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 NGB3B125B Miniature Circuit Breakers (MCBs) 3P 125A
MSRP $4,160.00Surplus $650.37SKU: C15-7630 Brand: Siemens MPN: NGB3B125B UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7630
- Country of Origin:
- Mexico
MSRP $4,160.00Surplus $650.37 -
Siemens P115GFI Miniature Circuit Breakers (MCBs)
MSRP $450.00Surplus $67.40Siemens P115GFI Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8787 Brand: Siemens MPN: P115GFI UPC: Shipping Weight: 0.35 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-8787
- Number of Poles:
- 1
MSRP $450.00Surplus $67.40 -
Siemens P120A Miniature Circuit Breakers (MCBs)
MSRP $66.00Surplus $23.08Siemens P120A Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8790 Brand: Siemens MPN: P120A UPC: Shipping Weight: 0.20 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-8790
- Number of Poles:
- 1
MSRP $66.00Surplus $23.08 -
Siemens P120X Miniature Circuit Breakers (MCBs)
MSRP $141.00Surplus $14.99Siemens P120X Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8794 Brand: Siemens MPN: P120X UPC: Shipping Weight: 0.25 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-8794
- Number of Poles:
- 1
MSRP $141.00Surplus $14.99 -
Siemens P130GF Miniature Circuit Breakers (MCBs)
MSRP $312.00Surplus $68.51Siemens P130GF Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8792 Brand: Siemens MPN: P130GF UPC: Shipping Weight: 0.40 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-8792
- Number of Poles:
- 1
MSRP $312.00Surplus $68.51 -
Siemens P150 Molded Case Breakers (MCCBs)
MSRP $80.00Surplus $21.64Siemens P150 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-8793 Brand: Siemens MPN: P150 UPC: Shipping Weight: 0.25 lbs. Shipping Height: 2.00 In. Shipping Length: 4.00 In...- SKU:
- C15-8793
MSRP $80.00Surplus $21.64 -
Siemens P1E30MC250C Circuit Breaker Accessories
MSRP $570.83Surplus $290.80SKU: C15-11525 Brand: Siemens MPN: P1E30MC250C UPC: Shipping Weight: 20.30 lbs. Shipping Height: 15.00 In. Shipping Length: 38.00 In. Shipping Width: 7.00 In...- SKU:
- C15-11525
- Type:
- Convertible Main Lug, Unassembled
- Series:
- P1
- Catalog:
- SiemensAG_01834_15_16_CAT.pdf
- Short Description:
- 480 VAC Star/277 VAC, 250 A, 3-Phase 4-Wire, 30-Circuit, Copper, Panelboard Interior
- Data Sheet:
- SiemensAG_06802_1_DATA.pdf
MSRP $570.83Surplus $290.80 -
Siemens P1E42MC400C Circuit Breaker Accessories
MSRP $2,380.00Surplus $1,102.92SKU: C15-11526 Brand: Siemens MPN: P1E42MC400C UPC: Shipping Weight: 49.00 lbs. Shipping Height: 15.00 In. Shipping Length: 64.00 In. Shipping Width: 7.00 In...- SKU:
- C15-11526
- Short Description:
- 480 VAC Star/277 VAC, 400 A, 3-Phase 4-Wire, 42-Circuit, Copper, Panelboard Interior
- Type:
- Convertible Main Lug, Unassembled
- Catalog:
- SiemensAG_01834_15_16_CAT.pdf
- Data Sheet:
- SiemensAG_06812_1_DATA.pdf
MSRP $2,380.00Surplus $1,102.92 -
Siemens P1X42MC400C Circuit Breaker Accessories
MSRP $1,074.46Surplus $723.28SKU: C15-11528 Brand: Siemens MPN: P1X42MC400C UPC: Shipping Weight: 48.00 lbs. Shipping Height: 15.00 In. Shipping Length: 64.00 In. Shipping Width: 7.00 In...- SKU:
- C15-11528
- Catalog:
- SiemensAG_01834_15_16_CAT.pdf
- Type:
- Convertible Main Lug, Unassembled
- Series:
- P1
- Short Description:
- 208 VAC Star/120 VAC, 400 A, 3-Phase 4-Wire, 42-Circuit, Copper, Panelboard Interior
- Data Sheet:
- SiemensAG_06835_1_DATA.pdf
MSRP $1,074.46Surplus $723.28 -
Siemens P2030 Miniature Circuit Breakers (MCBs)
MSRP $185.00Surplus $62.43Siemens P2030 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8798 Brand: Siemens MPN: P2030 UPC: Shipping Weight: 0.30 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-8798
- Number of Poles:
- 2
MSRP $185.00Surplus $62.43 -
Siemens P215 Molded Case Breakers (MCCBs)
Surplus $66.55Siemens P215 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-4675 Brand: Siemens MPN: P215 UPC: Shipping Weight: 0.50 lbs. Shipping Height: 4.00 In. Shipping Length: 4.00 In...- SKU:
- C15-4675
- Frame Type:
- P
- Voltage Rating:
- 240 V
- Current Rating:
- 15 A
- Number of Poles:
- 2
- Short Description:
- Siemens 15 A, 2 Pole, 240 V, Molded Case Circuit Breakers
Surplus $66.55 -
Siemens P220A Miniature Circuit Breakers (MCBs)
MSRP $291.00Surplus $92.58Siemens P220A Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8795 Brand: Siemens MPN: P220A UPC: Shipping Weight: 0.45 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-8795
- Number of Poles:
- 2
MSRP $291.00Surplus $92.58 -
Siemens Q11500S01 Miniature Circuit Breakers (MCBs) EA
MSRP $300.00Surplus $119.04SKU: C15-10522 Brand: Siemens MPN: Q11500S01 UPC: 78364323794 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10522
- TS PIK:
- 115559473
- Number of Poles:
- 1
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Type:
- Thermal and Fixed Magnetic
- Interrupting Rating:
- 10 kA
- Used On:
- Loadcenter
- Short Description:
- 120/240 VAC, 15 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, 120 VAC Shunt Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Current Rating:
- 15 A
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Mounting:
- Plug-On
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_06962_1_DATA.pdf
- Country of Origin:
- Mexico
MSRP $300.00Surplus $119.04 -
Siemens Q115DF Miniature Circuit Breakers (MCBs) EA
MSRP $120.00Surplus $89.10SKU: C15-10523 Brand: Siemens MPN: Q115DF UPC: 88762181730 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10523
- TS PIK:
- 125704271
- Short Description:
- 120 V, 15 A, 10 kA, 1-Pole, Plug-On Mount, QFGA2, Self-Test, Arc Fault/Ground Fault, Circuit Breaker
- Current Rating:
- 15 A
- Voltage Rating:
- 120 V
- Interrupting Rating:
- 10 kA
- Used On:
- Load Center and Panelboard
- Catalog:
- SiemensAG_01502_1_14_CAT.pdf
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_01533_1_DATA.pdf
- Size:
- 3 Inch Width x 1 Inch Depth x 4.5 Inch Height
- Country of Origin:
- Philippines
MSRP $120.00Surplus $89.10 -
Siemens Q115DFN Miniature Circuit Breakers (MCBs) EA
MSRP $120.00Surplus $81.00SKU: C15-10524 Brand: Siemens MPN: Q115DFN UPC: 80476690657 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10524
- TS PIK:
- 128131349
- Terminal Type:
- Load Lug
- Voltage Rating:
- 120 VAC
- Mounting:
- Plug-On
- Number of Poles:
- 1
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_09213_7_19_CAT.pdf
- Short Description:
- 120 VAC, 15 A, 10 kA, 1-Pole, Load Lug Terminal, QFGA2N Frame, Plug-On Mount, Arc Fault/Ground Fault, Neutral, Low Vage, Circuit Breaker
- Installation/Operator:
- SiemensAG_00702_INST.pdf
- Current Rating:
- 15 A
- Type:
- Low Vage, Neutral
- Used On:
- Load Center
- Wire Size:
- 14 to 10 AWG (Copper), 12 to 10 AWG (Aluminum)
- Country of Origin:
- Philippines
MSRP $120.00Surplus $81.00 -
Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph
MSRP $123.00Surplus $20.89Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2729 Brand: Siemens MPN: Q115H UPC: 783643156319 Shipping Weight: 0.30 Shipping Height: 1.00 In...- SKU:
- C15-2729
- Type:
- Thermal and Fixed Magnetic
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Volts:
- 120 VAC at 50/60 Hz
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 1
- Mounting:
- Plug-In
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 15 A, 22 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QPH Frame, Thermal Magnetic Trip Unit
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_06965_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
MSRP $123.00Surplus $20.89 -
Siemens Q12000S01 Shunt Trips 120V
MSRP $307.00Surplus $106.40Siemens Q12000S01 Shunt Trips 120V​ ARCA SKU: A13-1401 Brand: Siemens MPN: Q12000S01 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In...- SKU:
- A13-1401
- TS PIK:
- 21367397
- Terminal Type:
- Load Lug
- Type:
- Thermal and Fixed Magnetic
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Short Description:
- 120/240 VAC, 20 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, 120 VAC Shunt Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Current Rating:
- 20 A
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Number of Poles:
- 1
- Used On:
- Loadcenter
- Data Sheet:
- SiemensAG_06966_1_DATA.pdf
- Mounting:
- Plug-On
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Country of Origin:
- Mexico
MSRP $307.00Surplus $106.40 -
Siemens Q120DF Miniature Circuit Breakers (MCBs) EA
MSRP $120.00Surplus $89.10SKU: C15-10525 Brand: Siemens MPN: Q120DF UPC: 88762181732 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10525
- TS PIK:
- 125704273
- Current Rating:
- 20 A
- Size:
- 3 Inch Width x 1 Inch Depth x 4.5 Inch Height
- Short Description:
- 120 V, 20 A, 10 kA Interrupt, 1-Pole, Plug-On Mount, QFGA2/QFGAH2/HQFGA2-Frame, Self-Test, Arc Fault/Ground Fault, Circuit Breaker
- Voltage Rating:
- 120 VAC
- Used On:
- Load Center and Panelboard
- Data Sheet:
- SiemensAG_09373_1_2_DATA.pdf
- Catalog:
- SiemensAG_23945_7_19_CAT.pdf
- Mounting:
- Plug-On
- Installation/Operator:
- SiemensAG_00694_INST.pdf
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Philippines
MSRP $120.00Surplus $89.10 -
Siemens Q120DFN Molded Case Breakers (MCCBs) EA
MSRP $89.50Surplus $51.70Siemens Q120DFN Molded Case Breakers (MCCBs) EA​ ARCA SKU: C15-9303 Brand: Siemens MPN: Q120DFN UPC: 80476690659 Shipping Weight: 0.25 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-9303
- Number of Poles:
- 1
- Voltage Rating:
- 120 VAC
- Installation/Operator:
- SiemensAG_00694_INST.pdf
- Type:
- Low Vage, Neutral, Dual Function
- Short Description:
- 120 VAC, 20 A, 10 kA, 5 mA, 1-Pole, QFGA2N-Frame, Plug-On Mount, Neutral, Low Vage, Dual Function, Arc Fault/Ground Fault, Circuit Breaker
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_23945_7_19_CAT.pdf
- Current Rating:
- 20 A
- Used On:
- Load Center
- Mounting:
- Plug-On
- Country of Origin:
- Philippines
MSRP $89.50Surplus $51.70 -
Siemens Q120H Miniature Circuit Breakers (MCBs) 120V
MSRP $94.25Surplus $13.16Siemens Q120H Miniature Circuit Breakers (MCBs) 120V​ ARCA SKU: C15-6185 Brand: Siemens MPN: Q120H UPC: 78364315632 Shipping Weight: 0.30 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6185
- TS PIK:
- 21366717
- Short Description:
- 120/240 VAC, 20 A, 22 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QPH Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Type:
- Thermal and Fixed Magnetic
- Terminal Type:
- Load Lug
- Current Rating:
- 20 A
- Used On:
- Loadcenter
- Data Sheet:
- SiemensAG_06969_1_DATA.pdf
- Voltage Rating:
- 120 VAC
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Number of Poles:
- 1
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Country of Origin:
- Mexico
MSRP $94.25Surplus $13.16