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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  • Eaton QBHW3045H Molded Case Breakers (MCCBs) 3P 45A 240V EA Eaton QBHW3045H Molded Case Breakers (MCCBs) 3P 45A 240V EA
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    Eaton QBHW3045H Molded Case Breakers (MCCBs) 3P 45A 240V EA

    MSRP $733.92
    Surplus $137.91
    SKU:  C15-4091 Brand:  Eaton MPN:  QBHW3045H UPC:  78667939342 Shipping Weight:  1.10 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-4091
    Series:
    QBHW
    Type:
    Thermal Magnetic
    Approval:
    UL 489
    Approval:
    CSA
    Volts:
    240 VAC
    Amps:
    32 A
    Poles:
    3
    Mounting:
    Bolt-On
    Interrupting Rating:
    22000 A at 240 VAC
    Terminal Type:
    Extended Tang Line Terminal
    Terminal Type:
    Box Lug Load Terminal
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Short Description:
    240 VAC, 45 A, 22 kA, 3-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
    Catalog:
    Eaton_03771_V4T1_12_CAT.pdf
    TS PIK:
    107002728
    Voltage Rating:
    240 VAC
    Current Rating:
    45 A
    Number of Poles:
    3
    MSRP $733.92
    Surplus $137.91
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    Qty in Cart: 0
    Price:
    MSRP $733.92
    Surplus $137.91
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  • Eaton BAB1045 Miniature Circuit Breakers (MCBs) BA 1P 45A 120/240V 50/60Hz 1Ph
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    Eaton BAB1045 Miniature Circuit Breakers (MCBs) BA 1P 45A 120/240V 50/60Hz 1Ph

    MSRP $62.50
    Surplus $20.16
    Eaton BAB1045 Miniature Circuit Breakers (MCBs) BA 1P 45A 120/240V 50/60Hz 1Ph​ ARCA SKU:  C15-1027 Brand:  Eaton MPN:  BAB1045 UPC:  786679152393 Shipping Weight:  0.35 lbs. Shipping...
    SKU:
    C15-1027
    Terminal Type:
    Steel Box Lug Standard Load
    Number of Poles:
    1
    Wire Size:
    14 to 4 AWG Copper/Aluminum (Standard Load)
    Interrupting Rating:
    10000 A at 120/240 VAC, 5000 A at 24 to 48 VDC
    Catalog:
    Eaton_03771_V4T1_3-V4T1_46_CAT.pdf
    Current Rating:
    45 A
    Size:
    1.2 Inch Width x 3.6 Inch Depth x 4.8 Inch Height
    Mounting:
    Bolt-On
    Type:
    Thermal Magnetic, Non-Interchangeable Trip, Miniature
    Short Description:
    EATON BAB THERMAL MAGNETIC CIRCUIT BREAKER,QUICKLAG INDUSTRIAL THERMAL-MAGNETIC
    Voltage Rating:
    120/240 VAC, 24/48/62.5 VDC
    Country of Origin:
    Dominican Republic
    MSRP $62.50
    Surplus $20.16
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    Qty in Cart: 0
    Price:
    MSRP $62.50
    Surplus $20.16
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  • Eaton QBHW2045 Miniature Circuit Breakers (MCBs) 2P 45A Eaton QBHW2045 Miniature Circuit Breakers (MCBs) 2P 45A
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    Eaton QBHW2045 Miniature Circuit Breakers (MCBs) 2P 45A

    MSRP $306.81
    Surplus $61.03
    Eaton QBHW2045 Miniature Circuit Breakers (MCBs) 2P 45A​ ARCA SKU:  C15-4176 Brand:  Eaton MPN:  QBHW2045 UPC:  78667915247 Shipping Weight:  0.70 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-4176
    Series:
    QBHW
    Type:
    Thermal Magnetic
    Approval:
    UL 489
    Approval:
    CSA
    Volts:
    120/240 VAC
    Amps:
    32 A
    Poles:
    2
    Mounting:
    Bolt-On
    Interrupting Rating:
    22000 A at 120/240 VAC
    Interrupting Rating:
    5000 A at 24 to 48/62.5/80 VDC
    Terminal Type:
    Extended Tang Line Terminal
    Terminal Type:
    Box Lug Load Terminal
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Short Description:
    120/240 VAC, 45 A, 22 kA, 2-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
    Catalog:
    Eaton_03771_V4T1_12_CAT.pdf
    TS PIK:
    122441242
    Number of Poles:
    2
    Current Rating:
    45 A
    Voltage Rating:
    120/240 VAC
    Country of Origin:
    Dominican Republic
    MSRP $306.81
    Surplus $61.03
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    Qty in Cart: 0
    Price:
    MSRP $306.81
    Surplus $61.03
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  • Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V 0Ph EA Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V 0Ph EA
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    Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V 0Ph EA

    MSRP $141.00
    Surplus $43.29
    Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V 0Ph EA​ ARCA SKU:  C15-5596 Brand:  Eaton MPN:  BAB2045 UPC:  786679302446 Shipping Weight:  0.60 lbs. Shipping Height:  4.00 In...
    SKU:
    C15-5596
    Series:
    BAB
    Terminal Type:
    Extended Tang Line Terminal, Box Lug Load Terminal
    Interrupting Rating:
    10 kA
    Type:
    Thermal Magnetic
    Mounting:
    Bolt-On
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    2
    Short Description:
    120/240 VAC, 45 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Wire Size:
    14 to 4 AWG Load (Copper/Aluminum)
    Catalog:
    Eaton_03771_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
    Current Rating:
    45 A
    Country of Origin:
    Dominican Republic
    MSRP $141.00
    Surplus $43.29
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    Qty in Cart: 0
    Price:
    MSRP $141.00
    Surplus $43.29
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  • Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V EA Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V EA
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    Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V EA

    MSRP $155.60
    Surplus $32.46
    Eaton BAB2045 Miniature Circuit Breakers (MCBs) 2P 45A 240V EA​ ARCA SKU:  C15-1057 Brand:  Eaton MPN:  BAB2045 UPC:  786679302446 Shipping Weight:  0.60 lbs. Shipping Height:  2.00 In...
    SKU:
    C15-1057
    Series:
    BAB
    Type:
    Thermal Magnetic
    Approval:
    UL
    Approval:
    CSA
    Volts:
    120/240 VAC
    Amps:
    32 A
    Poles:
    2
    Mounting:
    Bolt-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Extended Tang Line Terminal
    Terminal Type:
    Box Lug Load Terminal
    Wire Size:
    14 to 4 AWG Load (Copper/Aluminum)
    Short Description:
    120/240 VAC, 45 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
    Catalog:
    Eaton_03771_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
    Voltage Rating:
    120/240 VAC
    Current Rating:
    45 A
    Number of Poles:
    2
    Country of Origin:
    Dominican Republic
    MSRP $155.60
    Surplus $32.46
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    Qty in Cart: 0
    Price:
    MSRP $155.60
    Surplus $32.46
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  • Eaton BAB3045H Miniature Circuit Breakers (MCBs) BA 3P 45A 120/240V 50/60Hz 3Ph EA Eaton BAB3045H Miniature Circuit Breakers (MCBs) BA 3P 45A 120/240V 50/60Hz 3Ph EA
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    Eaton BAB3045H Miniature Circuit Breakers (MCBs) BA 3P 45A 120/240V 50/60Hz 3Ph EA

    MSRP $405.00
    Surplus $92.68
    SKU:  C15-1097 Brand:  Eaton MPN:  BAB3045H UPC:  786679303450 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-1097
    TS PIK:
    21508711
    Series:
    BAB
    Short Description:
    240 VAC, 45 A, 10 kA, 3-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Type:
    Thermal Magnetic
    Voltage Rating:
    240 VAC
    Mounting:
    Bolt-On
    Catalog:
    Eaton_03771_V4T1_3_V4T1_11_V4T1_12_CAT.pdf
    Terminal Type:
    Extended Tang Line Terminal, Box Lug Load Terminal
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Interrupting Rating:
    10000 A at 240 VAC
    Number of Poles:
    3
    Current Rating:
    45 A
    Country of Origin:
    Dominican Republic
    MSRP $405.00
    Surplus $92.68
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    Qty in Cart: 0
    Price:
    MSRP $405.00
    Surplus $92.68
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  • Contact Us For Quote
    Eaton BAB3045HS Miniature Circuit Breakers (MCBs) BAB 3P 45A 240V 50/60Hz 3Ph Eaton BAB3045HS Miniature Circuit Breakers (MCBs) BAB 3P 45A 240V 50/60Hz 3Ph
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    Eaton BAB3045HS Miniature Circuit Breakers (MCBs) BAB 3P 45A 240V 50/60Hz 3Ph

    MSRP $900.00
    Surplus $328.24
    SKU:  C15-3367 Brand:  Eaton MPN:  BAB3045HS UPC:  786679378168 Shipping Weight:  1.25 lbs. Shipping Height:  4.00 In. Shipping Length:  4.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-3367
    Approval:
    UL 489
    Approval:
    CSA
    Amps:
    45 A
    Interrupting Rating:
    10000 A at 240 VAC
    Mounting:
    Bolt-On
    Poles:
    3
    Size:
    3.2 Inch Width x 3.8 Inch Depth x 4.9 Inch Height
    Terminal Type:
    Steel Box Lug Standard Load
    Type:
    Thermal Magnetic
    Type:
    Non-Interchangeable Trip
    Type:
    Miniature
    Volts:
    240 VAC
    Gauge:
    14 to 4 AWG Copper/Aluminum (Standard Load)
    Voltage Rating:
    240 VAC
    Current Rating:
    45 A
    Wire Size:
    14 to 4 AWG Copper/Aluminum (Standard Load)
    Catalog:
    Eaton_03771_V4T1_3-V4T1_46_CAT.pdf
    Number of Poles:
    3
    Short Description:
    EATON BAB THERMAL MAGNETIC CIRCUIT BREAKER,QUICKLAG INDUSTRIAL THERMAL-MAGNETIC
    MSRP $900.00
    Surplus $328.24
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    Qty in Cart: 0
    Price:
    MSRP $900.00
    Surplus $328.24
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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 $520.00
    Surplus $63.48
    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 $520.00
    Surplus $63.48
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    Qty in Cart: 0
    Price:
    MSRP $520.00
    Surplus $63.48
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  • Siemens B345HH Miniature Circuit Breakers (MCBs) Siemens B345HH Miniature Circuit Breakers (MCBs)
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    Siemens B345HH Miniature Circuit Breakers (MCBs)

    MSRP $1,443.00
    Surplus $192.51
    SKU:  C15-7398 Brand:  Siemens MPN:  B345HH UPC:  78364330636 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  3.00 In...
    SKU:
    C15-7398
    TS PIK:
    106248797
    Short Description:
    240 VAC, 45 A, 65 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
    Number of Poles:
    3
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Type:
    Branch
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Data Sheet:
    SiemensAG_05263_1_DATA.pdf
    Voltage Rating:
    240 VAC at 50/60 Hz
    Interrupting Rating:
    65 kA
    Used On:
    P1/P2/P3/P4/P5 Series Panelboard
    Current Rating:
    45 A
    Mounting:
    Bolt-On
    Country of Origin:
    Mexico
    MSRP $1,443.00
    Surplus $192.51
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    Qty in Cart: 0
    Price:
    MSRP $1,443.00
    Surplus $192.51
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  • Siemens BQ2B045 Miniature Circuit Breakers (MCBs) 2P 45A 120V
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    Siemens BQ2B045 Miniature Circuit Breakers (MCBs) 2P 45A 120V

    MSRP $192.50
    Surplus $55.24
    Siemens BQ2B045 Miniature Circuit Breakers (MCBs) 2P 45A 120V​ ARCA SKU:  C15-6254 Brand:  Siemens MPN:  BQ2B045 UPC:  78364316121 Shipping Weight:  0.70 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-6254
    TS PIK:
    126638515
    Short Description:
    120/240 VAC, 45 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
    Current Rating:
    45 A
    Size:
    2 Inch W x 3 Inch D x 3-3/4 Inch H
    Catalog:
    SiemensAG_01698_17_1_17_7_CAT.pdf
    Series:
    BQ
    Number of Poles:
    2
    Voltage Rating:
    120/240 VAC at 50/60 Hz (UL)
    Interrupting Rating:
    10 kA at 120/240 VAC
    Terminal Type:
    P1/P2/P3/P4/P5 Panelboard
    Data Sheet:
    SiemensAG_05372_1_DATA.pdf
    Mounting:
    Bolt-On
    Country of Origin:
    Mexico
    MSRP $192.50
    Surplus $55.24
    See Availability Quick view
    Qty in Cart: 0
    Price:
    MSRP $192.50
    Surplus $55.24
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  • Siemens BQ3B045 Miniature Circuit Breakers (MCBs) 3P 45A 240V EA
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    Siemens BQ3B045 Miniature Circuit Breakers (MCBs) 3P 45A 240V EA

    MSRP $614.00
    Surplus $67.72
    Siemens BQ3B045 Miniature Circuit Breakers (MCBs) 3P 45A 240V EA​ ARCA SKU:  C15-6256 Brand:  Siemens MPN:  BQ3B045 UPC:   Shipping Weight:  1.00 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-6256
    TS PIK:
    124364579
    Short Description:
    240 VAC, 45 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
    Series:
    BQ
    Terminal Type:
    Load Lug
    Number of Poles:
    3
    Current Rating:
    45 A
    Interrupting Rating:
    10 kA at 240 VAC Symmetrical (UL)
    Size:
    3 Inch W x 3 Inch D x 3-3/4 Inch H
    Data Sheet:
    SiemensAG_05396_1_DATA.pdf
    Catalog:
    SiemensAG_01698_17_1_17_7_CAT.pdf
    Wire Size:
    8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Type:
    Molded Case, Thermal and Fixed Magnetic, Common Trip
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Mounting:
    Bolt-On
    Country of Origin:
    Mexico
    MSRP $614.00
    Surplus $67.72
    See Availability Quick view
    Qty in Cart: 0
    Price:
    MSRP $614.00
    Surplus $67.72
    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.