Due to our relocation, shipments may experience delays. Contact your sales rep for details and updates.

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
    Sensata Technologies Airpax IELHR11-1-62-15.0-91-V Miniature Circuit Breakers (MCBs) 2A 250VAC Sensata Technologies Airpax IELHR11-1-62-15.0-91-V Miniature Circuit Breakers (MCBs) 2A 250VAC

    Sensata Technologies Airpax IELHR11-1-62-15.0-91-V Miniature Circuit Breakers (MCBs) 2A 250VAC

    MSRP $155.00
    Surplus $62.00
    Sensata Technologies Airpax IELHR11-1-62-15.0-91-V Miniature Circuit Breakers (MCBs) 2A 250VAC​ ARCA SKU:  C15-4440 Brand:  Sensata Technologies Airpax MPN:  IELHR11-1-62-15.0-91-V UPC:   Shipping...
    SKU:
    C15-4440
    Volts:
    250 VAC
    Amps:
    2 A
    Series:
    IELHR11-1-62-15.0-91-V
    MSRP $155.00
    Surplus $62.00
    Qty in Cart: 0
    Price:
    MSRP $155.00
    Surplus $62.00
  • Contact Us For Quote
    Sensata Technologies Airpax IELR1-1-62-15 Miniature Circuit Breakers (MCBs) 15A Sensata Technologies Airpax IELR1-1-62-15 Miniature Circuit Breakers (MCBs) 15A

    Sensata Technologies Airpax IELR1-1-62-15 Miniature Circuit Breakers (MCBs) 15A

    MSRP $75.00
    Surplus $19.45
    Sensata Technologies Airpax IELR1-1-62-15 Miniature Circuit Breakers (MCBs) 15A​ ARCA SKU:  C15-4442 Brand:  Sensata Technologies Airpax MPN:  IELR1-1-62-15 UPC:   Shipping Weight:  0.25 Shipping...
    SKU:
    C15-4442
    Series:
    IELR1-1-62-15
    Amps:
    15 A
    MSRP $75.00
    Surplus $19.45
    Qty in Cart: 0
    Price:
    MSRP $75.00
    Surplus $19.45
  • Contact Us For Quote
    Sensata Technologies Airpax IELR1-1-62-2.00-91 Miniature Circuit Breakers (MCBs) 2A 250V Sensata Technologies Airpax IELR1-1-62-2.00-91 Miniature Circuit Breakers (MCBs) 2A 250V

    Sensata Technologies Airpax IELR1-1-62-2.00-91 Miniature Circuit Breakers (MCBs) 2A 250V

    MSRP $75.00
    Surplus $24.48
    Sensata Technologies Airpax IELR1-1-62-2.00-91 Miniature Circuit Breakers (MCBs) 2A 250V​ ARCA SKU:  C15-4441 Brand:  Sensata Technologies Airpax MPN:  IELR1-1-62-2.00-91 UPC:   Shipping Weight:  0...
    SKU:
    C15-4441
    Volts:
    250 V
    Amps:
    2 A
    Series:
    IELR1-1-62-2.00-91
    MSRP $75.00
    Surplus $24.48
    Qty in Cart: 0
    Price:
    MSRP $75.00
    Surplus $24.48
  • Contact Us For Quote
    Siemens 5SX2-1 Miniature Circuit Breakers (MCBs) 1P 50/60Hz 1Ph Siemens 5SX2-1 Miniature Circuit Breakers (MCBs) 1P 50/60Hz 1Ph

    Siemens 5SX2-1 Miniature Circuit Breakers (MCBs) 1P 50/60Hz 1Ph

    MSRP $120.00
    Surplus $34.01
    Siemens 5SX2-1 Miniature Circuit Breakers (MCBs) 1P 50/60Hz 1Ph​ ARCA SKU:  C15-4689 Brand:  Siemens MPN:  5SX2-1 UPC:   Shipping Weight:  0.35 Shipping Height:  1.00 In. Shipping...
    SKU:
    C15-4689
    Poles:
    1
    Frequency Rating:
    50/60 Hz
    MSRP $120.00
    Surplus $34.01
    Qty in Cart: 0
    Price:
    MSRP $120.00
    Surplus $34.01
  • Siemens 5SX2106-7 Miniature Circuit Breakers (MCBs) EA Siemens 5SX2106-7 Miniature Circuit Breakers (MCBs) EA

    Siemens 5SX2106-7 Miniature Circuit Breakers (MCBs) EA

    MSRP $125.00
    Surplus $27.05
    Siemens 5SX2106-7 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU:  C15-8989 Brand:  Siemens MPN:  5SX2106-7 UPC:   Shipping Weight:  0.30 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-8989
    Short Description:
    230/400 VAC, 6 A, 6 kA, 1-Pole, 55 MM Mounting Depth, Curve C, Miniature Circuit Breaker
    Voltage Rating:
    230/400 V
    Catalog:
    SiemensAG_01748_12_4_CAT.pdf
    Number of Poles:
    1
    Current Rating:
    6 A
    Series:
    5SX2
    Interrupting Rating:
    6 kA
    Country of Origin:
    Mexico
    MSRP $125.00
    Surplus $27.05
    Qty in Cart: 0
    Price:
    MSRP $125.00
    Surplus $27.05
  • Siemens B115 Miniature Circuit Breakers (MCBs)

    Siemens B115 Miniature Circuit Breakers (MCBs)

    MSRP $89.00
    Surplus $9.45
    Siemens B115 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-6105 Brand:  Siemens MPN:  B115 UPC:  78364326341 Shipping Weight:  1.00 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-6105
    TS PIK:
    21368372
    Number of Poles:
    1
    Short Description:
    120 VAC, 15 A, 10 kA, 1-Pole, Bolt-On Mount, Molded Case, Branch, Panelboard Circuit Breaker
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Interrupting Rating:
    10 kA
    Voltage Rating:
    120 VAC
    Current Rating:
    15 A
    Data Sheet:
    SiemensAG_05158_1_DATA.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Installation:
    Bolt-On
    Approval:
    UL, CSA
    Used On:
    Panelboard
    Country of Origin:
    Mexico
    MSRP $89.00
    Surplus $9.45
    Qty in Cart: 0
    Price:
    MSRP $89.00
    Surplus $9.45
  • Siemens B115 Miniature Circuit Breakers (MCBs) EA

    Siemens B115 Miniature Circuit Breakers (MCBs) EA

    MSRP $89.00
    Surplus $6.28
    Siemens B115 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU:  C15-9618 Brand:  Siemens MPN:  B115 UPC:  78364326341 Shipping Weight:  0.30 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-9618
    TS PIK:
    21368372
    Interrupting Rating:
    10 kA
    Current Rating:
    15 A
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Number of Poles:
    1
    Short Description:
    120 VAC, 15 A, 10 kA, 1-Pole, Bolt-On Mount, Molded Case, Branch, Panelboard Circuit Breaker
    Data Sheet:
    SiemensAG_05158_1_DATA.pdf
    Used On:
    Panelboard
    Voltage Rating:
    120 VAC
    Mounting:
    Bolt-On
    Installation:
    Bolt-On
    Approval:
    UL, CSA
    Country of Origin:
    MEX
    MSRP $89.00
    Surplus $6.28
    Qty in Cart: 0
    Price:
    MSRP $89.00
    Surplus $6.28
  • Siemens B11500S01 Miniature Circuit Breakers (MCBs)

    Siemens B11500S01 Miniature Circuit Breakers (MCBs)

    MSRP $220.00
    Surplus $146.30
    SKU:  C15-10300 Brand:  Siemens MPN:  B11500S01 UPC:  78364326822 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10300
    TS PIK:
    115554943
    Approval:
    UL 489, CSA C22.2
    Number of Poles:
    1
    Current Rating:
    15 A
    Short Description:
    120 VAC, 15 A, 10 kA, 1-Pole, Bolt-On Mount, Molded Case, Shunt Trip, Panelboard Circuit Breaker
    Country of Origin:
    MEX
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Data Sheet:
    SiemensAG_05159_1_DATA.pdf
    Application:
    Lighting, Distribution
    Voltage Rating:
    120 VAC at 50/60 Hz (UL)
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Installation:
    Bolt-On
    Interrupting Rating:
    10 kA at 120 VAC (UL)
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    MSRP $220.00
    Surplus $146.30
    Qty in Cart: 0
    Price:
    MSRP $220.00
    Surplus $146.30
  • Contact Us For Quote
    Siemens B115DF Miniature Circuit Breakers (MCBs)

    Siemens B115DF Miniature Circuit Breakers (MCBs)

    MSRP $229.00
    Surplus $61.83
    SKU:  C15-15382 Brand:  Siemens MPN:  B115DF UPC:  88762181720 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-15382
    Country of Origin:
    PHL
    Short Description:
    BRKR BFGA2 AFCI/GFCI 1P 120V 15A 10kA
    MSRP $229.00
    Surplus $61.83
    Qty in Cart: 0
    Price:
    MSRP $229.00
    Surplus $61.83
  • Contact Us For Quote
    Siemens B115H Miniature Circuit Breakers (MCBs) 15A

    Siemens B115H Miniature Circuit Breakers (MCBs) 15A

    MSRP $165.00
    Surplus $26.60
    SKU:  C15-6209 Brand:  Siemens MPN:  B115H UPC:  78364326381 Shipping Weight:  1.00 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  1.00 In...
    SKU:
    C15-6209
    TS PIK:
    115370793
    Short Description:
    120 VAC, 15 A, 22 kA, 1-Pole, Bolt-On Mount, Molded Case, Branch, Panelboard Circuit Breaker
    Voltage Rating:
    120 VAC
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Interrupting Rating:
    22 kA at 120 VAC (UL)
    Number of Poles:
    1
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Data Sheet:
    SiemensAG_05160_1_DATA.pdf
    Current Rating:
    15 A
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Type:
    Molded Case, Thermal and Fixed Magnetic, Branch
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    Application:
    Lighting, Distribution
    Installation:
    Bolt-On
    MSRP $165.00
    Surplus $26.60
    Qty in Cart: 0
    Price:
    MSRP $165.00
    Surplus $26.60
  • Contact Us For Quote
    Siemens B115HH Miniature Circuit Breakers (MCBs)

    Siemens B115HH Miniature Circuit Breakers (MCBs)

    MSRP $111.21
    Surplus $0.00
    SKU:  C15-18951 Brand:  Siemens MPN:  B115HH UPC:  78364326408 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-18951
    Data Sheet:
    SiemensAG_05161_1_DATA.pdf
    Current Rating:
    15 A
    Interrupting Rating:
    65 kA at 120 VAC (UL)
    Approval:
    UL 489, CSA C22.2
    Voltage Rating:
    120 VAC at 50/60 Hz (UL)
    Installation:
    Bolt-On
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Application:
    Lighting, Distribution
    Installation/Operator:
    SiemensAG_00215_INST.pdf
    Short Description:
    120 VAC, 15 A, 65 kA, 1-Pole, Bolt-On Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
    Country of Origin:
    MEX
    Number of Poles:
    1
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    MSRP $111.21
    Surplus $0.00
    Qty in Cart: 0
    Price:
    MSRP $111.21
    Surplus $0.00
  • Contact Us For Quote
    Siemens B115HID Miniature Circuit Breakers (MCBs)

    Siemens B115HID Miniature Circuit Breakers (MCBs)

    MSRP $86.00
    Surplus $23.22
    SKU:  C15-15383 Brand:  Siemens MPN:  B115HID UPC:  78364327470 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-15383
    Country of Origin:
    MEX
    Short Description:
    BREAKER 15A 1P 120V 10K HID BL BOLT-ON
    MSRP $86.00
    Surplus $23.22
    Qty in Cart: 0
    Price:
    MSRP $86.00
    Surplus $23.22
  • Siemens B12000S01 Miniature Circuit Breakers (MCBs) B 1P 20A 120/240V 50/60Hz 1Ph Siemens B12000S01 Miniature Circuit Breakers (MCBs) B 1P 20A 120/240V 50/60Hz 1Ph

    Siemens B12000S01 Miniature Circuit Breakers (MCBs) B 1P 20A 120/240V 50/60Hz 1Ph

    MSRP $332.00
    Surplus $159.60
    Siemens B12000S01 Miniature Circuit Breakers (MCBs) B 1P 20A 120/240V 50/60Hz 1Ph​ ARCA SKU:  C15-3108 Brand:  Siemens MPN:  B12000S01 UPC:  783643268234 Shipping Weight:  0.70 Shipping...
    SKU:
    C15-3108
    Type:
    Shunt Trip
    Approval:
    UL 489
    Size:
    4.4 Inch Width x 5.5 Inch Depth x 3.8 Inch Height
    Volts:
    120 VAC
    Amps:
    32 A
    Poles:
    1
    Interrupting Rating:
    10 kA
    Terminal Type:
    Bolt-On
    Frame Type:
    BL
    Maximum AC Voltage Rating:
    120 V
    Short Description:
    120 VAC, 20 A, 10 kA, 1-Pole, Bolt-On Mount, Factory Installed, Shunt Trip
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Data Sheet:
    SiemensAG_05162_1_DATA.pdf
    Voltage Rating:
    120 VAC
    Number of Poles:
    1
    Country of Origin:
    MEX
    Current Rating:
    20 A
    MSRP $332.00
    Surplus $159.60
    Qty in Cart: 0
    Price:
    MSRP $332.00
    Surplus $159.60
  • Contact Us For Quote
    Siemens B120AF Miniature Circuit Breakers (MCBs)

    Siemens B120AF Miniature Circuit Breakers (MCBs)

    MSRP $177.00
    Surplus $140.00
    SKU:  C15-8491 Brand:  Siemens MPN:  B120AF UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-8491
    Short Description:
    120 VAC, 20 A, 10 kA Interrupt Rating, 1-Pole, BAF Frame, Bolt-On Mount, Arc Fault Circuit Interrupter
    Interrupting Rating:
    10 kA
    Voltage Rating:
    120 VAC
    Approval:
    UL 489, CSA C22.2
    Used On:
    P1/P2/P3/P4/P5 Panelboard, Loadcenter
    Terminal Type:
    Load Lug
    Mounting:
    Bolt-On
    Current Rating:
    20 A
    Poles:
    1
    Wire Size:
    14 to 12 AWG (Copper), 12 to 10 AWG (Aluminum)
    Catalog:
    SIEMNSE47930_7_6_7_29.pdf
    Data Sheet:
    SIEMNSE79217_1.pdf
    Construction Feature:
    Branch-Feeder
    Application:
    Lighting, Distribution
    MSRP $177.00
    Surplus $140.00
    Qty in Cart: 0
    Price:
    MSRP $177.00
    Surplus $140.00
  • Contact Us For Quote
    Siemens B120AFH Miniature Circuit Breakers (MCBs)

    Siemens B120AFH Miniature Circuit Breakers (MCBs)

    MSRP $215.28
    Surplus $58.12
    SKU:  C15-15384 Brand:  Siemens MPN:  B120AFH UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-15384
    Short Description:
    120 VAC, 20 A, 22 kA Interrupt Rating, 1-Pole, BAFH Frame, Bolt-On Mount, Arc Fault Circuit Interrupter
    Mounting:
    Bolt-On
    Poles:
    1
    Current Rating:
    20 A
    Interrupting Rating:
    22 kA
    Data Sheet:
    SIEMNSE79218_1.pdf
    Voltage Rating:
    120 VAC
    Wire Size:
    14 to 12 AWG (Copper), 12 to 10 AWG (Aluminum)
    Terminal Type:
    Load Lug
    Approval:
    UL 489, CSA C22.2
    Construction Feature:
    Branch-Feeder
    Used On:
    P1/P2/P3/P4/P5 Panelboard, Loadcenter
    Catalog:
    SIEMNSE47930_7_6_7_29.pdf
    Application:
    Lighting, Distribution
    MSRP $215.28
    Surplus $58.12
    Qty in Cart: 0
    Price:
    MSRP $215.28
    Surplus $58.12
  • Contact Us For Quote
    Siemens B120DF Miniature Circuit Breakers (MCBs)

    Siemens B120DF Miniature Circuit Breakers (MCBs)

    MSRP $200.70
    Surplus $0.00
    SKU:  C15-18952 Brand:  Siemens MPN:  B120DF UPC:  88762181722 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-18952
    Current Rating:
    20 A
    Voltage Rating:
    120 V AC
    Type:
    Molded Case
    Number of Poles:
    1
    Size:
    3.5 Inch Width x 1 Inch Depth x 5 Inch Height
    Approval:
    UL 1699/943
    Used On:
    Panelboard
    Country of Origin:
    PHL
    Short Description:
    120 VAC, 20 A, 10 kA Interrupt, 1-Pole, Bolt-On Mount, Dual Function Circuit Breaker
    Installation/Operator:
    SiemensAG_00692_INST.pdf
    Interrupting Rating:
    10 kA
    Mounting:
    Bolt-On
    MSRP $200.70
    Surplus $0.00
    Qty in Cart: 0
    Price:
    MSRP $200.70
    Surplus $0.00
  • Contact Us For Quote
    Siemens B120H00S01 Miniature Circuit Breakers (MCBs)

    Siemens B120H00S01 Miniature Circuit Breakers (MCBs)

    MSRP $554.00
    Surplus $198.49
    SKU:  C15-6106 Brand:  Siemens MPN:  B120H00S01 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-6106
    Interrupting Rating:
    22 kA at 120 VAC (UL)
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Voltage Rating:
    120 VAC at 50/60 Hz (UL)
    Catalog:
    SiemensAG_00564_7_29_CAT.pdf
    Number of Poles:
    1
    Current Rating:
    20 A
    Data Sheet:
    SiemensAG_05165_1_DATA.pdf
    Type:
    Molded Case, Thermal and Fixed Magnetic
    Short Description:
    120 VAC, 20 A, 22 kA, 1-Pole, Bolt-On Mount, Molded Case, Shunt Trip, Panelboard Circuit Breaker
    Country of Origin:
    Mexico
    TS PIK:
    115271076
    Approval:
    UL 489, CSA C22.2
    Installation:
    Bolt-On
    Application:
    Lighting, Distribution
    MSRP $554.00
    Surplus $198.49
    Qty in Cart: 0
    Price:
    MSRP $554.00
    Surplus $198.49
  • Siemens B120HH Miniature Circuit Breakers (MCBs) 20A

    Siemens B120HH Miniature Circuit Breakers (MCBs) 20A

    MSRP $285.00
    Surplus $46.26
    Siemens B120HH Miniature Circuit Breakers (MCBs) 20A​ ARCA SKU:  C15-1456 Brand:  Siemens MPN:  B120HH UPC:  78364326409 Shipping Weight:  0.30 lbs. Shipping Height:  3.00 In. Shipping...
    SKU:
    C15-1456
    Type:
    Molded Case
    Type:
    Thermal and Fixed Magnetic
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Volts:
    120 VAC at 50/60 Hz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    1
    Interrupting Rating:
    65 kA at 120 VAC (UL)
    Application:
    Lighting
    Application:
    Distribution
    Installation:
    Bolt-On
    Short Description:
    120 VAC, 20 A, 65 kA, 1-Pole, Bolt-On Mount, Molded Case, Thermal Magnetic
    Catalog:
    SiemensAG_00876_5_18_5_19_CAT.pdf
    Data Sheet:
    SiemensAG_01598_1_DATA.pdf
    TS PIK:
    21368427
    Current Rating:
    20 A
    Voltage Rating:
    120 VAC
    Number of Poles:
    1
    Mounting:
    Bolt-On
    Series:
    B
    Country of Origin:
    Mexico
    MSRP $285.00
    Surplus $46.26
    Qty in Cart: 0
    Price:
    MSRP $285.00
    Surplus $46.26

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.