Circuit Breakers

Circuit Breakers

Circuit Breakers

Our selection of circuit breakers spans a wide range of applications, from heavy-duty air circuit breakers (ACBs) to compact miniature circuit breakers (MCBs). We offer leading brands like Eaton, Siemens, and Square D, known for their reliability and performance. Whatever your power management needs, you can find the perfect solution here at ARCA Supply.

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  • Siemens MQ130 Miniature Circuit Breakers (MCBs) MQ 1P 30A 120/240V 50/60Hz 1Ph Siemens MQ130 Miniature Circuit Breakers (MCBs) MQ 1P 30A 120/240V 50/60Hz 1Ph
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    Siemens MQ130 Miniature Circuit Breakers (MCBs) MQ 1P 30A 120/240V 50/60Hz 1Ph

    MSRP $66.60
    Surplus $3.26
    Siemens MQ130 Miniature Circuit Breakers (MCBs) MQ 1P 30A 120/240V 50/60Hz 1Ph​ ARCA SKU:  C15-3141 Brand:  Siemens MPN:  MQ130 UPC:  040892528169 Shipping Weight:  0.25 Shipping Height:  1.00...
    SKU:
    C15-3141
    Type:
    Common Trip
    Approval:
    UL
    Volts:
    120 V
    Amps:
    30 A
    Used On:
    Loadcenter
    Used On:
    Type QO Circuit Breaker
    Used On:
    Type QO Panelboard
    Poles:
    1
    Mounting:
    Plug-On
    Interrupting Rating:
    10 kA
    Short Description:
    30 A, 10 kA, 1-Pole, 3/4" Format, MSQ Frame
    Data Sheet:
    SiemensAG_06677_1_DATA.pdf
    Voltage Rating:
    120 VAC
    Number of Poles:
    1
    Current Rating:
    30 A
    Series:
    MSQ
    Country of Origin:
    Mexico
    MSRP $66.60
    Surplus $3.26
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    Qty in Cart: 0
    Price:
    MSRP $66.60
    Surplus $3.26
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  • Siemens MXD63S800A Molded Case Breakers (MCCBs)
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    Siemens MXD63S800A Molded Case Breakers (MCCBs)

    MSRP $14,340.00
    Surplus $2,031.58
    SKU:  C15-7489 Brand:  Siemens MPN:  MXD63S800A UPC:  78364321533 Shipping Weight:  59.15 lbs. Shipping Height:  10.00 In. Shipping Length:  16.00 In. Shipping Width:  13.00...
    SKU:
    C15-7489
    TS PIK:
    120152400
    Type:
    Molded Case, Low Vage, Magnetic Trip, Standard Breaking Capacity
    Interrupting Rating:
    25 kA at 600 VAC/500 VDC
    Maximum DC Voltage Rating:
    500 V
    Maximum AC Voltage Rating:
    600 V
    Current Rating:
    800 A
    Catalog:
    SiemensAG_09175_17_100_17_117_CAT.pdf
    Terminal Type:
    Not Included
    Voltage Rating:
    600 VAC 50/60 Hertz, 500 VDC
    Installation/Operator:
    SiemensAG_00592_INST.pdf
    Number of Poles:
    3
    Frame Type:
    MD
    Size:
    9 Inch Width x 6 Inch Depth x 16 Inch Height
    Country of Origin:
    Mexico
    MSRP $14,340.00
    Surplus $2,031.58
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    Qty in Cart: 0
    Price:
    MSRP $14,340.00
    Surplus $2,031.58
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  • Siemens N125X Circuit Breaker Accessories EA
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    Siemens N125X Circuit Breaker Accessories EA

    MSRP $188.50
    Surplus $46.28
    Siemens N125X Circuit Breaker Accessories EA​ ARCA SKU:  C15-9508 Brand:  Siemens MPN:  N125X UPC:  19512521049 Shipping Weight:  0.25 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-9508
    TS PIK:
    129211476
    Short Description:
    NEUTRAL KIT 3VA 125A 100PERCENT CB ENCL
    Country of Origin:
    Mexico
    MSRP $188.50
    Surplus $46.28
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    Qty in Cart: 0
    Price:
    MSRP $188.50
    Surplus $46.28
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    Siemens ND62B120 Molded Case Breakers (MCCBs) 2P 1200A 600V
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    Siemens ND62B120 Molded Case Breakers (MCCBs) 2P 1200A 600V

    MSRP $27,922.00
    Surplus $10,051.92
    Siemens ND62B120 Molded Case Breakers (MCCBs) 2P 1200A 600V​ ARCA SKU:  C15-7624 Brand:  Siemens MPN:  ND62B120 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-7624
    MSRP $27,922.00
    Surplus $10,051.92
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    Qty in Cart: 0
    Price:
    MSRP $27,922.00
    Surplus $10,051.92
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    Siemens ND63B120 Molded Case Breakers (MCCBs) 3P 1200A 600V
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    Siemens ND63B120 Molded Case Breakers (MCCBs) 3P 1200A 600V

    MSRP $35,570.00
    Surplus $12,805.20
    SKU:  C15-7625 Brand:  Siemens MPN:  ND63B120 UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-7625
    MSRP $35,570.00
    Surplus $12,805.20
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    Price:
    MSRP $35,570.00
    Surplus $12,805.20
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    Siemens ND63F120 Molded Case Breakers (MCCBs)
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    Siemens ND63F120 Molded Case Breakers (MCCBs)

    MSRP $17,097.00
    Surplus $4,424.91
    SKU:  C15-7688 Brand:  Siemens MPN:  ND63F120 UPC:  78364321543 Shipping Weight:  46.90 lbs. Shipping Height:  10.00 In. Shipping Length:  19.00 In. Shipping Width:  12.00 In...
    SKU:
    C15-7688
    TS PIK:
    21333871
    Type:
    Interchangeable Trip
    Size:
    9 Inch W x 6 Inch D x 16 Inch H
    Catalog:
    SiemensAG_01698_17_100_CAT.pdf
    Interrupting Rating:
    25 kA at 600 VAC/500 VDC
    Voltage Rating:
    600 VAC/500 VDC
    Number of Poles:
    3
    Current Rating:
    1200 A
    Short Description:
    600 VAC, 500 VDC, 800 to 1200 A, 25 kA, 3-Pole, Interchangeable Trip, Molded Case, Thermal Magnetic, FD Frame, Circuit Breaker Frame
    Series:
    ND6
    Country of Origin:
    Mexico
    MSRP $17,097.00
    Surplus $4,424.91
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    Qty in Cart: 0
    Price:
    MSRP $17,097.00
    Surplus $4,424.91
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    Siemens ND63T120 Molded Case Breakers (MCCBs)
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    Siemens ND63T120 Molded Case Breakers (MCCBs)

    MSRP $15,979.00
    Surplus $1,945.79
    SKU:  C15-7689 Brand:  Siemens MPN:  ND63T120 UPC:  78364321569 Shipping Weight:  6.20 lbs. Shipping Height:  7.00 In. Shipping Length:  10.00 In. Shipping Width:  8.00 In...
    SKU:
    C15-7689
    TS PIK:
    21333877
    Frame Type:
    ND
    Short Description:
    600 VAC, 500 VDC, 1200 A, 25/50 kA, 3-Pole, 250 to 500 KCMIL Copper/Aluminum, Line/Load Lug Terminal, ND Frame, Thermal Magnetic, Interchangeable Molded Case Circuit Breaker Trip Unit
    Series:
    ND6
    MSRP $15,979.00
    Surplus $1,945.79
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    Qty in Cart: 0
    Price:
    MSRP $15,979.00
    Surplus $1,945.79
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  • Siemens NEB1B020B Molded Case Breakers (MCCBs)
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    Siemens NEB1B020B Molded Case Breakers (MCCBs)

    MSRP $3,153.00
    Surplus $128.61
    SKU:  E30-11706 Brand:  Siemens MPN:  NEB1B020B UPC:  78364355815 Shipping Weight:  1.05 lbs. Shipping Height:  5.00 In. Shipping Length:  7.00 In. Shipping Width:  5.00 In...
    SKU:
    E30-11706
    TS PIK:
    115459763
    Current Rating:
    20 A
    Interrupting Rating:
    100 kA at 120 VAC (UL 489), 85 kA at 240 VAC (UL 489), 35 kA at 277 VAC/125/250 VDC (UL 489), 22 kA at 347 VAC (UL 489), 85 kA at 240 VAC (IEC), 35 kA at 250 VDC (IEC)
    Number of Poles:
    1
    Voltage Rating:
    277 V
    Series:
    NEB
    Short Description:
    240/277/347 VAC 50/60 Hz, 125/250 VDC, 20 A, 85 kA, 1-Pole, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
    Type:
    Thermal Magnetic, Molded Case
    Country of Origin:
    Dominican Republic
    MSRP $3,153.00
    Surplus $128.61
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    Qty in Cart: 0
    Price:
    MSRP $3,153.00
    Surplus $128.61
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    Siemens NEB3B020B Molded Case Breakers (MCCBs) 3P 20A
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    Siemens NEB3B020B Molded Case Breakers (MCCBs) 3P 20A

    MSRP $9,787.00
    Surplus $2,371.67
    SKU:  C15-7490 Brand:  Siemens MPN:  NEB3B020B UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In. Product...
    SKU:
    C15-7490
    MSRP $9,787.00
    Surplus $2,371.67
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    Qty in Cart: 0
    Price:
    MSRP $9,787.00
    Surplus $2,371.67
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    Siemens NEB3B030B Molded Case Breakers (MCCBs)
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    Siemens NEB3B030B Molded Case Breakers (MCCBs)

    MSRP $9,787.00
    Surplus $2,475.59
    SKU:  C15-7626 Brand:  Siemens MPN:  NEB3B030B UPC:  78364355853 Shipping Weight:  1.26 lbs. Shipping Height:  5.40 In. Shipping Length:  3.00 In. Shipping Width:  2.80 In...
    SKU:
    C15-7626
    Voltage Rating:
    480 V
    Short Description:
    240/347/480/600 VAC 50/60 Hz, 125/250 VDC, 30 A, 85 kA, 3-Pole, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
    Interrupting Rating:
    85 kA at 240 VAC (UL 489), 35 kA at 480 VAC/125/250 VDC (UL 489), 22 kA at 600 Star/347 VAC (UL 489), 85 kA at 240 VAC (IEC), 40 kA at 415 VAC (IEC), 35 kA at 250 VDC (IEC)
    Current Rating:
    30 A
    Series:
    NEB
    Number of Poles:
    3
    Type:
    Thermal Magnetic, Molded Case
    Country of Origin:
    Dominican Republic
    MSRP $9,787.00
    Surplus $2,475.59
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    Qty in Cart: 0
    Price:
    MSRP $9,787.00
    Surplus $2,475.59
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    Siemens NEB3B100B Miniature Circuit Breakers (MCBs) 3P 100A
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    Siemens NEB3B100B Miniature Circuit Breakers (MCBs) 3P 100A

    MSRP $11,107.00
    Surplus $2,215.14
    Siemens NEB3B100B Miniature Circuit Breakers (MCBs) 3P 100A​ ARCA SKU:  C15-7676 Brand:  Siemens MPN:  NEB3B100B UPC:   Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping...
    SKU:
    C15-7676
    TS PIK:
    21334135
    MSRP $11,107.00
    Surplus $2,215.14
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    Qty in Cart: 0
    Price:
    MSRP $11,107.00
    Surplus $2,215.14
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    Siemens NEG3B015L Molded Case Breakers (MCCBs) EA

    MSRP $7,500.00
    Surplus $1,965.88
    SKU:  C15-10503 Brand:  Siemens MPN:  NEG3B015L UPC:  78364351980 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10503
    TS PIK:
    120973117
    Country of Origin:
    Dominican Republic
    MSRP $7,500.00
    Surplus $1,965.88
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    Qty in Cart: 0
    Price:
    MSRP $7,500.00
    Surplus $1,965.88
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    Siemens NF651H Molded Case Breakers (MCCBs) 6P 30A 600V EA Siemens NF651H Molded Case Breakers (MCCBs) 6P 30A 600V EA
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    Siemens NF651H Molded Case Breakers (MCCBs) 6P 30A 600V EA

    MSRP $1,552.99
    Surplus $559.08
    SKU:  E30-11730 Brand:  Siemens MPN:  NF651H UPC:   Shipping Weight:  21.95 lbs. Shipping Height:  5.00 In. Shipping Length:  16.00 In. Shipping Width:  15.00 In. Product...
    SKU:
    E30-11730
    MSRP $1,552.99
    Surplus $559.08
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    Qty in Cart: 0
    Price:
    MSRP $1,552.99
    Surplus $559.08
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  • Siemens NGB1B020 Miniature Circuit Breakers (MCBs) 1P 20A 347V
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    Siemens NGB1B020 Miniature Circuit Breakers (MCBs) 1P 20A 347V

    MSRP $443.00
    Surplus $70.68
    Siemens NGB1B020 Miniature Circuit Breakers (MCBs) 1P 20A 347V​ ARCA SKU:  C15-6216 Brand:  Siemens MPN:  NGB1B020 UPC:  78364355310 Shipping Weight:  0.75 lbs. Shipping Height:  1.00 In...
    SKU:
    C15-6216
    TS PIK:
    21367310
    Number of Poles:
    1
    MSRP $443.00
    Surplus $70.68
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    Qty in Cart: 0
    Price:
    MSRP $443.00
    Surplus $70.68
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  • Siemens NGB1B020B Miniature Circuit Breakers (MCBs) 1P 20A 347V
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    Siemens NGB1B020B Miniature Circuit Breakers (MCBs) 1P 20A 347V

    MSRP $443.00
    Surplus $83.90
    Siemens NGB1B020B Miniature Circuit Breakers (MCBs) 1P 20A 347V​ ARCA SKU:  C15-6217 Brand:  Siemens MPN:  NGB1B020B UPC:  78364341396 Shipping Weight:  0.85 lbs. Shipping Height:  2.00 In...
    SKU:
    C15-6217
    TS PIK:
    21367322
    Short Description:
    BREAKER NGB 1P 20A 347V 14KA LD LUG
    Number of Poles:
    1
    Country of Origin:
    Mexico
    MSRP $443.00
    Surplus $83.90
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    Qty in Cart: 0
    Price:
    MSRP $443.00
    Surplus $83.90
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  • Siemens NGB2B020B Miniature Circuit Breakers (MCBs)
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    Siemens NGB2B020B Miniature Circuit Breakers (MCBs)

    MSRP $1,353.00
    Surplus $179.41
    SKU:  E30-11707 Brand:  Siemens MPN:  NGB2B020B UPC:  78364341411 Shipping Weight:  1.75 lbs. Shipping Height:  5.00 In. Shipping Length:  8.00 In. Shipping Width:  4.00 In...
    SKU:
    E30-11707
    TS PIK:
    115459764
    Number of Poles:
    2
    Country of Origin:
    Mexico
    MSRP $1,353.00
    Surplus $179.41
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    Qty in Cart: 0
    Price:
    MSRP $1,353.00
    Surplus $179.41
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    Siemens NGB2B050B Miniature Circuit Breakers (MCBs) EA
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    Siemens NGB2B050B Miniature Circuit Breakers (MCBs) EA

    MSRP $1,600.00
    Surplus $504.67
    SKU:  C15-10505 Brand:  Siemens MPN:  NGB2B050B UPC:  78364341417 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10505
    TS PIK:
    121460468
    Country of Origin:
    Mexico
    MSRP $1,600.00
    Surplus $504.67
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    Qty in Cart: 0
    Price:
    MSRP $1,600.00
    Surplus $504.67
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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.