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
  • Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A

    Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A

    MSRP $139.05
    Surplus $24.41
    Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A​ ARCA SKU:  C15-6317 Brand:  Murray MPN:  MQ220 UPC:  04089252820 Shipping Weight:  3.70 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-6317
    TS PIK:
    120071665
    Short Description:
    20 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
    Type:
    Common Trip
    Current Rating:
    20 A
    Number of Poles:
    2
    Mounting:
    Plug-On
    Used On:
    Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
    Interrupting Rating:
    10 kA
    Data Sheet:
    SiemensAG_06682_1_DATA.pdf
    Voltage Rating:
    120/240 V
    Country of Origin:
    Mexico
    MSRP $139.05
    Surplus $24.41
    Qty in Cart: 0
    Price:
    MSRP $139.05
    Surplus $24.41
    Subtotal:
  • Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A

    Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A

    MSRP $139.05
    Surplus $22.31
    Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A​ ARCA SKU:  C15-6318 Brand:  Murray MPN:  MQ240 UPC:  04089252822 Shipping Weight:  4.45 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-6318
    TS PIK:
    120071673
    Used On:
    Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
    Interrupting Rating:
    10 kA
    Data Sheet:
    SiemensAG_06684_1_DATA.pdf
    Mounting:
    Plug-On
    Number of Poles:
    2
    Current Rating:
    40 A
    Short Description:
    40 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
    Type:
    Common Trip
    Voltage Rating:
    120/240 VAC
    Country of Origin:
    Mexico
    MSRP $139.05
    Surplus $22.31
    Qty in Cart: 0
    Price:
    MSRP $139.05
    Surplus $22.31
    Subtotal:
  • Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A

    Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A

    MSRP $146.25
    Surplus $24.64
    Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A​ ARCA SKU:  C15-6319 Brand:  Murray MPN:  MQ250 UPC:  04089252823 Shipping Weight:  1.30 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-6319
    TS PIK:
    120071678
    Mounting:
    Plug-On
    Type:
    Common Trip
    Used On:
    Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
    Current Rating:
    50 A
    Interrupting Rating:
    10 kA
    Data Sheet:
    SiemensAG_06685_1_DATA.pdf
    Short Description:
    50 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
    Number of Poles:
    2
    Voltage Rating:
    120/240 VAC
    Country of Origin:
    Mexico
    MSRP $146.25
    Surplus $24.64
    Qty in Cart: 0
    Price:
    MSRP $146.25
    Surplus $24.64
    Subtotal:
  • Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A

    Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A

    MSRP $146.25
    Surplus $15.48
    Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A​ ARCA SKU:  C15-6320 Brand:  Murray MPN:  MQ260 UPC:  04089252824 Shipping Weight:  2.30 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-6320
    TS PIK:
    120072355
    Voltage Rating:
    120/240 VAC
    Type:
    Common Trip
    Short Description:
    60 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
    Number of Poles:
    2
    Mounting:
    Plug-On
    Current Rating:
    60 A
    Data Sheet:
    SiemensAG_06686_1_DATA.pdf
    Used On:
    Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
    Interrupting Rating:
    10 kA
    Country of Origin:
    Mexico
    MSRP $146.25
    Surplus $15.48
    Qty in Cart: 0
    Price:
    MSRP $146.25
    Surplus $15.48
    Subtotal:
  • Murray MQJ2150 Miniature Circuit Breakers (MCBs)

    Murray MQJ2150 Miniature Circuit Breakers (MCBs)

    MSRP $1,133.00
    Surplus $145.51
    SKU:  C15-7648 Brand:  Murray MPN:  MQJ2150 UPC:  04089252490 Shipping Weight:  3.30 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7648
    TS PIK:
    123474991
    Number of Poles:
    2
    Country of Origin:
    Mexico
    MSRP $1,133.00
    Surplus $145.51
    Qty in Cart: 0
    Price:
    MSRP $1,133.00
    Surplus $145.51
    Subtotal:
  • Murray MQJ3100 Miniature Circuit Breakers (MCBs)

    Murray MQJ3100 Miniature Circuit Breakers (MCBs)

    MSRP $2,908.00
    Surplus $512.44
    SKU:  C15-7650 Brand:  Murray MPN:  MQJ3100 UPC:  04089253114 Shipping Weight:  4.40 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7650
    TS PIK:
    120152629
    Number of Poles:
    3
    Country of Origin:
    Mexico
    MSRP $2,908.00
    Surplus $512.44
    Qty in Cart: 0
    Price:
    MSRP $2,908.00
    Surplus $512.44
    Subtotal:
  • Murray MQJ3150 Molded Case Breakers (MCCBs)

    Murray MQJ3150 Molded Case Breakers (MCCBs)

    MSRP $2,996.00
    Surplus $417.70
    SKU:  C15-7652 Brand:  Murray MPN:  MQJ3150 UPC:  04089252504 Shipping Weight:  4.55 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7652
    TS PIK:
    115459330
    Country of Origin:
    Mexico
    MSRP $2,996.00
    Surplus $417.70
    Qty in Cart: 0
    Price:
    MSRP $2,996.00
    Surplus $417.70
    Subtotal:
  • Murray MQJ3200 Molded Case Breakers (MCCBs)

    Murray MQJ3200 Molded Case Breakers (MCCBs)

    MSRP $2,996.00
    Surplus $369.22
    SKU:  C15-7653 Brand:  Murray MPN:  MQJ3200 UPC:  04089252510 Shipping Weight:  4.55 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7653
    TS PIK:
    120152672
    Number of Poles:
    3
    Current Rating:
    200 A
    Voltage Rating:
    240 VAC
    Type:
    Molded Case, Common Trip
    Terminal Type:
    Load Lug
    Short Description:
    240 VAC, 200 A, 10 kA, 3-Pole, 6 AWG to 300 KCMIL Copper/4 AWG to 300 KCMIL Aluminum, Lug Terminal, MQ Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
    Series:
    MQ
    Interrupting Rating:
    10 kA
    Country of Origin:
    Mexico
    Wire Size:
    6 AWG to 300 KCMIL (Copper), 4 AWG to 300 KCMIL (Aluminum)
    MSRP $2,996.00
    Surplus $369.22
    Qty in Cart: 0
    Price:
    MSRP $2,996.00
    Surplus $369.22
    Subtotal:
  • Murray MQJ390 Miniature Circuit Breakers (MCBs)

    Murray MQJ390 Miniature Circuit Breakers (MCBs)

    MSRP $2,996.00
    Surplus $425.12
    SKU:  C15-7651 Brand:  Murray MPN:  MQJ390 UPC:  04089253113 Shipping Weight:  4.40 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-7651
    TS PIK:
    120152653
    Number of Poles:
    3
    Country of Origin:
    Mexico
    MSRP $2,996.00
    Surplus $425.12
    Qty in Cart: 0
    Price:
    MSRP $2,996.00
    Surplus $425.12
    Subtotal:
  • Murray Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V

    Murray Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V

    MSRP $197.50
    Surplus $30.96
    Murray Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V​ ARCA SKU:  C15-6219 Brand:  Murray MPN:  Q24030CT2 UPC:  78364308396 Shipping Weight:  0.80 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-6219
    TS PIK:
    115555490
    Used On:
    Loadcenter
    Series:
    QT
    Terminal Type:
    Lug
    Country of Origin:
    Mexico
    Type:
    Thermal/Fixed Magnetic, Common Trip, Quadplex
    Data Sheet:
    SiemensAG_07035_1_DATA.pdf
    Wire Size:
    14 to 6 AWG (Copper/Aluminum) Inside, 8 to 6 AWG (Copper)/8 to 4 AWG (Aluminum) Outside
    Size:
    2 Inch W x 2.06 Inch D x 3.12 Inch H
    Catalog:
    SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
    Mounting:
    Plug-On
    Current Rating:
    40/30 A
    Interrupting Rating:
    10 kA
    Short Description:
    120/240 VAC, 40/30 A, 10 kA, (2) 2-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-In Mount, QT Frame, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    2
    MSRP $197.50
    Surplus $30.96
    Qty in Cart: 0
    Price:
    MSRP $197.50
    Surplus $30.96
    Subtotal:
  • North American Breaker Company THQL32015 Miniature Circuit Breakers (MCBs) EA

    North American Breaker Company THQL32015 Miniature Circuit Breakers (MCBs) EA

    MSRP $294.93
    Surplus $49.01
    North American Breaker Company THQL32015 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU:  C15-9496 Brand:  North American Breaker Company MPN:  THQL32015 UPC:  78316401300 Shipping Weight:  0.00 lbs...
    SKU:
    C15-9496
    TS PIK:
    555088
    Type:
    Thermal Magnetic, Compact
    Short Description:
    240 VAC, 15 A, 10 kA, 3-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Non-Interchangeable/Internal Common Trip, Compact, Fixed Thermal Magnetic, Circuit Breaker
    Terminal Type:
    Plug-On
    Number of Poles:
    3
    Voltage Rating:
    120/240 VAC
    Installation/Operator:
    ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
    Interrupting Rating:
    10 kA at 120/240 VAC
    Current Rating:
    15 A
    Catalog:
    ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_31_CAT.pdf
    CAD Drawings:
    ABBElectrificationProducts-ABBGEIndustrialSolutions_00499_1_CAD.pdf
    Mounting:
    Plug-On
    MSRP $294.93
    Surplus $49.01
    Qty in Cart: 0
    Price:
    MSRP $294.93
    Surplus $49.01
    Subtotal:
  • Satco S29392 Everything Else Satco S29392 Everything Else

    Satco S29392 Everything Else

    MSRP $580.77
    Surplus $348.46
    SKU:  U00-2036 Brand:  Satco MPN:  S29392 UPC:  78590185503 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    U00-2036
    TS PIK:
    123619056
    Installation/Operator:
    Satco-NuvoLighting_00528_INST.pdf
    Short Description:
    3.66" x 9.16", 36 W, 100 to 277 VAC 50/60 Hz, 4800 Lumen, 5000 K Natural Light, 80 CRI, 50000 Hr Life, 300D Beam Spread, White, Clear, E26 Medium Base, Corncob, Non-Dimmable, Wet Location, 150 W HID Equivalent, LED LA (12 per Case)
    Type:
    Non-Dimmable, Ballast Bypass
    Country of Origin:
    United States
    MSRP $580.77
    Surplus $348.46
    Qty in Cart: 0
    Price:
    MSRP $580.77
    Surplus $348.46
    Subtotal:
  • Schneider Electric FJA140203 Molded Case Breakers (MCCBs) FJA 1P 20A 480V 50/60Hz 1Ph Schneider Electric FJA140203 Molded Case Breakers (MCCBs) FJA 1P 20A 480V 50/60Hz 1Ph

    Schneider Electric FJA140203 Molded Case Breakers (MCCBs) FJA 1P 20A 480V 50/60Hz 1Ph

    MSRP $960.00
    Surplus $78.08
    Schneider Electric FJA140203 Molded Case Breakers (MCCBs) FJA 1P 20A 480V 50/60Hz 1Ph​ ARCA SKU:  C15-3587 Brand:  Schneider Electric MPN:  FJA140203 UPC:  785901565871 Shipping Weight:  2.55 Shipping...
    SKU:
    C15-3587
    Frame Type:
    F
    Voltage Rating:
    480 V
    Current Rating:
    20 A
    Number of Poles:
    1
    Short Description:
    Square D, Powerpact, type FJA, 1P, 1PH, 20A, 277V, 65kA@480V, B phase circuit configuration, extra high interrupting capacity, 40°C, I-Line Style Plug-In, Thermal Magnetic, molded case circuit breakers
    MSRP $960.00
    Surplus $78.08
    Qty in Cart: 0
    Price:
    MSRP $960.00
    Surplus $78.08
    Subtotal:
  • Schneider Electric HOMT1520 Miniature Circuit Breakers (MCBs) HOMT 1P 15A/20A 120V 50/60Hz 1Ph Schneider Electric HOMT1520 Miniature Circuit Breakers (MCBs) HOMT 1P 15A/20A 120V 50/60Hz 1Ph

    Schneider Electric HOMT1520 Miniature Circuit Breakers (MCBs) HOMT 1P 15A/20A 120V 50/60Hz 1Ph

    MSRP $52.00
    Surplus $21.44
    Schneider Electric HOMT1520 Miniature Circuit Breakers (MCBs) HOMT 1P 15A/20A 120V 50/60Hz 1Ph​ ARCA SKU:  C15-2161 Brand:  Schneider Electric MPN:  HOMT1520 UPC:  785901065418 Shipping Weight:  0.45...
    SKU:
    C15-2161
    Type:
    Common Trip
    Approval:
    UL
    Size:
    1 Inch Width x 2.98 Inch Depth x 3.13 Inch Height
    Volts:
    120/240 VAC
    Amps:
    32 A
    Used On:
    Load Center
    Poles:
    1
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Box Lug
    Wire Size:
    12 to 8 AWG (Aluminum)
    Short Description:
    120/240 VAC, 15/20 A, 10 kA Interrupt, 1-Pole, 12 to 8 AWG Aluminum, Plug-In Mount, Box Lug Terminal, Tandem
    Catalog:
    SchneiderElectric_00257_1_20_7_23_CAT.pdf
    Installation/Operator:
    Eaton_00008_INST.pdf
    Manufacturer Warranty:
    Eaton_00009_WARR.pdf
    Current Rating:
    20 A
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    1
    Data Sheet:
    SchneiderElectric-SquareD_13509_1_2_DATA.pdf
    Country of Origin:
    Mexico
    MSRP $52.00
    Surplus $21.44
    Qty in Cart: 0
    Price:
    MSRP $52.00
    Surplus $21.44
    Subtotal:
  • Schneider Electric HOMT2020240 Miniature Circuit Breakers (MCBs) HOMT 2P 20A/40A 120V 50/60Hz 2Ph Schneider Electric HOMT2020240 Miniature Circuit Breakers (MCBs) HOMT 2P 20A/40A 120V 50/60Hz 2Ph

    Schneider Electric HOMT2020240 Miniature Circuit Breakers (MCBs) HOMT 2P 20A/40A 120V 50/60Hz 2Ph

    MSRP $120.00
    Surplus $77.14
    Schneider Electric HOMT2020240 Miniature Circuit Breakers (MCBs) HOMT 2P 20A/40A 120V 50/60Hz 2Ph​ ARCA SKU:  C15-2176 Brand:  Schneider Electric MPN:  HOMT2020240 UPC:  785901377047 Shipping Weight:  4...
    SKU:
    C15-2176
    Type:
    Thermal Magnetic
    Type:
    Common Trip
    Approval:
    UL
    Approval:
    CSA
    Size:
    2 Inch W x 2.98 Inch D x 3.13 Inch H
    Volts:
    120/240 VAC at 50/60 Hz (UL/CSA)
    Amps:
    32 A
    Used On:
    Homeline Load Center
    Poles:
    1-Pole Outside
    Poles:
    2-Pole Inside
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Screw ClA
    Wire Size:
    12 to 6 AWG (Aluminum)
    Wire Size:
    14 to 6 AWG (Copper)
    Short Description:
    120/240 VAC, 20/40 A, 10 kA Interrupt, 2-Pole, 12 to 6 AWG Aluminum, 14 to 6 AWG Copper, Plug-In Mount, Box Lug Terminal, Quad Tandem
    Catalog:
    SchneiderElectric_00257_1_20_7_23_CAT.pdf
    Manufacturer Warranty:
    Eaton_00009_WARR.pdf
    Data Sheet:
    SchneiderElectric-SquareD_13513_1_2_DATA.pdf
    Voltage Rating:
    120/240 VAC at 50/60 Hz (UL/CSA)
    Current Rating:
    20 A (Outside Pole), 40 A (Inside Pole)
    Number of Poles:
    (2) 1-Pole Outside, (1) 2-Pole Inside
    Installation/Operator:
    SchneiderElectric-SquareD_00099_INST.pdf
    Country of Origin:
    United States
    MSRP $120.00
    Surplus $77.14
    Qty in Cart: 0
    Price:
    MSRP $120.00
    Surplus $77.14
    Subtotal:
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