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 QF250A Miniature Circuit Breakers (MCBs) Siemens QF250A Miniature Circuit Breakers (MCBs)

    Siemens QF250A Miniature Circuit Breakers (MCBs)

    MSRP $404.00
    Surplus $102.91
    Siemens QF250A Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-8841 Brand:  Siemens MPN:  QF250A UPC:  88762121675 Shipping Weight:  1.02 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-8841
    TS PIK:
    116017976
    Catalog:
    SiemensAG_57237_1_35_CAT.pdf
    Number of Poles:
    2
    Interrupting Rating:
    10 kA
    Type:
    Ground Fault Circuit Interrupter
    Voltage Rating:
    120/240 VAC
    Short Description:
    120/240 VAC, 50 A, 10 kA, 5 mA, 2-Pole, QPF-Frame, Ground Fault, Circuit Breaker
    Used On:
    Load Center
    Installation/Operator:
    SiemensAG_00697_INST.pdf
    Data Sheet:
    SiemensAG_09373_1_2_DATA.pdf
    Current Rating:
    50 A
    Country of Origin:
    Philippines
    MSRP $404.00
    Surplus $102.91
    Qty in Cart: 0
    Price:
    MSRP $404.00
    Surplus $102.91
    Subtotal:
  • Siemens QF260A Miniature Circuit Breakers (MCBs) 2P 60A

    Siemens QF260A Miniature Circuit Breakers (MCBs) 2P 60A

    MSRP $396.00
    Surplus $169.48
    Siemens QF260A Miniature Circuit Breakers (MCBs) 2P 60A​ ARCA SKU:  C15-6281 Brand:  Siemens MPN:  QF260A UPC:  88762121678 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-6281
    TS PIK:
    126513863
    Data Sheet:
    SiemensAG_07109_1_DATA.pdf
    Used On:
    Load Center
    Catalog:
    SiemensAG_00562_1_40_CAT.pdf
    Type:
    Circuit Interrupter
    Interrupting Rating:
    10 kA
    Number of Poles:
    2
    Short Description:
    120/240 VAC, 60 A, 10 kA, 5 mA, 2-Pole, Plug-On Mount, QPF Frame, GFCI, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
    Current Rating:
    60 A
    Voltage Rating:
    120/240 V
    Country of Origin:
    Philippines
    MSRP $396.00
    Surplus $169.48
    Qty in Cart: 0
    Price:
    MSRP $396.00
    Surplus $169.48
    Subtotal:
  • Siemens QJ22B225 Molded Case Breakers (MCCBs)

    Siemens QJ22B225 Molded Case Breakers (MCCBs)

    MSRP $801.00
    Surplus $394.69
    SKU:  C15-6200 Brand:  Siemens MPN:  QJ22B225 UPC:  78364319375 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-6200
    TS PIK:
    21367155
    MSRP $801.00
    Surplus $394.69
    Qty in Cart: 0
    Price:
    MSRP $801.00
    Surplus $394.69
    Subtotal:
  • Siemens QJ23B06000S01 Molded Case Breakers (MCCBs)

    Siemens QJ23B06000S01 Molded Case Breakers (MCCBs)

    MSRP $2,705.00
    Surplus $444.41
    SKU:  C15-7496 Brand:  Siemens MPN:  QJ23B06000S01 UPC:  78364320410 Shipping Weight:  4.60 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00...
    SKU:
    C15-7496
    TS PIK:
    115459276
    Interrupting Rating:
    10 kA
    Type:
    Low Vage, Trip Free Mechanism, Shunt Trip
    Current Rating:
    60 A
    Number of Poles:
    3
    Terminal Type:
    Not Included
    Voltage Rating:
    120 VAC
    Country of Origin:
    Mexico
    MSRP $2,705.00
    Surplus $444.41
    Qty in Cart: 0
    Price:
    MSRP $2,705.00
    Surplus $444.41
    Subtotal:
  • Siemens QJ23B10000S07 Molded Case Breakers (MCCBs)

    Siemens QJ23B10000S07 Molded Case Breakers (MCCBs)

    MSRP $2,705.00
    Surplus $499.49
    SKU:  C15-7692 Brand:  Siemens MPN:  QJ23B10000S07 UPC:  78364320815 Shipping Weight:  4.75 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  6.00...
    SKU:
    C15-7692
    TS PIK:
    21333945
    Country of Origin:
    Mexico
    MSRP $2,705.00
    Surplus $499.49
    Qty in Cart: 0
    Price:
    MSRP $2,705.00
    Surplus $499.49
    Subtotal:
  • Siemens QJ23B125H Molded Case Breakers (MCCBs)

    Siemens QJ23B125H Molded Case Breakers (MCCBs)

    MSRP $4,114.00
    Surplus $558.40
    SKU:  C15-7498 Brand:  Siemens MPN:  QJ23B125H UPC:  78364319397 Shipping Weight:  4.55 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7498
    TS PIK:
    115459280
    Terminal Type:
    Load Lug
    Catalog:
    SiemensAG_01842_7_CAT.pdf
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Short Description:
    240 VAC, 125 A, 42 kA, 3-Pole, Load Lug Terminal, QJ Frame, Molded Case Circuit Breaker
    Current Rating:
    125 A
    Interrupting Rating:
    42 kA at 240 VAC (UL)
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Number of Poles:
    3
    Series:
    QJ2H
    Size:
    4.5 Inch W x 2.53 Inch D x 7 Inch H
    Country of Origin:
    Mexico
    MSRP $4,114.00
    Surplus $558.40
    Qty in Cart: 0
    Price:
    MSRP $4,114.00
    Surplus $558.40
    Subtotal:
  • Siemens QJ23B150H Molded Case Breakers (MCCBs)

    Siemens QJ23B150H Molded Case Breakers (MCCBs)

    MSRP $3,604.00
    Surplus $532.74
    SKU:  C15-7380 Brand:  Siemens MPN:  QJ23B150H UPC:  78364319398 Shipping Weight:  4.50 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7380
    TS PIK:
    106247396
    Terminal Type:
    P1/P2/P3/P4/P5 Panelboard
    Size:
    4.5 Inch W x 2.53 Inch D x 7 Inch H
    Frame Type:
    QJ
    Series:
    QJ2
    Current Rating:
    150 A
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Catalog:
    SiemensAG_01842_7_CAT.pdf
    Maximum AC Voltage Rating:
    150 A
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Interrupting Rating:
    42 kA at 240 VAC (UL)
    Number of Poles:
    3
    Short Description:
    240 VAC, 150 A, 42 kA, 3-Pole, Load Lug Terminal, QJ Frame, Molded Case Circuit Breaker
    Country of Origin:
    Mexico
    MSRP $3,604.00
    Surplus $532.74
    Qty in Cart: 0
    Price:
    MSRP $3,604.00
    Surplus $532.74
    Subtotal:
  • Siemens QJ23B175 Molded Case Breakers (MCCBs)

    Siemens QJ23B175 Molded Case Breakers (MCCBs)

    MSRP $2,316.00
    Surplus $306.83
    SKU:  C15-7499 Brand:  Siemens MPN:  QJ23B175 UPC:  78364319379 Shipping Weight:  4.40 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7499
    TS PIK:
    115459283
    Type:
    Thermal Magnetic
    Number of Poles:
    3
    Current Rating:
    175 A
    Terminal Type:
    P1/P2/P3/P4/P5 Panelboard
    Catalog:
    SiemensAG_01842_7_CAT.pdf
    Size:
    4.5 Inch W x 2.53 Inch D x 7 Inch H
    Short Description:
    240 VAC, 175 A, 10 kA, 3-Pole, Load Lug Terminal, QJ Frame, Molded Case Circuit Breaker
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Frame Type:
    QJ
    Interrupting Rating:
    10 kA at 240 VAC (UL 489)
    Series:
    QJ2
    Country of Origin:
    Mexico
    MSRP $2,316.00
    Surplus $306.83
    Qty in Cart: 0
    Price:
    MSRP $2,316.00
    Surplus $306.83
    Subtotal:
  • Siemens QJ23B17501S01 Molded Case Breakers (MCCBs) QJ2 3P 175A 240V 50/60Hz 3Ph QJ Frame Siemens QJ23B17501S01 Molded Case Breakers (MCCBs) QJ2 3P 175A 240V 50/60Hz 3Ph QJ Frame

    Siemens QJ23B17501S01 Molded Case Breakers (MCCBs) QJ2 3P 175A 240V 50/60Hz 3Ph QJ Frame

    MSRP $3,210.00
    Surplus $261.90
    SKU:  C15-3327 Brand:  Siemens MPN:  QJ23B17501S01 UPC:  783643206533 Shipping Weight:  4.00 lbs. Shipping Height:  5.00 In. Shipping Length:  7.00 In. Shipping Width:  5.00...
    SKU:
    C15-3327
    Volts:
    240 V
    Amps:
    175 A
    Poles:
    3
    Frequency Rating:
    50/60 Hz
    Frame:
    QJ
    Short Description:
    BRKR QJ2 3P 240V 175A 10KA 48V ST/AUX
    Country of Origin:
    Mexico
    MSRP $3,210.00
    Surplus $261.90
    Qty in Cart: 0
    Price:
    MSRP $3,210.00
    Surplus $261.90
    Subtotal:
  • Siemens QJ23S225A Molded Case Breakers (MCCBs)

    Siemens QJ23S225A Molded Case Breakers (MCCBs)

    MSRP $2,078.00
    Surplus $259.69
    SKU:  C15-7501 Brand:  Siemens MPN:  QJ23S225A UPC:  78364319850 Shipping Weight:  4.40 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7501
    TS PIK:
    115459292
    Size:
    4.5 Inch W x 2.53 Inch D x 7 Inch H
    Short Description:
    240 VAC, 225 A, 10 kA, 3-Pole, Load Lug Terminal, QJ Frame, Molded Case Circuit Breaker
    Current Rating:
    225 A
    Maximum AC Voltage Rating:
    240 V
    Type:
    Molded Case Switch
    Number of Poles:
    3
    Interrupting Rating:
    10 kA at 240 VAC (UL)
    Terminal Type:
    Load Lug
    Frame Type:
    QJ2
    Voltage Rating:
    240 VAC at 50/60 Hz
    Country of Origin:
    Mexico
    MSRP $2,078.00
    Surplus $259.69
    Qty in Cart: 0
    Price:
    MSRP $2,078.00
    Surplus $259.69
    Subtotal:
  • Siemens QJ3B125 Molded Case Breakers (MCCBs)

    Siemens QJ3B125 Molded Case Breakers (MCCBs)

    MSRP $1,443.42
    Surplus $653.12
    SKU:  E30-11692 Brand:  Siemens MPN:  QJ3B125 UPC:   Shipping Weight:  4.20 lbs. Shipping Height:  3.00 In. Shipping Length:  7.00 In. Shipping Width:  5.00 In. Product...
    SKU:
    E30-11692
    MSRP $1,443.42
    Surplus $653.12
    Qty in Cart: 0
    Price:
    MSRP $1,443.42
    Surplus $653.12
    Subtotal:
  • Siemens QJH22B225 Molded Case Breakers (MCCBs)

    Siemens QJH22B225 Molded Case Breakers (MCCBs)

    MSRP $1,914.00
    Surplus $448.34
    SKU:  E30-11709 Brand:  Siemens MPN:  QJH22B225 UPC:  78364319386 Shipping Weight:  3.25 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    E30-11709
    TS PIK:
    21367166
    Series:
    QJH2
    Short Description:
    240 VAC, 225 A, 22 kA, 2-Pole, Load Lug Terminal, QJ Frame, Molded Case Circuit Breaker
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Number of Poles:
    2
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Current Rating:
    225 A
    Terminal Type:
    Load Lug
    Interrupting Rating:
    22 kA at 240 VAC (UL)
    Catalog:
    SiemensAG_01842_7_CAT.pdf
    Size:
    3 Inch W x 2.53 Inch D x 7 Inch H
    Country of Origin:
    Mexico
    MSRP $1,914.00
    Surplus $448.34
    Qty in Cart: 0
    Price:
    MSRP $1,914.00
    Surplus $448.34
    Subtotal:
  • Siemens QJH23B070 Molded Case Breakers (MCCBs) EA

    MSRP $2,000.00
    Surplus $821.58
    SKU:  C15-10586 Brand:  Siemens MPN:  QJH23B070 UPC:  78364320116 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10586
    TS PIK:
    115559372
    Country of Origin:
    Mexico
    MSRP $2,000.00
    Surplus $821.58
    Qty in Cart: 0
    Price:
    MSRP $2,000.00
    Surplus $821.58
    Subtotal:
  • Siemens QJH23B175 Molded Case Breakers (MCCBs)

    Siemens QJH23B175 Molded Case Breakers (MCCBs)

    MSRP $3,242.00
    Surplus $375.43
    SKU:  E30-11710 Brand:  Siemens MPN:  QJH23B175 UPC:  78364319389 Shipping Weight:  4.50 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    E30-11710
    TS PIK:
    120632284
    Number of Poles:
    3
    Terminal Type:
    Load Lug
    Catalog:
    SiemensAG_01842_7_CAT.pdf
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Series:
    QJH2
    Current Rating:
    175 A
    Size:
    4.5 Inch W x 2.53 Inch D x 7 Inch H
    Short Description:
    240 VAC, 175 A, 22 kA, 3-Pole, Load Lug Terminal, QJ Frame, Molded Case Circuit Breaker
    Interrupting Rating:
    22 kA at 240 VAC (UL)
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    Wire Size:
    6 AWG to 300 KCMIL (Copper), 4 AWG to 300 KCMIL (Aluminum)
    MSRP $3,242.00
    Surplus $375.43
    Qty in Cart: 0
    Price:
    MSRP $3,242.00
    Surplus $375.43
    Subtotal:
  • Siemens QJH23B20000S01 Molded Case Breakers (MCCBs)

    Siemens QJH23B20000S01 Molded Case Breakers (MCCBs)

    MSRP $3,538.00
    Surplus $806.61
    SKU:  C15-7504 Brand:  Siemens MPN:  QJH23B20000S01 UPC:  78364331999 Shipping Weight:  4.75 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00...
    SKU:
    C15-7504
    TS PIK:
    115459298
    Short Description:
    240 VAC, 200 A, 22 kA, 3-Pole, Load Lug Terminal, QJ Frame, 120/240 VAC Shunt Trip, Molded Case Circuit Breaker
    Number of Poles:
    3
    Size:
    4.5 Inch W x 2.53 Inch D x 7 Inch H
    Series:
    QJH2
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Current Rating:
    200 A
    Interrupting Rating:
    22 kA at 240 VAC (UL)
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Terminal Type:
    Load Lug
    Country of Origin:
    Mexico
    MSRP $3,538.00
    Surplus $806.61
    Qty in Cart: 0
    Price:
    MSRP $3,538.00
    Surplus $806.61
    Subtotal:
  • Siemens QN2150 Miniature Circuit Breakers (MCBs) QN 2P 150A 120/240VAC Siemens QN2150 Miniature Circuit Breakers (MCBs) QN 2P 150A 120/240VAC

    Siemens QN2150 Miniature Circuit Breakers (MCBs) QN 2P 150A 120/240VAC

    MSRP $817.00
    Surplus $195.51
    SKU:  C15-1495 Brand:  Siemens MPN:  QN2150 UPC:  783643204270 Shipping Weight:  1.60 lbs. Shipping Height:  2.50 In. Shipping Length:  7.70 In. Shipping Width:  4.10 In...
    SKU:
    C15-1495
    Series:
    QN
    Type:
    Thermal Magnetic
    Type:
    Common Trip
    Approval:
    UL 489
    Size:
    1.9 Inch W x 3.5 Inch D x 6.65 Inch H
    Volts:
    120/240 VAC (UL)
    Amps:
    32 A
    Used On:
    Loadcenter
    Poles:
    2
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA (UL)
    Terminal Type:
    Load Lug
    Wire Size:
    1 AWG to 300 KCMIL (Copper/Aluminum)
    Short Description:
    120/240 VAC, 150 A, 10 kA, 2-Pole, Plug-In Mount, QN Frame, Thermal Magnetic Trip Unit, Non-Reversible
    Catalog:
    SiemensAG_00564_7_24_CAT.pdf
    Data Sheet:
    SiemensAG_07116_1_DATA.pdf
    Number of Poles:
    2
    Current Rating:
    150 A
    Voltage Rating:
    120/240 VAC (UL)
    Country of Origin:
    Mexico
    MSRP $817.00
    Surplus $195.51
    Qty in Cart: 0
    Price:
    MSRP $817.00
    Surplus $195.51
    Subtotal:
  • Siemens QN2175 Miniature Circuit Breakers (MCBs) EA

    Siemens QN2175 Miniature Circuit Breakers (MCBs) EA

    MSRP $700.00
    Surplus $267.29
    SKU:  C15-10588 Brand:  Siemens MPN:  QN2175 UPC:  78364320428 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10588
    TS PIK:
    117091800
    Short Description:
    120/240 VAC, 175 A, 10 kA, 2-Pole, Plug-On Mount, QN Frame, Thermal Magnetic Trip Unit, Non-Reversible, Main Circuit Breaker for Load Center
    Series:
    QN
    Type:
    Main/Branch, Common Trip
    Terminal Type:
    Load Lug
    Number of Poles:
    2
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA (UL)
    Voltage Rating:
    120/240 VAC (UL)
    Size:
    1.9 Inch W x 3.5 Inch D x 6.65 Inch H
    Current Rating:
    175 A
    Data Sheet:
    SiemensAG_07119_1_DATA.pdf
    Catalog:
    SiemensAG_00564_7_24_CAT.pdf
    Used On:
    Loadcenter
    Wire Size:
    1 AWG to 300 KCMIL (Copper/Aluminum)
    Country of Origin:
    Mexico
    MSRP $700.00
    Surplus $267.29
    Qty in Cart: 0
    Price:
    MSRP $700.00
    Surplus $267.29
    Subtotal:
  • Siemens QN2175H Miniature Circuit Breakers (MCBs) EA

    MSRP $822.00
    Surplus $314.75
    SKU:  C15-10589 Brand:  Siemens MPN:  QN2175H UPC:  78364320431 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10589
    TS PIK:
    117091803
    Country of Origin:
    Mexico
    MSRP $822.00
    Surplus $314.75
    Qty in Cart: 0
    Price:
    MSRP $822.00
    Surplus $314.75
    Subtotal:
  • Siemens QN2175R Miniature Circuit Breakers (MCBs) EA

    MSRP $667.00
    Surplus $266.28
    SKU:  C15-10590 Brand:  Siemens MPN:  QN2175R UPC:  78364320424 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10590
    TS PIK:
    117091798
    Country of Origin:
    Mexico
    MSRP $667.00
    Surplus $266.28
    Qty in Cart: 0
    Price:
    MSRP $667.00
    Surplus $266.28
    Subtotal:
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