Circuit Breakers
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.
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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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Lug Terminal Kits
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Auxiliary, Shunt, Trip Units and UVRs
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Circuit Breaker Accessories
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- Qty in Cart
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Square D QOB220EPD Miniature Circuit Breakers (MCBs)
MSRP $977.25Surplus $487.51SKU: C15-6654 Brand: Square D MPN: QOB220EPD UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6654
- Type:
- Miniature, Thermal Magnetic, Equipment Protector, Common Trip
- Current Rating:
- 20 A
- Interrupting Rating:
- 10 kA
- Series:
- QOB-EPD
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Pressure Plate Terminal, 30 mA Class B Ground Fault, Miniature Circuit Breaker
- Prop 65 Warning:
- Yes
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Mounting:
- Bolt-On
- Terminal Type:
- Pressure Plate
- Installation/Operator:
- SchneiderElectric-SquareD_00133_INST.pdf
- Number of Poles:
- 2
- Data Sheet:
- SchneiderElectric-SquareD_15152_1_2_DATA.pdf
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Used On:
- NQ Panelboard/Interior
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 4.12 Inch Height
MSRP $977.25Surplus $487.51 -
Square D QOB320VH Miniature Circuit Breakers (MCBs)
MSRP $646.89Surplus $249.85SKU: C15-6601 Brand: Square D MPN: QOB320VH UPC: 78590137196 Shipping Weight: 0.55 lbs. Shipping Height: 3.00 In. Shipping Length: 3.25 In. Shipping Width: 1.40 In...- SKU:
- C15-6601
- Current Rating:
- 20 A
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Series:
- QOB-VH
- Data Sheet:
- SchneiderElectric_21379_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Number of Poles:
- 3
- Used On:
- NQ Panelboard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Type:
- Miniature, Standard
- Country of Origin:
- United States
MSRP $646.89Surplus $249.85 -
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THHQB2120 Miniature Circuit Breakers (MCBs) THHQB 2P 20A 240V
MSRP $200.11Surplus $103.20THHQB2120 Miniature Circuit Breakers (MCBs) THHQB 2P 20A 240V​ ARCA SKU: C15-2966 Brand: MPN: THHQB2120 UPC: 783164118346 Shipping Weight: 0.65 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-2966
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Terminal Type:
- Bolt-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120/240 VAC, 20 A, 22 kA, 2-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, Bolt-On, Fixed Thermal Magnetic, Internal Common Trip
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_38_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00004_INST.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00490_1_CAD.pdf
- Current Rating:
- 20 A
- Number of Poles:
- 2
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00490_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC
MSRP $200.11Surplus $103.20 -
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THHQB22020 Miniature Circuit Breakers (MCBs) THHQ 2P 20A 120V 50/60Hz 1BOX
MSRP $375.72Surplus $72.98THHQB22020 Miniature Circuit Breakers (MCBs) THHQ 2P 20A 120V 50/60Hz 1BOX​ ARCA SKU: C15-2389 Brand: MPN: THHQB22020 UPC: 783164118438 Shipping Weight: 19.00 Shipping Height: 4.00 In...- SKU:
- C15-2389
- Type:
- Duplex
- Type:
- Feed-Through
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Terminal Type:
- Bolt-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120/240 VAC, 20 A, 22 kA, 2-Pole, Q-Line Frame, Bolt-On Terminal, Thermal Magnetic, Compact
- Specification/Technical:
- Eaton-WiringDevices-ArrowHart_03354_1_SPEC.pdf
- Data Sheet:
- Eaton-WiringDevices-ArrowHart_03531_1-6_DATA.pdf
- Installation/Operator:
- Eaton-WiringDevices_00005_INST.pdf
- Manufacturer Warranty:
- Eaton_00013_WARR.pdf
- Current Rating:
- 20 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
MSRP $375.72Surplus $72.98 -
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THQB1120GF Miniature Circuit Breakers (MCBs) 1P 20A 120VAC
MSRP $313.10Surplus $217.26THQB1120GF Miniature Circuit Breakers (MCBs) 1P 20A 120VAC​ ARCA SKU: C15-4218 Brand: MPN: THQB1120GF UPC: Shipping Weight: 0.55 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-4218
- Approval:
- UL
- Approval:
- CSA
- Amps:
- 20 A
- Interrupting Rating:
- 10 kA
- Mounting:
- Bolt-On
- Poles:
- 1
- Size:
- 1 Inch Width x 2-3/8 Inch Depth x 3-9/32 Inch Height
- Terminal Type:
- Load Lug
- Type:
- Molded Case
- Type:
- Fixed Thermal Magnetic
- Type:
- Non-Interchangeable Trip
- Used On:
- Load Center
- Used On:
- Lighting Panelboard
- Volts:
- 120/240 VAC
- Gauge:
- 14 to 8 AWG (Copper)
- Gauge:
- 12 to 8 AWG (Aluminum)
- Short Description:
- 120/240 VAC, 20 A, 1-Pole, 10 kA, 14 to 8 AWG Copper, 12 to 8 AWG Aluminum, Bolt-On Mount, Molded Case, Thermal Magnetic, Self-Test, Ground Fault Circuit Breaker
- Series:
- THQB
- Number of Poles:
- 1
- Current Rating:
- 20 A
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01912_6_36_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_04199_1_CAD.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00124_INST.pdf
- Wire Size:
- 14 to 8 AWG (Copper), 12 to 8 AWG (Aluminum)
MSRP $313.10Surplus $217.26 -
THQL1120AF2 Miniature Circuit Breakers (MCBs) THQL 1P 20A 120V 50/60Hz
MSRP $388.46Surplus $75.18THQL1120AF2 Miniature Circuit Breakers (MCBs) THQL 1P 20A 120V 50/60Hz​ ARCA SKU: C15-3578 Brand: MPN: THQL1120AF2 UPC: 783164652819 Shipping Weight: 0.45 Shipping Height: 4.00 In...- SKU:
- C15-3578
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 1
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Terminal Type:
- Plug-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120/240 VAC, 20 A, 10 kA, 1-Pole, 14 to 10 AWG Copper/Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Non-Interchangeable Trip, Compact, Fixed Thermal Magnetic, Arc Fault
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_31_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00500_1_CAD.pdf
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00500_1_CAD.pdf
- Number of Poles:
- 1
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 20 A
MSRP $388.46Surplus $75.18 -
THQL1120DF Miniature Circuit Breakers (MCBs) 1P 20A 120V
MSRP $82.73Surplus $126.74THQL1120DF Miniature Circuit Breakers (MCBs) 1P 20A 120V​ ARCA SKU: C15-3839 Brand: MPN: THQL1120DF UPC: 888614814721 Shipping Weight: 0.40 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-3839
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 1
- Interrupting Rating:
- 22 kA at 120 VAC
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120 VAC, 20 A, 10 kA, 1-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Non-Interchangeable Trip, Fixed Thermal Magnetic, Dual Function, Ground/Arc Fault
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_31_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- Number of Poles:
- 1
- Current Rating:
- 20 A
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Plug-On
- Series:
- THQL
- Country of Origin:
- United States
MSRP $82.73Surplus $126.74 -
THQL1120GFEP Miniature Circuit Breakers (MCBs) 1P 20A 120V 50/60Hz
MSRP $884.85Surplus $77.59THQL1120GFEP Miniature Circuit Breakers (MCBs) 1P 20A 120V 50/60Hz​ ARCA SKU: C15-3431 Brand: MPN: THQL1120GFEP UPC: 783164321067 Shipping Weight: 0.45 Shipping Height: 1.00 In. Shipping...- SKU:
- C15-3431
- Volts:
- 120/240 V
- Amps:
- 32 A
- Poles:
- 1
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 8 AWG Copper
- Wire Size:
- 12 to 8 AWG Aluminum
- Short Description:
- 120 VAC, 20 A, 10 kA, 1-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Common Trip, Fixed Thermal Magnetic, Equipment Protector, Ground Fault
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_32_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- Number of Poles:
- 1
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 20 A
- Mounting:
- Plug-On
MSRP $884.85Surplus $77.59 -
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THQL1120GFT Miniature Circuit Breakers (MCBs) 1P 20A 120V
MSRP $421.19Surplus $106.82THQL1120GFT Miniature Circuit Breakers (MCBs) 1P 20A 120V​ ARCA SKU: C15-3725 Brand: MPN: THQL1120GFT UPC: 783164485301 Shipping Weight: 0.45 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-3725
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 1
- Interrupting Rating:
- 10 kA at 120 VAC
- Terminal Type:
- Plug-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 Volt
- Short Description:
- 120/240 VAC, 20 A, 10 kA, 1-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Common Trip, Compact, Fixed Thermal Magnetic, Ground Fault, Self-Test
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_32_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- Current Rating:
- 20 A
- Number of Poles:
- 1
- Voltage Rating:
- 120/240 VAC
MSRP $421.19Surplus $106.82 -
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Westinghouse BAB2020 Miniature Circuit Breakers (MCBs) EA
MSRP $205.83Surplus $79.66Westinghouse BAB2020 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9426 Brand: Westinghouse MPN: BAB2020 UPC: Shipping Weight: 0.55 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-9426
- TS PIK:
- 21508679
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Type:
- Thermal Magnetic
- Size:
- 2 Inch Width x 2.906 Inch Depth x 2.906 Inch Height
- Short Description:
- 2" x 2.906" x 2.906", 120/240 VAC, 20 A at 40 Deg C, 10000 A Interrupt, 2-Pole, Bolt-On, Thermal Magnetic, Circuit Breaker
- Series:
- BAB
- Interrupting Rating:
- 10000 A
- Current Rating:
- 20 A
- Catalog:
- EatonCorp_00004_V4T1_12_CAT.pdf
- Terminal Type:
- Bolt-On
- Mounting:
- Bolt-On
- Country of Origin:
- Dominican Republic
MSRP $205.83Surplus $79.66 -
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Westinghouse HQP2020 Miniature Circuit Breakers (MCBs) 2P 20A 120V EA
MSRP $222.95Surplus $9.57Westinghouse HQP2020 Miniature Circuit Breakers (MCBs) 2P 20A 120V EA​ ARCA SKU: C15-5581 Brand: Westinghouse MPN: HQP2020 UPC: 78667934390 Shipping Weight: 0.55 lbs. Shipping...- SKU:
- C15-5581
- TS PIK:
- 21509588
- Terminal Type:
- Plug-On
- Catalog:
- Eaton_03771_V4T1_5_V4T1_6_CAT.pdf
- Short Description:
- 120/240 VAC, 20 A, 10 kA, 2-Pole, Female Clip Terminal, Plug-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 20 A
- Type:
- Thermal Magnetic
- Number of Poles:
- 2
- Series:
- HQP
- Wire Size:
- 14 to 4 AWG Aluminum/Copper (Load)
- Interrupting Rating:
- 10000 A at 120/240 VAC, 5000 A at 24 to 48/62.5/80 VDC
- Mounting:
- Plug-On
- Country of Origin:
- Dominican Republic
- Main Category:
- Miniature Circuit Breakers (MCBs)
MSRP $222.95Surplus $9.57
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