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
  • Crouse-Hinds MP120GF Miniature Circuit Breakers (MCBs)

    Crouse-Hinds MP120GF Miniature Circuit Breakers (MCBs)

    MSRP $181.00
    Surplus $66.28
    Crouse-Hinds MP120GF Miniature Circuit Breakers (MCBs)​ ARCA SKU:  E30-7369 Brand:  Crouse-Hinds MPN:  MP120GF UPC:  04089227815 Shipping Weight:  0.50 lbs. Shipping Height:  2.00 In...
    SKU:
    E30-7369
    TS PIK:
    120072461
    Type:
    Circuit Interrupter
    Short Description:
    120 V, 20 A, 10 kA, 1-Pole, Plug-In, MP-GT, MP-HGT, Class A, Feeder, Miniature, Ground Fault, Circuit Breaker
    Terminal Type:
    Load Lug
    Interrupting Rating:
    10 kA
    Current Rating:
    20 A
    Size:
    1 Inch W x 2.66 Inch D x 2.84 Inch H
    Mounting:
    Plug-On
    Wire Size:
    14 to 10 AWG (Copper), 12 to 8 AWG (Aluminum)
    Used On:
    Loadcenter
    Number of Poles:
    1
    Voltage Rating:
    120 VAC
    Data Sheet:
    SiemensAG_01517_1_DATA.pdf
    Country of Origin:
    Philippines
    MSRP $181.00
    Surplus $66.28
    Qty in Cart: 0
    Price:
    MSRP $181.00
    Surplus $66.28
    Subtotal:
  • Crouse-Hinds MP215 Miniature Circuit Breakers (MCBs)

    Crouse-Hinds MP215 Miniature Circuit Breakers (MCBs)

    MSRP $144.90
    Surplus $20.03
    Crouse-Hinds MP215 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  E30-7370 Brand:  Crouse-Hinds MPN:  MP215 UPC:  04089251893 Shipping Weight:  0.90 lbs. Shipping Height:  4.00 In...
    SKU:
    E30-7370
    TS PIK:
    21029784
    Size:
    2 Inch W x 3 Inch D x 3 1/8 Inch H
    Current Rating:
    15 A
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    2
    Series:
    MP-T
    Mounting:
    Plug-On
    Wire Size:
    16 to 14 AWG (Copper/Aluminum)
    Terminal Type:
    Load Lug
    Short Description:
    120/240 V, 15 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Vage, Miniature, Circuit Breaker
    Type:
    Common Trip
    Data Sheet:
    SiemensAG_01522_1_DATA.pdf
    Used On:
    Loadcenter
    Interrupting Rating:
    10 kA
    Country of Origin:
    Mexico
    MSRP $144.90
    Surplus $20.03
    Qty in Cart: 0
    Price:
    MSRP $144.90
    Surplus $20.03
    Subtotal:
  • Crouse-Hinds QBGFEP1020 Miniature Circuit Breakers (MCBs)

    Crouse-Hinds QBGFEP1020 Miniature Circuit Breakers (MCBs)

    MSRP $489.14
    Surplus $365.80
    SKU:  C15-5528 Brand:  Crouse-Hinds MPN:  QBGFEP1020 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-5528
    TS PIK:
    21505083
    Type:
    Thermal Magnetic
    Used On:
    Panelboard
    Mounting:
    Bolt-On
    Wire Size:
    14 to 4 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC, 20 A, 10 kA, 30 mA Trip Level, 1-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Equipment Protector, Ground Fault Circuit Breaker
    Series:
    QBGFEP
    Terminal Type:
    Extended Tang Line, Steel Box Lug Load
    Catalog:
    Eaton_21247_4_9_CAT.pdf
    Voltage Rating:
    120 VAC
    Number of Poles:
    1
    Current Rating:
    20 A
    Interrupting Rating:
    10 kA
    Country of Origin:
    United States
    MSRP $489.14
    Surplus $365.80
    Qty in Cart: 0
    Price:
    MSRP $489.14
    Surplus $365.80
    Subtotal:
  • Crouse-Hinds QBHW2040 Miniature Circuit Breakers (MCBs)

    Crouse-Hinds QBHW2040 Miniature Circuit Breakers (MCBs)

    MSRP $290.26
    Surplus $84.07
    Crouse-Hinds QBHW2040 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-5768 Brand:  Crouse-Hinds MPN:  QBHW2040 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-5768
    TS PIK:
    21510596
    Short Description:
    120/240 VAC, 40 A, 22 kA, 2-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Interrupting Rating:
    22000 A at 120/240 VAC, 5000 A at 24 to 48/62.5/80 VDC
    Series:
    QBHW
    Catalog:
    Eaton_03771_V4T1_12_CAT.pdf
    Type:
    Thermal Magnetic
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Number of Poles:
    2
    Mounting:
    Bolt-On
    Terminal Type:
    Extended Tang Line Terminal, Box Lug Load Terminal
    Current Rating:
    40 A
    Voltage Rating:
    120/240 VAC
    MSRP $290.26
    Surplus $84.07
    Qty in Cart: 0
    Price:
    MSRP $290.26
    Surplus $84.07
    Subtotal:
  • Crouse-Hinds QC1015 Miniature Circuit Breakers (MCBs) QC 1P 15A 50/60Hz 1Ph EA

    Crouse-Hinds QC1015 Miniature Circuit Breakers (MCBs) QC 1P 15A 50/60Hz 1Ph EA

    MSRP $127.00
    Surplus $22.00
    Crouse-Hinds QC1015 Miniature Circuit Breakers (MCBs) QC 1P 15A 50/60Hz 1Ph EA​ ARCA SKU:  C15-5537 Brand:  Crouse-Hinds MPN:  QC1015 UPC:  786679308851 Shipping Weight:  0.25 lbs. Shipping...
    SKU:
    C15-5537
    TS PIK:
    21508933
    Short Description:
    120/240 VAC, 15 A, 10 kA, 1-Pole, Steel Ring Line/Load Terminal, Cable-In/Out Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Terminal Type:
    Ring
    Current Rating:
    15 A
    Type:
    Thermal Magnetic
    Series:
    QC
    Number of Poles:
    1
    Voltage Rating:
    120/240 VAC
    Wire Size:
    14 to 10 AWG Aluminum/Copper (Load)
    Mounting:
    Cable-In, Cable Out
    Catalog:
    Eaton_03771_V4T1_19_V4T1_20_V4T1_46_CAT.pdf
    Interrupting Rating:
    10000 A at 120/240 VAC, 5000 A at 24 to 48 VDC, 3800 A at 62.5 VDC
    Country of Origin:
    Dominican Republic
    Approval:
    UL 489, CSA
    MSRP $127.00
    Surplus $22.00
    Qty in Cart: 0
    Price:
    MSRP $127.00
    Surplus $22.00
    Subtotal:
  • Crouse-Hinds QC1020 Miniature Circuit Breakers (MCBs) EA

    Crouse-Hinds QC1020 Miniature Circuit Breakers (MCBs) EA

    MSRP $87.42
    Surplus $24.25
    Crouse-Hinds QC1020 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU:  C15-5360 Brand:  Crouse-Hinds MPN:  QC1020 UPC:  78667930888 Shipping Weight:  0.35 lbs. Shipping Height:  4.00 In...
    SKU:
    C15-5360
    TS PIK:
    21508934
    Terminal Type:
    Ring
    Series:
    QC
    Voltage Rating:
    120/240 VAC
    Type:
    Thermal Magnetic
    Wire Size:
    14 to 10 AWG Copper/Aluminum (Load)
    Catalog:
    Eaton_03771_V4T1_19_V4T1_20_V4T1_46_CAT.pdf
    Mounting:
    Cable-In/Cable-Out
    Current Rating:
    20 A
    Interrupting Rating:
    10000 A at 120/240 VAC, 5000 A at 24 to 48 VDC, 3800 A at 62.5 VDC
    Short Description:
    120/240 VAC, 20 A, 10 kA, 1-Pole, Steel Ring Line/Load Terminal, Cable-In/Out Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Number of Poles:
    1
    Country of Origin:
    Dominican Republic
    Approval:
    UL 489, CSA
    MSRP $87.42
    Surplus $24.25
    Qty in Cart: 0
    Price:
    MSRP $87.42
    Surplus $24.25
    Subtotal:
  • Crouse-Hinds QC1020D Miniature Circuit Breakers (MCBs) QC 1P 20A 50/60Hz 1Ph EA

    Crouse-Hinds QC1020D Miniature Circuit Breakers (MCBs) QC 1P 20A 50/60Hz 1Ph EA

    MSRP $110.84
    Surplus $25.37
    Crouse-Hinds QC1020D Miniature Circuit Breakers (MCBs) QC 1P 20A 50/60Hz 1Ph EA​ ARCA SKU:  C15-5587 Brand:  Crouse-Hinds MPN:  QC1020D UPC:  786679153215 Shipping Weight:  0.25 lbs. Shipping...
    SKU:
    C15-5587
    TS PIK:
    21505552
    Short Description:
    EATON QUICKLAG TYPE QC INDUSTRIAL THERMAL-MAGNETIC CIRCUIT BREAKER,INDUSTRIAL CI
    Country of Origin:
    Dominican Republic
    MSRP $110.84
    Surplus $25.37
    Qty in Cart: 0
    Price:
    MSRP $110.84
    Surplus $25.37
    Subtotal:
  • Crouse-Hinds QC1030 Miniature Circuit Breakers (MCBs) QC 1P 30A 50/60Hz 1Ph EA

    Crouse-Hinds QC1030 Miniature Circuit Breakers (MCBs) QC 1P 30A 50/60Hz 1Ph EA

    MSRP $87.42
    Surplus $17.84
    Crouse-Hinds QC1030 Miniature Circuit Breakers (MCBs) QC 1P 30A 50/60Hz 1Ph EA​ ARCA SKU:  C15-5538 Brand:  Crouse-Hinds MPN:  QC1030 UPC:  786679308943 Shipping Weight:  0.25 lbs. Shipping...
    SKU:
    C15-5538
    TS PIK:
    21508936
    Interrupting Rating:
    10000 A at 120/240 VAC, 5000 A at 24 to 48 VDC, 3800 A at 62.5 VDC
    Terminal Type:
    Box Lug
    Catalog:
    Eaton_03771_V4T1_19_V4T1_20_V4T1_46_CAT.pdf
    Short Description:
    120/240 VAC, 30 A, 10 kA, 1-Pole, Aluminum Box Lug Line/Steel Box Lug Load Terminal, Cable-In/Out Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Series:
    QC
    Voltage Rating:
    120/240 VAC
    Current Rating:
    30 A
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Type:
    Thermal Magnetic
    Mounting:
    Cable-In, Cable Out
    Number of Poles:
    1
    Country of Origin:
    Dominican Republic
    Approval:
    UL 489, CSA
    MSRP $87.42
    Surplus $17.84
    Qty in Cart: 0
    Price:
    MSRP $87.42
    Surplus $17.84
    Subtotal:
  • Crouse-Hinds QC2020 Miniature Circuit Breakers (MCBs) QC 2P 20A 50/60Hz 3Ph EA

    Crouse-Hinds QC2020 Miniature Circuit Breakers (MCBs) QC 2P 20A 50/60Hz 3Ph EA

    MSRP $253.00
    Surplus $45.91
    Crouse-Hinds QC2020 Miniature Circuit Breakers (MCBs) QC 2P 20A 50/60Hz 3Ph EA​ ARCA SKU:  C15-5539 Brand:  Crouse-Hinds MPN:  QC2020 UPC:  786679309377 Shipping Weight:  0.60 lbs. Shipping...
    SKU:
    C15-5539
    TS PIK:
    21508957
    Voltage Rating:
    120/240 VAC
    Terminal Type:
    Ring
    Series:
    QC
    Short Description:
    120/240 VAC, 20 A, 10 kA, 2-Pole, Steel Ring Line/Load Terminal, Cable-In/Out Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Mounting:
    Cable-In, Cable Out
    Number of Poles:
    2
    Current Rating:
    20 A
    Wire Size:
    14 to 10 AWG Aluminum/Copper (Load)
    Catalog:
    Eaton_03771_V4T1_19_V4T1_20_V4T1_46_CAT.pdf
    Interrupting Rating:
    10000 A at 120/240 VAC, 5000 A at 24 to 48/62.5/80 VDC
    Type:
    Thermal Magnetic
    Country of Origin:
    Dominican Republic
    Approval:
    UL 489, CSA
    MSRP $253.00
    Surplus $45.91
    Qty in Cart: 0
    Price:
    MSRP $253.00
    Surplus $45.91
    Subtotal:
  • Crouse-Hinds UVH3RP21K Circuit Breaker Accessories 24V EA Crouse-Hinds UVH3RP21K Circuit Breaker Accessories 24V EA

    Crouse-Hinds UVH3RP21K Circuit Breaker Accessories 24V EA

    MSRP $1,024.97
    Surplus $279.60
    SKU:  E30-11579 Brand:  Crouse-Hinds MPN:  UVH3RP21K UPC:  78667942059 Shipping Weight:  0.45 lbs. Shipping Height:  3.00 In. Shipping Length:  6.00 In. Shipping Width:  4.00...
    SKU:
    E30-11579
    Type:
    DC
    Series:
    C, UVH
    Used On:
    K Frame HMCP Series Motor Circuit Protector
    Catalog:
    Eaton_46579_V4T2_428_CAT.pdf
    Short Description:
    24 VDC, Pigtail Lead Connection, Right Pole, UnderVage Release Mechanism for K-Frame HMCP Molded Case Circuit Breaker
    Country of Origin:
    Dominican Republic
    MSRP $1,024.97
    Surplus $279.60
    Qty in Cart: 0
    Price:
    MSRP $1,024.97
    Surplus $279.60
    Subtotal:
  • Cutler Hammer HMCP007C0CA02 Motor Circuit Protector (MCPs) EA

    Cutler Hammer HMCP007C0CA02 Motor Circuit Protector (MCPs) EA

    MSRP $1,719.96
    Surplus $462.42
    SKU:  U00-3251 Brand:  Cutler-Hammer MPN:  HMCP007C0CA02 UPC:  78667924788 Shipping Weight:  4.65 lbs. Shipping Height:  5.00 In. Shipping Length:  8.00 In. Shipping...
    SKU:
    U00-3251
    Frame Type:
    F
    Type:
    Molded Case, Magnetic
    Catalog:
    Eaton_46579_V4T2_254_V4T2_255_V4T2_394_V4T2_395_V4T2_398_V4T2_415_CAT.pdf
    Installation/Operator:
    Eaton_00176_INST.pdf
    Terminal Type:
    Non-Aluminum Line and Load Terminal
    Short Description:
    600 VAC, 250 VDC, 7 A, 3-Pole, 21 to 70 A Trip, NEMA 0, Non-Aluminum Terminal, F Frame, Molded Case, Magnetic, Motor Circuit Protector with (1) Left Auxiliary Switch
    Voltage Rating:
    600 VAC, 250 VDC
    Maximum AC Voltage Rating:
    600 V
    Maximum DC Voltage Rating:
    250 V
    Current Rating:
    7 A
    Series:
    C, HMCP
    Number of Poles:
    3
    CAD Drawings:
    Eaton_00054_1-9_CAD.pdf
    Country of Origin:
    Dominican Republic
    Approval:
    UL 489, CSA C22.2, CE
    MSRP $1,719.96
    Surplus $462.42
    Qty in Cart: 0
    Price:
    MSRP $1,719.96
    Surplus $462.42
    Subtotal:
  • Cutler Hammer HMCP050G2C Motor Circuit Protector (MCPs) EA

    Cutler Hammer HMCP050G2C Motor Circuit Protector (MCPs) EA

    MSRP $1,503.50
    Surplus $332.74
    SKU:  C15-6837 Brand:  Cutler-Hammer MPN:  HMCP050G2C UPC:  78667903308 Shipping Weight:  4.50 lbs. Shipping Height:  5.00 In. Shipping Length:  8.00 In. Shipping Width:  5...
    SKU:
    C15-6837
    Short Description:
    600 VAC, 250 VDC, 50 A, 3-Pole, 80 to 120 A Trip, NEMA 2, Non-Aluminum Terminal, F Frame, Molded Case, Magnetic, Motor Circuit Protector
    Series:
    C, HMCP
    Frame Type:
    F
    Maximum DC Voltage Rating:
    250 V
    Catalog:
    Eaton_46579_V4T2_254_V4T2_255_V4T2_394_V4T2_395_V4T2_399_CAT.pdf
    Number of Poles:
    3
    CAD Drawings:
    Eaton_00054_1-9_CAD.pdf
    Voltage Rating:
    600 VAC, 250 VDC
    Type:
    Molded Case, Magnetic
    Current Rating:
    50 A
    Installation/Operator:
    Eaton_00176_INST.pdf
    Maximum AC Voltage Rating:
    600 V
    Terminal Type:
    Non-Aluminum Line and Load Terminal
    Country of Origin:
    Dominican Republic
    Approval:
    UL 489, CSA C22.2, CE
    MSRP $1,503.50
    Surplus $332.74
    Qty in Cart: 0
    Price:
    MSRP $1,503.50
    Surplus $332.74
    Subtotal:
  • Cutler Hammer HMCP250C5C Motor Circuit Protector (MCPs) EA

    Cutler Hammer HMCP250C5C Motor Circuit Protector (MCPs) EA

    MSRP $3,137.51
    Surplus $540.88
    SKU:  C15-6866 Brand:  Cutler-Hammer MPN:  HMCP250C5C UPC:  78667915100 Shipping Weight:  8.90 lbs. Shipping Height:  7.00 In. Shipping Length:  13.00 In. Shipping Width:  7...
    SKU:
    C15-6866
    Country of Origin:
    Dominican Republic
    MSRP $3,137.51
    Surplus $540.88
    Qty in Cart: 0
    Price:
    MSRP $3,137.51
    Surplus $540.88
    Subtotal:
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