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 QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph

    Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph

    MSRP $530.00
    Surplus $336.00
    Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph​ ARCA SKU:  C15-2181 Brand:  Square D MPN:  QO3100VH UPC:  785901060192 Shipping Weight:  39.10 Shipping...
    SKU:
    C15-2181
    Series:
    QO
    Type:
    Bi-Metallic
    Type:
    Thermal
    Approval:
    UL
    Approval:
    CSA
    Size:
    2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
    Volts:
    120/240 VAC 50/60 Hertz
    Amps:
    32 A
    Used On:
    QO Load Center
    Used On:
    NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    22 kA
    Enclosure:
    IP20
    Terminal Type:
    Box Lug
    Wire Size:
    4 to 2/0 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC 50/60 Hz, 100 A, 22 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Data Sheet:
    Eaton_41013_1-7_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Number of Poles:
    3
    Current Rating:
    100 A
    Voltage Rating:
    120/240 VAC 50/60 Hertz
    Country of Origin:
    Mexico
    MSRP $530.00
    Surplus $336.00
    Qty in Cart: 0
    Price:
    MSRP $530.00
    Surplus $336.00
  • Square D QO3201021 Miniature Circuit Breakers (MCBs)

    Square D QO3201021 Miniature Circuit Breakers (MCBs)

    MSRP $437.00
    Surplus $334.13
    SKU:  C15-10902 Brand:  Square D MPN:  QO3201021 UPC:  78590149409 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10902
    TS PIK:
    111089501
    Terminal Type:
    Pressure Plate
    Short Description:
    120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 3-Pole, 14 to 8 AWG Aluminum/Copper, Plug-On Mount, Pressure Plate Terminal, Standard, AC Shunt Trip, Miniature Circuit Breaker
    Wire Size:
    14 to 8 AWG (Aluminum/Copper), (2) 14 to 10 AWG (Copper)
    Catalog:
    SchneiderElectric-SquareD_03264_1_3_1_9_CAT.pdf
    Mounting:
    Plug-On
    Current Rating:
    20 A
    Data Sheet:
    SchneiderElectric-SquareD_15027_1_2_DATA.pdf
    Number of Poles:
    3
    Interrupting Rating:
    10 kA
    CAD Drawings:
    SchneiderElectric-SquareD_03058_1_CAD.pdf
    Size:
    2.25 Inch W x 2.91 Inch D x 3 Inch H
    Used On:
    QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
    Voltage Rating:
    240 VAC at 50/60 Hz
    Type:
    Common Trip, Thermal Magnetic
    Approval:
    UL, CSA
    Country of Origin:
    Mexico
    MSRP $437.00
    Surplus $334.13
    Qty in Cart: 0
    Price:
    MSRP $437.00
    Surplus $334.13
  • Square D QO335 Miniature Circuit Breakers (MCBs) 3P 35A 240V

    Square D QO335 Miniature Circuit Breakers (MCBs) 3P 35A 240V

    MSRP $248.00
    Surplus $72.80
    Square D QO335 Miniature Circuit Breakers (MCBs) 3P 35A 240V​ ARCA SKU:  C15-6459 Brand:  Square D MPN:  QO335 UPC:  78590101247 Shipping Weight:  0.80 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-6459
    TS PIK:
    21032422
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Wire Size:
    8 to 2 AWG (Copper/Aluminum)
    Interrupting Rating:
    5/10 kA
    Data Sheet:
    SchneiderElectric-SquareD_53591_1_2_DATA.pdf
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 35 A, 5/10 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
    Terminal Type:
    Box Lug
    Current Rating:
    35 A
    Type:
    Common Trip, Miniature, Standard
    Mounting:
    Plug-On
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    3
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Size:
    2.24 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
    Used On:
    QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Series:
    QO
    Country of Origin:
    Mexico
    Approval:
    UL, CSA
    MSRP $248.00
    Surplus $72.80
    Qty in Cart: 0
    Price:
    MSRP $248.00
    Surplus $72.80
  • Square D QO340 Miniature Circuit Breakers (MCBs) 3P 40A 240V

    Square D QO340 Miniature Circuit Breakers (MCBs) 3P 40A 240V

    MSRP $273.00
    Surplus $75.08
    Square D QO340 Miniature Circuit Breakers (MCBs) 3P 40A 240V​ ARCA SKU:  C15-4924 Brand:  Square D MPN:  QO340 UPC:  78590140076 Shipping Weight:  0.85 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-4924
    Series:
    QO
    Type:
    Common Trip
    Type:
    Miniature
    Type:
    Standard
    Approval:
    UL
    Approval:
    CSA
    Size:
    2.24 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:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    5/10 kA
    Terminal Type:
    Box Lug
    Wire Size:
    8 to 2 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 40 A, 5/10 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Data Sheet:
    SchneiderElectric-SquareD_53592_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Manufacturer Warranty:
    SchneiderElectric-SquareD_00002_WARR.pdf
    TS PIK:
    21371537
    Current Rating:
    40 A
    Voltage Rating:
    120/240 VAC 50/60 Hertz, 48 VDC
    Number of Poles:
    3
    Country of Origin:
    Mexico
    MSRP $273.00
    Surplus $75.08
    Qty in Cart: 0
    Price:
    MSRP $273.00
    Surplus $75.08
  • Square D QO3401021 Miniature Circuit Breakers (MCBs) QO 3P 40A 240V 50/60Hz 3Ph

    Square D QO3401021 Miniature Circuit Breakers (MCBs) QO 3P 40A 240V 50/60Hz 3Ph

    MSRP $498.00
    Surplus $505.40
    Square D QO3401021 Miniature Circuit Breakers (MCBs) QO 3P 40A 240V 50/60Hz 3Ph​ ARCA SKU:  C15-4849 Brand:  Square D MPN:  QO3401021 UPC:  785901494126 Shipping Weight:  1.20 Shipping...
    SKU:
    C15-4849
    Type:
    Common Trip
    Type:
    Thermal Magnetic
    Approval:
    UL
    Approval:
    CSA
    Size:
    2.25 Inch W x 2.91 Inch D x 3 Inch H
    Volts:
    240 VAC at 50/60 Hz
    Amps:
    32 A
    Used On:
    QO Load Center
    Used On:
    NQOD Panelboard
    Used On:
    OEM Interior/Speed-D Switchboard Distribution Panel
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Terminal Type:
    Box Lug
    Wire Size:
    8 to 2 AWG (Aluminum/Copper)
    Short Description:
    120/240 VAC 50/60 Hz, 40 A, 10 kA Interrupt, 3-Pole, 8 to 2 AWG Aluminum/Copper, Plug-In Mount, Box Lug Terminal, Standard, AC Shunt Trip
    Catalog:
    SchneiderElectric-SquareD_03264_1_3_1_9_CAT.pdf
    Data Sheet:
    SchneiderElectric-SquareD_15051_1_2_DATA.pdf
    Country of Origin:
    United States
    Voltage Rating:
    240 VAC at 50/60 Hz
    Current Rating:
    40 A
    Number of Poles:
    3
    MSRP $498.00
    Surplus $505.40
    Qty in Cart: 0
    Price:
    MSRP $498.00
    Surplus $505.40
  • Square D QO340VH Miniature Circuit Breakers (MCBs)

    Square D QO340VH Miniature Circuit Breakers (MCBs)

    MSRP $371.00
    Surplus $222.75
    SKU:  C15-10905 Brand:  Square D MPN:  QO340VH UPC:  78590106020 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10905
    TS PIK:
    111081736
    Wire Size:
    8 to 2 AWG (Copper/Aluminum)
    Data Sheet:
    SchneiderElectric-SquareD_53594_1_2_DATA.pdf
    Used On:
    QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Interrupting Rating:
    22 kA
    Current Rating:
    40 A
    Mounting:
    Plug-On
    Terminal Type:
    Box Lug
    Voltage Rating:
    120/240 VAC 50/60 Hertz
    Series:
    QO
    Type:
    Common Trip, Miniature, Standard
    Short Description:
    120/240 VAC 50/60 Hz, 40 A, 22 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
    Size:
    2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Number of Poles:
    3
    Approval:
    UL, CSA
    Country of Origin:
    Mexico
    MSRP $371.00
    Surplus $222.75
    Qty in Cart: 0
    Price:
    MSRP $371.00
    Surplus $222.75
  • Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph

    Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph

    MSRP $371.00
    Surplus $249.20
    Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph​ ARCA SKU:  C15-2190 Brand:  Square D MPN:  QO350VH UPC:  785901060215 Shipping Weight:  1.03 Shipping Height:  2.30...
    SKU:
    C15-2190
    Series:
    QO
    Type:
    Bi-Metallic
    Type:
    Thermal
    Approval:
    UL
    Approval:
    CSA
    Size:
    2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
    Volts:
    120/240 VAC 50/60 Hertz
    Amps:
    32 A
    Used On:
    QO Load Center
    Used On:
    NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    22 kA
    Enclosure:
    IP20
    Terminal Type:
    Box Lug
    Wire Size:
    8 to 2 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC 50/60 Hz, 50 A, 22 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Data Sheet:
    Eaton_41012_1-6_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Number of Poles:
    3
    Voltage Rating:
    120/240 VAC 50/60 Hertz
    Current Rating:
    50 A
    Country of Origin:
    Ireland
    MSRP $371.00
    Surplus $249.20
    Qty in Cart: 0
    Price:
    MSRP $371.00
    Surplus $249.20
  • Square D QOT1515 Miniature Circuit Breakers (MCBs)

    Square D QOT1515 Miniature Circuit Breakers (MCBs)

    MSRP $26.98
    Surplus $22.95
    SKU:  C15-6605 Brand:  Square D MPN:  QOT1515 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-6605
    TS PIK:
    109595258
    Type:
    Tandem, Miniature
    Interrupting Rating:
    10 kA
    Series:
    QO
    Short Description:
    120/240 VAC 50/60 Hz, 15 A, 10 kA Interrupt, 1-Pole, 12 to 8 AWG Aluminum, 14 to 8 AWG Copper, Plug-On Mount, Pressure Plate Terminal, Tandem, Miniature Circuit Breaker
    Number of Poles:
    1
    Current Rating:
    15 A
    Voltage Rating:
    120/240 VAC 50/60 Hertz
    Approval:
    UL, CSA
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_4_CAT.pdf
    Terminal Type:
    Pressure Plate
    Wire Size:
    12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
    Mounting:
    Plug-On
    Used On:
    QO Load Center
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 3.23 Inch Height
    Data Sheet:
    SchneiderElectric-SquareD_53728_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01290_INST.pdf
    Country of Origin:
    United States
    MSRP $26.98
    Surplus $22.95
    Qty in Cart: 0
    Price:
    MSRP $26.98
    Surplus $22.95
  • Square D QOT1520 Miniature Circuit Breakers (MCBs)

    Square D QOT1520 Miniature Circuit Breakers (MCBs)

    MSRP $53.37
    Surplus $34.58
    Square D QOT1520 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-6479 Brand:  Square D MPN:  QOT1520 UPC:  78590141804 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-6479
    TS PIK:
    111088438
    Short Description:
    120/240 VAC 50/60 Hz, 15/20 A, 10 kA Interrupt, 1-Pole, 12 to 8 AWG Aluminum, 14 to 8 AWG Copper, Plug-In Mount, Pressure Plate Terminal, Tandem, Miniature Circuit Breaker
    Series:
    QO
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 3.23 Inch Height
    Current Rating:
    15/20 A
    Type:
    Tandem, Miniature
    Terminal Type:
    Pressure Plate
    Voltage Rating:
    120/240 VAC 50/60 Hertz
    Mounting:
    Plug-On
    Number of Poles:
    1
    Interrupting Rating:
    10 kA
    Installation/Operator:
    SchneiderElectric-SquareD_01290_INST.pdf
    Data Sheet:
    SchneiderElectric-SquareD_53729_1_2_DATA.pdf
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_4_CAT.pdf
    Wire Size:
    12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
    Used On:
    QO Load Center
    Country of Origin:
    Mexico
    Approval:
    UL, CSA
    MSRP $53.37
    Surplus $34.58
    Qty in Cart: 0
    Price:
    MSRP $53.37
    Surplus $34.58
  • Eaton BRP120AF Miniature Circuit Breakers (MCBs) Eaton BRP120AF Miniature Circuit Breakers (MCBs)

    Eaton BRP120AF Miniature Circuit Breakers (MCBs)

    MSRP $130.00
    Surplus $46.80
    Eaton BRP120AF Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-1349 Brand:  Eaton MPN:  BRP120AF UPC:  78668904102 Shipping Weight:  0.45 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-1349
    Approval:
    UL
    Size:
    1 Inch Width x 2.56 Inch Depth x 1.1 Inch Height
    Volts:
    120 VAC
    Amps:
    32 A
    Interrupting Rating:
    10 kA
    Enclosure:
    Indoor/Outdoor
    Terminal Type:
    Plug-On
    Application:
    BR Load Center
    Wire Size:
    14 to 8 AWG (Copper/Aluminum)
    Poles:
    1
    Short Description:
    120 VAC, 20 A, 1-Pole, 10 kA, Plug-On Neutral, Wide
    Catalog:
    Eaton_00001_V1T1_50_V1T1_86_CAT.pdf
    Installation/Operator:
    Eaton_00005_INST.pdf
    CAD Drawing:
    Eaton_41108_1_CAD.pdf
    TS PIK:
    127414229
    Voltage Rating:
    120 VAC
    Current Rating:
    20 A
    Type:
    Plug-On Neutral, Wide
    Mounting:
    Plug-On
    Number of Poles:
    1
    Series:
    BR
    Country of Origin:
    Dominican Republic
    MSRP $130.00
    Surplus $46.80
    Qty in Cart: 0
    Price:
    MSRP $130.00
    Surplus $46.80

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