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
  • Contact Us For Quote
    Eaton CH330 Miniature Circuit Breakers (MCBs) 3P 30A 240V EA Eaton CH330 Miniature Circuit Breakers (MCBs) 3P 30A 240V EA

    Eaton CH330 Miniature Circuit Breakers (MCBs) 3P 30A 240V EA

    MSRP $376.54
    Surplus $143.64
    Eaton CH330 Miniature Circuit Breakers (MCBs) 3P 30A 240V EA​ ARCA SKU:  C15-2424 Brand:  Eaton MPN:  CH330 UPC:  782113102054 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-2424
    Series:
    CH
    Type:
    Thermal Magnetic
    Type:
    Common Trip
    Approval:
    UL 489
    Approval:
    CSA
    Volts:
    240 VAC
    Amps:
    32 A
    Used On:
    CH Series Load Center
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Wire Size:
    (1) 14 to 6 AWG (Copper/Aluminum)
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Thermal Magnetic
    Catalog:
    Eaton_36620_V1T1_36_V1T1_37_CAT.pdf
    Current Rating:
    30 A
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Country of Origin:
    Dominican Republic
    MSRP $376.54
    Surplus $143.64
    Qty in Cart: 0
    Price:
    MSRP $376.54
    Surplus $143.64
  • Eaton BAB3030HS Miniature Circuit Breakers (MCBs) BA 3P 30A 120/240V 50/60Hz 3Ph EA Eaton BAB3030HS Miniature Circuit Breakers (MCBs) BA 3P 30A 120/240V 50/60Hz 3Ph EA

    Eaton BAB3030HS Miniature Circuit Breakers (MCBs) BA 3P 30A 120/240V 50/60Hz 3Ph EA

    MSRP $860.84
    Surplus $172.29
    SKU:  C15-1090 Brand:  Eaton MPN:  BAB3030HS UPC:  786679509654 Shipping Weight:  1.25 lbs. Shipping Height:  4.00 In. Shipping Length:  4.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-1090
    TS PIK:
    107004135
    Current Rating:
    30 A
    Wire Size:
    14 to 4 AWG Copper/Aluminum (Standard Load)
    Type:
    Thermal Magnetic, Non-Interchangeable Trip, Miniature
    Catalog:
    Eaton_03771_V4T1_11_V4T1_12_V4T1_45_CAT.pdf
    Size:
    3.7 Inch Width x 4 Inch Depth x 3.5 Inch Height
    Series:
    BAB
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Shunt Trip, Thermal Magnetic, Miniature, Circuit Breaker
    Mounting:
    Bolt-On
    Terminal Type:
    Steel Box Lug Standard Load
    Interrupting Rating:
    10000 A at 240 VAC
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Country of Origin:
    Dominican Republic
    MSRP $860.84
    Surplus $172.29
    Qty in Cart: 0
    Price:
    MSRP $860.84
    Surplus $172.29
  • Contact Us For Quote
    Eaton BAB3030H Miniature Circuit Breakers (MCBs) 3P 30A 240V EA Eaton BAB3030H Miniature Circuit Breakers (MCBs) 3P 30A 240V EA

    Eaton BAB3030H Miniature Circuit Breakers (MCBs) 3P 30A 240V EA

    MSRP $462.43
    Surplus $148.96
    SKU:  C15-1089 Brand:  Eaton MPN:  BAB3030H UPC:  78667930330 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-1089
    Series:
    BAB
    Type:
    Thermal Magnetic
    Approval:
    UL 489
    Approval:
    CSA
    Volts:
    240 VAC
    Amps:
    32 A
    Poles:
    3
    Mounting:
    Bolt-On
    Interrupting Rating:
    10 kA at 240 VAC
    Terminal Type:
    Extended Tang Line
    Terminal Type:
    Box Lug Load
    Wire Size:
    14 to 4 AWG Copper/Aluminum (Load)
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
    Catalog:
    Eaton_03771_V4T1_3_V4T1_11_V4T1_12_CAT.pdf
    TS PIK:
    21508708
    Number of Poles:
    3
    Current Rating:
    30 A
    Voltage Rating:
    240 VAC
    Country of Origin:
    Dominican Republic
    MSRP $462.43
    Surplus $148.96
    Qty in Cart: 0
    Price:
    MSRP $462.43
    Surplus $148.96
  • Crouse-Hinds BAB3030H Miniature Circuit Breakers (MCBs) 3P 30A Crouse-Hinds BAB3030H Miniature Circuit Breakers (MCBs) 3P 30A

    Crouse-Hinds BAB3030H Miniature Circuit Breakers (MCBs) 3P 30A

    MSRP $462.43
    Surplus $121.03
    Crouse-Hinds BAB3030H Miniature Circuit Breakers (MCBs) 3P 30A​ ARCA SKU:  C15-5645 Brand:  Crouse-Hinds MPN:  BAB3030H UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In...
    SKU:
    C15-5645
    TS PIK:
    21508708
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
    Mounting:
    Bolt-On
    Type:
    Thermal Magnetic
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Terminal Type:
    Extended Tang Line, Box Lug Load
    Current Rating:
    30 A
    Interrupting Rating:
    10 kA at 240 VAC
    Series:
    BAB
    Wire Size:
    14 to 4 AWG Copper/Aluminum (Load)
    Catalog:
    Eaton_03771_V4T1_3_V4T1_11_V4T1_12_CAT.pdf
    Country of Origin:
    Dominican Republic
    MSRP $462.43
    Surplus $121.03
    Qty in Cart: 0
    Price:
    MSRP $462.43
    Surplus $121.03
  • Siemens BQ3B030 Miniature Circuit Breakers (MCBs) 3P 30A 240V Siemens BQ3B030 Miniature Circuit Breakers (MCBs) 3P 30A 240V

    Siemens BQ3B030 Miniature Circuit Breakers (MCBs) 3P 30A 240V

    MSRP $627.00
    Surplus $123.18
    Siemens BQ3B030 Miniature Circuit Breakers (MCBs) 3P 30A 240V​ ARCA SKU:  C15-1472 Brand:  Siemens MPN:  BQ3B030 UPC:  78364310260 Shipping Weight:  0.94 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-1472
    Series:
    BQ
    Type:
    Molded Case
    Type:
    Thermal Magnetic
    Volts:
    240 VAC
    Amps:
    32 A
    Poles:
    3
    Interrupting Rating:
    10 kA
    Application:
    General Purpose
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip
    Catalog:
    SiemensAG_01698_17_1_17_7_17_110_CAT.pdf
    TS PIK:
    21366196
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Data Sheet:
    SiemensAG_05390_1_DATA.pdf
    Current Rating:
    30 A
    Mounting:
    Bolt-On
    Country of Origin:
    Mexico
    MSRP $627.00
    Surplus $123.18
    Qty in Cart: 0
    Price:
    MSRP $627.00
    Surplus $123.18
  • Siemens B330 Miniature Circuit Breakers (MCBs) Siemens B330 Miniature Circuit Breakers (MCBs)

    Siemens B330 Miniature Circuit Breakers (MCBs)

    MSRP $622.00
    Surplus $148.32
    SKU:  C15-6229 Brand:  Siemens MPN:  B330 UPC:  78364326371 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  3.00 In...
    SKU:
    C15-6229
    Interrupting Rating:
    10 kA at 24 VAC
    Number of Poles:
    3
    Type:
    Molded Case, Thermal and Fixed Magnetic, Branch, Common Trip
    Current Rating:
    30 A
    Voltage Rating:
    240 VAC
    Short Description:
    240 VAC 50/60 Hz, 30 A, 10 kA, 3-Pole, BL Frame, Bolt-On, Molded Case, Thermal and Fixed Magnetic Trip, Common Trip, Panelboard Circuit Breaker
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Catalog:
    SiemensAG_01502_5_8_5_19_10_14_CAT.pdf
    Country of Origin:
    Mexico
    MSRP $622.00
    Surplus $148.32
    Qty in Cart: 0
    Price:
    MSRP $622.00
    Surplus $148.32
  • Eaton BR330 Miniature Circuit Breakers (MCBs) 3P 30A 120V EA Eaton BR330 Miniature Circuit Breakers (MCBs) 3P 30A 120V EA

    Eaton BR330 Miniature Circuit Breakers (MCBs) 3P 30A 120V EA

    MSRP $337.57
    Surplus $78.50
    Eaton BR330 Miniature Circuit Breakers (MCBs) 3P 30A 120V EA​ ARCA SKU:  C15-1256 Brand:  Eaton MPN:  BR330 UPC:  786676367806 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-1256
    Series:
    BR
    Type:
    Common Trip
    Type:
    Quadplex
    Approval:
    UL 489
    Volts:
    240 VAC
    Amps:
    32 A
    Used On:
    BR Series Load Center
    Poles:
    3
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Wire Size:
    14 to 4 AWG (Copper/Aluminum)
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic
    Catalog:
    Eaton_36620_V1T1_85_CAT.pdf
    TS PIK:
    21493896
    Current Rating:
    30 A
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Country of Origin:
    Dominican Republic
    MSRP $337.57
    Surplus $78.50
    Qty in Cart: 0
    Price:
    MSRP $337.57
    Surplus $78.50
  • Contact Us For Quote
    Eaton BR330ST Miniature Circuit Breakers (MCBs) BR 3P 30A 240V 50/60Hz 3Ph EA Shunt Trip Eaton BR330ST Miniature Circuit Breakers (MCBs) BR 3P 30A 240V 50/60Hz 3Ph EA Shunt Trip

    Eaton BR330ST Miniature Circuit Breakers (MCBs) BR 3P 30A 240V 50/60Hz 3Ph EA Shunt Trip

    MSRP $722.00
    Surplus $263.34
    Eaton BR330ST Miniature Circuit Breakers (MCBs) BR 3P 30A 240V 50/60Hz 3Ph EA Shunt Trip​ ARCA SKU:  C15-1257 Brand:  Eaton MPN:  BR330ST UPC:  786676003384 Shipping Weight:  1.30 Shipping...
    SKU:
    C15-1257
    Approval:
    UL 489
    Amps:
    30 A
    Interrupting Rating:
    10 kA
    Mounting:
    1-Inch Plug-On
    Poles:
    3
    Size:
    3 Inch Width x 3 Inch Depth x 3 Inch Height
    Terminal Type:
    Thermal Magnetic
    Type:
    Shunt Trip
    Used On:
    BR Load Center
    Volts:
    240 VAC
    Gauge:
    14 to 4 AWG Copper/Aluminum at 60/75 Deg C
    Short Description:
    240 VAC, 30 A, 10 kA Interrupt, 3-Pole, 14 to 4 AWG Copper/Aluminum Terminal, 1" Plug-On Mount, Common Trip, Thermal Magnetic, Type BR, Circuit Breaker with Shunt Trip (28 per Pack)
    Specification/Technical:
    EatonCorp_00331_1-3_SPEC.pdf
    Wire Size:
    14 to 4 AWG Copper/Aluminum at 60/75 Deg C
    Current Rating:
    30 A
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    MSRP $722.00
    Surplus $263.34
    Qty in Cart: 0
    Price:
    MSRP $722.00
    Surplus $263.34
  • Contact Us For Quote
    Crouse-Hinds BAB3030HS Miniature Circuit Breakers (MCBs)

    Crouse-Hinds BAB3030HS Miniature Circuit Breakers (MCBs)

    MSRP $860.84
    Surplus $365.18
    SKU:  C15-5646 Brand:  Crouse-Hinds MPN:  BAB3030HS UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-5646
    TS PIK:
    107004135
    Series:
    BAB
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Shunt Trip, Thermal Magnetic, Miniature, Circuit Breaker
    Mounting:
    Bolt-On
    Terminal Type:
    Steel Box Lug Standard Load
    Voltage Rating:
    240 VAC
    Current Rating:
    30 A
    Type:
    Thermal Magnetic, Non-Interchangeable Trip, Miniature
    Wire Size:
    14 to 4 AWG Copper/Aluminum (Standard Load)
    Interrupting Rating:
    10000 A at 240 VAC
    Number of Poles:
    3
    Size:
    3.7 Inch Width x 4 Inch Depth x 3.5 Inch Height
    Catalog:
    Eaton_03771_V4T1_11_V4T1_12_V4T1_45_CAT.pdf
    MSRP $860.84
    Surplus $365.18
    Qty in Cart: 0
    Price:
    MSRP $860.84
    Surplus $365.18
  • Contact Us For Quote
    Crouse-Hinds BR330 Miniature Circuit Breakers (MCBs)

    Crouse-Hinds BR330 Miniature Circuit Breakers (MCBs)

    MSRP $337.57
    Surplus $118.33
    Crouse-Hinds BR330 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-5666 Brand:  Crouse-Hinds MPN:  BR330 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-5666
    TS PIK:
    21493896
    Series:
    BR
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic, Circuit Breaker
    Type:
    Thermal Magnetic, Common Trip
    Voltage Rating:
    240 VAC
    Mounting:
    Plug-On
    Current Rating:
    30 A
    Interrupting Rating:
    10 kA
    Catalog:
    Eaton_36620_V1T1_85_CAT.pdf
    Number of Poles:
    3
    Used On:
    BR Series Load Center
    Wire Size:
    14 to 4 AWG (Copper/Aluminum)
    MSRP $337.57
    Surplus $118.33
    Qty in Cart: 0
    Price:
    MSRP $337.57
    Surplus $118.33
  • Contact Us For Quote
    Crouse-Hinds CH330 Miniature Circuit Breakers (MCBs)

    Crouse-Hinds CH330 Miniature Circuit Breakers (MCBs)

    MSRP $376.54
    Surplus $132.87
    SKU:  C15-5684 Brand:  Crouse-Hinds MPN:  CH330 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-5684
    TS PIK:
    531276
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Circuit Breaker
    Series:
    CH
    Used On:
    CH Series Load Center
    Interrupting Rating:
    10 kA
    Type:
    Thermal Magnetic, Common Trip
    Number of Poles:
    3
    Catalog:
    Eaton_36620_V1T1_36_V1T1_37_CAT.pdf
    Voltage Rating:
    240 VAC
    Wire Size:
    (1) 14 to 6 AWG (Copper/Aluminum)
    Mounting:
    Plug-On
    Current Rating:
    30 A
    MSRP $376.54
    Surplus $132.87
    Qty in Cart: 0
    Price:
    MSRP $376.54
    Surplus $132.87
  • Crouse-Hinds CHB330 Miniature Circuit Breakers (MCBs)

    Crouse-Hinds CHB330 Miniature Circuit Breakers (MCBs)

    MSRP $840.34
    Surplus $515.16
    SKU:  C15-5694 Brand:  Crouse-Hinds MPN:  CHB330 UPC:  78211311261 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-5694
    TS PIK:
    111010062
    Number of Poles:
    3
    Mounting:
    Bolt-On
    Used On:
    PB Series Panel board
    Current Rating:
    30 A
    Voltage Rating:
    240 VAC
    Type:
    Molded Case
    Short Description:
    240 VAC, 30 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Circuit Breaker
    Series:
    CHB
    MSRP $840.34
    Surplus $515.16
    Qty in Cart: 0
    Price:
    MSRP $840.34
    Surplus $515.16
  • Eaton QBHW3030H Miniature Circuit Breakers (MCBs) Eaton QBHW3030H Miniature Circuit Breakers (MCBs)

    Eaton QBHW3030H Miniature Circuit Breakers (MCBs)

    MSRP $689.77
    Surplus $52.89
    Eaton QBHW3030H Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-3348 Brand:  Eaton MPN:  QBHW3030H UPC:  78667939330 Shipping Weight:  1.10 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-3348
    Series:
    QBHW
    Type:
    Thermal Magnetic
    Approval:
    UL 489
    Approval:
    CSA
    Volts:
    240 VAC
    Amps:
    32 A
    Poles:
    3
    Mounting:
    Bolt-On
    Interrupting Rating:
    22000 A at 240 VAC
    Terminal Type:
    Extended Tang Line Terminal
    Terminal Type:
    Box Lug Load Terminal
    Wire Size:
    14 to 4 AWG Aluminum/Copper (Load)
    Short Description:
    240 VAC, 30 A, 22 kA, 3-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
    Catalog:
    Eaton_03771_V4T1_12_CAT.pdf
    TS PIK:
    21510607
    Current Rating:
    30 A
    Voltage Rating:
    240 VAC
    Number of Poles:
    3
    Country of Origin:
    Dominican Republic
    MSRP $689.77
    Surplus $52.89
    Qty in Cart: 0
    Price:
    MSRP $689.77
    Surplus $52.89
  • Eaton QCR3030HT Miniature Circuit Breakers (MCBs) Eaton QCR3030HT Miniature Circuit Breakers (MCBs)

    Eaton QCR3030HT Miniature Circuit Breakers (MCBs)

    MSRP $497.18
    Surplus $143.11
    SKU:  C15-3073 Brand:  Eaton MPN:  QCR3030HT UPC:  782114225714 Shipping Weight:  0.80 lbs. Shipping Height:  2.00 In. Shipping Length:  6.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-3073
    Type:
    Thermal Magnetic
    Approval:
    UL
    Approval:
    CSA
    Size:
    5.8 Inch Length x 3.7 Inch Width x 2.1 Inch Height
    Volts:
    240 VAC
    Amps:
    32 A
    Poles:
    3
    Mounting:
    DIN Rail Rear
    Interrupting Rating:
    10 kA
    Terminal Type:
    Ring/Spade Lug
    Short Description:
    240 VAC, 30 A, 3-Pole, 10 kA, Ring/Spade Lug Terminal, DIN Rail Rear Mount, Cable-In/Cable-Out, Thermal Magnetic
    Catalog:
    Eaton_03771_V4T1_23_V4T1_24_CAT.pdf
    TS PIK:
    115500142
    Number of Poles:
    3
    Voltage Rating:
    240 VAC
    Current Rating:
    30 A
    Country of Origin:
    United States
    MSRP $497.18
    Surplus $143.11
    Qty in Cart: 0
    Price:
    MSRP $497.18
    Surplus $143.11
  • Siemens BQ3B030H Miniature Circuit Breakers (MCBs) 3P 30A 240V

    Siemens BQ3B030H Miniature Circuit Breakers (MCBs) 3P 30A 240V

    MSRP $933.00
    Surplus $178.43
    Siemens BQ3B030H Miniature Circuit Breakers (MCBs) 3P 30A 240V​ ARCA SKU:  C15-6141 Brand:  Siemens MPN:  BQ3B030H UPC:  78364316169 Shipping Weight:  0.95 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-6141
    TS PIK:
    21368391
    Type:
    Molded Case, Low Vage, Common Trip, Circuit Protector
    Current Rating:
    30 A
    Terminal Type:
    Load Lug
    Size:
    3 Inch Width x 3 Inch Depth x 4 Inch Height
    Number of Poles:
    3
    Catalog:
    SiemensAG_09175_0_8_17_1_17_7_17_8_17_133_CAT.pdf
    Interrupting Rating:
    22 kA
    Data Sheet:
    SiemensAG_09561_1_2_DATA.pdf
    Voltage Rating:
    240 VAC
    Country of Origin:
    Mexico
    Short Description:
    BRKR BQH 3P 240V 30A 22K
    Approval:
    UL 489
    Maximum AC Voltage Rating:
    240 V
    MSRP $933.00
    Surplus $178.43
    Qty in Cart: 0
    Price:
    MSRP $933.00
    Surplus $178.43

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.