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
  • Square D KA36250 Molded Case Breakers (MCCBs) EA Square D KA36250 Molded Case Breakers (MCCBs) EA

    Square D KA36250 Molded Case Breakers (MCCBs) EA

    MSRP $5,500.00
    Surplus $1,136.87
    SKU:  C15-7082 Brand:  Square D MPN:  KA36250 UPC:   Shipping Weight:  8.60 lbs. Shipping Height:  6.00 In. Shipping Length:  15.00 In. Shipping Width:  9.00 In. Product...
    SKU:
    C15-7082
    Size:
    4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
    Type:
    Molded Case, Thermal Magnetic, Adjustable
    Number of Poles:
    3
    Interrupting Rating:
    42 kA at 240 VAC, 25 kA at 480 VAC, 22 kA at 600 VAC
    Current Rating:
    250 A
    Data Sheet:
    SchneiderElectric-SquareD_04818_1_DATA.pdf
    Short Description:
    600 VAC, 250 VDC, 250 A, 22 kA, 3-Pole, K-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
    Voltage Rating:
    600 VAC, 250 VDC
    Catalog:
    SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
    Series:
    kA
    Frame Type:
    K
    Approval:
    UL
    MSRP $5,500.00
    Surplus $1,136.87
    Qty in Cart: 0
    Price:
    MSRP $5,500.00
    Surplus $1,136.87
    Subtotal:
  • Square D KAL26125 Other Circuit Breakers Square D KAL26125 Other Circuit Breakers

    Square D KAL26125 Other Circuit Breakers

    MSRP $2,000.00
    Surplus $738.28
    SKU:  C15-7083 Brand:  Square D MPN:  KAL26125 UPC:   Shipping Weight:  5.45 lbs. Shipping Height:  5.00 In. Shipping Length:  9.00 In. Shipping Width:  7.00 In. Product...
    SKU:
    C15-7083
    Frame Type:
    K
    Current Rating:
    125 A
    Voltage Rating:
    600 VAC, 250 VDC
    Interrupting Rating:
    42 kA at 240 VAC, 25 kA at 480 VAC, 22 kA at 600 VAC, 10 kA at 125/250 VDC
    Terminal Type:
    Lug
    Number of Poles:
    2
    Type:
    Thermal Magnetic
    Short Description:
    600 VAC, 250 VDC, 125 A, 22 kA, 2-Pole, K-Frame, Individually Mount, Thermal Magnetic, Molded Case Circuit Breaker
    Series:
    655/825/660, kAL
    Size:
    4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
    Catalog:
    SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
    MSRP $2,000.00
    Surplus $738.28
    Qty in Cart: 0
    Price:
    MSRP $2,000.00
    Surplus $738.28
    Subtotal:
  • Square D KAP36225 Molded Case Breakers (MCCBs) EA Square D KAP36225 Molded Case Breakers (MCCBs) EA

    Square D KAP36225 Molded Case Breakers (MCCBs) EA

    MSRP $2,000.00
    Surplus $780.28
    SKU:  C15-10960 Brand:  Square D MPN:  KAP36225 UPC:  785901425540 Shipping Weight:  7.10 lbs. Shipping Height:  9.00 In. Shipping Length:  13.00 In. Shipping Width:  6.00 In...
    SKU:
    C15-10960
    Current Rating:
    225 A
    Voltage Rating:
    600 VAC, 250 VDC
    Frame Type:
    K
    Terminal Type:
    OFF End Lug
    Short Description:
    225 A, 3-Pole, K-Frame, Thermal Magnetic, Molded Case Circuit Breaker
    Interrupting Rating:
    42 kA at 240 VAC, 25 kA at 480 VAC, 22 kA at 600 VAC, 10 kA at 125/250 VDC
    Catalog:
    SchneiderElectric-SquareD_03394_91_92_CAT.pdf
    Series:
    601, kAP
    Number of Poles:
    3
    Type:
    Thermal Magnetic
    MSRP $2,000.00
    Surplus $780.28
    Qty in Cart: 0
    Price:
    MSRP $2,000.00
    Surplus $780.28
    Subtotal:
  • Square D KC34250 Molded Case Breakers (MCCBs)

    Square D KC34250 Molded Case Breakers (MCCBs)

    MSRP $20,000.00
    Surplus $2,048.32
    SKU:  C15-7094 Brand:  Square D MPN:  KC34250 UPC:   Shipping Weight:  9.05 lbs. Shipping Height:  6.00 In. Shipping Length:  11.00 In. Shipping Width:  5.00 In. Product...
    SKU:
    C15-7094
    Series:
    655/825/660, KC
    Voltage Rating:
    600 VAC, 250 VDC
    Current Rating:
    250 A
    Short Description:
    600 VAC, 250 VDC, 250 A, 3-Pole, K-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
    Interrupting Rating:
    100 kA at 240 VAC, 65 kA at 480 VAC
    Catalog:
    SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
    Type:
    Molded Case, Thermal Magnetic, Main
    Number of Poles:
    3
    MSRP $20,000.00
    Surplus $2,048.32
    Qty in Cart: 0
    Price:
    MSRP $20,000.00
    Surplus $2,048.32
    Subtotal:
  • Square D KHL36125 Molded Case Breakers (MCCBs)

    Square D KHL36125 Molded Case Breakers (MCCBs)

    MSRP $6,000.00
    Surplus $1,320.68
    SKU:  C15-7085 Brand:  Square D MPN:  KHL36125 UPC:   Shipping Weight:  7.50 lbs. Shipping Height:  9.00 In. Shipping Length:  13.00 In. Shipping Width:  6.00 In. Product...
    SKU:
    C15-7085
    Size:
    4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
    Type:
    Thermal Magnetic
    Interrupting Rating:
    65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC, 50 kA at 125/250 VDC
    Number of Poles:
    3
    Current Rating:
    125 A
    Catalog:
    SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
    Terminal Type:
    Lug
    Short Description:
    600 VAC, 250 VDC, 125 A, 25 kA, 3-Pole, K-Frame, Individually Mount, Thermal Magnetic, Molded Case Circuit Breaker
    Frame Type:
    K
    Series:
    655/825/660, KHL
    Voltage Rating:
    600 VAC, 250 VDC
    MSRP $6,000.00
    Surplus $1,320.68
    Qty in Cart: 0
    Price:
    MSRP $6,000.00
    Surplus $1,320.68
    Subtotal:
  • Square D KHL36150 Molded Case Breakers (MCCBs)

    Square D KHL36150 Molded Case Breakers (MCCBs)

    MSRP $6,000.00
    Surplus $949.10
    SKU:  C15-7087 Brand:  Square D MPN:  KHL36150 UPC:   Shipping Weight:  7.45 lbs. Shipping Height:  9.00 In. Shipping Length:  13.00 In. Shipping Width:  6.00 In. Product...
    SKU:
    C15-7087
    Current Rating:
    150 A
    Series:
    655/825/660, KHL
    Number of Poles:
    3
    Voltage Rating:
    600 VAC, 250 VDC
    Type:
    Thermal Magnetic
    Size:
    4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
    Catalog:
    SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
    Terminal Type:
    Lug
    Interrupting Rating:
    65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC, 50 kA at 125/250 VDC
    Frame Type:
    K
    Short Description:
    600 VAC, 250 VDC, 150 A, 25 kA, 3-Pole, K-Frame, Individually Mount, Thermal Magnetic, Molded Case Circuit Breaker
    MSRP $6,000.00
    Surplus $949.10
    Qty in Cart: 0
    Price:
    MSRP $6,000.00
    Surplus $949.10
    Subtotal:
  • Square D KHL36225 Molded Case Breakers (MCCBs)

    Square D KHL36225 Molded Case Breakers (MCCBs)

    MSRP $7,000.00
    Surplus $862.13
    SKU:  C15-7089 Brand:  Square D MPN:  KHL36225 UPC:   Shipping Weight:  7.25 lbs. Shipping Height:  9.00 In. Shipping Length:  13.00 In. Shipping Width:  6.00 In. Product...
    SKU:
    C15-7089
    Series:
    655/825/660, KHL
    Short Description:
    600 VAC, 250 VDC, 225 A, 25 kA, 3-Pole, K-Frame, Individually Mount, Thermal Magnetic, Molded Case Circuit Breaker
    Terminal Type:
    Lug
    Frame Type:
    K
    Data Sheet:
    SchneiderElectric-SquareD_04820_1_DATA.pdf
    Type:
    Thermal Magnetic
    Current Rating:
    225 A
    Size:
    4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
    Number of Poles:
    3
    Voltage Rating:
    600 VAC, 250 VDC
    Interrupting Rating:
    65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC, 50 kA at 125/250 VDC
    Catalog:
    SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
    Prop 65 Warning:
    Yes
    MSRP $7,000.00
    Surplus $862.13
    Qty in Cart: 0
    Price:
    MSRP $7,000.00
    Surplus $862.13
    Subtotal:
  • Square D KHL36250 Molded Case Breakers (MCCBs)

    Square D KHL36250 Molded Case Breakers (MCCBs)

    MSRP $9,250.00
    Surplus $1,387.57
    SKU:  C15-7091 Brand:  Square D MPN:  KHL36250 UPC:   Shipping Weight:  7.45 lbs. Shipping Height:  9.00 In. Shipping Length:  13.00 In. Shipping Width:  6.00 In. Product...
    SKU:
    C15-7091
    MSRP $9,250.00
    Surplus $1,387.57
    Qty in Cart: 0
    Price:
    MSRP $9,250.00
    Surplus $1,387.57
    Subtotal:
  • Square D KI36125 Molded Case Breakers (MCCBs)

    Square D KI36125 Molded Case Breakers (MCCBs)

    MSRP $1,450.00
    Surplus $1,397.30
    SKU:  C15-7099 Brand:  Square D MPN:  KI36125 UPC:   Shipping Weight:  9.10 lbs. Shipping Height:  6.00 In. Shipping Length:  11.00 In. Shipping Width:  5.00 In. Product...
    SKU:
    C15-7099
    MSRP $1,450.00
    Surplus $1,397.30
    Qty in Cart: 0
    Price:
    MSRP $1,450.00
    Surplus $1,397.30
    Subtotal:
  • Square D LA26300AC Molded Case Breakers (MCCBs)

    Square D LA26300AC Molded Case Breakers (MCCBs)

    MSRP $4,053.00
    Surplus $933.92
    SKU:  C15-7783 Brand:  Square D MPN:  LA26300AC UPC:  78590100977 Shipping Weight:  15.95 lbs. Shipping Height:  10.00 In. Shipping Length:  18.00 In. Shipping Width:  7.00...
    SKU:
    C15-7783
    TS PIK:
    21332654
    Voltage Rating:
    600 VAC, 250 VDC
    Current Rating:
    300 A
    Number of Poles:
    2
    Interrupting Rating:
    22 kA at 600 VAC
    Short Description:
    600 VAC, 250 VDC, 300 A, 22 kA, 2-Pole, L-Frame, AC Phase, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
    Series:
    LA
    Type:
    Thermal Magnetic
    Data Sheet:
    SchneiderElectric-SquareD_47503_1_2_DATA.pdf
    Catalog:
    SchneiderElectric-SquareD_32357_9_61_CAT.pdf
    Prop 65 Warning:
    Yes
    Country of Origin:
    Mexico
    MSRP $4,053.00
    Surplus $933.92
    Qty in Cart: 0
    Price:
    MSRP $4,053.00
    Surplus $933.92
    Subtotal:
  • Square D LA36300 Molded Case Breakers (MCCBs) EA

    Square D LA36300 Molded Case Breakers (MCCBs) EA

    MSRP $5,000.00
    Surplus $1,210.94
    SKU:  C15-8642 Brand:  Square D MPN:  LA36300 UPC:  78590142624 Shipping Weight:  18.25 lbs. Shipping Height:  10.00 In. Shipping Length:  18.00 In. Shipping Width:  13.00 In...
    SKU:
    C15-8642
    TS PIK:
    111088563
    Current Rating:
    300 A
    Voltage Rating:
    600 VAC, 250 VDC
    Short Description:
    600 VAC, 250 VDC, 300 A, 22 kA, 3-Pole, L-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
    Series:
    LA
    Interrupting Rating:
    22 kA at 600 VAC
    Catalog:
    SchneiderElectric-SquareD_32357_9_61_CAT.pdf
    Type:
    Thermal Magnetic
    Data Sheet:
    SchneiderElectric-SquareD_47513_1_2_DATA.pdf
    Number of Poles:
    3
    Prop 65 Warning:
    Yes
    Country of Origin:
    United States
    MSRP $5,000.00
    Surplus $1,210.94
    Qty in Cart: 0
    Price:
    MSRP $5,000.00
    Surplus $1,210.94
    Subtotal:
  • Square D LA36350 Molded Case Breakers (MCCBs)

    Square D LA36350 Molded Case Breakers (MCCBs)

    MSRP $4,944.00
    Surplus $1,118.49
    SKU:  C15-7768 Brand:  Square D MPN:  LA36350 UPC:  78590142628 Shipping Weight:  16.45 lbs. Shipping Height:  9.00 In. Shipping Length:  13.00 In. Shipping Width:  13.00 In...
    SKU:
    C15-7768
    TS PIK:
    21332006
    Short Description:
    600 VAC, 250 VDC, 350 A, 22 kA, 3-Pole, L-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
    Series:
    LA
    Catalog:
    SchneiderElectric-SquareD_32357_9_61_CAT.pdf
    Current Rating:
    350 A
    Voltage Rating:
    600 VAC, 250 VDC
    Type:
    Thermal Magnetic
    Number of Poles:
    3
    Data Sheet:
    SchneiderElectric-SquareD_47515_1_2_DATA.pdf
    Interrupting Rating:
    22 kA at 600 VAC
    Prop 65 Warning:
    Yes
    Country of Origin:
    Mexico
    MSRP $4,944.00
    Surplus $1,118.49
    Qty in Cart: 0
    Price:
    MSRP $4,944.00
    Surplus $1,118.49
    Subtotal:
  • Square D LAL36200 Molded Case Breakers (MCCBs)

    Square D LAL36200 Molded Case Breakers (MCCBs)

    MSRP $4,619.00
    Surplus $1,486.51
    SKU:  C15-7740 Brand:  Square D MPN:  LAL36200 UPC:  78590136805 Shipping Weight:  16.25 lbs. Shipping Height:  9.00 In. Shipping Length:  18.00 In. Shipping Width:  12.00 In...
    SKU:
    C15-7740
    TS PIK:
    21333405
    Size:
    6 Inch Width x 5.84 Inch Depth x 11 Inch Height
    Terminal Type:
    Line/Load Lug
    Voltage Rating:
    600 VAC 50/60 Hertz, 250 VDC
    Number of Poles:
    3
    Frame Type:
    L
    Catalog:
    SchneiderElectric-SquareD_32357_7_37_CAT.pdf
    Series:
    LA
    Data Sheet:
    SchneiderElectric_14543_1_2_DATA.pdf
    Short Description:
    600 VAC 50/60 Hz, 250 VDC, 200 A, 22 kA, 3-Pole, L-Frame, Unit Mount, Line/Load Lug Terminal, Thermal Magnetic, Adjustable, Molded Case Circuit Breaker
    Installation/Operator:
    SchneiderElectric-SquareD_01906_INST.pdf
    Current Rating:
    200 A
    Type:
    Thermal Magnetic, Adjustable
    Maximum DC Voltage Rating:
    250 V
    CAD Drawings:
    SchneiderElectric-SquareD_74682_1_CAD.pdf
    Interrupting Rating:
    22 kA at 600 VAC, 10 kA at 250 VDC
    Maximum AC Voltage Rating:
    600 V
    Prop 65 Warning:
    Yes
    Country of Origin:
    Mexico
    MSRP $4,619.00
    Surplus $1,486.51
    Qty in Cart: 0
    Price:
    MSRP $4,619.00
    Surplus $1,486.51
    Subtotal:
  • Square D LAL36250 Molded Case Breakers (MCCBs)

    Square D LAL36250 Molded Case Breakers (MCCBs)

    MSRP $4,619.00
    Surplus $938.00
    SKU:  C15-7718 Brand:  Square D MPN:  LAL36250 UPC:  78590142674 Shipping Weight:  15.65 lbs. Shipping Height:  10.00 In. Shipping Length:  17.00 In. Shipping Width:  9.00 In...
    SKU:
    C15-7718
    TS PIK:
    21261505
    Data Sheet:
    SchneiderElectric_14548_1_2_DATA.pdf
    Catalog:
    SchneiderElectric-SquareD_32357_7_37_CAT.pdf
    Type:
    Thermal Magnetic, Adjustable
    CAD Drawings:
    SchneiderElectric-SquareD_74682_1_CAD.pdf
    Maximum AC Voltage Rating:
    600 V
    Size:
    6 Inch Width x 5.84 Inch Depth x 11 Inch Height
    Maximum DC Voltage Rating:
    250 V
    Interrupting Rating:
    22 kA at 600 VAC, 10 kA at 250 VDC
    Voltage Rating:
    600 VAC 50/60 Hertz, 250 VDC
    Number of Poles:
    3
    Terminal Type:
    Line/Load Lug
    Current Rating:
    250 A
    Frame Type:
    L
    Short Description:
    600 VAC 50/60 Hz, 250 VDC, 250 A, 22 kA, 3-Pole, L-Frame, Unit Mount, Line/Load Lug Terminal, Thermal Magnetic, Adjustable, Molded Case Circuit Breaker
    Series:
    LA
    Installation/Operator:
    SchneiderElectric-SquareD_01906_INST.pdf
    Prop 65 Warning:
    Yes
    Country of Origin:
    United States
    MSRP $4,619.00
    Surplus $938.00
    Qty in Cart: 0
    Price:
    MSRP $4,619.00
    Surplus $938.00
    Subtotal:
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