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.
-
Air Circuit Breakers (ACBs)
-
Din Rail Mounted Circuit Breakers
-
Main Breakers
-
Miniature Circuit Breakers (MCBs)
-
Molded Case Breakers (MCCBs)
-
Motor Circuit Protector (MCPs)
-
Circuit Breaker Accessories
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Schneider Electric MG17444 Miniature Circuit Breakers (MCBs) EA
MSRP $780.00Surplus $149.07Schneider Electric MG17444 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-6761 Brand: Schneider Electric MPN: MG17444 UPC: Shipping Weight: 0.50 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6761
- Terminal Type:
- Box Line Lug, Box Load Lug
- Short Description:
- 240/277/415/440/480 VAC 50/60 Hz, 125 VDC, 5 A, 5/6/10/20 kA, 2-Pole, Gray, Thermal Magnetic, Supplementary Protector
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 277 VAC or 480 VAC Star/277 VAC (UL/CSA), 10 kA at 240 VAC, 5 kA at 415 VAC (IEC), 10 kA at 48/65/125 VDC
- Number of Poles:
- 2
- Current Rating:
- 5 A
- Voltage Rating:
- 120/240/277 VAC at 50/60 Hz, 480 VAC Star/277 VAC at 50/60 Hz (UL/CSA), 240/415 VAC at 50/60 Hz (IEC), 48/65/125 VDC
- Data Sheet:
- SchneiderElectric_00975_1_2_DATA.pdf
- Wire Size:
- 14 to 4 AWG (Copper)
- Type:
- Current Limiting, Thermal Magnetic
- Size:
- 1.42 Inch W x 2.76 Inch D x 3.19 Inch H
- Installation/Operator:
- SchneiderElectric_00172_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_00103_23_CAT.pdf
- Mounting:
- DIN Rail
MSRP $780.00Surplus $149.07 -
Schneider Electric MGN61301 Miniature Circuit Breakers (MCBs) 1P 30A
MSRP $225.00Surplus $46.08Schneider Electric MGN61301 Miniature Circuit Breakers (MCBs) 1P 30A​ ARCA SKU: C15-6756 Brand: Schneider Electric MPN: MGN61301 UPC: Shipping Weight: 0.40 lbs. Shipping Height: 6...- SKU:
- C15-6756
- Number of Poles:
- 1
MSRP $225.00Surplus $46.08 -
Schneider Electric MGN61303 Molded Case Breakers (MCCBs) 1P 3A
MSRP $100.00Surplus $24.12Schneider Electric MGN61303 Molded Case Breakers (MCCBs) 1P 3A​ ARCA SKU: C15-6758 Brand: Schneider Electric MPN: MGN61303 UPC: 785901489252 Shipping Weight: 0.40 lbs. Shipping...- SKU:
- C15-6758
- Catalog:
- SchneiderElectric-SquareD_00103_20_CAT.pdf
- Current Rating:
- 3 A
- Interrupting Rating:
- 10 kA at 277 VAC
- Voltage Rating:
- 277 VAC
- Short Description:
- 277 VAC 50/60 Hz, 3 A, 10 kA, 18 to 16 AWG, 1-Pole, DIN Rail Mount, Gray, Thermal Magnetic, Miniature Circuit Breaker
- Size:
- 18 MM W x 68.7 MM D x 141 MM H
- Type:
- Miniature, Thermal Magnetic
- Terminal Type:
- Single Barrel
- Number of Poles:
- 1
- Data Sheet:
- SchneiderElectric_01067_1_2_DATA.pdf
- Approval:
- UL 489, CSA C22.2, CCC, IEC
- Wire Size:
- 18 to 16 AWG
MSRP $100.00Surplus $24.12 -
Schneider Electric NB111015 Molded Case Breakers (MCCBs)
MSRP $200.00Surplus $21.83Schneider Electric NB111015 Molded Case Breakers (MCCBs)​ ARCA SKU: U00-5695 Brand: Schneider Electric MPN: NB111015 UPC: Shipping Weight: 0.40 lbs. Shipping Height: 5.00 In...- SKU:
- U00-5695
MSRP $200.00Surplus $21.83 -
Schneider Electric QO120PCAFIC Miniature Circuit Breakers (MCBs) QO 1P 20A 120V 50/60Hz 1Ph
MSRP $290.00Surplus $37.71Schneider Electric QO120PCAFIC Miniature Circuit Breakers (MCBs) QO 1P 20A 120V 50/60Hz 1Ph​ ARCA SKU: C15-3665 Brand: Schneider Electric MPN: QO120PCAFIC UPC: 785901978435 Shipping Weight: 0.55...- SKU:
- C15-3665
- Volts:
- 120 V
- Amps:
- 20 A
- Poles:
- 1
- Frequency Rating:
- 50/60 Hz
- Number of Poles:
- 1
- Current Rating:
- 20 A
- Series:
- Q
- Country of Origin:
- Mexico
MSRP $290.00Surplus $37.71 -
Siemens 21-B123ED6 Circuit Breaker Accessories
MSRP $950.00Surplus $156.16SKU: C15-8869 Brand: Siemens MPN: 21-B123ED6 UPC: Shipping Weight: 5.95 lbs. Shipping Height: 5.00 In. Shipping Length: 19.00 In. Shipping Width: 7.00 In. Product...- SKU:
- C15-8869
MSRP $950.00Surplus $156.16 -
Siemens 21-B134EH3 Circuit Breaker Accessories
MSRP $850.00Surplus $156.32Siemens 21-B134EH3 Circuit Breaker Accessories​ ARCA SKU: C15-8873 Brand: Siemens MPN: 21-B134EH3 UPC: Shipping Weight: 7.30 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-8873
MSRP $850.00Surplus $156.32 -
Siemens 21-B143QJ6 Circuit Breaker Accessories
MSRP $850.00Surplus $107.62Siemens 21-B143QJ6 Circuit Breaker Accessories​ ARCA SKU: C15-8874 Brand: Siemens MPN: 21-B143QJ6 UPC: Shipping Weight: 8.90 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-8874
MSRP $850.00Surplus $107.62 -
Siemens 3VA5222-5EC31-0AA0 Molded Case Breakers (MCCBs)
MSRP $3,226.00Surplus $993.06SKU: C15-11508 Brand: Siemens MPN: 3VA5222-5EC31-0AA0 UPC: 80476630828 Shipping Weight: 4.50 lbs. Shipping Height: 6.00 In. Shipping Length: 10.00 In. Shipping...- SKU:
- C15-11508
- TS PIK:
- 126815674
MSRP $3,226.00Surplus $993.06 -
Siemens 3VU1300-1NH00 Other Circuit Breakers EA
MSRP $280.00Surplus $40.08Siemens 3VU1300-1NH00 Other Circuit Breakers EA​ ARCA SKU: C15-9477 Brand: Siemens MPN: 3VU1300-1NH00 UPC: Shipping Weight: 0.70 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-9477
MSRP $280.00Surplus $40.08 -
Siemens 3VU9135-0AA00 Circuit Breaker Accessories EA
MSRP $36.00Surplus $7.98Siemens 3VU9135-0AA00 Circuit Breaker Accessories EA​ ARCA SKU: C15-9480 Brand: Siemens MPN: 3VU9135-0AA00 UPC: Shipping Weight: 0.35 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-9480
MSRP $36.00Surplus $7.98 -
Siemens 3VU9138-2AB00 Other Circuit Breakers EA
MSRP $920.00Surplus $181.74SKU: C15-9447 Brand: Siemens MPN: 3VU9138-2AB00 UPC: Shipping Weight: 0.65 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In. Product...- SKU:
- C15-9447
MSRP $920.00Surplus $181.74 -
Siemens 5SJ4340-8HG41 Miniature Circuit Breakers (MCBs) 40A
MSRP $283.29Surplus $70.68Siemens 5SJ4340-8HG41 Miniature Circuit Breakers (MCBs) 40A​ ARCA SKU: E30-10152 Brand: Siemens MPN: 5SJ4340-8HG41 UPC: 4001869321929 Shipping Weight: 1.15 lbs. Shipping Height: 3.00...- SKU:
- E30-10152
- Current Rating:
- 40 A
- Size:
- 54 Millimeter Width x 76.4 Millimeter Depth x 110 Millimeter Height
- Short Description:
- 240 VAC, 60/125 VDC, 40 A, 10 kA, 3-Pole, 70 MM Device Depth, 14 to 4 AWG Solid/Stranded Copper, Line/Load Screw Terminal, 35 MM DIN Rail Mount, Standard Frame, Curve D, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Voltage Rating:
- 240 VAC, 60/125 VDC
- Interrupting Rating:
- 10 kA
- Type:
- Thermal Magnetic
- Terminal Type:
- Line/Load Screw
- Wire Size:
- 14 to 4 AWG Copper
- Series:
- 5SJ4
- Number of Poles:
- 3
- Catalog:
- SiemensAG_01744_16_2-16_10_CAT.pdf
- Mounting:
- DIN Rail
- Approval:
- UL 489, CSA C22.2
MSRP $283.29Surplus $70.68 -
Siemens 5SX2-203-8 Miniature Circuit Breakers (MCBs) EA
MSRP $220.00Surplus $31.08Siemens 5SX2-203-8 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-8986 Brand: Siemens MPN: 5SX2-203-8 UPC: 4001869031347 Shipping Weight: 0.60 lbs. Shipping Height: 2.00 In...- SKU:
- C15-8986
MSRP $220.00Surplus $31.08 -
Siemens 5SX2106-7 Miniature Circuit Breakers (MCBs) EA
MSRP $125.00Surplus $27.05Siemens 5SX2106-7 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-8989 Brand: Siemens MPN: 5SX2106-7 UPC: Shipping Weight: 0.30 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-8989
- Short Description:
- 230/400 VAC, 6 A, 6 kA, 1-Pole, 55 MM Mounting Depth, Curve C, Miniature Circuit Breaker
- Voltage Rating:
- 230/400 V
- Catalog:
- SiemensAG_01748_12_4_CAT.pdf
- Number of Poles:
- 1
- Current Rating:
- 6 A
- Series:
- 5SX2
- Interrupting Rating:
- 6 kA
MSRP $125.00Surplus $27.05 -
Siemens A01MN64 Circuit Breaker Accessories
MSRP $702.00Surplus $101.03SKU: C15-8785 Brand: Siemens MPN: A01MN64 UPC: 78364321619 Shipping Weight: 1.30 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-8785
- Catalog:
- SiemensAG_01796_7_132_CAT.pdf
- Country of Origin:
- Mexico
- Used On:
- 800 A MD/SMD Frame, 1200 A ND/SND Frame, 1600 A PD/SPD Frame, 2000 A RD Frame Molded Case Circuit Breaker
- Short Description:
- 480 VAC, 250 VDC, 1NO-1NC, Form C, Auxiliary Switch for MD/ND/PD/RD Frame Circuit Breaker
- Installation/Operator:
- SiemensAG_00212_INST.pdf
MSRP $702.00Surplus $101.03 -
Siemens B00ED64 Circuit Breaker Accessories EA
MSRP $800.00Surplus $236.56SKU: C15-10299 Brand: Siemens MPN: B00ED64 UPC: 78364323542 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10299
- TS PIK:
- 115554936
- Country of Origin:
- Mexico
MSRP $800.00Surplus $236.56 -
Siemens B115 Miniature Circuit Breakers (MCBs)
MSRP $89.00Surplus $7.93Siemens B115 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6105 Brand: Siemens MPN: B115 UPC: 78364326341 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6105
- TS PIK:
- 21368372
MSRP $89.00Surplus $7.93 -
Siemens B115 Miniature Circuit Breakers (MCBs) EA
MSRP $89.00Surplus $12.72Siemens B115 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9618 Brand: Siemens MPN: B115 UPC: 78364326341 Shipping Weight: 0.30 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-9618
- TS PIK:
- 21368372
- Interrupting Rating:
- 10 kA
- Current Rating:
- 15 A
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Number of Poles:
- 1
- Short Description:
- 120 VAC, 15 A, 10 kA, 1-Pole, Bolt-On Mount, Molded Case, Branch, Panelboard Circuit Breaker
- Data Sheet:
- SiemensAG_05158_1_DATA.pdf
- Used On:
- Panelboard
- Voltage Rating:
- 120 VAC
- Mounting:
- Bolt-On
MSRP $89.00Surplus $12.72 -
Siemens B115H Miniature Circuit Breakers (MCBs) 15A
MSRP $165.00Surplus $19.80SKU: C15-6209 Brand: Siemens MPN: B115H UPC: 78364326381 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 1.00 In...- SKU:
- C15-6209
- TS PIK:
- 115370793
- Short Description:
- 120 VAC, 15 A, 22 kA, 1-Pole, Bolt-On Mount, Molded Case, Branch, Panelboard Circuit Breaker
- Voltage Rating:
- 120 VAC
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Interrupting Rating:
- 22 kA at 120 VAC (UL)
- Number of Poles:
- 1
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Data Sheet:
- SiemensAG_05160_1_DATA.pdf
- Current Rating:
- 15 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic, Branch
- Country of Origin:
- Mexico
MSRP $165.00Surplus $19.80