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
  • Siemens N125X Circuit Breaker Accessories EA

    Siemens N125X Circuit Breaker Accessories EA

    MSRP $188.50
    Surplus $46.28
    Siemens N125X Circuit Breaker Accessories EA​ ARCA SKU:  C15-9508 Brand:  Siemens MPN:  N125X UPC:  19512521049 Shipping Weight:  0.25 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-9508
    TS PIK:
    129211476
    Short Description:
    NEUTRAL KIT 3VA 125A 100PERCENT CB ENCL
    Country of Origin:
    Mexico
    MSRP $188.50
    Surplus $46.28
    Qty in Cart: 0
    Price:
    MSRP $188.50
    Surplus $46.28
    Subtotal:
  • Siemens NEB1B020B Molded Case Breakers (MCCBs)

    Siemens NEB1B020B Molded Case Breakers (MCCBs)

    MSRP $3,153.00
    Surplus $128.61
    SKU:  E30-11706 Brand:  Siemens MPN:  NEB1B020B UPC:  78364355815 Shipping Weight:  1.05 lbs. Shipping Height:  5.00 In. Shipping Length:  7.00 In. Shipping Width:  5.00 In...
    SKU:
    E30-11706
    TS PIK:
    115459763
    Current Rating:
    20 A
    Interrupting Rating:
    100 kA at 120 VAC (UL 489), 85 kA at 240 VAC (UL 489), 35 kA at 277 VAC/125/250 VDC (UL 489), 22 kA at 347 VAC (UL 489), 85 kA at 240 VAC (IEC), 35 kA at 250 VDC (IEC)
    Number of Poles:
    1
    Voltage Rating:
    277 V
    Series:
    NEB
    Short Description:
    240/277/347 VAC 50/60 Hz, 125/250 VDC, 20 A, 85 kA, 1-Pole, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
    Type:
    Thermal Magnetic, Molded Case
    Country of Origin:
    Dominican Republic
    MSRP $3,153.00
    Surplus $128.61
    Qty in Cart: 0
    Price:
    MSRP $3,153.00
    Surplus $128.61
    Subtotal:
  • Siemens NEG3B015L Molded Case Breakers (MCCBs) EA

    MSRP $7,500.00
    Surplus $1,965.88
    SKU:  C15-10503 Brand:  Siemens MPN:  NEG3B015L UPC:  78364351980 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10503
    TS PIK:
    120973117
    Country of Origin:
    Dominican Republic
    MSRP $7,500.00
    Surplus $1,965.88
    Qty in Cart: 0
    Price:
    MSRP $7,500.00
    Surplus $1,965.88
    Subtotal:
  • Siemens NGB1B020 Miniature Circuit Breakers (MCBs) 1P 20A 347V

    Siemens NGB1B020 Miniature Circuit Breakers (MCBs) 1P 20A 347V

    MSRP $443.00
    Surplus $70.68
    Siemens NGB1B020 Miniature Circuit Breakers (MCBs) 1P 20A 347V​ ARCA SKU:  C15-6216 Brand:  Siemens MPN:  NGB1B020 UPC:  78364355310 Shipping Weight:  0.75 lbs. Shipping Height:  1.00 In...
    SKU:
    C15-6216
    TS PIK:
    21367310
    Number of Poles:
    1
    MSRP $443.00
    Surplus $70.68
    Qty in Cart: 0
    Price:
    MSRP $443.00
    Surplus $70.68
    Subtotal:
  • Siemens NGB1B020B Miniature Circuit Breakers (MCBs) 1P 20A 347V

    Siemens NGB1B020B Miniature Circuit Breakers (MCBs) 1P 20A 347V

    MSRP $443.00
    Surplus $83.90
    Siemens NGB1B020B Miniature Circuit Breakers (MCBs) 1P 20A 347V​ ARCA SKU:  C15-6217 Brand:  Siemens MPN:  NGB1B020B UPC:  78364341396 Shipping Weight:  0.85 lbs. Shipping Height:  2.00 In...
    SKU:
    C15-6217
    TS PIK:
    21367322
    Short Description:
    BREAKER NGB 1P 20A 347V 14KA LD LUG
    Number of Poles:
    1
    Country of Origin:
    Mexico
    MSRP $443.00
    Surplus $83.90
    Qty in Cart: 0
    Price:
    MSRP $443.00
    Surplus $83.90
    Subtotal:
  • Siemens NGB2B020B Miniature Circuit Breakers (MCBs)

    Siemens NGB2B020B Miniature Circuit Breakers (MCBs)

    MSRP $1,353.00
    Surplus $179.41
    SKU:  E30-11707 Brand:  Siemens MPN:  NGB2B020B UPC:  78364341411 Shipping Weight:  1.75 lbs. Shipping Height:  5.00 In. Shipping Length:  8.00 In. Shipping Width:  4.00 In...
    SKU:
    E30-11707
    TS PIK:
    115459764
    Number of Poles:
    2
    Country of Origin:
    Mexico
    MSRP $1,353.00
    Surplus $179.41
    Qty in Cart: 0
    Price:
    MSRP $1,353.00
    Surplus $179.41
    Subtotal:
  • Siemens NGB2B050B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB2B050B Miniature Circuit Breakers (MCBs) EA

    MSRP $1,600.00
    Surplus $504.67
    SKU:  C15-10505 Brand:  Siemens MPN:  NGB2B050B UPC:  78364341417 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10505
    TS PIK:
    121460468
    Country of Origin:
    Mexico
    MSRP $1,600.00
    Surplus $504.67
    Qty in Cart: 0
    Price:
    MSRP $1,600.00
    Surplus $504.67
    Subtotal:
  • Siemens NGB2B060B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB2B060B Miniature Circuit Breakers (MCBs) EA

    MSRP $1,600.00
    Surplus $502.42
    SKU:  C15-10506 Brand:  Siemens MPN:  NGB2B060B UPC:  78364341418 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10506
    TS PIK:
    121460469
    Country of Origin:
    Mexico
    MSRP $1,600.00
    Surplus $502.42
    Qty in Cart: 0
    Price:
    MSRP $1,600.00
    Surplus $502.42
    Subtotal:
  • Siemens NGB2B070B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB2B070B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,000.00
    Surplus $601.70
    SKU:  C15-10507 Brand:  Siemens MPN:  NGB2B070B UPC:  78364341419 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10507
    TS PIK:
    121460470
    Country of Origin:
    Mexico
    MSRP $2,000.00
    Surplus $601.70
    Qty in Cart: 0
    Price:
    MSRP $2,000.00
    Surplus $601.70
    Subtotal:
  • Siemens NGB2B080B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB2B080B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,148.00
    Surplus $634.85
    SKU:  C15-10508 Brand:  Siemens MPN:  NGB2B080B UPC:  78364341420 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10508
    TS PIK:
    121460471
    Country of Origin:
    Mexico
    MSRP $2,148.00
    Surplus $634.85
    Qty in Cart: 0
    Price:
    MSRP $2,148.00
    Surplus $634.85
    Subtotal:
  • Siemens NGB2B100B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB2B100B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,000.00
    Surplus $590.42
    SKU:  C15-10510 Brand:  Siemens MPN:  NGB2B100B UPC:  78364341422 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10510
    TS PIK:
    121460473
    Country of Origin:
    Mexico
    MSRP $2,000.00
    Surplus $590.42
    Qty in Cart: 0
    Price:
    MSRP $2,000.00
    Surplus $590.42
    Subtotal:
  • Siemens NGB2B125B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB2B125B Miniature Circuit Breakers (MCBs) EA

    MSRP $4,100.00
    Surplus $1,242.42
    SKU:  C15-10511 Brand:  Siemens MPN:  NGB2B125B UPC:  78364341424 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10511
    TS PIK:
    121460475
    Country of Origin:
    Mexico
    MSRP $4,100.00
    Surplus $1,242.42
    Qty in Cart: 0
    Price:
    MSRP $4,100.00
    Surplus $1,242.42
    Subtotal:
  • Siemens NGB3B015B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB3B015B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,000.00
    Surplus $763.67
    SKU:  C15-10512 Brand:  Siemens MPN:  NGB3B015B UPC:  78364341425 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10512
    TS PIK:
    121449814
    Country of Origin:
    Mexico
    MSRP $2,000.00
    Surplus $763.67
    Qty in Cart: 0
    Price:
    MSRP $2,000.00
    Surplus $763.67
    Subtotal:
  • Siemens NGB3B020B Molded Case Breakers (MCCBs) 3P 20A EA

    Siemens NGB3B020B Molded Case Breakers (MCCBs) 3P 20A EA

    MSRP $1,771.00
    Surplus $248.28
    Siemens NGB3B020B Molded Case Breakers (MCCBs) 3P 20A EA​ ARCA SKU:  C15-8483 Brand:  Siemens MPN:  NGB3B020B UPC:  78364341426 Shipping Weight:  2.10 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-8483
    TS PIK:
    21260641
    Country of Origin:
    Mexico
    MSRP $1,771.00
    Surplus $248.28
    Qty in Cart: 0
    Price:
    MSRP $1,771.00
    Surplus $248.28
    Subtotal:
  • Siemens NGB3B025B Miniature Circuit Breakers (MCBs) 3P 25A

    Siemens NGB3B025B Miniature Circuit Breakers (MCBs) 3P 25A

    MSRP $1,624.00
    Surplus $681.18
    Siemens NGB3B025B Miniature Circuit Breakers (MCBs) 3P 25A​ ARCA SKU:  C15-7627 Brand:  Siemens MPN:  NGB3B025B UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-7627
    Country of Origin:
    Mexico
    MSRP $1,624.00
    Surplus $681.18
    Qty in Cart: 0
    Price:
    MSRP $1,624.00
    Surplus $681.18
    Subtotal:
  • Siemens NGB3B040B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB3B040B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,000.00
    Surplus $664.12
    SKU:  C15-10513 Brand:  Siemens MPN:  NGB3B040B UPC:  78364341430 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10513
    TS PIK:
    121460478
    Country of Origin:
    Mexico
    MSRP $2,000.00
    Surplus $664.12
    Qty in Cart: 0
    Price:
    MSRP $2,000.00
    Surplus $664.12
    Subtotal:
  • Siemens NGB3B050B Miniature Circuit Breakers (MCBs)

    Siemens NGB3B050B Miniature Circuit Breakers (MCBs)

    MSRP $2,125.00
    Surplus $465.13
    SKU:  C15-8484 Brand:  Siemens MPN:  NGB3B050B UPC:  78312609982 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-8484
    TS PIK:
    21331993
    Series:
    NGB
    Type:
    Branch, Molded Case, Thermal and Fixed Magnetic
    Number of Poles:
    3
    Short Description:
    600 VAC Star/347 VAC, 50 A, 14 kA, 3-Pole, Molded Case, Branch, Thermal Magnetic, Panelboard Circuit Breaker
    Current Rating:
    50 A
    Interrupting Rating:
    100 kA at 240 VAC, 25 kA at 480 Star/347 VAC, 14 kA at 600 Star/347 VAC (UL)
    Voltage Rating:
    240 VAC, 480 Star/347 VAC, 600 Star/347 VAC at 50/60 Hz (UL)
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Country of Origin:
    Mexico
    MSRP $2,125.00
    Surplus $465.13
    Qty in Cart: 0
    Price:
    MSRP $2,125.00
    Surplus $465.13
    Subtotal:
  • Siemens NGB3B070B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB3B070B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,400.00
    Surplus $882.27
    SKU:  C15-10514 Brand:  Siemens MPN:  NGB3B070B UPC:  78364341434 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10514
    TS PIK:
    121460481
    Country of Origin:
    Mexico
    MSRP $2,400.00
    Surplus $882.27
    Qty in Cart: 0
    Price:
    MSRP $2,400.00
    Surplus $882.27
    Subtotal:
  • Siemens NGB3B080B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB3B080B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,400.00
    Surplus $781.45
    SKU:  C15-10515 Brand:  Siemens MPN:  NGB3B080B UPC:  78364341435 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10515
    TS PIK:
    121449818
    Country of Origin:
    Mexico
    MSRP $2,400.00
    Surplus $781.45
    Qty in Cart: 0
    Price:
    MSRP $2,400.00
    Surplus $781.45
    Subtotal:
  • Siemens NGB3B100B Miniature Circuit Breakers (MCBs) EA

    Siemens NGB3B100B Miniature Circuit Breakers (MCBs) EA

    MSRP $2,400.00
    Surplus $761.54
    SKU:  C15-10516 Brand:  Siemens MPN:  NGB3B100B UPC:  78364341437 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10516
    TS PIK:
    121460483
    Country of Origin:
    Mexico
    MSRP $2,400.00
    Surplus $761.54
    Qty in Cart: 0
    Price:
    MSRP $2,400.00
    Surplus $761.54
    Subtotal:
  • Total: items /

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