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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 QO170 Miniature Circuit Breakers (MCBs)

    Square D QO170 Miniature Circuit Breakers (MCBs)

    MSRP $67.00
    Surplus $22.59
    Square D QO170 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-6531 Brand:  Square D MPN:  QO170 UPC:  78590147747 Shipping Weight:  0.35 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-6531
    TS PIK:
    109595036
    Number of Poles:
    1
    Series:
    QO
    Type:
    Miniature, Standard
    Mounting:
    Plug-On
    Current Rating:
    70 A
    Size:
    0.75 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
    Wire Size:
    8 to 2 AWG (Copper/Aluminum)
    Voltage Rating:
    120/240 VAC
    Installation/Operator:
    SchneiderElectric-SquareD_01259_INST.pdf
    Interrupting Rating:
    5/10 kA
    Used On:
    QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 70 A, 5/10 kA Interrupt, 1-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
    Data Sheet:
    SchneiderElectric-SquareD_53445_1_2_DATA.pdf
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Terminal Type:
    Box Lug
    Country of Origin:
    Mexico
    Approval:
    UL, CSA
    MSRP $67.00
    Surplus $22.59
    Qty in Cart: 0
    Price:
    MSRP $67.00
    Surplus $22.59
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    Square D QO210 Miniature Circuit Breakers (MCBs)

    Square D QO210 Miniature Circuit Breakers (MCBs)

    MSRP $67.00
    Surplus $34.58
    Square D QO210 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-6583 Brand:  Square D MPN:  QO210 UPC:  78590120560 Shipping Weight:  0.55 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-6583
    TS PIK:
    118952390
    Interrupting Rating:
    5/10 kA
    Number of Poles:
    2
    Size:
    1.5 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
    Voltage Rating:
    120/240 VAC 50/60 Hertz, 48 VDC
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Series:
    QO
    Used On:
    QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Terminal Type:
    Pressure Plate
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Data Sheet:
    SchneiderElectric-SquareD_53468_1_2_DATA.pdf
    Type:
    Common Trip, Miniature, Standard
    Mounting:
    Plug-On
    Wire Size:
    14 to 8 AWG (Copper/Aluminum)
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 10 A, 5/10 kA Interrupt, 2-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
    Current Rating:
    10 A
    Country of Origin:
    Mexico
    Approval:
    UL, CSA
    MSRP $67.00
    Surplus $34.58
    Qty in Cart: 0
    Price:
    MSRP $67.00
    Surplus $34.58
  • Square D QO225 Miniature Circuit Breakers (MCBs) QO 2P 25A 120V 50/60Hz 1Ph Square D QO225 Miniature Circuit Breakers (MCBs) QO 2P 25A 120V 50/60Hz 1Ph

    Square D QO225 Miniature Circuit Breakers (MCBs) QO 2P 25A 120V 50/60Hz 1Ph

    MSRP $350.00
    Surplus $23.68
    Square D QO225 Miniature Circuit Breakers (MCBs) QO 2P 25A 120V 50/60Hz 1Ph​ ARCA SKU:  C15-2572 Brand:  Square D MPN:  QO225 UPC:  785901012412 Shipping Weight:  0.55 Shipping Height:  4.00 In...
    SKU:
    C15-2572
    Series:
    QO
    Type:
    Common Trip
    Type:
    Miniature
    Type:
    Standard
    Approval:
    UL
    Approval:
    CSA
    Size:
    1.5 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:
    2
    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, 25 A, 5/10 kA Interrupt, 2-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Data Sheet:
    SchneiderElectric-SquareD_53530_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Manufacturer Warranty:
    SchneiderElectric-SquareD_00002_WARR.pdf
    Number of Poles:
    2
    Current Rating:
    25 A
    Voltage Rating:
    120/240 VAC 50/60 Hertz, 48 VDC
    Country of Origin:
    Ireland
    MSRP $350.00
    Surplus $23.68
    Qty in Cart: 0
    Price:
    MSRP $350.00
    Surplus $23.68
  • Square D QO235 Miniature Circuit Breakers (MCBs) Square D QO235 Miniature Circuit Breakers (MCBs)

    Square D QO235 Miniature Circuit Breakers (MCBs)

    MSRP $70.00
    Surplus $25.94
    Square D QO235 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-3015 Brand:  Square D MPN:  QO235 UPC:  78590101242 Shipping Weight:  0.60 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-3015
    Series:
    QO
    Type:
    Common Trip
    Type:
    Miniature
    Type:
    Standard
    Approval:
    UL
    Approval:
    CSA
    Size:
    1.5 Inch Width x 2.91 Inch Depth x 3.11 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:
    2
    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, 35 A, 5/10 kA Interrupt, 2-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_53515_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Manufacturer Warranty:
    SchneiderElectric-SquareD_00002_WARR.pdf
    TS PIK:
    590119
    Voltage Rating:
    120/240 VAC
    Current Rating:
    35 A
    Number of Poles:
    2
    Country of Origin:
    Mexico
    MSRP $70.00
    Surplus $25.94
    Qty in Cart: 0
    Price:
    MSRP $70.00
    Surplus $25.94
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    Square D QO245 Everything Else

    Square D QO245 Everything Else

    MSRP $57.08
    Surplus $37.24
    Square D QO245 Everything Else​ ARCA SKU:  C15-6455 Brand:  Square D MPN:  QO245 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In...
    SKU:
    C15-6455
    TS PIK:
    21032365
    Type:
    Common Trip, Miniature, Standard
    Series:
    QO
    Number of Poles:
    2
    Mounting:
    Plug-On
    Voltage Rating:
    120/240 VAC 50/60 Hertz, 48 VDC
    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:
    5/10 kA
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 45 A, 5/10 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
    Data Sheet:
    SchneiderElectric-SquareD_53523_1_2_DATA.pdf
    Wire Size:
    8 to 2 AWG (Copper/Aluminum)
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Current Rating:
    45 A
    Terminal Type:
    Box Lug
    Size:
    1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
    Country of Origin:
    Mexico
    Approval:
    UL, CSA
    MSRP $57.08
    Surplus $37.24
    Qty in Cart: 0
    Price:
    MSRP $57.08
    Surplus $37.24
  • Contact Us For Quote
    Square D QO270 Miniature Circuit Breakers (MCBs) QO 2P 70A 240V 50/60Hz 1Ph EA Square D QO270 Miniature Circuit Breakers (MCBs) QO 2P 70A 240V 50/60Hz 1Ph EA

    Square D QO270 Miniature Circuit Breakers (MCBs) QO 2P 70A 240V 50/60Hz 1Ph EA

    MSRP $144.72
    Surplus $51.00
    Square D QO270 Miniature Circuit Breakers (MCBs) QO 2P 70A 240V 50/60Hz 1Ph EA​ ARCA SKU:  C15-3708 Brand:  Square D MPN:  QO270 UPC:  78590140058 Shipping Weight:  0.60 lbs. Shipping...
    SKU:
    C15-3708
    Series:
    QO
    Type:
    Common Trip
    Type:
    Miniature
    Type:
    Standard
    Approval:
    UL
    Approval:
    CSA
    Size:
    1.5 Inch Width x 2.91 Inch Depth x 3.11 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:
    2
    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, 70 A, 5/10 kA Interrupt, 2-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_53541_1_2_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Manufacturer Warranty:
    SchneiderElectric-SquareD_00002_WARR.pdf
    TS PIK:
    597390
    Number of Poles:
    2
    Voltage Rating:
    120/240 VAC
    Current Rating:
    70 A
    Country of Origin:
    Mexico
    MSRP $144.72
    Surplus $51.00
    Qty in Cart: 0
    Price:
    MSRP $144.72
    Surplus $51.00
  • Contact Us For Quote
    Square D QO320 Miniature Circuit Breakers (MCBs) 3P 20A 240V

    Square D QO320 Miniature Circuit Breakers (MCBs) 3P 20A 240V

    MSRP $248.00
    Surplus $74.00
    Square D QO320 Miniature Circuit Breakers (MCBs) 3P 20A 240V​ ARCA SKU:  C15-6380 Brand:  Square D MPN:  QO320 UPC:  78590140068 Shipping Weight:  2.55 lbs. Shipping Height:  4.00 In...
    SKU:
    C15-6380
    TS PIK:
    124023847
    Mounting:
    Plug-On
    Type:
    Common Trip, Miniature, Standard
    Series:
    QO
    Terminal Type:
    Pressure Plate
    Interrupting Rating:
    5/10 kA
    Size:
    2.24 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 20 A, 5/10 kA Interrupt, 3-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
    Installation/Operator:
    SchneiderElectric-SquareD_01265_INST.pdf
    Voltage Rating:
    120/240 VAC
    Catalog:
    SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
    Wire Size:
    14 to 8 AWG (Copper/Aluminum)
    Used On:
    QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
    Number of Poles:
    3
    Current Rating:
    20 A
    Data Sheet:
    SchneiderElectric-SquareD_53568_1_2_DATA.pdf
    Country of Origin:
    United States
    Approval:
    UL, CSA
    MSRP $248.00
    Surplus $74.00
    Qty in Cart: 0
    Price:
    MSRP $248.00
    Surplus $74.00
  • 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 $67.20
    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 $67.20
    Qty in Cart: 0
    Price:
    MSRP $273.00
    Surplus $67.20

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