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
- Product
- Qty in Cart
- Price
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Square D QOU115 Miniature Circuit Breakers (MCBs)
MSRP $54.72Surplus $24.91Square D QOU115 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-4929 Brand: Square D MPN: QOU115 UPC: 78590141850 Shipping Weight: 0.40 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-4929
- Series:
- QOU
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- OEM
- Poles:
- 1
- Mounting:
- DIN Rail
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Slotted Box Lug Line/Load
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 15 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21454_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- CAD Drawing:
- SchneiderElectric_30265_1_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 113285771
- Voltage Rating:
- 120/240 VAC
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Number of Poles:
- 1
- Current Rating:
- 15 A
- Country of Origin:
- Mexico
MSRP $54.72Surplus $24.91 -
Square D QOU230VH Miniature Circuit Breakers (MCBs) EA
MSRP $317.18Surplus $60.28Square D QOU230VH Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-5292 Brand: Square D MPN: QOU230VH UPC: 78590155989 Shipping Weight: 0.80 lbs. Shipping Height: 2.00 In...- SKU:
- C15-5292
- Approval:
- UL
- Approval:
- CSA
- Amps:
- 30 A
- Interrupting Rating:
- 22 kA
- Mounting:
- DIN Rail
- Poles:
- 2
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature
- Type:
- Standard
- Used On:
- OEM
- Volts:
- 120/240 VAC 50/60 Hertz
- Gauge:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 30 A, 22 kA Interrupt, 2-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load, Standard, Miniature Circuit Breaker
- Series:
- QOU
- Data Sheet:
- SchneiderElectric_21578_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- CAD Drawing:
- SchneiderElectric_30267_1_CAD.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30267_1_CAD.pdf
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 30 A
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Country of Origin:
- United States
MSRP $317.18Surplus $60.28 -
Square D QOU130 Miniature Circuit Breakers (MCBs)
MSRP $68.07Surplus $25.16Square D QOU130 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-3335 Brand: Square D MPN: QOU130 UPC: 78590141856 Shipping Weight: 0.40 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-3335
- Series:
- QOU
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- OEM
- Poles:
- 1
- Mounting:
- DIN Rail
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Slotted Box Lug Line/Load
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 30 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21480_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- CAD Drawing:
- SchneiderElectric_30265_1_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 111088442
- Current Rating:
- 30 A
- Number of Poles:
- 1
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $68.07Surplus $25.16 -
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Square D M9F21250 Miniature Circuit Breakers (MCBs) M 2P 50A 120V 50/60Hz 1Ph EA
MSRP $326.71Surplus $63.82Square D M9F21250 Miniature Circuit Breakers (MCBs) M 2P 50A 120V 50/60Hz 1Ph EA​ ARCA SKU: C15-4893 Brand: Square D MPN: M9F21250 UPC: 606481167692 Shipping Weight: 0.55 lbs. Shipping...- SKU:
- C15-4893
- Type:
- Thermal Magnetic
- Type:
- Miniature
- Approval:
- UL 1077
- Approval:
- CSA C22.2
- Size:
- 1.42 Inch Width x 2.83 Inch Depth x 3.19 Inch Height
- Volts:
- 240/415/440 VAC 50/60 Hertz
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- DIN Rail
- Interrupting Rating:
- 5 kA at 480 Star/277 VAC
- Terminal Type:
- Tunnel (Top or Bottom)
- Wire Size:
- 0.55
- Short Description:
- 240/415/440 VAC 50/60 Hz, 50 A, 5 kA Interrupt, 2-Pole, B Curve, Gray, Toggle Control, Clip-On Mount, Tunnel Terminal, Thermal Magnetic
- Catalog:
- SchneiderElectric-SquareD_60281_16_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_60767_1-3_DATA.pdf
- CAD Drawing:
- SchneiderElectric_30029_1-7_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Current Rating:
- 50 A
- Voltage Rating:
- 240/415/440 VAC 50/60 Hertz
- CAD Drawings:
- SchneiderElectric_30029_1-7_CAD.pdf
- Number of Poles:
- 2
MSRP $326.71Surplus $63.82 -
Contact Us For Quote
Square D MG24509 Miniature Circuit Breakers (MCBs) M 1P 20A 120V 50/60Hz 1Ph EA
MSRP $170.16Surplus $19.67Square D MG24509 Miniature Circuit Breakers (MCBs) M 1P 20A 120V 50/60Hz 1Ph EA​ ARCA SKU: C15-4886 Brand: Square D MPN: MG24509 UPC: 78590188105 Shipping Weight: 0.25 lbs. Shipping...- SKU:
- C15-4886
- Approval:
- UL 1077
- Approval:
- CSA C22.2
- Amps:
- 20 A
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Interrupting Rating:
- 5 Kiloampere at 277 VAC (UL/CSA)
- Interrupting Rating:
- 10 Kiloampere at 240 VAC (IEC)
- Interrupting Rating:
- 10 Kiloampere at 48/65 VDC
- Mounting:
- DIN Rail
- Poles:
- 1
- Size:
- 0.71 Inch W x 2.76 Inch D x 3.19 Inch H
- Terminal Trip Setting:
- 10 to 14 x Rated Current
- Type:
- Current Limiting
- Type:
- Thermal Magnetic
- Volts:
- 120/240/277 VAC at 50/60 Hz (UL/CSA)
- Volts:
- 240 VAC at 50/60 Hz (IEC)
- Volts:
- 48/65 VDC
- Gauge:
- 14 to 4 AWG (Copper)
- Short Description:
- 240/277/415 VAC 50/60 Hz, 60 VDC, 20 A, 3/5/10 kA, 1-Pole, Gray, Thermal Magnetic, Supplementary Protector
- Voltage Rating:
- 120/240/277 VAC at 50/60 Hz (UL/CSA), 240 VAC at 50/60 Hz (IEC), 48/65 VDC
- Current Rating:
- 20 A
- Catalog:
- SchneiderElectric-SquareD_00103_23_CAT.pdf
- Number of Poles:
- 1
- Data Sheet:
- SchneiderElectric_01039_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric_00172_INST.pdf
- Wire Size:
- 14 to 4 AWG (Copper)
MSRP $170.16Surplus $19.67 -
Square D QOU125 Miniature Circuit Breakers (MCBs)
MSRP $54.72Surplus $29.35Square D QOU125 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6483 Brand: Square D MPN: QOU125 UPC: 78590148908 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-6483
- TS PIK:
- 21032803
- Series:
- QOU
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Mounting:
- DIN Rail
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Number of Poles:
- 1
- Used On:
- OEM
- Data Sheet:
- SchneiderElectric_21477_1_2_DATA.pdf
- Current Rating:
- 25 A
- Terminal Type:
- Slotted Box Lug Line/Load
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Type:
- Miniature, Standard
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Country of Origin:
- Mexico
MSRP $54.72Surplus $29.35 -
Contact Us For Quote
Square D QOU140 Miniature Circuit Breakers (MCBs) QOU 1P 40A 240V 50/60Hz 1Ph
MSRP $68.07Surplus $32.96Square D QOU140 Miniature Circuit Breakers (MCBs) QOU 1P 40A 240V 50/60Hz 1Ph​ ARCA SKU: C15-3658 Brand: Square D MPN: QOU140 UPC: 785901418597 Shipping Weight: 0.40 Shipping Height: 1.00...- SKU:
- C15-3658
- Series:
- QOU
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- OEM
- Poles:
- 1
- Mounting:
- DIN Rail
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Slotted Box Lug Line/Load
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21490_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- CAD Drawing:
- SchneiderElectric_30265_1_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Number of Poles:
- 1
- Current Rating:
- 40 A
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $68.07Surplus $32.96 -
Square D QOU150 Miniature Circuit Breakers (MCBs)
MSRP $54.72Surplus $32.96Square D QOU150 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6564 Brand: Square D MPN: QOU150 UPC: 78590141862 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-6564
- TS PIK:
- 109594956
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 1
- Voltage Rating:
- 120/240 VAC
- Series:
- QOU
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Current Rating:
- 50 A
- Mounting:
- DIN Rail
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Used On:
- OEM
- Data Sheet:
- SchneiderElectric_21503_1_2_DATA.pdf
- Country of Origin:
- Mexico
MSRP $54.72Surplus $32.96 -
Square D QOU160 Miniature Circuit Breakers (MCBs)
MSRP $54.72Surplus $22.92Square D QOU160 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6486 Brand: Square D MPN: QOU160 UPC: 78590148934 Shipping Weight: 0.40 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-6486
- TS PIK:
- 21032805
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Mounting:
- DIN Rail
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Data Sheet:
- SchneiderElectric_21508_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Series:
- QOU
- Number of Poles:
- 1
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Interrupting Rating:
- 10 kA
- Current Rating:
- 60 A
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 60 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Used On:
- OEM
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard
- Country of Origin:
- United States
MSRP $54.72Surplus $22.92 -
Contact Us For Quote
Square D QOU230 Miniature Circuit Breakers (MCBs)
MSRP $125.87Surplus $69.71Square D QOU230 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6402 Brand: Square D MPN: QOU230 UPC: 78590141871 Shipping Weight: 0.75 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-6402
- TS PIK:
- 124025006
- Interrupting Rating:
- 10 kA
- Series:
- QOU
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 30 A, 10 kA Interrupt, 2-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Current Rating:
- 30 A
- Number of Poles:
- 2
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC
- Type:
- Miniature, Standard
- Mounting:
- DIN Rail
- Used On:
- OEM
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Data Sheet:
- SchneiderElectric_21568_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Country of Origin:
- Mexico
MSRP $125.87Surplus $69.71 -
Contact Us For Quote
Square D QOU330 Miniature Circuit Breakers (MCBs) QOU 3P 30A 240V 50/60Hz 3Ph EA
MSRP $462.84Surplus $208.21SKU: C15-4930 Brand: Square D MPN: QOU330 UPC: 78590141892 Shipping Weight: 1.15 lbs. Shipping Height: 4.00 In. Shipping Length: 5.00 In. Shipping Width: 3.00 In...- SKU:
- C15-4930
- Series:
- QOU
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- OEM
- Poles:
- 3
- Mounting:
- DIN Rail
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Slotted Box Lug Line/Load
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 30 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21666_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- CAD Drawing:
- SchneiderElectric_30265_1_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Current Rating:
- 30 A
- Number of Poles:
- 3
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
MSRP $462.84Surplus $208.21
Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.
