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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  • Eaton FAZ-C20/3-RT Miniature Circuit Breakers (MCBs) FAZ 3P 20A 277V 50/60Hz 3Ph EA Eaton FAZ-C20/3-RT Miniature Circuit Breakers (MCBs) FAZ 3P 20A 277V 50/60Hz 3Ph EA

    Eaton FAZ-C20/3-RT Miniature Circuit Breakers (MCBs) FAZ 3P 20A 277V 50/60Hz 3Ph EA

    MSRP $580.00
    Surplus $38.24
    Eaton FAZ-C20/3-RT Miniature Circuit Breakers (MCBs) FAZ 3P 20A 277V 50/60Hz 3Ph EA​ ARCA SKU:  C15-3565 Brand:  Eaton MPN:  FAZ-C20/3-RT UPC:  015081021677 Shipping Weight:  0.80 lbs. Shipping...
    SKU:
    C15-3565
    Series:
    FAZ
    Type:
    Current Limiting
    Type:
    Thermal Magnetic
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Size:
    2.09 Inch Width x 2.36 Inch Depth x 4.13 Inch Height
    Volts:
    277/480 VAC
    Amps:
    32 A
    Poles:
    3
    Mounting:
    DIN Rail
    Interrupting Rating:
    10 kA
    Terminal Type:
    Screw
    Wire Size:
    18 to 4/18 to 8 AWG
    Trip Setting:
    5 to 10 x Rated Current
    Short Description:
    277/480 VAC 50/60 Hz, 20 A, 3-Pole, 10/14 kA, 5 to 10 x Rated Current, Ring Tongue Terminal, DIN Rail Mount, Standard Packaging, C-Curve, Current Limiting, Thermal Magnetic
    Catalog:
    Eaton_03771_V4T1_47-V4T1_72_CAT.pdf
    Data Sheet:
    Eaton_53898_1-5_DATA.pdf
    Voltage Rating:
    277/480 VAC
    Current Rating:
    20 A
    Number of Poles:
    3
    Curve Type:
    C
    TS PIK:
    124501593
    Country of Origin:
    Spain
    MSRP $580.00
    Surplus $38.24
    Qty in Cart: 0
    Price:
    MSRP $580.00
    Surplus $38.24
  • Contact Us For Quote
    Murray MP320 Miniature Circuit Breakers (MCBs) 3P 20A 50/60Hz 3Ph EA

    Murray MP320 Miniature Circuit Breakers (MCBs) 3P 20A 50/60Hz 3Ph EA

    MSRP $512.10
    Surplus $49.46
    Murray MP320 Miniature Circuit Breakers (MCBs) 3P 20A 50/60Hz 3Ph EA​ ARCA SKU:  C15-6310 Brand:  Murray MPN:  MP320 UPC:  30040892237802 Shipping Weight:  2.90 lbs. Shipping Height:  3.00...
    SKU:
    C15-6310
    Short Description:
    240 VAC, 20 A, 10 kA, 3-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
    Size:
    3 Inch W x 3 Inch D x 3 1/8 Inch H
    Terminal Type:
    Load Lug
    Interrupting Rating:
    10 kA
    Series:
    MP-T
    Voltage Rating:
    240 VAC
    Current Rating:
    20 A
    Data Sheet:
    SiemensAG_06646_1_DATA.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Used On:
    Loadcenter
    Wire Size:
    16 to 14 AWG (Copper/Aluminum)
    Mounting:
    Plug-On
    Type:
    Common Trip
    Number of Poles:
    3
    Country of Origin:
    Mexico
    MSRP $512.10
    Surplus $49.46
    Qty in Cart: 0
    Price:
    MSRP $512.10
    Surplus $49.46
  • Eaton CH320 Miniature Circuit Breakers (MCBs) 3P 20A 240V EA Eaton CH320 Miniature Circuit Breakers (MCBs) 3P 20A 240V EA

    Eaton CH320 Miniature Circuit Breakers (MCBs) 3P 20A 240V EA

    MSRP $376.54
    Surplus $105.30
    Eaton CH320 Miniature Circuit Breakers (MCBs) 3P 20A 240V EA​ ARCA SKU:  C15-2087 Brand:  Eaton MPN:  CH320 UPC:  782113102023 Shipping Weight:  0.85 lbs. Shipping Height:  4.00 In...
    SKU:
    C15-2087
    Approval:
    UL 489
    Approval:
    CSA
    Amps:
    20 A
    Interrupting Rating:
    10 kA
    Mounting:
    Plug-On
    Poles:
    3
    Terminal Type:
    Thermal Magnetic
    Type:
    Common Trip
    Used On:
    CH Series Load Center
    Volts:
    240 VAC
    Gauge:
    (1) 14 to 6 AWG (Copper/Aluminum)
    Short Description:
    240 VAC, 20 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Circuit Breaker
    Series:
    CH
    Catalog:
    Eaton_36620_V1T1_36_V1T1_37_CAT.pdf
    Voltage Rating:
    240 VAC
    Current Rating:
    20 A
    Wire Size:
    (1) 14 to 6 AWG (Copper/Aluminum)
    Number of Poles:
    3
    Country of Origin:
    Dominican Republic
    MSRP $376.54
    Surplus $105.30
    Qty in Cart: 0
    Price:
    MSRP $376.54
    Surplus $105.30
  • Siemens Q320 Miniature Circuit Breakers (MCBs) 3P 20A EA

    Siemens Q320 Miniature Circuit Breakers (MCBs) 3P 20A EA

    MSRP $329.00
    Surplus $52.65
    SKU:  C15-6194 Brand:  Siemens MPN:  Q320 UPC:  66286200430 Shipping Weight:  1.00 lbs. Shipping Height:  2.50 In. Shipping Length:  3.00 In. Shipping Width:  3.00 In...
    SKU:
    C15-6194
    TS PIK:
    21366754
    Catalog:
    SiemensAG_00876_1_12_CAT.pdf
    Voltage Rating:
    240 V
    Short Description:
    240 VAC, 20 A, 10 kA Interrupt, 3-Pole, Load Centre Main, Feeder, Thermal Magnetic, Common Trip, Miniature Circuit Breaker
    Type:
    Thermal Magnetic, Common Trip
    Data Sheet:
    SiemensAG_01651_1_DATA.pdf
    Current Rating:
    20 A
    Size:
    3.7 Inch Width x 12.8 Inch Depth x 3.4 Inch Height
    Used On:
    Load Centre Main, Feeder
    Interrupting Rating:
    10 kA
    Number of Poles:
    3
    Mounting:
    Plug-On
    Country of Origin:
    MEX
    Approval:
    UL 489
    MSRP $329.00
    Surplus $52.65
    Qty in Cart: 0
    Price:
    MSRP $329.00
    Surplus $52.65
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    Crouse-Hinds BR320ST Miniature Circuit Breakers (MCBs)

    Crouse-Hinds BR320ST Miniature Circuit Breakers (MCBs)

    MSRP $655.18
    Surplus $244.48
    SKU:  C15-5664 Brand:  Crouse-Hinds MPN:  BR320ST UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-5664
    TS PIK:
    115785804
    Short Description:
    240 VAC, 20 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Shunt Trip, Duplex, Thermal Magnetic, Circuit Breaker
    Current Rating:
    20 A
    Type:
    Thermal Magnetic, Common Trip
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Number of Poles:
    3
    Wire Size:
    14 to 4 AWG (Aluminum/Copper)
    Catalog:
    Eaton_36620_V1T1_84_CAT.pdf
    Used On:
    BR Series Loadcenter
    Voltage Rating:
    240 VAC
    Series:
    BR
    Approval:
    UL 489
    MSRP $655.18
    Surplus $244.48
    Qty in Cart: 0
    Price:
    MSRP $655.18
    Surplus $244.48
  • Contact Us For Quote
    Eaton BR320ST Miniature Circuit Breakers (MCBs) BR 3P 20A 120/240V 50/60Hz 3Ph EA

    Eaton BR320ST Miniature Circuit Breakers (MCBs) BR 3P 20A 120/240V 50/60Hz 3Ph EA

    MSRP $733.00
    Surplus $277.20
    Eaton BR320ST Miniature Circuit Breakers (MCBs) BR 3P 20A 120/240V 50/60Hz 3Ph EA​ ARCA SKU:  C15-1254 Brand:  Eaton MPN:  BR320ST UPC:  786676003360 Shipping Weight:  1.30 Shipping Height:  3...
    SKU:
    C15-1254
    Series:
    BR
    Type:
    Barrier
    Approval:
    UL 489
    Volts:
    240 VAC
    Amps:
    32 A
    Used On:
    BR Series Loadcenter
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Wire Size:
    14 to 4 AWG (Aluminum/Copper)
    Short Description:
    240 VAC, 20 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Shunt Trip, Duplex, Thermal Magnetic
    Catalog:
    Eaton_36620_V1T1_84_CAT.pdf
    Data Sheet:
    Mersen_00019_FB22_FB23_DATA.pdf
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Current Rating:
    20 A
    MSRP $733.00
    Surplus $277.20
    Qty in Cart: 0
    Price:
    MSRP $733.00
    Surplus $277.20
  • Contact Us For Quote
    Eaton CH320ST Miniature Circuit Breakers (MCBs)

    Eaton CH320ST Miniature Circuit Breakers (MCBs)

    MSRP $414.75
    Surplus $0.00
    SKU:  C15-19157 Brand:  Eaton MPN:  CH320ST UPC:  78211333965 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19157
    Used On:
    CH Series Loadcenter
    Type:
    Thermal Magnetic, Common Trip
    Interrupting Rating:
    10 kA
    Voltage Rating:
    240 VAC
    Wire Size:
    (1) 14 to 6 AWG (Aluminum/Copper)
    Mounting:
    Plug-On
    Approval:
    UL 489, CSA
    Number of Poles:
    3
    Current Rating:
    20 A
    Short Description:
    240 VAC, 20 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Shunt Trip, Thermal Magnetic, Circuit Breaker
    Series:
    CH
    Catalog:
    Eaton_36620_V1T1_36_V1T1_37_V1T1_43_CAT.pdf
    MSRP $414.75
    Surplus $0.00
    Qty in Cart: 0
    Price:
    MSRP $414.75
    Surplus $0.00
  • Eaton FAZ-B20/3-NA Miniature Circuit Breakers (MCBs) Eaton FAZ-B20/3-NA Miniature Circuit Breakers (MCBs)

    Eaton FAZ-B20/3-NA Miniature Circuit Breakers (MCBs)

    MSRP $412.00
    Surplus $53.85
    Eaton FAZ-B20/3-NA Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-3864 Brand:  Eaton MPN:  FAZ-B20/3-NA UPC:  015081296747 Shipping Weight:  0.85 lbs. Shipping Height:  2.00 In...
    SKU:
    C15-3864
    Series:
    FAZ
    Type:
    Current Limiting
    Type:
    Thermal Magnetic
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Size:
    2.09 Inch Width x 2.36 Inch Depth x 4.13 Inch Height
    Volts:
    277/480 VAC
    Amps:
    32 A
    Poles:
    3
    Mounting:
    DIN Rail
    Interrupting Rating:
    10 kA
    Terminal Type:
    Screw
    Wire Size:
    18 to 4/18 to 8 AWG
    Trip Setting:
    3 to 5 x Rated Current
    Short Description:
    277/480 VAC 50/60 Hz, 20 A, 3-Pole, 10/14 kA, 3 to 5 x Rated Current, Screw Terminal, DIN Rail Mount, Standard Packaging, B-Curve, Current Limiting, Thermal Magnetic
    Catalog:
    Eaton_03771_V4T1_47-V4T1_72_CAT.pdf
    Data Sheet:
    Eaton_53650_1_2_DATA.pdf
    Number of Poles:
    3
    Voltage Rating:
    277/480 VAC
    Current Rating:
    20 A
    Curve Type:
    B
    TS PIK:
    124610216
    Country of Origin:
    Spain
    MSRP $412.00
    Surplus $53.85
    Qty in Cart: 0
    Price:
    MSRP $412.00
    Surplus $53.85
  • 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 QOU320 Miniature Circuit Breakers (MCBs)

    Square D QOU320 Miniature Circuit Breakers (MCBs)

    MSRP $308.00
    Surplus $143.76
    SKU:  C15-10933 Brand:  Square D MPN:  QOU320 UPC:  78590141889 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10933
    TS PIK:
    111088453
    Wire Size:
    14 to 2 AWG (Copper/Aluminum)
    Series:
    QOU
    Interrupting Rating:
    10 kA
    Current Rating:
    20 A
    Voltage Rating:
    120/240 VAC 50/60 Hertz, 48 VDC
    Terminal Type:
    Slotted Box Lug Line/Load
    Size:
    2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
    Used On:
    OEM
    CAD Drawings:
    SchneiderElectric_30265_1_CAD.pdf
    Number of Poles:
    3
    Short Description:
    120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
    Catalog:
    SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
    Data Sheet:
    SchneiderElectric_21650_1_2_DATA.pdf
    Mounting:
    DIN Rail/Unit/Surface/Flush
    Type:
    Miniature, Standard
    Installation/Operator:
    SchneiderElectric-SquareD_02171_INST.pdf
    Approval:
    UL, CSA
    Country of Origin:
    Mexico
    MSRP $308.00
    Surplus $143.76
    Qty in Cart: 0
    Price:
    MSRP $308.00
    Surplus $143.76

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