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Miniature Circuit Breakers (MCBs)

Miniature Circuit Breakers (MCBs)

Miniature Circuit Breakers (MCBs)

A miniature circuit breaker (MCB) is a type of electrical breaker that is designed to protect electrical circuits from damage due to overloading, short-circuiting, or other electrical faults. MCBs are commonly used in residential and light commercial electrical systems, and are typically smaller in size than traditional circuit breakers.

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  • Square D QO120 Miniature Circuit Breakers (MCBs) 20A 120V EA Square D QO120 Miniature Circuit Breakers (MCBs) 20A 120V EA

    Square D QO120 Miniature Circuit Breakers (MCBs) 20A 120V EA

    MSRP $29.10
    Surplus $9.52
    Square D QO120 Miniature Circuit Breakers (MCBs) 20A 120V EA​ ARCA SKU:  C15-2195 Brand:  Square D MPN:  QO120 UPC:  0047569837999 Shipping Weight:  0.30 lbs. Shipping Height:  1.00 In...
    SKU:
    C15-2195
    Series:
    QO
    Type:
    Thermal Magnetic
    Type:
    Duplex
    Approval:
    UL
    Approval:
    CSA
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
    Volts:
    120/240 VAC 50/60 Hertz
    Volts:
    48 VDC
    Amps:
    32 A
    Used On:
    QO Load Center
    Used On:
    NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Poles:
    1
    Mounting:
    Plug-On
    Interrupting Rating:
    5/10 kA
    Terminal Type:
    Pressure Plate
    Wire Size:
    14 to 8 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 20 A, 5/10 kA Interrupt, 1-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    TS PIK:
    597373
    Number of Poles:
    1
    Data Sheet:
    SchneiderElectric-SquareD_53339_1_2_DATA.pdf
    Current Rating:
    20 A
    Voltage Rating:
    120/240 VAC
    Country of Origin:
    United States
    Installation/Operator:
    SchneiderElectric-SquareD_01207_INST.pdf
    MSRP $29.10
    Surplus $9.52
    Qty in Cart: 0
    Price:
    MSRP $29.10
    Surplus $9.52
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    Square D QO115 Miniature Circuit Breakers (MCBs) 15A 120V Square D QO115 Miniature Circuit Breakers (MCBs) 15A 120V

    Square D QO115 Miniature Circuit Breakers (MCBs) 15A 120V

    MSRP $29.10
    Surplus $8.75
    Square D QO115 Miniature Circuit Breakers (MCBs) 15A 120V​ ARCA SKU:  C15-1640 Brand:  Square D MPN:  QO115 UPC:  78590140006 Shipping Weight:  2.82 lbs. Shipping Height:  3.50 In...
    SKU:
    C15-1640
    Series:
    QO
    Type:
    Thermal Magnetic
    Type:
    Duplex
    Approval:
    UL
    Approval:
    CSA
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
    Volts:
    120/240 VAC 50/60 Hertz
    Volts:
    48 VDC
    Amps:
    32 A
    Used On:
    QO Load Center
    Used On:
    NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Poles:
    1
    Mounting:
    Plug-On
    Interrupting Rating:
    5/10 kA
    Terminal Type:
    Pressure Plate
    Wire Size:
    14 to 8 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 15 A, 5/10 kA Interrupt, 1-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    TS PIK:
    597371
    Country of Origin:
    United States
    Current Rating:
    15 A
    Voltage Rating:
    120/240 VAC 50/60 Hertz, 48 VDC
    Number of Poles:
    1
    Data Sheet:
    SchneiderElectric-SquareD_53323_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01207_INST.pdf
    MSRP $29.10
    Surplus $8.75
    Qty in Cart: 0
    Price:
    MSRP $29.10
    Surplus $8.75
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    Square D QO115AFI Miniature Circuit Breakers (MCBs)

    Square D QO115AFI Miniature Circuit Breakers (MCBs)

    MSRP $273.00
    Surplus $175.56
    Square D QO115AFI Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-4921 Brand:  Square D MPN:  QO115AFI UPC:  78590130129 Shipping Weight:  0.55 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-4921
    Series:
    QO-AFI
    Type:
    Thermal Magnetic
    Approval:
    UL
    Approval:
    CSA
    Volts:
    120 VAC
    Amps:
    32 A
    Used On:
    Load Center
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Pressure Plate
    Application:
    HACR
    Wire Size:
    14 to 8 AWG (Copper)
    Wire Size:
    12 to 8 AWG (Aluminum)
    Poles:
    1
    Short Description:
    120 VAC 50/60 Hz, 15 A, 10 kA Interrupt, 1-Pole, Plug-In Mount, 1-Panel Space, Pressure Plate Terminal, Arc Fault, Pigtail
    Data Sheet:
    SchneiderElectric-SquareD_14826_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_00217_INST.pdf
    TS PIK:
    21371486
    Current Rating:
    15 A
    Voltage Rating:
    120 VAC
    Number of Poles:
    1
    Country of Origin:
    United States
    MSRP $273.00
    Surplus $175.56
    Qty in Cart: 0
    Price:
    MSRP $273.00
    Surplus $175.56
  • Square D QOT2020 Miniature Circuit Breakers (MCBs) 120V EA Square D QOT2020 Miniature Circuit Breakers (MCBs) 120V EA

    Square D QOT2020 Miniature Circuit Breakers (MCBs) 120V EA

    MSRP $62.64
    Surplus $36.40
    Square D QOT2020 Miniature Circuit Breakers (MCBs) 120V EA​ ARCA SKU:  C15-1633 Brand:  Square D MPN:  QOT2020 UPC:  78590141808 Shipping Weight:  0.30 lbs. Shipping Height:  3.25 In...
    SKU:
    C15-1633
    Series:
    QO
    Type:
    Thermal Magnetic
    Type:
    Duplex
    Approval:
    UL
    Approval:
    CSA
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 3.23 Inch Height
    Volts:
    120/240 VAC 50/60 Hertz
    Amps:
    32 A
    Used On:
    QO Load Center
    Poles:
    1
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Pressure Plate
    Wire Size:
    12 to 8 AWG (Aluminum)
    Wire Size:
    14 to 8 AWG (Copper)
    Short Description:
    120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, 12 to 8 AWG Aluminum, 14 to 8 AWG Copper, Plug-In Mount, Pressure Plate Terminal, Tandem
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_4_CAT.pdf
    TS PIK:
    111088439
    Data Sheet:
    SchneiderElectric-SquareD_53730_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01291_INST.pdf
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    1
    Current Rating:
    20 A
    Country of Origin:
    Mexico
    MSRP $62.64
    Surplus $36.40
    Qty in Cart: 0
    Price:
    MSRP $62.64
    Surplus $36.40
  • Square D QO1151021 Miniature Circuit Breakers (MCBs)

    Square D QO1151021 Miniature Circuit Breakers (MCBs)

    Surplus $500.00
    SKU:  C15-10866 Brand:  Square D MPN:  QO1151021 UPC:  78590149380 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10866
    TS PIK:
    111089490
    Interrupting Rating:
    10 kA
    Mounting:
    Plug-On
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 15 A, 10 kA Interrupt, 1-Pole, Plug-On Mount, 2-Panel Space, Pressure Plate Terminal, AC Shunt Trip, Standard, Miniature Circuit Breaker
    Wire Size:
    14 to 8 AWG (Aluminum/Copper), (2) 14 to 10 AWG (Copper)
    Number of Poles:
    1
    Catalog:
    SchneiderElectric-SquareD_03264_1_3_1_9_CAT.pdf
    Current Rating:
    15 A
    Terminal Type:
    Pressure Plate
    Used On:
    QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
    Approval:
    UL, CSA
    Size:
    0.75 Inch W x 2.91 Inch D x 3 Inch H
    CAD Drawings:
    SchneiderElectric-SquareD_17842_1_CAD.pdf
    Data Sheet:
    SchneiderElectric-SquareD_14825_1_2_DATA.pdf
    Type:
    Thermal Magnetic
    Voltage Rating:
    120/240 VAC at 50/60 Hz
    Surplus $500.00
    Qty in Cart: 0
    Price:
    Surplus $500.00
  • Square D QO1201021 Miniature Circuit Breakers (MCBs)

    Square D QO1201021 Miniature Circuit Breakers (MCBs)

    MSRP $378.00
    Surplus $251.37
    SKU:  C15-10872 Brand:  Square D MPN:  QO1201021 UPC:  78590149381 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10872
    TS PIK:
    111089491
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 1-Pole, Plug-On Mount, 2-Panel Space, Pressure Plate Terminal, AC Shunt Trip, Standard, Miniature Circuit Breaker
    Mounting:
    Plug-On
    Type:
    Thermal Magnetic
    Interrupting Rating:
    10 kA
    Number of Poles:
    1
    Wire Size:
    14 to 8 AWG (Aluminum/Copper), (2) 14 to 10 AWG (Copper)
    Used On:
    QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
    Current Rating:
    20 A
    Catalog:
    SchneiderElectric-SquareD_03264_1_3_1_9_1_39_CAT.pdf
    Terminal Type:
    Pressure Plate
    Size:
    0.75 Inch W x 2.91 Inch D x 3 Inch H
    CAD Drawings:
    SchneiderElectric-SquareD_03058_1_CAD.pdf
    Voltage Rating:
    120/240 VAC at 50/60 Hz
    Approval:
    UL, CSA
    Data Sheet:
    SchneiderElectric-SquareD_14834_1_2_DATA.pdf
    Country of Origin:
    United States
    MSRP $378.00
    Surplus $251.37
    Qty in Cart: 0
    Price:
    MSRP $378.00
    Surplus $251.37
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    Square D QO120CAFI Miniature Circuit Breakers (MCBs) EA Square D QO120CAFI Miniature Circuit Breakers (MCBs) EA

    Square D QO120CAFI Miniature Circuit Breakers (MCBs) EA

    MSRP $282.00
    Surplus $78.40
    Square D QO120CAFI Miniature Circuit Breakers (MCBs) EA​ ARCA SKU:  C15-2938 Brand:  Square D MPN:  QO120CAFI UPC:  78590143835 Shipping Weight:  0.55 lbs. Shipping Height:  4.00 In...
    SKU:
    C15-2938
    Series:
    QO, QO-AFI
    Type:
    Miniature
    Type:
    Thermal Magnetic
    Approval:
    UL 1699
    Approval:
    CSA
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 4.75 Inch Height
    Volts:
    120 VAC
    Amps:
    32 A
    Used On:
    NQOD Panelboard
    Used On:
    QO Loadcenter
    Used On:
    Speed-D Switchboard Distribution Panel
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Pressure Plate
    Application:
    Heating
    Application:
    Air Conditioning
    Application:
    Refrigeration
    Wire Size:
    12 to 8 AWG (Aluminum)
    Wire Size:
    14 to 8 AWG (Copper)
    Poles:
    1
    Construction Feature:
    Arc Fault Circuit Interrupter
    Short Description:
    0.75" x 2.91" x 4.75", 120/240 VAC 50/60 Hz, 20 A, 10 kA, 1-Pole, Plug-In Mount, Combination Arc Fault
    Catalog:
    SchneiderElectric-SquareD_03264_1_5_CAT.pdf
    Data Sheet:
    SchneiderElectric-SquareD_00921_1_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_00197_INST.pdf
    TS PIK:
    122548227
    Voltage Rating:
    120 VAC
    Current Rating:
    20 A
    Number of Poles:
    1
    Country of Origin:
    Mexico
    MSRP $282.00
    Surplus $78.40
    Qty in Cart: 0
    Price:
    MSRP $282.00
    Surplus $78.40
  • Square D QO130EPD Miniature Circuit Breakers (MCBs) QO 1P 30A 120V 50/60Hz 1Ph Square D QO130EPD Miniature Circuit Breakers (MCBs) QO 1P 30A 120V 50/60Hz 1Ph

    Square D QO130EPD Miniature Circuit Breakers (MCBs) QO 1P 30A 120V 50/60Hz 1Ph

    MSRP $557.00
    Surplus $305.90
    Square D QO130EPD Miniature Circuit Breakers (MCBs) QO 1P 30A 120V 50/60Hz 1Ph​ ARCA SKU:  C15-3365 Brand:  Square D MPN:  QO130EPD UPC:  785901763871 Shipping Weight:  0.55 Shipping Height:  2...
    SKU:
    C15-3365
    Series:
    QO-EPD
    Type:
    Miniature
    Type:
    Thermal Magnetic
    Type:
    Equipment Protector
    Approval:
    UL
    Approval:
    CSA
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 4.12 Inch Height
    Volts:
    120 VAC
    Amps:
    32 A
    Used On:
    QO Loadcenter
    Used On:
    NQ Panelboard
    Used On:
    NQ OEM Interior/Speed-D Switchboard Distribution Panel
    Poles:
    1
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Pressure Plate
    Wire Size:
    12 to 8 AWG (Aluminum)
    Wire Size:
    14 to 8 AWG (Copper)
    Trip Sensitivity:
    30 MilliA
    Short Description:
    120 VAC 50/60 Hz, 30 A, 10 kA Interrupt, 1-Pole, Plug-In Mount, 1-Panel Space, Pressure Plate Terminal, 30 mA Class B Ground Fault
    Catalog:
    SchneiderElectric-SquareD_03264_1_6_CAT.pdf
    Data Sheet:
    SchneiderElectric-SquareD_14868_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_00881_INST.pdf
    Voltage Rating:
    120 VAC
    Current Rating:
    30 A
    Number of Poles:
    1
    Country of Origin:
    Mexico
    Prop 65 Warning:
    Yes
    MSRP $557.00
    Surplus $305.90
    Qty in Cart: 0
    Price:
    MSRP $557.00
    Surplus $305.90
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    Square D QOB120AFI Miniature Circuit Breakers (MCBs) EA

    Square D QOB120AFI Miniature Circuit Breakers (MCBs) EA

    MSRP $261.00
    Surplus $186.20
    Square D QOB120AFI Miniature Circuit Breakers (MCBs) EA​ ARCA SKU:  C15-10990 Brand:  Square D MPN:  QOB120AFI UPC:   Shipping Weight:  0.55 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-10990
    Short Description:
    120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, Bolt-On Mount, 1-Panel Space, Pressure Plate Terminal, Pigtail, Arc Fault, Miniature Circuit Breaker
    Series:
    QOB-AFI
    Terminal Type:
    Pressure Plate
    Size:
    0.75 Inch W x 2.91 Inch D x 3 Inch H
    Voltage Rating:
    120 VAC at 50/60 Hz (UL/CSA)
    Current Rating:
    20 A
    Mounting:
    Bolt-On
    Data Sheet:
    SchneiderElectric-SquareD_15109_1_2_DATA.pdf
    Used On:
    NQ and NQOD Panelboard/Interior
    Wire Size:
    12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
    CAD Drawings:
    SchneiderElectric-SquareD_03066_1_CAD.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_00217_INST.pdf
    Type:
    Thermal Magnetic
    Interrupting Rating:
    10 kA
    Number of Poles:
    1
    Construction Feature:
    ARC Fault Circuit Interrupter
    Prop 65 Warning:
    Yes
    Approval:
    UL, CSA
    Poles:
    1
    Application:
    HACR
    MSRP $261.00
    Surplus $186.20
    Qty in Cart: 0
    Price:
    MSRP $261.00
    Surplus $186.20

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