It's moving week for ARCA Supply! Orders are shipping as normal, but in the unlikely event of a delay, all operations will be back to normal by Friday.

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.

  • Product
  • Qty in Cart
  • Price
  • Eaton BR370 Miniature Circuit Breakers (MCBs) 1P 15A 240V EA Eaton BR370 Miniature Circuit Breakers (MCBs) 1P 15A 240V EA

    Eaton BR370 Miniature Circuit Breakers (MCBs) 1P 15A 240V EA

    MSRP $596.20
    Surplus $41.91
    Eaton BR370 Miniature Circuit Breakers (MCBs) 1P 15A 240V EA​ ARCA SKU:  C15-1266 Brand:  Eaton MPN:  BR370 UPC:  786676368001 Shipping Weight:  1.00 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-1266
    Series:
    BR
    Type:
    Bi-Metallic
    Approval:
    UL 489
    Size:
    1.9 Inch Length x 2.9 Inch Width x 2.5 Inch Height
    Volts:
    240 VAC
    Amps:
    32 A
    Used On:
    Type BR Load Center
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA at 240 VAC
    Enclosure:
    IP20
    Wire Size:
    4 to 1/0 AWG (Aluminum/Copper)
    Short Description:
    240 VAC, 70 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip
    Catalog:
    Eaton_36620_V1T1_85_CAT.pdf
    Data Sheet:
    Eaton_41007_1-6_DATA.pdf
    TS PIK:
    21493900
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Current Rating:
    70 A
    Country of Origin:
    Dominican Republic
    MSRP $596.20
    Surplus $41.91
    Qty in Cart: 0
    Price:
    MSRP $596.20
    Surplus $41.91
  • Contact Us For Quote
    Crouse-Hinds BR320 Miniature Circuit Breakers (MCBs) 3P

    Crouse-Hinds BR320 Miniature Circuit Breakers (MCBs) 3P

    MSRP $337.57
    Surplus $92.13
    Crouse-Hinds BR320 Miniature Circuit Breakers (MCBs) 3P​ ARCA SKU:  C15-5663 Brand:  Crouse-Hinds MPN:  BR320 UPC:  78667636775 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In...
    SKU:
    C15-5663
    TS PIK:
    21493895
    Short Description:
    240 VAC, 20 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Circuit Breaker
    Voltage Rating:
    240 VAC
    Type:
    Common Trip
    Mounting:
    Plug-On
    Current Rating:
    20 A
    Catalog:
    Eaton_36620_V1T1_85_CAT.pdf
    Used On:
    Type BR Load Center
    Interrupting Rating:
    10 kA at 240 VAC
    Size:
    2.9 Inch Length x 2.9 Inch Width x 2.7 Inch Height
    Series:
    BR
    Wire Size:
    14 to 4 AWG (Aluminum/Copper)
    Number of Poles:
    3
    MSRP $337.57
    Surplus $92.13
    Qty in Cart: 0
    Price:
    MSRP $337.57
    Surplus $92.13
  • Contact Us For Quote
    Crouse-Hinds BR370 Miniature Circuit Breakers (MCBs)

    Crouse-Hinds BR370 Miniature Circuit Breakers (MCBs)

    MSRP $596.20
    Surplus $148.96
    Crouse-Hinds BR370 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-5670 Brand:  Crouse-Hinds MPN:  BR370 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-5670
    TS PIK:
    21493900
    Voltage Rating:
    240 VAC
    Current Rating:
    70 A
    Interrupting Rating:
    10 kA at 240 VAC
    Size:
    1.9 Inch Length x 2.9 Inch Width x 2.5 Inch Height
    Series:
    BR
    Used On:
    Type BR Load Center
    Short Description:
    240 VAC, 70 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Circuit Breaker
    Wire Size:
    4 to 1/0 AWG (Aluminum/Copper)
    Number of Poles:
    3
    Mounting:
    Plug-On
    Catalog:
    Eaton_36620_V1T1_85_CAT.pdf
    Type:
    Common Trip
    MSRP $596.20
    Surplus $148.96
    Qty in Cart: 0
    Price:
    MSRP $596.20
    Surplus $148.96
  • Cutler-Hammer BR370 Miniature Circuit Breakers (MCBs) Cutler-Hammer BR370 Miniature Circuit Breakers (MCBs)

    Cutler-Hammer BR370 Miniature Circuit Breakers (MCBs)

    MSRP $994.00
    Surplus $426.95
    SKU:  C15-11451 Brand:  Cutler-Hammer MPN:  BR370 UPC:   Shipping Weight:  1.00 lbs. Shipping Height:  3.00 In. Shipping Length:  3.00 In. Shipping Width:  3.00 In. Product...
    SKU:
    C15-11451
    TS PIK:
    21493900
    Number of Poles:
    3
    Wire Size:
    4 to 1/0 AWG (Aluminum/Copper)
    Short Description:
    240 VAC, 70 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Circuit Breaker
    Used On:
    Type BR Load Center
    Voltage Rating:
    240 VAC
    Type:
    Common Trip
    Series:
    BR
    Mounting:
    Plug-On
    Current Rating:
    70 A
    Catalog:
    Eaton_36620_V1T1_85_CAT.pdf
    Size:
    1.9 Inch Length x 2.9 Inch Width x 2.5 Inch Height
    Interrupting Rating:
    10 kA at 240 VAC
    Approval:
    UL 489
    Country of Origin:
    Dominican Republic
    MSRP $994.00
    Surplus $426.95
    Qty in Cart: 0
    Price:
    MSRP $994.00
    Surplus $426.95
  • Contact Us For Quote
    Eaton BR320 Miniature Circuit Breakers (MCBs) BR 3P 20A 240V 50/60Hz 3Ph EA Eaton BR320 Miniature Circuit Breakers (MCBs) BR 3P 20A 240V 50/60Hz 3Ph EA

    Eaton BR320 Miniature Circuit Breakers (MCBs) BR 3P 20A 240V 50/60Hz 3Ph EA

    MSRP $337.57
    Surplus $109.20
    Eaton BR320 Miniature Circuit Breakers (MCBs) BR 3P 20A 240V 50/60Hz 3Ph EA​ ARCA SKU:  C15-1253 Brand:  Eaton MPN:  BR320 UPC:  786676367752 Shipping Weight:  0.95 lbs. Shipping...
    SKU:
    C15-1253
    Series:
    BR
    Type:
    Bi-Metallic
    Type:
    Thermal
    Approval:
    UL 489
    Size:
    2.9 Inch Length x 2.9 Inch Width x 2.7 Inch Height
    Volts:
    240 VAC
    Amps:
    32 A
    Used On:
    Type BR Load Center
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA at 240 VAC
    Enclosure:
    IP20
    Wire Size:
    14 to 4 AWG (Aluminum/Copper)
    Short Description:
    240 VAC, 20 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip
    Catalog:
    Eaton_36620_V1T1_85_CAT.pdf
    Data Sheet:
    Eaton_41028_1-6_DATA.pdf
    TS PIK:
    21493895
    Current Rating:
    20 A
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Country of Origin:
    Dominican Republic
    MSRP $337.57
    Surplus $109.20
    Qty in Cart: 0
    Price:
    MSRP $337.57
    Surplus $109.20
  • Contact Us For Quote
    Eaton CHP3100 Miniature Circuit Breakers (MCBs)

    Eaton CHP3100 Miniature Circuit Breakers (MCBs)

    MSRP $1,311.00
    Surplus $353.97
    SKU:  C15-19389 Brand:  Eaton MPN:  CHP3100 UPC:  78211392395 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19389
    Type:
    Thermal Magnetic
    Voltage Rating:
    240 VAC
    Short Description:
    240 VAC, 100 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Current Rating:
    100 A
    Used On:
    CH Series Loadcenter
    Approval:
    UL 489
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Series:
    CHP
    Number of Poles:
    3
    Interrupting Rating:
    10 kA at 240 VAC
    Mounting:
    Plug-On
    Terminal Type:
    Line Lug
    Wire Size:
    10 to 1/0 AWG (Copper/Aluminum)
    MSRP $1,311.00
    Surplus $353.97
    Qty in Cart: 0
    Price:
    MSRP $1,311.00
    Surplus $353.97
  • Contact Us For Quote
    Eaton CHP315 Miniature Circuit Breakers (MCBs)

    Eaton CHP315 Miniature Circuit Breakers (MCBs)

    MSRP $1,012.00
    Surplus $273.24
    SKU:  C15-19381 Brand:  Eaton MPN:  CHP315 UPC:  78211392383 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19381
    Series:
    CHP
    Short Description:
    240 VAC, 15 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Interrupting Rating:
    10 kA at 240 VAC
    Number of Poles:
    3
    Type:
    Thermal Magnetic
    Voltage Rating:
    240 VAC
    Current Rating:
    15 A
    Used On:
    CH Series Loadcenter
    Wire Size:
    14 to 6 AWG (Copper/Aluminum)
    Mounting:
    Plug-On
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Terminal Type:
    Line Lug
    Approval:
    UL 489
    MSRP $1,012.00
    Surplus $273.24
    Qty in Cart: 0
    Price:
    MSRP $1,012.00
    Surplus $273.24
  • Eaton CHP320 Miniature Circuit Breakers (MCBs) CH 3P 20A 240V 50/60Hz 3Ph Eaton CHP320 Miniature Circuit Breakers (MCBs) CH 3P 20A 240V 50/60Hz 3Ph

    Eaton CHP320 Miniature Circuit Breakers (MCBs) CH 3P 20A 240V 50/60Hz 3Ph

    MSRP $1,107.00
    Surplus $137.11
    Eaton CHP320 Miniature Circuit Breakers (MCBs) CH 3P 20A 240V 50/60Hz 3Ph​ ARCA SKU:  C15-1568 Brand:  Eaton MPN:  CHP320 UPC:  621037071445 Shipping Weight:  0.86 Shipping Height:  3.38 In...
    SKU:
    C15-1568
    Approval:
    UL 489
    Amps:
    20 A
    Interrupting Rating:
    10 kA at 240 VAC
    Mounting:
    Plug-On
    Poles:
    3
    Terminal Type:
    Line Lug
    Type:
    Thermal Magnetic
    Used On:
    CH Series Loadcenter
    Volts:
    240 VAC
    Gauge:
    14 to 6 AWG (Copper/Aluminum)
    Short Description:
    240 VAC, 20 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Series:
    CH
    Specification/Technical:
    Eaton_47679_1_2_SPEC.pdf
    Voltage Rating:
    240 VAC
    Wire Size:
    14 to 6 AWG (Copper/Aluminum)
    Number of Poles:
    3
    Current Rating:
    20 A
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Country of Origin:
    Dominican Republic
    MSRP $1,107.00
    Surplus $137.11
    Qty in Cart: 0
    Price:
    MSRP $1,107.00
    Surplus $137.11
  • Contact Us For Quote
    Eaton CHP330 Miniature Circuit Breakers (MCBs)

    Eaton CHP330 Miniature Circuit Breakers (MCBs)

    MSRP $1,012.00
    Surplus $273.24
    SKU:  C15-19382 Brand:  Eaton MPN:  CHP330 UPC:  78211392386 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19382
    Series:
    CHP
    Number of Poles:
    3
    Short Description:
    240 VAC, 30 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Interrupting Rating:
    10 kA at 240 VAC
    Terminal Type:
    Line Lug
    Voltage Rating:
    240 VAC
    Type:
    Thermal Magnetic
    Mounting:
    Plug-On
    Current Rating:
    30 A
    Wire Size:
    14 to 6 AWG (Copper/Aluminum)
    Used On:
    CH Series Loadcenter
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Approval:
    UL 489
    MSRP $1,012.00
    Surplus $273.24
    Qty in Cart: 0
    Price:
    MSRP $1,012.00
    Surplus $273.24
  • Contact Us For Quote
    Eaton CHP340 Miniature Circuit Breakers (MCBs)

    Eaton CHP340 Miniature Circuit Breakers (MCBs)

    MSRP $989.00
    Surplus $267.03
    SKU:  C15-19384 Brand:  Eaton MPN:  CHP340 UPC:  78211392387 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19384
    Type:
    Thermal Magnetic
    Current Rating:
    40 A
    Short Description:
    240 VAC, 40 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Voltage Rating:
    240 VAC
    Series:
    CHP
    Number of Poles:
    3
    Wire Size:
    10 to 1/0 AWG (Copper/Aluminum)
    Interrupting Rating:
    10 kA at 240 VAC
    Used On:
    CH Series Loadcenter
    Terminal Type:
    Line Lug
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Mounting:
    Plug-On
    Approval:
    UL 489
    MSRP $989.00
    Surplus $267.03
    Qty in Cart: 0
    Price:
    MSRP $989.00
    Surplus $267.03
  • Contact Us For Quote
    Eaton CHP350 Miniature Circuit Breakers (MCBs)

    Eaton CHP350 Miniature Circuit Breakers (MCBs)

    MSRP $989.00
    Surplus $267.03
    SKU:  C15-19386 Brand:  Eaton MPN:  CHP350 UPC:  78211392390 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19386
    Number of Poles:
    3
    Interrupting Rating:
    10 kA at 240 VAC
    Short Description:
    240 VAC, 50 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Wire Size:
    10 to 1/0 AWG (Copper/Aluminum)
    Current Rating:
    50 A
    Voltage Rating:
    240 VAC
    Series:
    CHP
    Mounting:
    Plug-On
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Type:
    Thermal Magnetic
    Terminal Type:
    Line Lug
    Used On:
    CH Series Loadcenter
    Approval:
    UL 489
    MSRP $989.00
    Surplus $267.03
    Qty in Cart: 0
    Price:
    MSRP $989.00
    Surplus $267.03
  • Contact Us For Quote
    Eaton CHP360 Miniature Circuit Breakers (MCBs)

    Eaton CHP360 Miniature Circuit Breakers (MCBs)

    MSRP $1,012.00
    Surplus $273.24
    SKU:  C15-19387 Brand:  Eaton MPN:  CHP360 UPC:  78211392391 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19387
    Short Description:
    240 VAC, 60 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Interrupting Rating:
    10 kA at 240 VAC
    Type:
    Thermal Magnetic
    Number of Poles:
    3
    Series:
    CHP
    Terminal Type:
    Line Lug
    Mounting:
    Plug-On
    Voltage Rating:
    240 VAC
    Current Rating:
    60 A
    Used On:
    CH Series Loadcenter
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Approval:
    UL 489
    Wire Size:
    10 to 1/0 AWG (Copper/Aluminum)
    MSRP $1,012.00
    Surplus $273.24
    Qty in Cart: 0
    Price:
    MSRP $1,012.00
    Surplus $273.24
  • Contact Us For Quote
    Eaton CHP370 Miniature Circuit Breakers (MCBs)

    Eaton CHP370 Miniature Circuit Breakers (MCBs)

    MSRP $1,253.00
    Surplus $338.31
    SKU:  C15-19388 Brand:  Eaton MPN:  CHP370 UPC:  78211489078 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-19388
    Short Description:
    240 VAC, 70 A, 3-Pole, 10 kA, Thermal Magnetic, Circuit Breaker
    Type:
    Thermal Magnetic
    Series:
    CHP
    Used On:
    CH Series Loadcenter
    Current Rating:
    70 A
    Catalog:
    Eaton_00001_V1T1_41_CAT.pdf
    Wire Size:
    10 to 1/0 AWG (Copper/Aluminum)
    Interrupting Rating:
    10 kA at 240 VAC
    Terminal Type:
    Line Lug
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Mounting:
    Plug-On
    Approval:
    UL 489
    MSRP $1,253.00
    Surplus $338.31
    Qty in Cart: 0
    Price:
    MSRP $1,253.00
    Surplus $338.31

Adding your products to cart

Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.