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.
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Air Circuit Breakers (ACBs)
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Din Rail Mounted Circuit Breakers
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Main Breakers
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Miniature Circuit Breakers (MCBs)
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Molded Case Breakers (MCCBs)
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Motor Circuit Protector (MCPs)
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Circuit Breaker Accessories
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Siemens QN2175RH Miniature Circuit Breakers (MCBs) EA
MSRP $822.00Surplus $335.02SKU: C15-10591 Brand: Siemens MPN: QN2175RH UPC: 78364321418 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10591
- TS PIK:
- 117091806
- Country of Origin:
- Mexico
MSRP $822.00Surplus $335.02 -
Siemens QN2200 Miniature Circuit Breakers (MCBs) QN 2P 200A 120/240VAC
MSRP $817.00Surplus $195.51SKU: C15-1491 Brand: Siemens MPN: QN2200 UPC: 78364320429 Shipping Weight: 1.60 lbs. Shipping Height: 2.50 In. Shipping Length: 7.80 In. Shipping Width: 4.10 In...- SKU:
- C15-1491
- Series:
- QN
- Type:
- Thermal Magnetic
- Type:
- Main/Branch
- Type:
- Common Trip
- Approval:
- UL 489
- Size:
- 1.9 Inch W x 3.5 Inch D x 6.65 Inch H
- Volts:
- 120/240 VAC (UL)
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA (UL)
- Terminal Type:
- Load Lug
- Wire Size:
- 1 AWG to 300 KCMIL (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 200 A, 10 kA, 2-Pole, Plug-In Mount, QN Frame, Thermal Magnetic Trip Unit, Non-Reversible
- Catalog:
- SiemensAG_00564_7_24_CAT.pdf
- Data Sheet:
- SiemensAG_01530_1_DATA.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Current Rating:
- 200 A
- Country of Origin:
- Mexico
MSRP $817.00Surplus $195.51 -
Siemens QP2-B050 Miniature Circuit Breakers (MCBs)
MSRP $75.00Surplus $11.91Siemens QP2-B050 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8844 Brand: Siemens MPN: QP2-B050 UPC: Shipping Weight: 0.60 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8844
- Number of Poles:
- 2
MSRP $75.00Surplus $11.91 -
Siemens QR22B125 Molded Case Breakers (MCCBs) EA
MSRP $1,046.00Surplus $375.00SKU: C15-10593 Brand: Siemens MPN: QR22B125 UPC: 80476613537 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10593
- TS PIK:
- 127022977
- Country of Origin:
- Mexico
MSRP $1,046.00Surplus $375.00 -
Siemens QR22B200 Molded Case Breakers (MCCBs) QR2 2P 200A 240V 50/60Hz 1Ph EA
MSRP $966.00Surplus $170.60SKU: C15-4872 Brand: Siemens MPN: QR22B200 UPC: 804766136108 Shipping Weight: 2.80 lbs. Shipping Height: 4.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In...- SKU:
- C15-4872
- Type:
- Molded Case
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Size:
- 3 Inch Width x 2.53 Inch Depth x 7 Inch Height
- Volts:
- 240 VAC
- Amps:
- 200 A
- Poles:
- 2
- Interrupting Rating:
- 10 kA at 240 VAC
- Frame Type:
- QR
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 240 VAC, 200 A at 40 Deg C, 10 kA, 2-Pole, QR Frame, Thermal Magnetic Trip Unit
- Catalog:
- SiemensAG_00564_7_40_CAT.pdf
- Voltage Rating:
- 240 VAC
- Current Rating:
- 200 A
- Number of Poles:
- 2
- Country of Origin:
- MEX
MSRP $966.00Surplus $170.60 -
Siemens QR23B125 Molded Case Breakers (MCCBs)
MSRP $2,569.00Surplus $731.50SKU: C15-8845 Brand: Siemens MPN: QR23B125 UPC: 80476613663 Shipping Weight: 3.95 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-8845
- TS PIK:
- 113289646
- Country of Origin:
- Mexico
MSRP $2,569.00Surplus $731.50 -
Siemens QR23B175 Molded Case Breakers (MCCBs) EA
MSRP $2,000.00Surplus $835.83SKU: C15-10599 Brand: Siemens MPN: QR23B175 UPC: 80476613665 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10599
- TS PIK:
- 127022993
- Country of Origin:
- Mexico
- Frame Type:
- QR
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Installation/Operator:
- SiemensAG_00598_INST.pdf
- Interrupting Rating:
- 10 kA at 240 VAC
- Current Rating:
- 175 A
- Catalog:
- SiemensAG_09175_17_1_17_10_CAT.pdf
- Terminal Type:
- Not Included
- Type:
- Molded Case, Low Vage, Thermal Magnetic
- Maximum AC Voltage Rating:
- 240 V
- Size:
- 4.5 Inch Width x 2.53 Inch Depth x 7 Inch Height
- Number of Poles:
- 3
MSRP $2,000.00Surplus $835.83 -
Siemens QR23B225 Molded Case Breakers (MCCBs) EA
MSRP $2,827.00Surplus $397.78SKU: C15-9349 Brand: Siemens MPN: QR23B225 UPC: 80476613667 Shipping Weight: 4.10 lbs. Shipping Height: 4.25 In. Shipping Length: 7.75 In. Shipping Width: 5.25 In...- SKU:
- C15-9349
- Frame Type:
- QR
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Current Rating:
- 225 A
- Number of Poles:
- 3
- Maximum AC Voltage Rating:
- 240 V
- Type:
- Molded Case, Low Vage, Thermal Magnetic
- Terminal Type:
- Not Included
- Interrupting Rating:
- 10 kA at 240 VAC
- Catalog:
- SiemensAG_09175_17_1_17_10_CAT.pdf
- Size:
- 4.5 Inch Width x 2.53 Inch Depth x 7 Inch Height
- Installation/Operator:
- SiemensAG_00598_INST.pdf
- Short Description:
- BREAKER QR 3P 225A 240V 10kA
- Country of Origin:
- Mexico
MSRP $2,827.00Surplus $397.78 -
Siemens QRH22B100 Molded Case Breakers (MCCBs) EA
MSRP $2,200.00Surplus $761.08SKU: C15-10602 Brand: Siemens MPN: QRH22B100 UPC: 80476613620 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10602
- TS PIK:
- 127183115
- Country of Origin:
- Mexico
MSRP $2,200.00Surplus $761.08 -
Siemens QRH22B125 Molded Case Breakers (MCCBs) EA
MSRP $2,496.00Surplus $826.20SKU: C15-10603 Brand: Siemens MPN: QRH22B125 UPC: 80476613621 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10603
- TS PIK:
- 127022981
- Country of Origin:
- Mexico
MSRP $2,496.00Surplus $826.20 -
Siemens QRH22B150 Molded Case Breakers (MCCBs) EA
MSRP $2,000.00Surplus $660.08SKU: C15-10604 Brand: Siemens MPN: QRH22B150 UPC: 80476613622 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10604
- TS PIK:
- 126908839
- Country of Origin:
- Mexico
MSRP $2,000.00Surplus $660.08 -
Siemens QRH22B175 Molded Case Breakers (MCCBs) EA
MSRP $2,496.00Surplus $769.20SKU: C15-10605 Brand: Siemens MPN: QRH22B175 UPC: 80476613623 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10605
- TS PIK:
- 127022982
- Country of Origin:
- Mexico
MSRP $2,496.00Surplus $769.20 -
Siemens QRH22B200 Molded Case Breakers (MCCBs) EA
MSRP $2,000.00Surplus $717.08SKU: C15-10606 Brand: Siemens MPN: QRH22B200 UPC: 80476613624 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10606
- TS PIK:
- 126824579
- Country of Origin:
- Mexico
MSRP $2,000.00Surplus $717.08 -
Siemens QRH23B125 Molded Case Breakers (MCCBs) EA
MSRP $3,811.00Surplus $1,305.50SKU: C15-10608 Brand: Siemens MPN: QRH23B125 UPC: 80476613677 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10608
- TS PIK:
- 126908866
- Country of Origin:
- Mexico
MSRP $3,811.00Surplus $1,305.50 -
Siemens QRH23B150 Molded Case Breakers (MCCBs) EA
MSRP $3,811.00Surplus $1,305.50SKU: C15-10609 Brand: Siemens MPN: QRH23B150 UPC: 80476613678 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10609
- TS PIK:
- 126908867
- Frame Type:
- QR
- Interrupting Rating:
- 25 kA at 240 VAC
- Installation/Operator:
- SiemensAG_00598_INST.pdf
- Country of Origin:
- Mexico
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Type:
- Molded Case, Low Vage, Thermal Magnetic
- Current Rating:
- 150 A
- Maximum AC Voltage Rating:
- 240 V
- Catalog:
- SiemensAG_09175_17_1_17_10_CAT.pdf
- Terminal Type:
- Load Lug
- Size:
- 4.5 Inch Width x 2.53 Inch Depth x 7 Inch Height
MSRP $3,811.00Surplus $1,305.50 -
Siemens QRH23B225 Molded Case Breakers (MCCBs) EA
MSRP $3,000.00Surplus $1,127.08SKU: C15-10610 Brand: Siemens MPN: QRH23B225 UPC: 80476613681 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10610
- TS PIK:
- 126824610
- Country of Origin:
- Mexico
- Catalog:
- SiemensAG_57234_3_4_CAT.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Installation/Operator:
- SiemensAG_01042_INST.pdf
- Interrupting Rating:
- 25 kA at 240 VAC
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 240 VAC, 225 A, 25 kA Interrupt, 3-Pole, QRH2-Frame, Thermal Magnetic, Molded Case Circuit Breaker
- Frame Type:
- QR
- Current Rating:
- 225 A
- Type:
- Molded Case, Low Vage, Thermal Magnetic
- Terminal Type:
- Load Lug
- Size:
- 4.5 Inch Width x 2.53 Inch Depth x 7 Inch Height
MSRP $3,000.00Surplus $1,127.08 -
Siemens QS2150H Molded Case Breakers (MCCBs) EA
MSRP $414.00Surplus $124.50Siemens QS2150H Molded Case Breakers (MCCBs) EA​ ARCA SKU: C15-9617 Brand: Siemens MPN: QS2150H UPC: 78308793530 Shipping Weight: 2.20 lbs. Shipping Height: 7.89 In. Shipping...- SKU:
- C15-9617
- Current Rating:
- 150 A
- Series:
- QS
- Voltage Rating:
- 120/240 VAC
- Terminal Type:
- Load Lug
- Size:
- 2.2 Inch W x 2.66 Inch D x 7.89 Inch H
- Short Description:
- 120/240 VAC, 150 A, 22 kA, 2-Pole, Plug-In Mount, QSH Frame, Thermal Magnetic Trip Unit, Main Circuit Breaker for Load Center
- Number of Poles:
- 2
- Data Sheet:
- SiemensAG_07132_1_DATA.pdf
- Interrupting Rating:
- 22 kA
- Type:
- Main/Branch, Molded Case
- Catalog:
- SiemensAG_00564_7_25_CAT.pdf
- Country of Origin:
- Mexico
MSRP $414.00Surplus $124.50 -
Siemens QSA1515SPD Motor Circuit Protector (MCPs) EA
MSRP $350.00Surplus $132.42SKU: C15-10611 Brand: Siemens MPN: QSA1515SPD UPC: 4089228081 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10611
- TS PIK:
- 123671379
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_07135_1_DATA.pdf
- Short Description:
- 120/240 VAC, 15 A, 10 kA, (2) 1-Pole, 360 Joule Line to Neutral/720 Joule Line to Line, Plug-On Mount, QP Frame, Thermal Magnetic, Miniature Circuit Breaker and Surge Protective Device
- Current Rating:
- 15 A
- Type:
- Thermal Magnetic Trip
- Terminal Type:
- Line/Load Lug
- Size:
- 2 Inch Width
- Catalog:
- SiemensAG_00564_7_28_CAT.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 1449, CSA
MSRP $350.00Surplus $132.42 -
Siemens RH0EB0 Circuit Breaker Accessories EA
MSRP $58.00Surplus $9.84Siemens RH0EB0 Circuit Breaker Accessories EA​ ARCA SKU: C15-8987 Brand: Siemens MPN: RH0EB0 UPC: Shipping Weight: 0.70 lbs. Shipping Height: 3.00 In. Shipping Length: 7...- SKU:
- C15-8987
MSRP $58.00Surplus $9.84 -
Siemens RHOH4 Everything Else EA
MSRP $423.08Surplus $91.89Siemens RHOH4 Everything Else EA​ ARCA SKU: E30-8872 Brand: Siemens MPN: RHOH4 UPC: 78364320525 Shipping Weight: 3.60 lbs. Shipping Height: 6.00 In. Shipping Length: 11...- SKU:
- E30-8872
- Short Description:
- NEMA 4/4X, Stainless, Metal, Door Mount, Square, Lever, Rotary Operating Handle for 3VA Molded Case Circuit Breaker
- Installation/Operator:
- SiemensAG_00467_INST.pdf
- Type:
- Lever
- Catalog:
- SiemensAG_01698_17_52_17_126_18_47_CAT.pdf
- Country of Origin:
- Mexico
- Used On:
- Molded Case Circuit Breaker
MSRP $423.08Surplus $91.89