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
    Siemens BQ2B030 Miniature Circuit Breakers (MCBs) BQ 2P 30A 120/240VAC EA Siemens BQ2B030 Miniature Circuit Breakers (MCBs) BQ 2P 30A 120/240VAC EA

    Siemens BQ2B030 Miniature Circuit Breakers (MCBs) BQ 2P 30A 120/240VAC EA

    MSRP $192.50
    Surplus $29.25
    Siemens BQ2B030 Miniature Circuit Breakers (MCBs) BQ 2P 30A 120/240VAC EA​ ARCA SKU:  C15-3210 Brand:  Siemens MPN:  BQ2B030 UPC:  78364310242 Shipping Weight:  0.65 lbs. Shipping...
    SKU:
    C15-3210
    Series:
    BQ
    Type:
    Molded Case
    Type:
    Thermal and Fixed Magnetic Trip
    Type:
    Common Trip
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Size:
    2 Inch W x 3 Inch D x 3-3/4 Inch H
    Volts:
    120/240 VAC at 50/60 Hz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    2
    Mounting:
    Bolt-On
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Terminal Type:
    Load Lug
    Wire Size:
    14 to 6 AWG (Copper)
    Wire Size:
    12 to 6 AWG (Aluminum)
    Short Description:
    120/240 VAC, 30 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip
    Catalog:
    SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
    TS PIK:
    21366178
    Current Rating:
    30 A
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    2
    Country of Origin:
    Mexico
    MSRP $192.50
    Surplus $29.25
    Qty in Cart: 0
    Price:
    MSRP $192.50
    Surplus $29.25
  • Siemens BQ2B020 Miniature Circuit Breakers (MCBs) 2P 20A 120V EA Siemens BQ2B020 Miniature Circuit Breakers (MCBs) 2P 20A 120V EA

    Siemens BQ2B020 Miniature Circuit Breakers (MCBs) 2P 20A 120V EA

    MSRP $192.50
    Surplus $23.47
    Siemens BQ2B020 Miniature Circuit Breakers (MCBs) 2P 20A 120V EA​ ARCA SKU:  C15-3343 Brand:  Siemens MPN:  BQ2B020 UPC:  78364310241 Shipping Weight:  0.65 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-3343
    Series:
    BQ
    Type:
    Molded Case
    Type:
    Thermal and Fixed Magnetic Trip
    Type:
    Common Trip
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Size:
    2 Inch W x 3 Inch D x 3-3/4 Inch H
    Volts:
    120/240 VAC at 50/60 Hz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    2
    Mounting:
    Bolt-On
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Terminal Type:
    Load Lug
    Wire Size:
    14 to 10 AWG (Copper)
    Wire Size:
    12 to 10 AWG (Aluminum)
    Short Description:
    120/240 VAC, 20 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip
    Catalog:
    SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
    TS PIK:
    21366177
    Voltage Rating:
    120/240 VAC
    Number of Poles:
    2
    Current Rating:
    20 A
    Country of Origin:
    Mexico
    MSRP $192.50
    Surplus $23.47
    Qty in Cart: 0
    Price:
    MSRP $192.50
    Surplus $23.47
  • Contact Us For Quote
    Siemens BQ2B035 Miniature Circuit Breakers (MCBs)

    Siemens BQ2B035 Miniature Circuit Breakers (MCBs)

    MSRP $188.50
    Surplus $49.96
    SKU:  C15-6253 Brand:  Siemens MPN:  BQ2B035 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-6253
    TS PIK:
    21366647
    Short Description:
    120/240 VAC, 35 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
    Data Sheet:
    SiemensAG_05369_1_DATA.pdf
    Number of Poles:
    2
    Mounting:
    Bolt-On
    Voltage Rating:
    120/240 VAC at 50/60 Hz (UL)
    Current Rating:
    35 A
    Type:
    Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Terminal Type:
    Load Lug
    Wire Size:
    14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
    Size:
    2 Inch W x 3 Inch D x 3-3/4 Inch H
    Series:
    BQ
    Catalog:
    SiemensAG_01698_17_1_17_7_CAT.pdf
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Country of Origin:
    MEX
    Approval:
    UL 489, CSA C22.2
    MSRP $188.50
    Surplus $49.96
    Qty in Cart: 0
    Price:
    MSRP $188.50
    Surplus $49.96
  • Siemens BQ2B040 Miniature Circuit Breakers (MCBs) 2P 40A 120V

    Siemens BQ2B040 Miniature Circuit Breakers (MCBs) 2P 40A 120V

    MSRP $192.50
    Surplus $54.01
    Siemens BQ2B040 Miniature Circuit Breakers (MCBs) 2P 40A 120V​ ARCA SKU:  C15-2270 Brand:  Siemens MPN:  BQ2B040 UPC:  78364310243 Shipping Weight:  1.75 lbs. Shipping Height:  3.00 In...
    SKU:
    C15-2270
    TS PIK:
    21366179
    Voltage Rating:
    120/240 VAC at 50/60 Hz (UL)
    Type:
    Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
    Mounting:
    Bolt-On
    Series:
    BQ
    Terminal Type:
    Load Lug
    Short Description:
    120/240 VAC, 40 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
    Current Rating:
    40 A
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Catalog:
    SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Wire Size:
    8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
    Size:
    2 Inch W x 3 Inch D x 3-3/4 Inch H
    Number of Poles:
    2
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    MSRP $192.50
    Surplus $54.01
    Qty in Cart: 0
    Price:
    MSRP $192.50
    Surplus $54.01
  • Siemens BQ2B050 Miniature Circuit Breakers (MCBs)

    Siemens BQ2B050 Miniature Circuit Breakers (MCBs)

    MSRP $188.50
    Surplus $33.60
    Siemens BQ2B050 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  C15-6084 Brand:  Siemens MPN:  BQ2B050 UPC:  78364310244 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-6084
    TS PIK:
    21366180
    Series:
    BQ
    Voltage Rating:
    120/240 VAC at 50/60 Hz (UL)
    Current Rating:
    50 A
    Terminal Type:
    Load Lug
    Mounting:
    Bolt-On
    Wire Size:
    8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
    Size:
    2 Inch W x 3 Inch D x 3-3/4 Inch H
    Type:
    Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
    Short Description:
    120/240 VAC, 50 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
    Number of Poles:
    2
    Catalog:
    SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    MSRP $188.50
    Surplus $33.60
    Qty in Cart: 0
    Price:
    MSRP $188.50
    Surplus $33.60
  • Contact Us For Quote
    Siemens BQ2B060 Miniature Circuit Breakers (MCBs)

    Siemens BQ2B060 Miniature Circuit Breakers (MCBs)

    MSRP $53.96
    Surplus $17.55
    SKU:  C15-6233 Brand:  Siemens MPN:  BQ2B060 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-6233
    TS PIK:
    115902569
    Short Description:
    120/240 VAC, 60 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
    Type:
    Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
    Voltage Rating:
    120/240 VAC at 50/60 Hz (UL)
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Country of Origin:
    MEX
    Series:
    BQ
    Catalog:
    SiemensAG_00876_1_15_CAT.pdf
    Current Rating:
    60 A
    Wire Size:
    8 to 4 AWG (Copper), 8 to 2 AWG (Aluminum)
    Terminal Type:
    Load Lug
    Size:
    2 Inch W x 3 Inch D x 4 Inch H
    Approval:
    UL 489, CSA C22.2
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Number of Poles:
    2
    Mounting:
    Bolt-On
    MSRP $53.96
    Surplus $17.55
    Qty in Cart: 0
    Price:
    MSRP $53.96
    Surplus $17.55
  • Siemens BQ2B070 Miniature Circuit Breakers (MCBs) 2P 70A 120V Siemens BQ2B070 Miniature Circuit Breakers (MCBs) 2P 70A 120V

    Siemens BQ2B070 Miniature Circuit Breakers (MCBs) 2P 70A 120V

    MSRP $371.00
    Surplus $81.56
    Siemens BQ2B070 Miniature Circuit Breakers (MCBs) 2P 70A 120V​ ARCA SKU:  C15-2269 Brand:  Siemens MPN:  BQ2B070 UPC:  78364310246 Shipping Weight:  0.63 lbs. Shipping Height:  2.00 In...
    SKU:
    C15-2269
    Series:
    BQ
    Type:
    Molded Case
    Type:
    Thermal and Fixed Magnetic
    Type:
    Common Trip
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Size:
    2 Inch W x 3 Inch D x 4 Inch H
    Volts:
    120/240 VAC at 50/60 Hz (UL)
    Amps:
    32 A
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Poles:
    2
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Terminal Type:
    Load Lug
    Wire Size:
    8 to 4 AWG (Copper)
    Wire Size:
    8 to 2 AWG (Aluminum)
    Short Description:
    120/240 VAC, 70 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip
    Catalog:
    SiemensAG_01698_17_1_17_7_CAT.pdf
    Data Sheet:
    SiemensAG_05380_1_DATA.pdf
    TS PIK:
    21366182
    Voltage Rating:
    120/240 VAC
    Current Rating:
    70 A
    Number of Poles:
    2
    Mounting:
    Bolt-On
    Country of Origin:
    Mexico
    MSRP $371.00
    Surplus $81.56
    Qty in Cart: 0
    Price:
    MSRP $371.00
    Surplus $81.56
  • Contact Us For Quote
    Siemens BQ2B100 Miniature Circuit Breakers (MCBs)

    Siemens BQ2B100 Miniature Circuit Breakers (MCBs)

    MSRP $534.00
    Surplus $167.35
    SKU:  C15-10363 Brand:  Siemens MPN:  BQ2B100 UPC:  78364310248 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10363
    TS PIK:
    21366184
    Type:
    Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
    Terminal Type:
    Load Lug
    Voltage Rating:
    120/240 VAC at 50/60 Hz (UL)
    Number of Poles:
    2
    Interrupting Rating:
    10 kA at 120/240 VAC Symmetrical (UL)
    Mounting:
    Bolt-On
    Size:
    2 Inch W x 3 Inch D x 4 Inch H
    Wire Size:
    4 to 1/0 AWG (Copper), 2 to 1/0 AWG (Aluminum)
    Used On:
    P1/P2/P3/P4/P5 Panelboard
    Series:
    BQ
    Catalog:
    SiemensAG_01502_1_15_5_9_5_24_CAT.pdf
    Short Description:
    120/240 VAC 50/60 Hz, 100 A, 10 kA, 2-Pole, Line and Load Side Lug/Bolt-On Terminal, BQ Frame, Molded Case, Thermal and Fixed Magnetic Trip, Low Vage, Common Trip, Circuit Breaker
    Current Rating:
    100 A
    Country of Origin:
    Mexico
    Approval:
    UL 489, CSA C22.2
    MSRP $534.00
    Surplus $167.35
    Qty in Cart: 0
    Price:
    MSRP $534.00
    Surplus $167.35

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.