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
-
Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A
MSRP $139.05Surplus $24.41Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A​ ARCA SKU: C15-6317 Brand: Murray MPN: MQ220 UPC: 04089252820 Shipping Weight: 3.70 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6317
- TS PIK:
- 120071665
- Short Description:
- 20 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Type:
- Common Trip
- Current Rating:
- 20 A
- Number of Poles:
- 2
- Mounting:
- Plug-On
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_06682_1_DATA.pdf
- Voltage Rating:
- 120/240 V
- Country of Origin:
- Mexico
MSRP $139.05Surplus $24.41 -
Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A
MSRP $139.05Surplus $22.31Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A​ ARCA SKU: C15-6318 Brand: Murray MPN: MQ240 UPC: 04089252822 Shipping Weight: 4.45 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6318
- TS PIK:
- 120071673
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_06684_1_DATA.pdf
- Mounting:
- Plug-On
- Number of Poles:
- 2
- Current Rating:
- 40 A
- Short Description:
- 40 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Type:
- Common Trip
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $139.05Surplus $22.31 -
Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A
MSRP $146.25Surplus $24.64Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A​ ARCA SKU: C15-6319 Brand: Murray MPN: MQ250 UPC: 04089252823 Shipping Weight: 1.30 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6319
- TS PIK:
- 120071678
- Mounting:
- Plug-On
- Type:
- Common Trip
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Current Rating:
- 50 A
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_06685_1_DATA.pdf
- Short Description:
- 50 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $146.25Surplus $24.64 -
Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A
MSRP $146.25Surplus $15.48Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A​ ARCA SKU: C15-6320 Brand: Murray MPN: MQ260 UPC: 04089252824 Shipping Weight: 2.30 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6320
- TS PIK:
- 120072355
- Voltage Rating:
- 120/240 VAC
- Type:
- Common Trip
- Short Description:
- 60 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Number of Poles:
- 2
- Mounting:
- Plug-On
- Current Rating:
- 60 A
- Data Sheet:
- SiemensAG_06686_1_DATA.pdf
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Mexico
MSRP $146.25Surplus $15.48 -
Murray MQJ2150 Miniature Circuit Breakers (MCBs)
MSRP $1,133.00Surplus $145.51SKU: C15-7648 Brand: Murray MPN: MQJ2150 UPC: 04089252490 Shipping Weight: 3.30 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-7648
- TS PIK:
- 123474991
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $1,133.00Surplus $145.51 -
Murray MQJ3100 Miniature Circuit Breakers (MCBs)
MSRP $2,908.00Surplus $512.44SKU: C15-7650 Brand: Murray MPN: MQJ3100 UPC: 04089253114 Shipping Weight: 4.40 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-7650
- TS PIK:
- 120152629
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $2,908.00Surplus $512.44 -
Murray MQJ3150 Molded Case Breakers (MCCBs)
MSRP $2,996.00Surplus $417.70SKU: C15-7652 Brand: Murray MPN: MQJ3150 UPC: 04089252504 Shipping Weight: 4.55 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-7652
- TS PIK:
- 115459330
- Country of Origin:
- Mexico
MSRP $2,996.00Surplus $417.70 -
Murray MQJ3200 Molded Case Breakers (MCCBs)
MSRP $2,996.00Surplus $369.22SKU: C15-7653 Brand: Murray MPN: MQJ3200 UPC: 04089252510 Shipping Weight: 4.55 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-7653
- TS PIK:
- 120152672
- Number of Poles:
- 3
- Current Rating:
- 200 A
- Voltage Rating:
- 240 VAC
- Type:
- Molded Case, Common Trip
- Terminal Type:
- Load Lug
- Short Description:
- 240 VAC, 200 A, 10 kA, 3-Pole, 6 AWG to 300 KCMIL Copper/4 AWG to 300 KCMIL Aluminum, Lug Terminal, MQ Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Series:
- MQ
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Mexico
- Wire Size:
- 6 AWG to 300 KCMIL (Copper), 4 AWG to 300 KCMIL (Aluminum)
MSRP $2,996.00Surplus $369.22 -
Murray MQJ390 Miniature Circuit Breakers (MCBs)
MSRP $2,996.00Surplus $425.12SKU: C15-7651 Brand: Murray MPN: MQJ390 UPC: 04089253113 Shipping Weight: 4.40 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-7651
- TS PIK:
- 120152653
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $2,996.00Surplus $425.12 -
Murray Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V
MSRP $197.50Surplus $30.96Murray Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V​ ARCA SKU: C15-6219 Brand: Murray MPN: Q24030CT2 UPC: 78364308396 Shipping Weight: 0.80 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6219
- TS PIK:
- 115555490
- Used On:
- Loadcenter
- Series:
- QT
- Terminal Type:
- Lug
- Country of Origin:
- Mexico
- Type:
- Thermal/Fixed Magnetic, Common Trip, Quadplex
- Data Sheet:
- SiemensAG_07035_1_DATA.pdf
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum) Inside, 8 to 6 AWG (Copper)/8 to 4 AWG (Aluminum) Outside
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Catalog:
- SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
- Mounting:
- Plug-On
- Current Rating:
- 40/30 A
- Interrupting Rating:
- 10 kA
- Short Description:
- 120/240 VAC, 40/30 A, 10 kA, (2) 2-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-In Mount, QT Frame, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
MSRP $197.50Surplus $30.96 -
North American Breaker Company THQL32015 Miniature Circuit Breakers (MCBs) EA
MSRP $294.93Surplus $49.01North American Breaker Company THQL32015 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9496 Brand: North American Breaker Company MPN: THQL32015 UPC: 78316401300 Shipping Weight: 0.00 lbs...- SKU:
- C15-9496
- TS PIK:
- 555088
- Type:
- Thermal Magnetic, Compact
- Short Description:
- 240 VAC, 15 A, 10 kA, 3-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Non-Interchangeable/Internal Common Trip, Compact, Fixed Thermal Magnetic, Circuit Breaker
- Terminal Type:
- Plug-On
- Number of Poles:
- 3
- Voltage Rating:
- 120/240 VAC
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Current Rating:
- 15 A
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_31_CAT.pdf
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00499_1_CAD.pdf
- Mounting:
- Plug-On
MSRP $294.93Surplus $49.01 -
PHOENIX CONTACT ST 2 5-QUATTRO-PE Other Circuit Breakers
MSRP $800.00Surplus $126.13SKU: C15-11432 Brand: PHOENIX CONTACT MPN: ST 2 5-QUATTRO-PE UPC: Shipping Weight: 1.40 lbs. Shipping Height: 3.00 In. Shipping Length: 10.00 In. Shipping Width: 2...- SKU:
- C15-11432
MSRP $800.00Surplus $126.13 -
PHOENIX CONTACT STU 10/ 4X2 5 Other Circuit Breakers
MSRP $150.00Surplus $17.68PHOENIX CONTACT STU 10/ 4X2 5 Other Circuit Breakers​ ARCA SKU: C15-11431 Brand: PHOENIX CONTACT MPN: STU 10/ 4X2 5 UPC: Shipping Weight: 0.50 lbs. Shipping Height: 3.00 In...- SKU:
- C15-11431
MSRP $150.00Surplus $17.68 -
PHOENIX CONTACT UT 6-TMC M 6A Other Circuit Breakers
MSRP $33.00Surplus $11.88PHOENIX CONTACT UT 6-TMC M 6A Other Circuit Breakers​ ARCA SKU: C15-11430 Brand: PHOENIX CONTACT MPN: UT 6-TMC M 6A UPC: Shipping Weight: 0.10 lbs. Shipping Height: 4.00 In...- SKU:
- C15-11430
MSRP $33.00Surplus $11.88 -
Satco S29392 Everything Else
MSRP $580.77Surplus $348.46SKU: U00-2036 Brand: Satco MPN: S29392 UPC: 78590185503 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-2036
- TS PIK:
- 123619056
- Installation/Operator:
- Satco-NuvoLighting_00528_INST.pdf
- Short Description:
- 3.66" x 9.16", 36 W, 100 to 277 VAC 50/60 Hz, 4800 Lumen, 5000 K Natural Light, 80 CRI, 50000 Hr Life, 300D Beam Spread, White, Clear, E26 Medium Base, Corncob, Non-Dimmable, Wet Location, 150 W HID Equivalent, LED LA (12 per Case)
- Type:
- Non-Dimmable, Ballast Bypass
- Country of Origin:
- United States
MSRP $580.77Surplus $348.46 -
Schmersal SRB301LCI24VAC-DC Molded Case Breakers (MCCBs) EA
MSRP $448.00Surplus $78.93Schmersal SRB301LCI24VAC-DC Molded Case Breakers (MCCBs) EA​ ARCA SKU: C15-10993 Brand: Schmersal MPN: SRB301LCI24VAC-DC UPC: 4250116202027 Shipping Weight: 0.55 lbs. Shipping...- SKU:
- C15-10993
MSRP $448.00Surplus $78.93 -
Schneider Electric 48818 Miniature Circuit Breakers (MCBs) EA
MSRP $601.00Surplus $121.66Schneider Electric 48818 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-8558 Brand: Schneider Electric MPN: 48818 UPC: 13303430488184 Shipping Weight: 0.10 lbs. Shipping...- SKU:
- C15-8558
MSRP $601.00Surplus $121.66 -
Schneider Electric FJA140203 Molded Case Breakers (MCCBs) FJA 1P 20A 480V 50/60Hz 1Ph
MSRP $960.00Surplus $78.08Schneider Electric FJA140203 Molded Case Breakers (MCCBs) FJA 1P 20A 480V 50/60Hz 1Ph​ ARCA SKU: C15-3587 Brand: Schneider Electric MPN: FJA140203 UPC: 785901565871 Shipping Weight: 2.55 Shipping...- SKU:
- C15-3587
- Frame Type:
- F
- Voltage Rating:
- 480 V
- Current Rating:
- 20 A
- Number of Poles:
- 1
- Short Description:
- Square D, Powerpact, type FJA, 1P, 1PH, 20A, 277V, 65kA@480V, B phase circuit configuration, extra high interrupting capacity, 40°C, I-Line Style Plug-In, Thermal Magnetic, molded case circuit breakers
MSRP $960.00Surplus $78.08 -
Schneider Electric HOMT1520 Miniature Circuit Breakers (MCBs) HOMT 1P 15A/20A 120V 50/60Hz 1Ph
MSRP $52.00Surplus $21.44Schneider Electric HOMT1520 Miniature Circuit Breakers (MCBs) HOMT 1P 15A/20A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2161 Brand: Schneider Electric MPN: HOMT1520 UPC: 785901065418 Shipping Weight: 0.45...- SKU:
- C15-2161
- Type:
- Common Trip
- Approval:
- UL
- Size:
- 1 Inch Width x 2.98 Inch Depth x 3.13 Inch Height
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- Load Center
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 12 to 8 AWG (Aluminum)
- Short Description:
- 120/240 VAC, 15/20 A, 10 kA Interrupt, 1-Pole, 12 to 8 AWG Aluminum, Plug-In Mount, Box Lug Terminal, Tandem
- Catalog:
- SchneiderElectric_00257_1_20_7_23_CAT.pdf
- Installation/Operator:
- Eaton_00008_INST.pdf
- Manufacturer Warranty:
- Eaton_00009_WARR.pdf
- Current Rating:
- 20 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Data Sheet:
- SchneiderElectric-SquareD_13509_1_2_DATA.pdf
- Country of Origin:
- Mexico
MSRP $52.00Surplus $21.44 -
Schneider Electric HOMT2020240 Miniature Circuit Breakers (MCBs) HOMT 2P 20A/40A 120V 50/60Hz 2Ph
MSRP $120.00Surplus $77.14Schneider Electric HOMT2020240 Miniature Circuit Breakers (MCBs) HOMT 2P 20A/40A 120V 50/60Hz 2Ph​ ARCA SKU: C15-2176 Brand: Schneider Electric MPN: HOMT2020240 UPC: 785901377047 Shipping Weight: 4...- SKU:
- C15-2176
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2 Inch W x 2.98 Inch D x 3.13 Inch H
- Volts:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Amps:
- 32 A
- Used On:
- Homeline Load Center
- Poles:
- 1-Pole Outside
- Poles:
- 2-Pole Inside
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Screw ClA
- Wire Size:
- 12 to 6 AWG (Aluminum)
- Wire Size:
- 14 to 6 AWG (Copper)
- Short Description:
- 120/240 VAC, 20/40 A, 10 kA Interrupt, 2-Pole, 12 to 6 AWG Aluminum, 14 to 6 AWG Copper, Plug-In Mount, Box Lug Terminal, Quad Tandem
- Catalog:
- SchneiderElectric_00257_1_20_7_23_CAT.pdf
- Manufacturer Warranty:
- Eaton_00009_WARR.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13513_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Current Rating:
- 20 A (Outside Pole), 40 A (Inside Pole)
- Number of Poles:
- (2) 1-Pole Outside, (1) 2-Pole Inside
- Installation/Operator:
- SchneiderElectric-SquareD_00099_INST.pdf
- Country of Origin:
- United States
MSRP $120.00Surplus $77.14