Circuit Breakers

Circuit Breakers

Circuit Breakers

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.

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  • Siemens B230 Miniature Circuit Breakers (MCBs) B 2P 30A 240V EA Siemens B230 Miniature Circuit Breakers (MCBs) B 2P 30A 240V EA
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    Siemens B230 Miniature Circuit Breakers (MCBs) B 2P 30A 240V EA

    MSRP $258.65
    Surplus $39.42
    Siemens B230 Miniature Circuit Breakers (MCBs) B 2P 30A 240V EA​ ARCA SKU:  C15-2271 Brand:  Siemens MPN:  B230 UPC:  78364326355 Shipping Weight:  0.65 lbs. Shipping Height:  4.00 In...
    SKU:
    C15-2271
    Type:
    Molded Case
    Type:
    Branch
    Type:
    BL
    Approval:
    UL 489
    Volts:
    120/240 VAC
    Amps:
    32 A
    Poles:
    2
    Interrupting Rating:
    10 kA
    Application:
    Electrical Distribution
    Installation:
    Bolt-On
    Short Description:
    120/240 VAC 50/60 Hz, 30 A, 10 kA, 2-Pole, BL Frame, Bolt-On, Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
    Catalog:
    SiemensAG_01502_5_8_5_19_10_14_CAT.pdf
    Data Sheet:
    SiemensAG_01508_1_DATA.pdf
    Current Rating:
    30 A
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    2
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $258.65
    Surplus $39.42
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    Qty in Cart: 0
    Price:
    MSRP $258.65
    Surplus $39.42
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  • Siemens B3100 Miniature Circuit Breakers (MCBs) B 3P 100A 240V Siemens B3100 Miniature Circuit Breakers (MCBs) B 3P 100A 240V
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    Siemens B3100 Miniature Circuit Breakers (MCBs) B 3P 100A 240V

    MSRP $980.14
    Surplus $130.81
    SKU:  C15-2266 Brand:  Siemens MPN:  B3100 UPC:   Shipping Weight:  0.85 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  3.00 In. Product...
    SKU:
    C15-2266
    Type:
    Molded Case
    Type:
    Branch
    Type:
    Common Trip
    Type:
    Thermal Magnetic
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Volts:
    240 VAC
    Amps:
    32 A
    Used On:
    P1 Panelboard
    Poles:
    3
    Interrupting Rating:
    10 kA
    Application:
    Electrical Distribution
    Installation:
    Bolt-On
    Short Description:
    240 VAC, 100 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Branch, Common Trip, Thermal Magnetic
    Catalog:
    SiemensAG_00876_5_18_5_19_CAT.pdf
    Data Sheet:
    SiemensAG_01604_1_DATA.pdf
    Number of Poles:
    3
    Current Rating:
    100 A
    Voltage Rating:
    240 VAC
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $980.14
    Surplus $130.81
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    Qty in Cart: 0
    Price:
    MSRP $980.14
    Surplus $130.81
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  • Siemens B220H Miniature Circuit Breakers (MCBs) B 2P 20A 240V 50/60Hz 1Ph
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    Siemens B220H Miniature Circuit Breakers (MCBs) B 2P 20A 240V 50/60Hz 1Ph

    MSRP $524.10
    Surplus $60.99
    Siemens B220H Miniature Circuit Breakers (MCBs) B 2P 20A 240V 50/60Hz 1Ph​ ARCA SKU:  C15-2854 Brand:  Siemens MPN:  B220H UPC:  783643263901 Shipping Weight:  0.65 lbs. Shipping...
    SKU:
    C15-2854
    Type:
    Thermal and Fixed Magnetic
    Type:
    Branch
    Type:
    Common Trip
    Type:
    Molded Case
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Volts:
    120/240 VAC at 50/60 Hertz
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    2
    Interrupting Rating:
    22 kA at 120/240 VAC
    Application:
    Lighting
    Application:
    Distribution
    Installation:
    Bolt-On
    Short Description:
    120/240 VAC, 20 A, 22 kA, 2-Pole, Bolt-On Mount, Molded Case, Common Trip, Branch
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Data Sheet:
    SiemensAG_05194_1_DATA.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    TS PIK:
    21368413
    Voltage Rating:
    120/240 VAC
    Current Rating:
    20 A
    Number of Poles:
    2
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $524.10
    Surplus $60.99
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    Qty in Cart: 0
    Price:
    MSRP $524.10
    Surplus $60.99
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  • Siemens B120HH Miniature Circuit Breakers (MCBs) 20A
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    Siemens B120HH Miniature Circuit Breakers (MCBs) 20A

    MSRP $387.97
    Surplus $62.97
    Siemens B120HH Miniature Circuit Breakers (MCBs) 20A​ ARCA SKU:  C15-1456 Brand:  Siemens MPN:  B120HH UPC:  78364326409 Shipping Weight:  0.30 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-1456
    Type:
    Molded Case
    Type:
    Thermal and Fixed Magnetic
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Volts:
    120 VAC at 50/60 Hz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    1
    Interrupting Rating:
    65 kA at 120 VAC (UL)
    Application:
    Lighting
    Application:
    Distribution
    Installation:
    Bolt-On
    Short Description:
    120 VAC, 20 A, 65 kA, 1-Pole, Bolt-On Mount, Molded Case, Thermal Magnetic
    Catalog:
    SiemensAG_00876_5_18_5_19_CAT.pdf
    Data Sheet:
    SiemensAG_01598_1_DATA.pdf
    TS PIK:
    21368427
    Current Rating:
    20 A
    Voltage Rating:
    120 VAC
    Number of Poles:
    1
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $387.97
    Surplus $62.97
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    Qty in Cart: 0
    Price:
    MSRP $387.97
    Surplus $62.97
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    Siemens B320H Miniature Circuit Breakers (MCBs) B 3P 20A 240V 50/60Hz 3Ph Siemens B320H Miniature Circuit Breakers (MCBs) B 3P 20A 240V 50/60Hz 3Ph
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    Siemens B320H Miniature Circuit Breakers (MCBs) B 3P 20A 240V 50/60Hz 3Ph

    MSRP $358.02
    Surplus $217.26
    Siemens B320H Miniature Circuit Breakers (MCBs) B 3P 20A 240V 50/60Hz 3Ph​ ARCA SKU:  C15-1455 Brand:  Siemens MPN:  B320H UPC:  783643263994 Shipping Weight:  1.05 lbs. Shipping...
    SKU:
    C15-1455
    Type:
    Molded Case
    Type:
    Thermal and Fixed Magnetic
    Type:
    Branch
    Type:
    Common Trip
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Volts:
    240 VAC at 50/60 Hertz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    3
    Interrupting Rating:
    22 kA at 240 VAC (UL)
    Application:
    Lighting
    Application:
    Distribution
    Installation:
    Bolt-On
    Short Description:
    240 VAC, 20 A, 22 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Branch
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Data Sheet:
    SiemensAG_05240_1_DATA.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    TS PIK:
    21368420
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Current Rating:
    20 A
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $358.02
    Surplus $217.26
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    Qty in Cart: 0
    Price:
    MSRP $358.02
    Surplus $217.26
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  • Contact Us For Quote
    Siemens B325 Miniature Circuit Breakers (MCBs) B 3P 25A 240V 50/60Hz 3Ph Siemens B325 Miniature Circuit Breakers (MCBs) B 3P 25A 240V 50/60Hz 3Ph
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    Siemens B325 Miniature Circuit Breakers (MCBs) B 3P 25A 240V 50/60Hz 3Ph

    MSRP $805.89
    Surplus $167.71
    Siemens B325 Miniature Circuit Breakers (MCBs) B 3P 25A 240V 50/60Hz 3Ph​ ARCA SKU:  C15-2726 Brand:  Siemens MPN:  B325 UPC:  783643263703 Shipping Weight:  0.95 Shipping Height:  4.00 In...
    SKU:
    C15-2726
    Type:
    Molded Case
    Type:
    Thermal and Fixed Magnetic
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Volts:
    240 VAC at 50/60 Hz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    3
    Interrupting Rating:
    10 kA at 240 VAC (UL)
    Application:
    Lighting
    Application:
    Distribution
    Installation:
    Bolt-On
    Short Description:
    240 VAC, 25 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Data Sheet:
    SiemensAG_05244_1_DATA.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Current Rating:
    25 A
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $805.89
    Surplus $167.71
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    Qty in Cart: 0
    Price:
    MSRP $805.89
    Surplus $167.71
    Contact Us For Quote
  • Siemens B340 Miniature Circuit Breakers (MCBs) B 3P 40A 240V EA Siemens B340 Miniature Circuit Breakers (MCBs) B 3P 40A 240V EA
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    Siemens B340 Miniature Circuit Breakers (MCBs) B 3P 40A 240V EA

    MSRP $886.21
    Surplus $132.51
    Siemens B340 Miniature Circuit Breakers (MCBs) B 3P 40A 240V EA​ ARCA SKU:  C15-2265 Brand:  Siemens MPN:  B340 UPC:  783643263734 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-2265
    Type:
    Molded Case
    Type:
    Branch
    Type:
    BL
    Approval:
    UL 489
    Volts:
    240 VAC
    Amps:
    32 A
    Poles:
    3
    Interrupting Rating:
    10 kA
    Application:
    Electrical Distribution
    Installation:
    Bolt-On
    Short Description:
    240 VAC, 40 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Branch, Common Trip
    Catalog:
    SiemensAG_00876_5_18_5_19_CAT.pdf
    TS PIK:
    21368401
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Current Rating:
    40 A
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $886.21
    Surplus $132.51
    See Availability Quick view
    Qty in Cart: 0
    Price:
    MSRP $886.21
    Surplus $132.51
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  • Siemens B345 Miniature Circuit Breakers (MCBs) B 3P 45A 240V 50/60Hz 3Ph Siemens B345 Miniature Circuit Breakers (MCBs) B 3P 45A 240V 50/60Hz 3Ph
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    Siemens B345 Miniature Circuit Breakers (MCBs) B 3P 45A 240V 50/60Hz 3Ph

    MSRP $707.88
    Surplus $86.42
    Siemens B345 Miniature Circuit Breakers (MCBs) B 3P 45A 240V 50/60Hz 3Ph​ ARCA SKU:  C15-2568 Brand:  Siemens MPN:  B345 UPC:  783643263741 Shipping Weight:  0.95 lbs. Shipping Height:  3...
    SKU:
    C15-2568
    Type:
    Electronic
    Type:
    Thermal
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Volts:
    240 VAC at 50/60 Hertz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    3
    Interrupting Rating:
    10 kA at 240 VAC (UL)
    Enclosure:
    IP20
    Application:
    Lighting
    Application:
    Distribution
    Installation:
    Bolt-On
    Short Description:
    240 VAC, 45 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Data Sheet:
    Eaton_41036_1-6_DATA.pdf
    Number of Poles:
    3
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Voltage Rating:
    240 VAC
    Current Rating:
    45 A
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $707.88
    Surplus $86.42
    See Availability Quick view
    Qty in Cart: 0
    Price:
    MSRP $707.88
    Surplus $86.42
    See Availability

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Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.