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 BAB3050H Miniature Circuit Breakers (MCBs) 3P 50A 240V EA Eaton BAB3050H Miniature Circuit Breakers (MCBs) 3P 50A 240V EA
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    Eaton BAB3050H Miniature Circuit Breakers (MCBs) 3P 50A 240V EA

    MSRP $462.43
    Surplus $84.00
    SKU:  C15-1098 Brand:  Eaton MPN:  BAB3050H UPC:  786679303504 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-1098
    Series:
    BAB
    Type:
    Thermal Magnetic
    Type:
    Interchangeable Trip
    Type:
    Miniature
    Approval:
    UL 489
    Approval:
    CSA
    Size:
    3.2 Inch Width x 3.8 Inch Depth x 4.9 Inch Height
    Volts:
    240 VAC
    Amps:
    32 A
    Used On:
    Distribution Panel
    Poles:
    3
    Mounting:
    Bolt-On
    Interrupting Rating:
    10000 A at 240 VAC
    Terminal Type:
    Steel Box Lug Standard Load
    Wire Size:
    14 to 4 AWG Copper/Aluminum (Standard Load)
    Short Description:
    240 VAC, 50 A, 10 kA, 3-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
    Catalog:
    Eaton_03771_V4T1_3_V4T1_11_V4T1_12_CAT.pdf
    TS PIK:
    21508712
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Current Rating:
    50 A
    Country of Origin:
    Dominican Republic
    MSRP $462.43
    Surplus $84.00
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    Qty in Cart: 0
    Price:
    MSRP $462.43
    Surplus $84.00
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  • Siemens B350 Miniature Circuit Breakers (MCBs) Siemens B350 Miniature Circuit Breakers (MCBs)
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    Siemens B350 Miniature Circuit Breakers (MCBs)

    MSRP $622.00
    Surplus $81.20
    SKU:  C15-6230 Brand:  Siemens MPN:  B350 UPC:  78364326375 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  3.00 In...
    SKU:
    C15-6230
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Short Description:
    240 VAC, 50 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
    Type:
    Molded Case, Thermal and Fixed Magnetic, Branch, Common Trip
    Current Rating:
    50 A
    Voltage Rating:
    240 VAC
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Data Sheet:
    SiemensAG_05264_1_DATA.pdf
    Interrupting Rating:
    10 kA at 240 VAC (UL)
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Number of Poles:
    3
    Mounting:
    Bolt-On
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    Installation:
    Bolt-On
    Application:
    Lighting, Distribution
    MSRP $622.00
    Surplus $81.20
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    Qty in Cart: 0
    Price:
    MSRP $622.00
    Surplus $81.20
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    Siemens BQ3B050 Miniature Circuit Breakers (MCBs) EA
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    Siemens BQ3B050 Miniature Circuit Breakers (MCBs) EA

    MSRP $614.00
    Surplus $164.92
    Siemens BQ3B050 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU:  C15-6144 Brand:  Siemens MPN:  BQ3B050 UPC:  78364310262 Shipping Weight:  1.00 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-6144
    TS PIK:
    21366198
    Mounting:
    Bolt-On
    Voltage Rating:
    240 VAC at 50/60 Hz (UL)
    Short Description:
    240 VAC, 50 A, 10 kA Interrupt, 3-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
    Current Rating:
    50 A
    Series:
    BQ
    Number of Poles:
    3
    Type:
    Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
    Catalog:
    SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
    Terminal Type:
    Load Lug
    Wire Size:
    8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Interrupting Rating:
    10 kA at 240 VAC Symmetrical (UL)
    Size:
    3 Inch W x 3 Inch D x 3-3/4 Inch H
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    MSRP $614.00
    Surplus $164.92
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    Qty in Cart: 0
    Price:
    MSRP $614.00
    Surplus $164.92
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  • GENERAL ELECTRIC THHQB32050 Miniature Circuit Breakers (MCBs) EA GENERAL ELECTRIC THHQB32050 Miniature Circuit Breakers (MCBs) EA
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    GENERAL ELECTRIC THHQB32050 Miniature Circuit Breakers (MCBs) EA

    MSRP $602.88
    Surplus $172.90
    SKU:  C15-5900 Brand:  GENERAL ELECTRIC MPN:  THHQB32050 UPC:  78316411862 Shipping Weight:  1.15 lbs. Shipping Height:  3.35 In. Shipping Length:  3.50 In. Shipping...
    SKU:
    C15-5900
    Type:
    Thermal Magnetic, Compact
    CAD Drawings:
    ABBElectrificationProducts-ABBGEIndustrialSolutions_01786_1_CAD.pdf
    Catalog:
    ABBElectrificationProducts-ABBGEIndustrialSolutions_00542_6_4_6_5_6_8_6_38_CAT.pdf
    Current Rating:
    50 A
    Number of Poles:
    3
    Installation/Operator:
    ABBElectrificationProducts-ABBGEIndustrialSolutions_00025_INST.pdf
    Short Description:
    120/240 VAC, 50 A, 22 kA Interrupt, 3-Pole, 8 to 3 AWG Aluminum/Copper Load Lug Terminal, 1" Bolt-On Mount, Q-Line Frame, Non-Interchangeable/Internal Common Trip, Compact, Fixed Thermal Magnetic, Miniature Molded Case Circuit Breaker
    Terminal Type:
    Bolt-On
    Interrupting Rating:
    22 kA at 120/240 VAC
    Voltage Rating:
    120/240 VAC
    Mounting:
    Bolt-On
    Maximum AC Voltage Rating:
    240 V
    Frame Type:
    Q-Line
    Approval:
    UL
    MSRP $602.88
    Surplus $172.90
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    Qty in Cart: 0
    Price:
    MSRP $602.88
    Surplus $172.90
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    Eaton EGE3050FFB Molded Case Breakers (MCCBs) EA Eaton EGE3050FFB Molded Case Breakers (MCCBs) EA
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    Eaton EGE3050FFB Molded Case Breakers (MCCBs) EA

    MSRP $919.29
    Surplus $415.48
    SKU:  C15-5243 Brand:  Eaton MPN:  EGE3050FFB UPC:  78668567594 Shipping Weight:  2.65 lbs. Shipping Height:  5.00 In. Shipping Length:  7.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-5243
    Approval:
    UL
    Approval:
    CSA
    Approval:
    CE
    Amps:
    50 A
    Interrupting Rating:
    18 kA at 600 Star/347 V AC
    Interrupting Rating:
    25 Kiloamp at 415 Volt AC
    Interrupting Rating:
    25 Kiloamp at 480 Volt AC
    Interrupting Rating:
    35 Kiloamp at 240 Volt AC
    Mounting:
    Bolt-On
    Poles:
    3
    Size:
    3 Inch Width x 2.99 Inch Depth x 5.5 Inch Height
    Terminal Type:
    Molded Case
    Type:
    Fixed Thermal Magnetic
    Used On:
    0
    Volts:
    600 Star/347 VAC at 50/60 Hertz
    Volts:
    240/415/480 VAC at 50/60 Hertz
    Gauge:
    0
    Short Description:
    347/600 VAC 50/60 Hz 3-Phase, 50 A, 3-Pole, 18 kA, Bolt-On Mount, Fixed Thermal Magnetic, Molded Case Circuit Breaker
    Series:
    G, EGE
    Current Rating:
    50 A
    Number of Poles:
    3
    Voltage Rating:
    600 Star/347 V AC, 240/415/480 V AC at 50/60 Hertz
    Catalog:
    Eaton_36690_4_14_4_15_CAT.pdf
    Installation/Operator:
    Eaton_00042_INST.pdf
    MSRP $919.29
    Surplus $415.48
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    Qty in Cart: 0
    Price:
    MSRP $919.29
    Surplus $415.48
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  • Eaton QBHW3050H Miniature Circuit Breakers (MCBs) QBHW 3P 50A 240V 50/60Hz 3Ph EA Eaton QBHW3050H Miniature Circuit Breakers (MCBs) QBHW 3P 50A 240V 50/60Hz 3Ph EA
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    Eaton QBHW3050H Miniature Circuit Breakers (MCBs) QBHW 3P 50A 240V 50/60Hz 3Ph EA

    MSRP $689.77
    Surplus $117.14
    Eaton QBHW3050H Miniature Circuit Breakers (MCBs) QBHW 3P 50A 240V 50/60Hz 3Ph EA​ ARCA SKU:  C15-3464 Brand:  Eaton MPN:  QBHW3050H UPC:  786679393451 Shipping Weight:  1.10 lbs. Shipping...
    SKU:
    C15-3464
    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, 50 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:
    21510611
    Current Rating:
    50 A
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Country of Origin:
    Dominican Republic
    MSRP $689.77
    Surplus $117.14
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    Qty in Cart: 0
    Price:
    MSRP $689.77
    Surplus $117.14
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  • Cutler Hammer CHB350 Miniature Circuit Breakers (MCBs) CHB 3P 50A 120/240V 50/60Hz 3Ph EA
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    Cutler Hammer CHB350 Miniature Circuit Breakers (MCBs) CHB 3P 50A 120/240V 50/60Hz 3Ph EA

    MSRP $592.00
    Surplus $638.40
    Cutler Hammer CHB350 Miniature Circuit Breakers (MCBs) CHB 3P 50A 120/240V 50/60Hz 3Ph EA​ ARCA SKU:  C15-3521 Brand:  Cutler Hammer MPN:  CHB350 UPC:  621037068339 Shipping Weight:  1.00 Shipping...
    SKU:
    C15-3521
    Series:
    CHB
    Type:
    Molded Case
    Volts:
    240 V
    Amps:
    32 A
    Used On:
    Type PB Panelboard
    Poles:
    3
    Mounting:
    Bolt-On
    Short Description:
    240 V, 50 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case
    Installation/Operator:
    Eaton_00008_INST.pdf
    Manufacturer Warranty:
    Eaton_00009_WARR.pdf
    Interrupting Rating:
    10 kA at 240 VAC
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Current Rating:
    50 A
    Wire Size:
    8 to 4 AWG
    Catalog:
    Eaton_03653_V12T3_9_CAT.pdf
    Approval:
    UL 489
    Country of Origin:
    United States
    MSRP $592.00
    Surplus $638.40
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    Qty in Cart: 0
    Price:
    MSRP $592.00
    Surplus $638.40
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    Crouse-Hinds QBHW3050H Miniature Circuit Breakers (MCBs)
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    Crouse-Hinds QBHW3050H Miniature Circuit Breakers (MCBs)

    MSRP $689.77
    Surplus $193.61
    SKU:  C15-5413 Brand:  Crouse-Hinds MPN:  QBHW3050H UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-5413
    TS PIK:
    21510611
    Type:
    Thermal Magnetic
    Series:
    QBHW
    Number of Poles:
    3
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Interrupting Rating:
    22000 A at 240 VAC
    Catalog:
    Eaton_03771_V4T1_12_CAT.pdf
    Current Rating:
    50 A
    Mounting:
    Bolt-On
    Terminal Type:
    Extended Tang Line Terminal, Box Lug Load Terminal
    Short Description:
    240 VAC, 50 A, 22 kA, 3-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Voltage Rating:
    240 VAC
    Approval:
    UL 489, CSA
    MSRP $689.77
    Surplus $193.61
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    Qty in Cart: 0
    Price:
    MSRP $689.77
    Surplus $193.61
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  • Eaton BAB3050HS Miniature Circuit Breakers (MCBs) BA 3P 50A 120/240V 50/60Hz 3Ph Eaton BAB3050HS Miniature Circuit Breakers (MCBs) BA 3P 50A 120/240V 50/60Hz 3Ph
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    Eaton BAB3050HS Miniature Circuit Breakers (MCBs) BA 3P 50A 120/240V 50/60Hz 3Ph

    MSRP $735.00
    Surplus $371.77
    SKU:  C15-1099 Brand:  Eaton MPN:  BAB3050HS UPC:  786679509678 Shipping Weight:  1.30 lbs. Shipping Height:  3.50 In. Shipping Length:  3.60 In. Shipping Width:  4.00 In...
    SKU:
    C15-1099
    TS PIK:
    107004137
    Current Rating:
    50 A
    Type:
    Thermal Magnetic
    Number of Poles:
    3
    Series:
    BAB
    Terminal Type:
    Extended Tang Line Terminal, Box Lug Load Terminal
    Catalog:
    Eaton_03771_V4T1_11_V4T1_12_V4T1_45_CAT.pdf
    Mounting:
    Bolt-On
    Short Description:
    240 VAC, 50 A, 10 kA, 3-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Shunt Trip, Thermal Magnetic, Miniature, Circuit Breaker
    Interrupting Rating:
    10000 A at 240 VAC
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Voltage Rating:
    240 VAC
    Country of Origin:
    Dominican Republic
    Approval:
    UL 489, CSA
    MSRP $735.00
    Surplus $371.77
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    Qty in Cart: 0
    Price:
    MSRP $735.00
    Surplus $371.77
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  • Siemens B350H Miniature Circuit Breakers (MCBs) 3P 50A
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    Siemens B350H Miniature Circuit Breakers (MCBs) 3P 50A

    MSRP $944.00
    Surplus $141.71
    Siemens B350H Miniature Circuit Breakers (MCBs) 3P 50A​ ARCA SKU:  C15-6205 Brand:  Siemens MPN:  B350H UPC:  78364326402 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-6205
    TS PIK:
    115555115
    Short Description:
    240 VAC, 50 A, 22 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
    Interrupting Rating:
    22 kA at 240 VAC
    Current Rating:
    50 A
    Type:
    Molded Case
    Voltage Rating:
    240 VAC
    Series:
    BLH
    Number of Poles:
    3
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Data Sheet:
    SiemensAG_05266_1_DATA.pdf
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Mounting:
    Bolt-On
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    MSRP $944.00
    Surplus $141.71
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    Qty in Cart: 0
    Price:
    MSRP $944.00
    Surplus $141.71
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  • Square D EGB34050 Miniature Circuit Breakers (MCBs) 480/277V
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    Square D EGB34050 Miniature Circuit Breakers (MCBs) 480/277V

    MSRP $916.11
    Surplus $382.70
    SKU:  C15-6363 Brand:  Square D MPN:  EGB34050 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-6363
    TS PIK:
    120251318
    Number of Poles:
    3
    Short Description:
    480 Star/277 VAC, 50 A, 35 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
    Interrupting Rating:
    35 kA at 480 Star/277 VAC
    Catalog:
    SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01117_INST.pdf
    Voltage Rating:
    480 Star/277 VAC
    Data Sheet:
    SchneiderElectric-SquareD_45682_1_2_DATA.pdf
    Current Rating:
    50 A
    Series:
    EGB
    Type:
    Thermal Magnetic, Branch, Miniature
    Used On:
    NF Merchandised Panelboard
    Mounting:
    Bolt-On
    Approval:
    UL (Canada and US)
    Application:
    Lighting
    Installation:
    Bolt-On
    Trip Setting:
    630 A (Hold), 1800 A (Trip)
    Country of Origin:
    Mexico
    MSRP $916.11
    Surplus $382.70
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    Qty in Cart: 0
    Price:
    MSRP $916.11
    Surplus $382.70
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  • Square D QOB350GFI Miniature Circuit Breakers (MCBs) EA
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    Square D QOB350GFI Miniature Circuit Breakers (MCBs) EA

    MSRP $836.00
    Surplus $957.60
    SKU:  C15-10919 Brand:  Square D MPN:  QOB350GFI UPC:  78590169018 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10919
    TS PIK:
    124273845
    Short Description:
    208 VAC Star/120 VAC, 50 A, 10 kA Interrupt, 3-Pole, Bolt-On Mount, 3-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
    Series:
    QOB
    Prop 65 Warning:
    Yes
    Data Sheet:
    SchneiderElectric-SquareD_15232_1_2_DATA.pdf
    Type:
    Miniature, Thermal Magnetic
    Number of Poles:
    3
    Terminal Type:
    Box Lug
    Catalog:
    SchneiderElectric-SquareD_03283_9_14_CAT.pdf
    Current Rating:
    50 A
    Voltage Rating:
    208 VAC Star/120 VAC at 50/60 Hz
    Mounting:
    Bolt-On
    Wire Size:
    12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
    Installation/Operator:
    SchneiderElectric-SquareD_00894_INST.pdf
    Used On:
    NQ Panelboard/Interior
    Interrupting Rating:
    10 kA
    Size:
    2.25 Inch W x 2.91 Inch D x 4.12 Inch H
    Approval:
    UL, CSA
    Trip Sensitivity:
    6 MilliA
    Country of Origin:
    Mexico
    MSRP $836.00
    Surplus $957.60
    See Availability Quick view
    Qty in Cart: 0
    Price:
    MSRP $836.00
    Surplus $957.60
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