Circuit Breakers

Circuit Breakers

Circuit Breakers - Source rare and hard-to-find breakers with ease

At ARCA Supply, we know that circuit breakers are essential to safeguarding electrical systems, protecting them from overloads and short circuits. Whether you're managing a commercial facility, maintaining industrial equipment, or working on residential projects, having the right circuit breakers ensures uninterrupted performance and peace of mind.

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.

Explore Our Circuit Breaker Categories:

  • Air Circuit Breakers (ACBs): Ideal for large-scale industrial applications, ACBs provide superior protection in high-current scenarios.
  • Din Rail Mounted Circuit Breakers: These breakers are designed for quick installation in compact spaces, making them perfect for modular setups.
  • Main Breakers: As a crucial part of any electrical system, main breakers ensure that circuits are effectively managed and protected from faults.
  • Miniature Circuit Breakers (MCBs): Designed for residential and commercial use, MCBs are essential for protecting lower power circuits from damage.
  • Molded Case Breakers (MCCBs): When high current protection is needed, MCCBs offer robust and durable performance.
  • Motor Circuit Protectors (MCPs): Specifically engineered to protect motors, MCPs offer fast response times to prevent equipment damage.
  • Circuit Breaker Accessories: From trip units to mounting kits, we stock a variety of accessories to enhance the functionality of your breakers.

Leading Brands We Carry:

At ARCA Supply, we carry a comprehensive lineup of top brands to ensure you get the best quality and reliability. Our inventory includes trusted names such as Eaton, Square D, Siemens, and General Electric. With over 2,600 Eaton products and hundreds from brands like ABB, Schneider Electric, and Leviton, you can be confident in finding exactly what you need.

Choose the Right Circuit Breaker:

When selecting a circuit breaker, factors such as current rating, voltage rating, and mounting style are critical. Our range includes options for:

  • Current Ratings: From 15A to 600A, ensuring the right protection for every application.
  • Voltage Ratings: With options ranging from 120V to 600V for both AC and DC applications.
  • Mounting Types: Choose from plug-on, DIN rail, or bolt-on mountings to match your installation requirements.

Why Choose ARCA Supply?

As a trusted distributor specializing in hard-to-find electrical components, we ensure that our circuit breakers meet the highest industry standards. Our commitment to the circular economy also means that unsold products are responsibly recycled, helping to reduce waste while supporting your projects.

Explore our extensive collection of circuit breakers today and find the perfect solution for your electrical system’s needs.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Eaton NZMN1-A32 Molded Case Breakers (MCCBs) NZMN1 3P 32A 690V 50/60Hz 3Ph EA

    Eaton NZMN1-A32 Molded Case Breakers (MCCBs) NZMN1 3P 32A 690V 50/60Hz 3Ph EA

    MSRP $2,068.21
    Surplus $237.08
    SKU:  C15-5137 Brand:  Eaton MPN:  NZMN1-A32 UPC:  4015082812331 Shipping Weight:  2.40 lbs. Shipping Height:  4.00 In. Shipping Length:  6.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-5137
    Series:
    NZMN1
    Type:
    Thermal Magnetic
    Type:
    Adjustable Thermal
    Size:
    90 Millimeter Width x 84.5 Millimeter Depth x 145 Millimeter Height
    Volts:
    690 VAC
    Volts:
    500 VDC
    Amps:
    32 A
    Poles:
    3
    Interrupting Rating:
    50 kA
    Terminal Type:
    Front Frame ClA
    Terminal Type:
    Box
    Frame Type:
    NZM1
    Maximum AC Voltage Rating:
    690
    Maximum DC Voltage Rating:
    500
    Short Description:
    690 VAC, 500 VDC, 32 A, 50 kA, 3-Pole, Front Frame ClA/Box Terminal, NZM1 Frame, Thermal Magnetic, Adjustable Thermal
    Catalog:
    Eaton-Moeller_00013_61_CAT.pdf
    Data Sheet:
    Eaton-Moeller_01324_1-10_DATA.pdf
    Number of Poles:
    3
    Current Rating:
    32 A
    Voltage Rating:
    690 VAC, 500 VDC
    Country of Origin:
    Germany
    MSRP $2,068.21
    Surplus $237.08
    Qty in Cart: 0
    Price:
    MSRP $2,068.21
    Surplus $237.08
    Subtotal:
  • Eaton NZMN1-AF45-NA Molded Case Breakers (MCCBs)

    Eaton NZMN1-AF45-NA Molded Case Breakers (MCCBs)

    MSRP $2,096.29
    Surplus $336.28
    SKU:  C15-9532 Brand:  Eaton MPN:  NZMN1-AF45-NA UPC:  01508274230 Shipping Weight:  2.55 lbs. Shipping Height:  4.00 In. Shipping Length:  8.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-9532
    TS PIK:
    124502788
    Frame Type:
    NZM1
    Catalog:
    Eaton-Moeller_00013_155_CAT.pdf
    Short Description:
    480 VAC Star/277 VAC, 500 VDC, 45 A, 50 kA, 3-Pole, Front Frame ClA/Box Terminal, NZM1 Frame, Fixed Thermal Magnetic, Molded Case Circuit Breaker
    Series:
    NZMN1
    Voltage Rating:
    480 VAC Star/277 V, 500 VDC
    Number of Poles:
    3
    Current Rating:
    45 A
    Type:
    Thermal Magnetic, Fixed Thermal
    Installation/Operator:
    Eaton_00324_INST.pdf
    Interrupting Rating:
    50 kA
    Terminal Type:
    Front Frame ClA, Screw
    Maximum AC Voltage Rating:
    480
    Maximum DC Voltage Rating:
    500
    Size:
    90 Millimeter Width x 84.5 Millimeter Depth x 145 Millimeter Height
    Data Sheet:
    Eaton-Moeller_01340_1-9_DATA.pdf
    Country of Origin:
    Germany
    MSRP $2,096.29
    Surplus $336.28
    Qty in Cart: 0
    Price:
    MSRP $2,096.29
    Surplus $336.28
    Subtotal:
  • Eaton NZMN1-AF50-NA Molded Case Breakers (MCCBs) EA

    Eaton NZMN1-AF50-NA Molded Case Breakers (MCCBs) EA

    MSRP $1,968.21
    Surplus $325.92
    SKU:  C15-6724 Brand:  Eaton MPN:  NZMN1-AF50-NA UPC:  01508274231 Shipping Weight:  2.55 lbs. Shipping Height:  4.00 In. Shipping Length:  4.00 In. Shipping Width:  8.00 In...
    SKU:
    C15-6724
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Approval:
    CE
    Amps:
    50 A
    Frame:
    NZM1
    Interrupting Rating:
    50 kA
    Maximum AC Voltage:
    480
    Maximum DC Voltage:
    500
    Poles:
    3
    Size:
    90 Millimeter Width x 84.5 Millimeter Depth x 145 Millimeter Height
    Terminal Type:
    Front Frame ClA
    Terminal Type:
    Screw
    Type:
    Thermal Magnetic
    Type:
    Fixed Thermal
    Volts:
    480 VAC Star/277 V
    Volts:
    500 VDC
    Short Description:
    480 VAC Star/277 VAC, 500 VDC, 50 A, 50 kA, 3-Pole, Front Frame ClA/Box Terminal, NZM1 Frame, Fixed Thermal Magnetic, Molded Case Circuit Breaker
    Series:
    NZMN1
    Specification/Technical:
    Eaton-Moeller_00448_1_2_SPEC.pdf
    Data Sheet:
    imag ...
    Maximum AC Voltage Rating:
    480
    Frame Type:
    NZM1
    Installation/Operator:
    Eaton_00324_INST.pdf
    Maximum DC Voltage Rating:
    500
    Catalog:
    Eaton-Moeller_00013_155_CAT.pdf
    Voltage Rating:
    480 VAC Star/277 V, 500 VDC
    Current Rating:
    50 A
    Number of Poles:
    3
    Country of Origin:
    Germany
    MSRP $1,968.21
    Surplus $325.92
    Qty in Cart: 0
    Price:
    MSRP $1,968.21
    Surplus $325.92
    Subtotal:
  • Eaton NZMN2-AF60-NA Molded Case Breakers (MCCBs) EA

    Eaton NZMN2-AF60-NA Molded Case Breakers (MCCBs) EA

    MSRP $2,035.51
    Surplus $343.88
    SKU:  C15-6729 Brand:  Eaton MPN:  NZMN2-AF60-NA UPC:  4015082691783 Shipping Weight:  5.50 lbs. Shipping Height:  7.00 In. Shipping Length:  5.00 In. Shipping Width:  9.00...
    SKU:
    C15-6729
    Approval:
    UL 489
    Approval:
    CSA C22.2
    Approval:
    CE
    Amps:
    60 A
    Frame:
    NZM2
    Interrupting Rating:
    50 kA
    Maximum AC Voltage:
    600
    Maximum DC Voltage:
    750
    Poles:
    3
    Size:
    105 Millimeter Width x 149 Millimeter Depth x 184 Millimeter Height
    Terminal Type:
    Front Screw
    Type:
    Thermal Magnetic
    Type:
    Fixed Thermal
    Volts:
    600 VAC Star/347 V
    Volts:
    480 V
    Volts:
    750 VDC
    Short Description:
    600 VAC Star/347 VAC, 480 V, 60 A, 50 kA, 3-Pole, Front Screw Terminal, NZM2 Frame, Fixed Thermal Magnetic, Molded Case Circuit Breaker
    Series:
    NZMN2
    Specification/Technical:
    Eaton-Moeller_00491_1_2_SPEC.pdf
    Data Sheet:
    ATTACHMENTS ...
    TS PIK:
    21084386
    Maximum AC Voltage Rating:
    600
    Catalog:
    Eaton-Moeller_00013_154_CAT.pdf
    Installation/Operator:
    Eaton_00324_INST.pdf
    Number of Poles:
    3
    Voltage Rating:
    600 VAC Star/347 V, 480 V, 750 VDC
    Current Rating:
    60 A
    Maximum DC Voltage Rating:
    750
    Frame Type:
    NZM2
    Country of Origin:
    Germany
    MSRP $2,035.51
    Surplus $343.88
    Qty in Cart: 0
    Price:
    MSRP $2,035.51
    Surplus $343.88
    Subtotal:
  • Eaton NZMN2-S160-CNA Molded Case Breakers (MCCBs) NZMH2 3P 160A 690V 50/60Hz 3Ph Eaton NZMN2-S160-CNA Molded Case Breakers (MCCBs) NZMH2 3P 160A 690V 50/60Hz 3Ph

    Eaton NZMN2-S160-CNA Molded Case Breakers (MCCBs) NZMH2 3P 160A 690V 50/60Hz 3Ph

    MSRP $3,071.00
    Surplus $738.38
    SKU:  C15-3958 Brand:  Eaton MPN:  NZMN2-S160-CNA UPC:  015082692616 Shipping Weight:  5.45 lbs. Shipping Height:  7.00 In. Shipping Length:  9.00 In. Shipping Width:  5.00...
    SKU:
    C15-3958
    Frame Type:
    NZM2
    Voltage Rating:
    600 VAC Star/347 V
    Current Rating:
    32 A
    Number of Poles:
    3
    Interrupting Rating:
    100 kA
    Type:
    Magnetic
    Maximum AC Voltage Rating:
    600
    Maximum DC Voltage Rating:
    750
    Terminal Type:
    Screw
    Size:
    105 Millimeter Width x 149 Millimeter Depth x 184 Millimeter Height
    Short Description:
    600 VAC Star/347 VAC, 480 V, 750 VDC, 160 A, 50 kA, 3-Pole, Screw Terminal, NZM2 Frame, Magnetic
    Catalog:
    Eaton-Moeller_00013_160_CAT.pdf
    Data Sheet:
    Eaton-Moeller_01432_1-9_DATA.pdf
    Installation/Operator:
    Eaton_00324_INST.pdf
    Specification/Technical:
    Eaton-Moeller_00499_1_2_SPEC.pdf
    Series:
    NZMN2
    Country of Origin:
    Germany
    Approval:
    UL 489, CSA C22.2, CE
    MSRP $3,071.00
    Surplus $738.38
    Qty in Cart: 0
    Price:
    MSRP $3,071.00
    Surplus $738.38
    Subtotal:
  • Eaton NZMN2-VE100-BT-NA Molded Case Breakers (MCCBs) NZMN2 3P 100A 600V 50/60Hz 3Ph Eaton NZMN2-VE100-BT-NA Molded Case Breakers (MCCBs) NZMN2 3P 100A 600V 50/60Hz 3Ph

    Eaton NZMN2-VE100-BT-NA Molded Case Breakers (MCCBs) NZMN2 3P 100A 600V 50/60Hz 3Ph

    MSRP $4,750.00
    Surplus $774.36
    SKU:  C15-3756 Brand:  Eaton MPN:  NZMN2-VE100-BT-NA UPC:  015081074932 Shipping Weight:  6.30 lbs. Shipping Height:  7.00 In. Shipping Length:  9.00 In. Shipping Width:  5...
    SKU:
    C15-3756
    Frame Type:
    NZM2
    Voltage Rating:
    600 VAC Star/347 V
    Current Rating:
    32 A
    Number of Poles:
    3
    Interrupting Rating:
    50 kA
    Type:
    Electronic
    Maximum AC Voltage Rating:
    600
    Maximum DC Voltage Rating:
    750
    Terminal Type:
    Front Frame ClA
    Size:
    105 Millimeter Width x 149 Millimeter Depth x 184 Millimeter Height
    Short Description:
    600 VAC Star/347 VAC, 480 V, 750 VDC, 100 A, 50 kA, 3-Pole, Front Frame ClA/Box Terminal, NZM2 Frame, Electronic
    Catalog:
    Eaton-Moeller_00014_17_70_17_71_CAT.pdf
    Data Sheet:
    Eaton-Moeller_01449_1-10_DATA.pdf
    Installation/Operator:
    Eaton_00324_INST.pdf
    Specification/Technical:
    Eaton-Moeller_00502_1_2_SPEC.pdf
    Series:
    NZMN2
    Country of Origin:
    Germany
    Approval:
    UL489, CSA C22.2, CE
    MSRP $4,750.00
    Surplus $774.36
    Qty in Cart: 0
    Price:
    MSRP $4,750.00
    Surplus $774.36
    Subtotal:
  • Eaton NZMN2-VE160 Molded Case Breakers (MCCBs) EA

    Eaton NZMN2-VE160 Molded Case Breakers (MCCBs) EA

    MSRP $1,100.00
    Surplus $303.33
    SKU:  C15-11013 Brand:  Eaton MPN:  NZMN2-VE160 UPC:   Shipping Weight:  5.45 lbs. Shipping Height:  8.00 In. Shipping Length:  8.00 In. Shipping Width:  6.00 In. Product...
    SKU:
    C15-11013
    Number of Poles:
    3
    Voltage Rating:
    690 VAC
    Short Description:
    690 VAC 50/60 Hz, 160 A, 3-Pole, Front Screw Terminal, NZM2 Frame, Electronic, Molded Case Circuit Breaker
    Catalog:
    Eaton-Moeller_00014_17_24_17_25_CAT.pdf
    Data Sheet:
    Eaton-Moeller_01451_1-9_DATA.pdf
    Maximum AC Voltage Rating:
    690
    Size:
    105 Millimeter Width x 149 Millimeter Depth x 184 Millimeter Height
    Current Rating:
    160 A
    Installation/Operator:
    Eaton_00324_INST.pdf
    Frame Type:
    NZM2
    Terminal Type:
    Screw
    Series:
    NZMN2
    Type:
    Electronic, Adjustable Thermal
    MSRP $1,100.00
    Surplus $303.33
    Qty in Cart: 0
    Price:
    MSRP $1,100.00
    Surplus $303.33
    Subtotal:
  • Eaton ORPL60A300 Molded Case Breakers (MCCBs) Eaton ORPL60A300 Molded Case Breakers (MCCBs)

    Eaton ORPL60A300 Molded Case Breakers (MCCBs)

    MSRP $488.00
    Surplus $133.92
    SKU:  C15-11694 Brand:  Eaton MPN:  ORPL60A300 UPC:  78667904426 Shipping Weight:  0.10 lbs. Shipping Height:  1.00 In. Shipping Length:  2.00 In. Shipping Width:  1.00 In...
    SKU:
    C15-11694
    TS PIK:
    115226984
    MSRP $488.00
    Surplus $133.92
    Qty in Cart: 0
    Price:
    MSRP $488.00
    Surplus $133.92
    Subtotal:
  • Eaton PAD3E Circuit Breaker Accessories EA

    Eaton PAD3E Circuit Breaker Accessories EA

    MSRP $1,155.67
    Surplus $255.91
    SKU:  C15-9507 Brand:  Eaton MPN:  PAD3E UPC:   Shipping Weight:  2.45 lbs. Shipping Height:  4.00 In. Shipping Length:  9.00 In. Shipping Width:  7.00 In. Product...
    SKU:
    C15-9507
    TS PIK:
    119803315
    Short Description:
    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY PLUG-IN ADAPTER, PLUG-IN ADAPTER, TH
    MSRP $1,155.67
    Surplus $255.91
    Qty in Cart: 0
    Price:
    MSRP $1,155.67
    Surplus $255.91
    Subtotal:
  • Eaton PAD3L Circuit Breaker Accessories Plug In Adapter 3P LG Frame EA SERIES G Eaton PAD3L Circuit Breaker Accessories Plug In Adapter 3P LG Frame EA SERIES G

    Eaton PAD3L Circuit Breaker Accessories Plug In Adapter 3P LG Frame EA SERIES G

    MSRP $1,490.28
    Surplus $280.21
    SKU:  C15-1746 Brand:  Eaton MPN:  PAD3L UPC:  782116906833 Shipping Weight:  13.60 lbs. Shipping Height:  6.50 In. Shipping Length:  12.50 In. Shipping Width:  9.00 In...
    SKU:
    C15-1746
    Poles:
    3
    Frame:
    LG
    Short Description:
    SERIES C_ L FRAME 3P PLUG IN BLOCK
    TS PIK:
    121852882
    MSRP $1,490.28
    Surplus $280.21
    Qty in Cart: 0
    Price:
    MSRP $1,490.28
    Surplus $280.21
    Subtotal:
  • Eaton PAD3LD Circuit Breaker Accessories Plug In Block 3P LD Frame EA Eaton PAD3LD Circuit Breaker Accessories Plug In Block 3P LD Frame EA

    Eaton PAD3LD Circuit Breaker Accessories Plug In Block 3P LD Frame EA

    MSRP $2,380.99
    Surplus $693.16
    SKU:  C15-3408 Brand:  Eaton MPN:  PAD3LD UPC:  782116080335 Shipping Weight:  16.85 lbs. Shipping Height:  9.00 In. Shipping Length:  18.00 In. Shipping Width:  13.00 In...
    SKU:
    C15-3408
    Type:
    Plug-In Adapter
    Used On:
    Molded Case Circuit Breaker
    Short Description:
    LD-Frame, 3-Pole
    Catalog:
    Eaton_14666_V4T2_460_CAT.pdf
    TS PIK:
    119803321
    Country of Origin:
    China
    MSRP $2,380.99
    Surplus $693.16
    Qty in Cart: 0
    Price:
    MSRP $2,380.99
    Surplus $693.16
    Subtotal:
  • Eaton PDG12XHMS307 Circuit Breaker Accessories EA

    Eaton PDG12XHMS307 Circuit Breaker Accessories EA

    MSRP $15.83
    Surplus $2.94
    Eaton PDG12XHMS307 Circuit Breaker Accessories EA​ ARCA SKU:  C15-9639 Brand:  Eaton MPN:  PDG12XHMS307 UPC:   Shipping Weight:  0.25 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    C15-9639
    TS PIK:
    127751364
    Used On:
    PD1 Global Molded Case Circuit Breaker
    Type:
    Handle Mechanism Shaft, Variable Depth
    Catalog:
    Eaton_03771_V4T2_22_V4T2_27_V4T2_40_CAT.pdf
    Prop 65 Warning:
    Yes
    Country of Origin:
    China
    MSRP $15.83
    Surplus $2.94
    Qty in Cart: 0
    Price:
    MSRP $15.83
    Surplus $2.94
    Subtotal:
  • Eaton PDG12XHMS507 Circuit Breaker Accessories

    Eaton PDG12XHMS507 Circuit Breaker Accessories

    MSRP $20.00
    Surplus $8.60
    SKU:  C15-11450 Brand:  Eaton MPN:  PDG12XHMS507 UPC:  786679586587 Shipping Weight:  0.50 lbs. Shipping Height:  1.00 In. Shipping Length:  22.00 In. Shipping Width:  2.00...
    SKU:
    C15-11450
    Type:
    Handle Mechanism Shaft, Variable Depth
    Prop 65 Warning:
    Yes
    Used On:
    PD1 Global Molded Case Circuit Breaker
    Catalog:
    Eaton_03771_V4T2_22_V4T2_27_V4T2_40_CAT.pdf
    Country of Origin:
    China
    MSRP $20.00
    Surplus $8.60
    Qty in Cart: 0
    Price:
    MSRP $20.00
    Surplus $8.60
    Subtotal:
  • Eaton PDG1X3TS125 Circuit Breaker Accessories

    Eaton PDG1X3TS125 Circuit Breaker Accessories

    MSRP $9.22
    Surplus $4.78
    SKU:  C15-11437 Brand:  Eaton MPN:  PDG1X3TS125 UPC:  786689213329 Shipping Weight:  0.10 lbs. Shipping Height:  1.00 In. Shipping Length:  7.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-11437
    TS PIK:
    128430787
    MSRP $9.22
    Surplus $4.78
    Qty in Cart: 0
    Price:
    MSRP $9.22
    Surplus $4.78
    Subtotal:
  • Eaton PDG1XPLKTOFF Circuit Breaker Accessories

    Eaton PDG1XPLKTOFF Circuit Breaker Accessories

    MSRP $85.00
    Surplus $16.83
    SKU:  C15-11607 Brand:  Eaton MPN:  PDG1XPLKTOFF UPC:  786679584590 Shipping Weight:  0.20 lbs. Shipping Height:  1.00 In. Shipping Length:  7.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-11607
    Country of Origin:
    Dominican Republic
    Libra Liquidity Lot:
    Libra Auction Lot
    MSRP $85.00
    Surplus $16.83
    Qty in Cart: 0
    Price:
    MSRP $85.00
    Surplus $16.83
    Subtotal:
  • Eaton PDG1XWBI3P Circuit Breaker Accessories

    Eaton PDG1XWBI3P Circuit Breaker Accessories

    MSRP $593.23
    Surplus $240.25
    SKU:  C15-11692 Brand:  Eaton MPN:  PDG1XWBI3P UPC:  78668933767 Shipping Weight:  2.05 lbs. Shipping Height:  1.00 In. Shipping Length:  7.00 In. Shipping Width:  7.00 In...
    SKU:
    C15-11692
    TS PIK:
    128340838
    MSRP $593.23
    Surplus $240.25
    Qty in Cart: 0
    Price:
    MSRP $593.23
    Surplus $240.25
    Subtotal:
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