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
  • Siemens RHOSVD Circuit Breaker Accessories EA

    Siemens RHOSVD Circuit Breaker Accessories EA

    MSRP $98.00
    Surplus $21.76
    Siemens RHOSVD Circuit Breaker Accessories EA​ ARCA SKU:  E30-10153 Brand:  Siemens MPN:  RHOSVD UPC:   Shipping Weight:  0.90 lbs. Shipping Height:  17.00 In. Shipping...
    SKU:
    E30-10153
    Short Description:
    12" L, Rotary Handle Shaft for Circuit Breaker
    Type:
    Door Mounted Rotary Operator Handle
    Installation/Operator:
    SiemensAG_00472_INST.pdf
    Country of Origin:
    Mexico
    Catalog:
    SiemensAG_01698_17_126_CAT.pdf
    MSRP $98.00
    Surplus $21.76
    Qty in Cart: 0
    Price:
    MSRP $98.00
    Surplus $21.76
    Subtotal:
  • Siemens S01MN6 Circuit Breaker Accessories EA

    Siemens S01MN6 Circuit Breaker Accessories EA

    MSRP $2,150.00
    Surplus $569.38
    SKU:  C15-10614 Brand:  Siemens MPN:  S01MN6 UPC:  78364321598 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10614
    TS PIK:
    21367757
    Country of Origin:
    Mexico
    Short Description:
    120 VAC, Shunt Trip for MD/ND/PD/RD Frame Molded Case Circuit Breaker
    Used On:
    800 A MD/SMD, 1200 A ND/SND, 1600 A PD/SPD, 2000 A RD Frame Molded Case Circuit Breaker
    Catalog:
    SiemensAG_01698_17_99_CAT.pdf
    MSRP $2,150.00
    Surplus $569.38
    Qty in Cart: 0
    Price:
    MSRP $2,150.00
    Surplus $569.38
    Subtotal:
  • Siemens SADU Circuit Breaker Accessories EA Siemens SADU Circuit Breaker Accessories EA

    Siemens SADU Circuit Breaker Accessories EA

    MSRP $2,820.00
    Surplus $706.74
    SKU:  C15-7506 Brand:  Siemens MPN:  SADU UPC:  783643087804 Shipping Weight:  0.50 lbs. Shipping Height:  3.00 In. Shipping Length:  4.00 In. Shipping Width:  8.00 In...
    SKU:
    C15-7506
    Country of Origin:
    Mexico
    MSRP $2,820.00
    Surplus $706.74
    Qty in Cart: 0
    Price:
    MSRP $2,820.00
    Surplus $706.74
    Subtotal:
  • Siemens SCND69100A Molded Case Breakers (MCCBs) SCND6 3P 1000A 600V 50/60Hz 3Ph Siemens SCND69100A Molded Case Breakers (MCCBs) SCND6 3P 1000A 600V 50/60Hz 3Ph

    Siemens SCND69100A Molded Case Breakers (MCCBs) SCND6 3P 1000A 600V 50/60Hz 3Ph

    MSRP $37,350.00
    Surplus $3,430.25
    SKU:  C15-3445 Brand:  Siemens MPN:  SCND69100A UPC:   Shipping Weight:  64.10 lbs. Shipping Height:  9.00 In. Shipping Length:  23.00 In. Shipping Width:  10.00 In. Product...
    SKU:
    C15-3445
    Series:
    SCND6-A
    Type:
    Electronic
    Type:
    Solid State
    Approval:
    UL 489
    Approval:
    IEC 947-2
    Size:
    9 Inch Width x 8.25 Inch Depth x 16 Inch Height
    Volts:
    600 VAC
    Amps:
    32 A
    Poles:
    3
    Interrupting Rating:
    200 kA at 240 VAC (UL 489)
    Interrupting Rating:
    100 kA at 480 Volt AC (UL 489)
    Interrupting Rating:
    65 kA at 600 Volt AC (UL 489)
    Terminal Type:
    Line/Load Lug
    Frame Type:
    ND
    Maximum AC Voltage Rating:
    600 V
    Short Description:
    600 VAC, 1000 A, 100 kA, 3-Pole, 1/0 AWG to 500 KCMIL Copper/Aluminum, Line/Load Lug Terminal, MD Frame, LI Sensitrip, Electronic Trip
    Current Rating:
    100 A
    Voltage Rating:
    600 VAC
    Number of Poles:
    3
    Country of Origin:
    MEX
    MSRP $37,350.00
    Surplus $3,430.25
    Qty in Cart: 0
    Price:
    MSRP $37,350.00
    Surplus $3,430.25
    Subtotal:
  • Siemens SHMD6B800LSIH Molded Case Breakers (MCCBs) Siemens SHMD6B800LSIH Molded Case Breakers (MCCBs)

    Siemens SHMD6B800LSIH Molded Case Breakers (MCCBs)

    MSRP $35,000.00
    Surplus $9,305.17
    SKU:  C15-11435 Brand:  Siemens MPN:  SHMD6B800LSIH UPC:   Shipping Weight:  54.45 lbs. Shipping Height:  13.00 In. Shipping Length:  19.00 In. Shipping Width:  11.00 In...
    SKU:
    C15-11435
    Current Rating:
    800 A
    Series:
    SHMD
    Interrupting Rating:
    65kA@480V
    Number of Poles:
    3
    Number of Phases:
    3
    Voltage Rating:
    600 V
    Short Description:
    Siemens, Sentron Series, type SHMD, 3PH, 3P, 600V, 800A, 65kA@480V, Feed-Thru connection, 100% rated, complete with Sensitrip IV series trip unit with LSI - Long-Time,
    Country of Origin:
    Mexico
    MSRP $35,000.00
    Surplus $9,305.17
    Qty in Cart: 0
    Price:
    MSRP $35,000.00
    Surplus $9,305.17
    Subtotal:
  • Siemens SJ1 Circuit Breaker Accessories EA

    Siemens SJ1 Circuit Breaker Accessories EA

    MSRP $4,150.08
    Surplus $922.51
    SKU:  L12-1907 Brand:  Siemens MPN:  SJ1 UPC:  783643225657 Shipping Weight:  12.55 lbs. Shipping Height:  4.00 In. Shipping Length:  20.00 In. Shipping Width:  11.00 In...
    SKU:
    L12-1907
    Short Description:
    Jumbo, 1-Gang, 302/304 Smooth Stainless Steel, (1) Switch, Wallplate
    Catalog:
    HUBKELE00218_K3_K16_K27_K28.pdf
    Country of Origin:
    United States
    MSRP $4,150.08
    Surplus $922.51
    Qty in Cart: 0
    Price:
    MSRP $4,150.08
    Surplus $922.51
    Subtotal:
  • Siemens TA1E6125 Circuit Breaker Accessories Framed Breaker Lug 125A Siemens TA1E6125 Circuit Breaker Accessories Framed Breaker Lug 125A

    Siemens TA1E6125 Circuit Breaker Accessories Framed Breaker Lug 125A

    MSRP $32.00
    Surplus $30.13
    Siemens TA1E6125 Circuit Breaker Accessories Framed Breaker Lug 125A​ ARCA SKU:  C15-2758 Brand:  Siemens MPN:  TA1E6125 UPC:  783643224902 Shipping Weight:  0.05 Shipping Height:  1.00 In...
    SKU:
    C15-2758
    Type:
    Line/Load Lug
    Used On:
    ED Frame Sentron Series Molded Case Circuit Breaker
    Conductor Material:
    Copper/Aluminum
    Body Material:
    Aluminum
    Maximum Conductor Size:
    3/0 AWG (Copper)
    Maximum Conductor Size:
    2/0 AWG (Aluminum)
    Minimum Conductor Size:
    3 AWG (Copper)
    Minimum Conductor Size:
    1 AWG (Aluminum)
    Number of Conductors:
    1
    Maximum Breaker Current Rating:
    125 Ampere
    Quantity:
    1
    Short Description:
    3 to 3/0 AWG Copper/1 to 2/0 AWG Aluminum, Aluminum, Line/Load Side, Mechanical
    Catalog:
    SiemensAG_01854_22_CAT.pdf
    Installation/Operator:
    SiemensAG_00181_INST.pdf
    Country of Origin:
    Mexico
    MSRP $32.00
    Surplus $30.13
    Qty in Cart: 0
    Price:
    MSRP $32.00
    Surplus $30.13
    Subtotal:
  • Siemens TA1Q1 Circuit Breaker Accessories EA

    Siemens TA1Q1 Circuit Breaker Accessories EA

    MSRP $6.31
    Surplus $2.82
    Siemens TA1Q1 Circuit Breaker Accessories EA​ ARCA SKU:  L20-3296 Brand:  Siemens MPN:  TA1Q1 UPC:  78364316142 Shipping Weight:  0.15 lbs. Shipping Height:  1.00 In. Shipping...
    SKU:
    L20-3296
    TS PIK:
    117091424
    Catalog:
    SiemensAG_01698_17_8_17_117_17_122_CAT.pdf
    Used On:
    BQ/BQH/HBQ Frame Molded Case Circuit Breaker
    Country of Origin:
    Mexico
    Short Description:
    8 to 1 AWG Copper/6 to 1/0 AWG Aluminum, Line Side, Mechanical, Lug for 45 to 125 A BQ/BQH Molded Circuit Breaker (6 per Pack)
    Type:
    Line Lug
    MSRP $6.31
    Surplus $2.82
    Qty in Cart: 0
    Price:
    MSRP $6.31
    Surplus $2.82
    Subtotal:
  • Siemens TA2J630 Circuit Breaker Accessories EA

    Siemens TA2J630 Circuit Breaker Accessories EA

    MSRP $84.00
    Surplus $22.25
    Siemens TA2J630 Circuit Breaker Accessories EA​ ARCA SKU:  L20-3297 Brand:  Siemens MPN:  TA2J630 UPC:  78364319824 Shipping Weight:  0.25 lbs. Shipping Height:  2.00 In. Shipping...
    SKU:
    L20-3297
    TS PIK:
    119495727
    Country of Origin:
    Mexico
    Used On:
    SJD Frame Sentron Series Molded Case Circuit Breaker
    Installation/Operator:
    SiemensAG_00181_INST.pdf
    Short Description:
    4 to 3/0 AWG Copper/Aluminum, Lug for SJD Frame Molded Case Circuit Breaker (1 per Pack)
    Catalog:
    SiemensAG_01698_17_87_17_118_CAT.pdf
    MSRP $84.00
    Surplus $22.25
    Qty in Cart: 0
    Price:
    MSRP $84.00
    Surplus $22.25
    Subtotal:
  • Siemens TC1Q1 Circuit Breaker Accessories

    Siemens TC1Q1 Circuit Breaker Accessories

    Surplus $11.21
    Siemens TC1Q1 Circuit Breaker Accessories​ ARCA SKU:  C15-8857 Brand:  Siemens MPN:  TC1Q1 UPC:  66286203187 Shipping Weight:  0.90 lbs. Shipping Height:  4.00 In. Shipping...
    SKU:
    C15-8857
    Catalog:
    SiemensAG_01698_17_8_17_12_17_117_17_122_CAT.pdf
    Country of Origin:
    Mexico
    Type:
    Line Lug
    Used On:
    BQ/BQH/HBQ Frame Molded Case Circuit Breaker
    Short Description:
    14 to 6 AWG Copper/12 to 6 AWG Aluminum, Line Side, Lug for 15 to 40 A BQ/BQH Molded Circuit Breaker (6 per Pack)
    Surplus $11.21
    Qty in Cart: 0
    Price:
    Surplus $11.21
    Subtotal:
  • Siemens WP68 Circuit Breaker Accessories Siemens WP68 Circuit Breaker Accessories

    Siemens WP68 Circuit Breaker Accessories

    MSRP $2,518.00
    Surplus $542.06
    SKU:  C15-11527 Brand:  Siemens MPN:  WP68 UPC:   Shipping Weight:  114.00 lbs. Shipping Height:  22.00 In. Shipping Length:  75.00 In. Shipping Width:  9.00 In. Product...
    SKU:
    C15-11527
    Short Description:
    20" x 5.75" x 68", Steel, NEMA 3R/12, Enclosure for P1/P2 Panelboard
    Catalog:
    SiemensAG_01829_10_12_10_33_10_43_CAT.pdf
    Country of Origin:
    United States
    Data Sheet:
    SiemensAG_07630_1_DATA.pdf
    MSRP $2,518.00
    Surplus $542.06
    Qty in Cart: 0
    Price:
    MSRP $2,518.00
    Surplus $542.06
    Subtotal:
  • Square D 60115 Miniature Circuit Breakers (MCBs)

    Square D 60115 Miniature Circuit Breakers (MCBs)

    MSRP $236.34
    Surplus $43.17
    Square D 60115 Miniature Circuit Breakers (MCBs)​ ARCA SKU:  E30-10181 Brand:  Square D MPN:  60115 UPC:   Shipping Weight:  0.30 lbs. Shipping Height:  1.00 In. Shipping...
    SKU:
    E30-10181
    Size:
    18 Inch Width x 18 Inch Depth x 15 Inch Height
    Catalog:
    UTTRMOE00005_479.pdf
    Short Description:
    La Costa Greenery
    Type:
    La Costa Greenery
    MSRP $236.34
    Surplus $43.17
    Qty in Cart: 0
    Price:
    MSRP $236.34
    Surplus $43.17
    Subtotal:
  • Square D AL100FA Circuit Breaker Accessories EA

    Square D AL100FA Circuit Breaker Accessories EA

    MSRP $75.00
    Surplus $45.20
    SKU:  C15-10617 Brand:  Square D MPN:  AL100FA UPC:  78590106074 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10617
    TS PIK:
    115542981
    Catalog:
    SchneiderElectric-SquareD_03392_11_8_11_16_CAT.pdf
    Data Sheet:
    SchneiderElectric-SquareD_12205_1_DATA.pdf
    Series:
    AL
    Short Description:
    100 A, 12 AWG/14 to 1/0 AWG, 1-Conductor, Standard, Mechanical Lug Kit for FA/FH/FI Series Circuit Breaker
    Prop 65 Warning:
    Yes
    Used On:
    FA/FH/FI Series Circuit Breaker
    Country of Origin:
    United States
    MSRP $75.00
    Surplus $45.20
    Qty in Cart: 0
    Price:
    MSRP $75.00
    Surplus $45.20
    Subtotal:
  • Square D AL150HD Circuit Breaker Accessories EA

    Square D AL150HD Circuit Breaker Accessories EA

    MSRP $70.00
    Surplus $53.77
    SKU:  C15-10618 Brand:  Square D MPN:  AL150HD UPC:  78590184106 Shipping Weight:  0.00 lbs. Shipping Height:  0.00 In. Shipping Length:  0.00 In. Shipping Width:  0.00 In...
    SKU:
    C15-10618
    TS PIK:
    121233597
    Used On:
    HD/HG/HJ/HL Series Circuit Breaker
    Installation/Operator:
    SchneiderElectric-SquareD_00714_INST.pdf
    Prop 65 Warning:
    Yes
    Short Description:
    150 A, 14 to 3/0 AWG, Aluminum/Copper, 1-Conductor, Mechanical Lug Kit for PowerPact HD/HG/HJ/HL Series Molded Case Circuit Breaker
    Data Sheet:
    SchneiderElectric-SquareD_12213_1_2_DATA.pdf
    Catalog:
    SchneiderElectric-SquareD_00097_31_33_35_37_47_CAT.pdf
    Country of Origin:
    United States
    MSRP $70.00
    Surplus $53.77
    Qty in Cart: 0
    Price:
    MSRP $70.00
    Surplus $53.77
    Subtotal:
  • Square D AL900MA Circuit Breaker Accessories

    Square D AL900MA Circuit Breaker Accessories

    MSRP $95.00
    Surplus $135.66
    Square D AL900MA Circuit Breaker Accessories​ ARCA SKU:  C15-6699 Brand:  Square D MPN:  AL900MA UPC:  78590136875 Shipping Weight:  1.00 lbs. Shipping Height:  5.00 In. Shipping...
    SKU:
    C15-6699
    Series:
    AL
    Short Description:
    1000 A, 3/0 AWG to 350 KCMIL, 3-Conductor, Standard, Mechanical Lug Kit for MA/MH Series Circuit Breaker
    Used On:
    MA/MH Series Circuit Breaker
    Data Sheet:
    SchneiderElectric-SquareD_12234_1_DATA.pdf
    Installation/Operator:
    SchneiderElectric-SquareD_00712_INST.pdf
    Prop 65 Warning:
    Yes
    Catalog:
    SchneiderElectric-SquareD_03392_11_16_CAT.pdf
    Country of Origin:
    United States
    MSRP $95.00
    Surplus $135.66
    Qty in Cart: 0
    Price:
    MSRP $95.00
    Surplus $135.66
    Subtotal:
  • Total: items /

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