping Width:  3.10 In...
    SKU:
    C15-2556
    Short Description:
    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY ALARM SWITCH, HMCP ALARM SWITCH FACT
    Volts:
    250 V
    Type:
    CIRCUIT BREAKER ALARM SWITCH
    Country of Origin:
    United States
    MSRP $429.00
    Surplus $217.95
    Qty in Cart: 0
    Price:
    MSRP $429.00
    Surplus $217.95
    Subtotal:
  • Eaton AA115RPK Circuit Breaker Accessories Auxillary and Alarm Switch Combo 250V

    Eaton AA115RPK Circuit Breaker Accessories Auxillary and Alarm Switch Combo 250V

    MSRP $820.00
    Surplus $179.57
    Eaton AA115RPK Circuit Breaker Accessories Auxillary and Alarm Switch Combo 250V​ ARCA SKU:  C15-3252 Brand:  Eaton MPN:  AA115RPK UPC:  786678262482 Shipping Weight:  0.25 Shipping Height:  2...
    SKU:
    C15-3252
    Volts:
    250 V
    Short Description:
    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY AUXILIARY BELL ALARM COMBINATION, AU
    Country of Origin:
    United States
    MSRP $820.00
    Surplus $179.57
    Qty in Cart: 0
    Price:
    MSRP $820.00
    Surplus $179.57
    Subtotal:
  • Total: items /

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