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 NGB3B125B Miniature Circuit Breakers (MCBs) 3P 125A

    Siemens NGB3B125B Miniature Circuit Breakers (MCBs) 3P 125A

    MSRP $4,160.00
    Surplus $650.37
    SKU:  C15-7630 Brand:  Siemens MPN:  NGB3B125B UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-7630
    Country of Origin:
    Mexico
    MSRP $4,160.00
    Surplus $650.37
    Qty in Cart: 0
    Price:
    MSRP $4,160.00
    Surplus $650.37
    Subtotal:
  • Siemens P120X Miniature Circuit Breakers (MCBs)

    Siemens P120X Miniature Circuit Breakers (MCBs)

    MSRP $141.00
    Surplus $14.99
    Siemens P120X Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-8794 Brand:  Siemens MPN:  P120X UPC:   Shipping Weight:  0.25 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-8794
    Number of Poles:
    1
    MSRP $141.00
    Surplus $14.99
    Qty in Cart: 0
    Price:
    MSRP $141.00
    Surplus $14.99
    Subtotal:
  • Siemens P130GF Miniature Circuit Breakers (MCBs)

    Siemens P130GF Miniature Circuit Breakers (MCBs)

    MSRP $312.00
    Surplus $68.51
    Siemens P130GF Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-8792 Brand:  Siemens MPN:  P130GF UPC:   Shipping Weight:  0.40 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-8792
    Number of Poles:
    1
    MSRP $312.00
    Surplus $68.51
    Qty in Cart: 0
    Price:
    MSRP $312.00
    Surplus $68.51
    Subtotal:
  • Siemens P150 Molded Case Breakers (MCCBs)

    Siemens P150 Molded Case Breakers (MCCBs)

    MSRP $80.00
    Surplus $21.64
    Siemens P150 Molded Case Breakers (MCCBs)​ ARCA SKU:  C15-8793 Brand:  Siemens MPN:  P150 UPC:   Shipping Weight:  0.25 lbs. Shipping Height:  2.00 In. Shipping Length:  4.00 In...
    SKU:
    C15-8793
    MSRP $80.00
    Surplus $21.64
    Qty in Cart: 0
    Price:
    MSRP $80.00
    Surplus $21.64
    Subtotal:
  • Siemens P1E30MC250C Circuit Breaker Accessories Siemens P1E30MC250C Circuit Breaker Accessories

    Siemens P1E30MC250C Circuit Breaker Accessories

    MSRP $570.83
    Surplus $290.80
    SKU:  C15-11525 Brand:  Siemens MPN:  P1E30MC250C UPC:   Shipping Weight:  20.30 lbs. Shipping Height:  15.00 In. Shipping Length:  38.00 In. Shipping Width:  7.00 In...
    SKU:
    C15-11525
    Type:
    Convertible Main Lug, Unassembled
    Series:
    P1
    Catalog:
    SiemensAG_01834_15_16_CAT.pdf
    Short Description:
    480 VAC Star/277 VAC, 250 A, 3-Phase 4-Wire, 30-Circuit, Copper, Panelboard Interior
    Data Sheet:
    SiemensAG_06802_1_DATA.pdf
    MSRP $570.83
    Surplus $290.80
    Qty in Cart: 0
    Price:
    MSRP $570.83
    Surplus $290.80
    Subtotal:
  • Siemens P1E42MC400C Circuit Breaker Accessories

    Siemens P1E42MC400C Circuit Breaker Accessories

    MSRP $2,380.00
    Surplus $1,102.92
    SKU:  C15-11526 Brand:  Siemens MPN:  P1E42MC400C UPC:   Shipping Weight:  49.00 lbs. Shipping Height:  15.00 In. Shipping Length:  64.00 In. Shipping Width:  7.00 In...
    SKU:
    C15-11526
    Short Description:
    480 VAC Star/277 VAC, 400 A, 3-Phase 4-Wire, 42-Circuit, Copper, Panelboard Interior
    Type:
    Convertible Main Lug, Unassembled
    Catalog:
    SiemensAG_01834_15_16_CAT.pdf
    Data Sheet:
    SiemensAG_06812_1_DATA.pdf
    MSRP $2,380.00
    Surplus $1,102.92
    Qty in Cart: 0
    Price:
    MSRP $2,380.00
    Surplus $1,102.92
    Subtotal:
  • Siemens P1X42MC400C Circuit Breaker Accessories Siemens P1X42MC400C Circuit Breaker Accessories

    Siemens P1X42MC400C Circuit Breaker Accessories

    MSRP $1,074.46
    Surplus $723.28
    SKU:  C15-11528 Brand:  Siemens MPN:  P1X42MC400C UPC:   Shipping Weight:  48.00 lbs. Shipping Height:  15.00 In. Shipping Length:  64.00 In. Shipping Width:  7.00 In...
    SKU:
    C15-11528
    Catalog:
    SiemensAG_01834_15_16_CAT.pdf
    Type:
    Convertible Main Lug, Unassembled
    Series:
    P1
    Short Description:
    208 VAC Star/120 VAC, 400 A, 3-Phase 4-Wire, 42-Circuit, Copper, Panelboard Interior
    Data Sheet:
    SiemensAG_06835_1_DATA.pdf
    MSRP $1,074.46
    Surplus $723.28
    Qty in Cart: 0
    Price:
    MSRP $1,074.46
    Surplus $723.28
    Subtotal:
  • Siemens P2030 Miniature Circuit Breakers (MCBs)

    Siemens P2030 Miniature Circuit Breakers (MCBs)

    MSRP $185.00
    Surplus $62.43
    Siemens P2030 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-8798 Brand:  Siemens MPN:  P2030 UPC:   Shipping Weight:  0.30 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-8798
    Number of Poles:
    2
    MSRP $185.00
    Surplus $62.43
    Qty in Cart: 0
    Price:
    MSRP $185.00
    Surplus $62.43
    Subtotal:
  • Siemens P215 Molded Case Breakers (MCCBs) Siemens P215 Molded Case Breakers (MCCBs)

    Siemens P215 Molded Case Breakers (MCCBs)

    Surplus $66.55
    Siemens P215 Molded Case Breakers (MCCBs)​ ARCA SKU:  C15-4675 Brand:  Siemens MPN:  P215 UPC:   Shipping Weight:  0.50 lbs. Shipping Height:  4.00 In. Shipping Length:  4.00 In...
    SKU:
    C15-4675
    Frame Type:
    P
    Voltage Rating:
    240 V
    Current Rating:
    15 A
    Number of Poles:
    2
    Short Description:
    Siemens 15 A, 2 Pole, 240 V, Molded Case Circuit Breakers
    Surplus $66.55
    Qty in Cart: 0
    Price:
    Surplus $66.55
    Subtotal:
  • Siemens P220A Miniature Circuit Breakers (MCBs)

    Siemens P220A Miniature Circuit Breakers (MCBs)

    MSRP $291.00
    Surplus $92.58
    Siemens P220A Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-8795 Brand:  Siemens MPN:  P220A UPC:   Shipping Weight:  0.45 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-8795
    Number of Poles:
    2
    MSRP $291.00
    Surplus $92.58
    Qty in Cart: 0
    Price:
    MSRP $291.00
    Surplus $92.58
    Subtotal:
  • Siemens Q11500S01 Miniature Circuit Breakers (MCBs) EA

    Siemens Q11500S01 Miniature Circuit Breakers (MCBs) EA

    MSRP $300.00
    Surplus $119.04
    SKU:  C15-10522 Brand:  Siemens MPN:  Q11500S01 UPC:  78364323794 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10522
    TS PIK:
    115559473
    Number of Poles:
    1
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Type:
    Thermal and Fixed Magnetic
    Interrupting Rating:
    10 kA
    Used On:
    Loadcenter
    Short Description:
    120/240 VAC, 15 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, 120 VAC Shunt Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
    Current Rating:
    15 A
    Wire Size:
    14 to 6 AWG (Copper/Aluminum)
    Size:
    1 Inch W x 3 Inch D x 3-1/8 Inch H
    Mounting:
    Plug-On
    Voltage Rating:
    120 VAC at 50/60 Hz
    Terminal Type:
    Load Lug
    Catalog:
    SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
    Data Sheet:
    SiemensAG_06962_1_DATA.pdf
    Country of Origin:
    Mexico
    MSRP $300.00
    Surplus $119.04
    Qty in Cart: 0
    Price:
    MSRP $300.00
    Surplus $119.04
    Subtotal:
  • Siemens Q115DF Miniature Circuit Breakers (MCBs) EA

    Siemens Q115DF Miniature Circuit Breakers (MCBs) EA

    MSRP $120.00
    Surplus $89.10
    SKU:  C15-10523 Brand:  Siemens MPN:  Q115DF UPC:  88762181730 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10523
    TS PIK:
    125704271
    Short Description:
    120 V, 15 A, 10 kA, 1-Pole, Plug-On Mount, QFGA2, Self-Test, Arc Fault/Ground Fault, Circuit Breaker
    Current Rating:
    15 A
    Voltage Rating:
    120 V
    Interrupting Rating:
    10 kA
    Used On:
    Load Center and Panelboard
    Catalog:
    SiemensAG_01502_1_14_CAT.pdf
    Mounting:
    Plug-On
    Data Sheet:
    SiemensAG_01533_1_DATA.pdf
    Size:
    3 Inch Width x 1 Inch Depth x 4.5 Inch Height
    Country of Origin:
    Philippines
    MSRP $120.00
    Surplus $89.10
    Qty in Cart: 0
    Price:
    MSRP $120.00
    Surplus $89.10
    Subtotal:
  • Siemens Q115DFN Miniature Circuit Breakers (MCBs) EA

    Siemens Q115DFN Miniature Circuit Breakers (MCBs) EA

    MSRP $120.00
    Surplus $81.00
    SKU:  C15-10524 Brand:  Siemens MPN:  Q115DFN UPC:  80476690657 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10524
    TS PIK:
    128131349
    Terminal Type:
    Load Lug
    Voltage Rating:
    120 VAC
    Mounting:
    Plug-On
    Number of Poles:
    1
    Interrupting Rating:
    10 kA
    Catalog:
    SiemensAG_09213_7_19_CAT.pdf
    Short Description:
    120 VAC, 15 A, 10 kA, 1-Pole, Load Lug Terminal, QFGA2N Frame, Plug-On Mount, Arc Fault/Ground Fault, Neutral, Low Vage, Circuit Breaker
    Installation/Operator:
    SiemensAG_00702_INST.pdf
    Current Rating:
    15 A
    Type:
    Low Vage, Neutral
    Used On:
    Load Center
    Wire Size:
    14 to 10 AWG (Copper), 12 to 10 AWG (Aluminum)
    Country of Origin:
    Philippines
    MSRP $120.00
    Surplus $81.00
    Qty in Cart: 0
    Price:
    MSRP $120.00
    Surplus $81.00
    Subtotal:
  • Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph

    Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph

    MSRP $123.00
    Surplus $20.89
    Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph​ ARCA SKU:  C15-2729 Brand:  Siemens MPN:  Q115H UPC:  783643156319 Shipping Weight:  0.30 Shipping Height:  1.00 In...
    SKU:
    C15-2729
    Type:
    Thermal and Fixed Magnetic
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Size:
    1 Inch W x 3 Inch D x 3-1/8 Inch H
    Volts:
    120 VAC at 50/60 Hz
    Amps:
    32 A
    Used On:
    Loadcenter
    Poles:
    1
    Mounting:
    Plug-In
    Interrupting Rating:
    22 kA
    Terminal Type:
    Load Lug
    Wire Size:
    14 to 6 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC, 15 A, 22 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QPH Frame, Thermal Magnetic Trip Unit
    Catalog:
    SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
    Data Sheet:
    SiemensAG_06965_1_DATA.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    MSRP $123.00
    Surplus $20.89
    Qty in Cart: 0
    Price:
    MSRP $123.00
    Surplus $20.89
    Subtotal:
  • Siemens Q12000S01 Shunt Trips 120V

    Siemens Q12000S01 Shunt Trips 120V

    MSRP $307.00
    Surplus $106.40
    Siemens Q12000S01 Shunt Trips 120V​ ARCA SKU:  A13-1401 Brand:  Siemens MPN:  Q12000S01 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In...
    SKU:
    A13-1401
    TS PIK:
    21367397
    Terminal Type:
    Load Lug
    Type:
    Thermal and Fixed Magnetic
    Voltage Rating:
    120 VAC at 50/60 Hz
    Short Description:
    120/240 VAC, 20 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, 120 VAC Shunt Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
    Current Rating:
    20 A
    Catalog:
    SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
    Number of Poles:
    1
    Used On:
    Loadcenter
    Data Sheet:
    SiemensAG_06966_1_DATA.pdf
    Mounting:
    Plug-On
    Size:
    1 Inch W x 3 Inch D x 3-1/8 Inch H
    Interrupting Rating:
    10 kA
    Wire Size:
    14 to 6 AWG (Copper/Aluminum)
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Country of Origin:
    Mexico
    MSRP $307.00
    Surplus $106.40
    Qty in Cart: 0
    Price:
    MSRP $307.00
    Surplus $106.40
    Subtotal:
  • Siemens Q120DF Miniature Circuit Breakers (MCBs) EA

    Siemens Q120DF Miniature Circuit Breakers (MCBs) EA

    MSRP $120.00
    Surplus $89.10
    SKU:  C15-10525 Brand:  Siemens MPN:  Q120DF UPC:  88762181732 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10525
    TS PIK:
    125704273
    Current Rating:
    20 A
    Size:
    3 Inch Width x 1 Inch Depth x 4.5 Inch Height
    Short Description:
    120 V, 20 A, 10 kA Interrupt, 1-Pole, Plug-On Mount, QFGA2/QFGAH2/HQFGA2-Frame, Self-Test, Arc Fault/Ground Fault, Circuit Breaker
    Voltage Rating:
    120 VAC
    Used On:
    Load Center and Panelboard
    Data Sheet:
    SiemensAG_09373_1_2_DATA.pdf
    Catalog:
    SiemensAG_23945_7_19_CAT.pdf
    Mounting:
    Plug-On
    Installation/Operator:
    SiemensAG_00694_INST.pdf
    Interrupting Rating:
    10 kA
    Country of Origin:
    Philippines
    MSRP $120.00
    Surplus $89.10
    Qty in Cart: 0
    Price:
    MSRP $120.00
    Surplus $89.10
    Subtotal:
  • Siemens Q120DFN Molded Case Breakers (MCCBs) EA Siemens Q120DFN Molded Case Breakers (MCCBs) EA

    Siemens Q120DFN Molded Case Breakers (MCCBs) EA

    MSRP $89.50
    Surplus $51.70
    Siemens Q120DFN Molded Case Breakers (MCCBs) EA​ ARCA SKU:  C15-9303 Brand:  Siemens MPN:  Q120DFN UPC:  80476690659 Shipping Weight:  0.25 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-9303
    Number of Poles:
    1
    Voltage Rating:
    120 VAC
    Installation/Operator:
    SiemensAG_00694_INST.pdf
    Type:
    Low Vage, Neutral, Dual Function
    Short Description:
    120 VAC, 20 A, 10 kA, 5 mA, 1-Pole, QFGA2N-Frame, Plug-On Mount, Neutral, Low Vage, Dual Function, Arc Fault/Ground Fault, Circuit Breaker
    Interrupting Rating:
    10 kA
    Catalog:
    SiemensAG_23945_7_19_CAT.pdf
    Current Rating:
    20 A
    Used On:
    Load Center
    Mounting:
    Plug-On
    Country of Origin:
    Philippines
    MSRP $89.50
    Surplus $51.70
    Qty in Cart: 0
    Price:
    MSRP $89.50
    Surplus $51.70
    Subtotal:
  • Siemens Q120H Miniature Circuit Breakers (MCBs) 120V

    Siemens Q120H Miniature Circuit Breakers (MCBs) 120V

    MSRP $94.25
    Surplus $13.16
    Siemens Q120H Miniature Circuit Breakers (MCBs) 120V​ ARCA SKU:  C15-6185 Brand:  Siemens MPN:  Q120H UPC:  78364315632 Shipping Weight:  0.30 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-6185
    TS PIK:
    21366717
    Short Description:
    120/240 VAC, 20 A, 22 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QPH Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
    Type:
    Thermal and Fixed Magnetic
    Terminal Type:
    Load Lug
    Current Rating:
    20 A
    Used On:
    Loadcenter
    Data Sheet:
    SiemensAG_06969_1_DATA.pdf
    Voltage Rating:
    120 VAC
    Size:
    1 Inch W x 3 Inch D x 3-1/8 Inch H
    Mounting:
    Plug-On
    Interrupting Rating:
    22 kA
    Number of Poles:
    1
    Catalog:
    SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Wire Size:
    14 to 6 AWG (Copper/Aluminum)
    Country of Origin:
    Mexico
    MSRP $94.25
    Surplus $13.16
    Qty in Cart: 0
    Price:
    MSRP $94.25
    Surplus $13.16
    Subtotal:
  • Total: items /

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