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 QOU120 Miniature Circuit Breakers (MCBs)
MSRP $40.20Surplus $24.21Square D QOU120 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6482 Brand: Square D MPN: QOU120 UPC: 78590141853 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-6482
- TS PIK:
- 21032857
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Type:
- Miniature, Standard
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_21465_1_2_DATA.pdf
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Interrupting Rating:
- 10 kA
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 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
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Current Rating:
- 20 A
- Used On:
- OEM
- Terminal Type:
- Slotted Box Lug Line/Load
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Series:
- QOU
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Country of Origin:
- United States
- Approval:
- UL, CSA
MSRP $40.20Surplus $24.21 -
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Square D QOU1201021 Molded Case Breakers (MCCBs)
MSRP $396.00Surplus $106.92SKU: C15-17943 Brand: Square D MPN: QOU1201021 UPC: 78590151010 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17943
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Standard, Shunt Trip, Miniature Circuit Breaker
- Current Rating:
- 20 A
- Number of Poles:
- 1
- Series:
- QOU
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Interrupting Rating:
- 10 kA
- Type:
- Miniature, Standard, Shunt Trip
- Terminal Type:
- Slotted Box Lug Line/Load
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Approval:
- UL, CSA
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21466_1_2_DATA.pdf
- Used On:
- OEM
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
MSRP $396.00Surplus $106.92 -
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Square D QOU120VH Molded Case Breakers (MCCBs)
MSRP $190.00Surplus $51.30SKU: C15-17945 Brand: Square D MPN: QOU120VH UPC: 78590155952 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17945
- Current Rating:
- 20 A
- Series:
- QOU
- Short Description:
- 120/240 VAC, 20 A, 22 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load, Standard, Miniature Circuit Breaker
- Data Sheet:
- SchneiderElectric_21476_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30267_1_CAD.pdf
- Used On:
- OEM
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Approval:
- UL, CSA
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Type:
- Miniature, Standard
- Number of Poles:
- 1
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Slotted Box Lug Line/Load
MSRP $190.00Surplus $51.30 -
Contact Us For Quote
Square D QOU220 Miniature Circuit Breakers (MCBs)
MSRP $74.89Surplus $40.15SKU: C15-6401 Brand: Square D MPN: QOU220 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6401
- TS PIK:
- 125439274
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Terminal Type:
- Slotted Box Lug Line/Load
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Data Sheet:
- SchneiderElectric_21549_1_2_DATA.pdf
- Used On:
- OEM
- Current Rating:
- 20 A
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Series:
- QOU
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 2-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $74.89Surplus $40.15 -
Contact Us For Quote
Square D QOU2201021 Molded Case Breakers (MCCBs)
MSRP $279.00Surplus $75.33SKU: C15-17954 Brand: Square D MPN: QOU2201021 UPC: 78590151791 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17954
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 2-Pole, 14 to 2 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Shunt Trip, Standard, Miniature Circuit Breaker
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Series:
- QOU
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard, Shunt Trip
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_21550_1_2_DATA.pdf
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Used On:
- OEM
- Current Rating:
- 20 A
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Approval:
- UL, CSA
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
MSRP $279.00Surplus $75.33 -
Contact Us For Quote
Square D QOU220VH Molded Case Breakers (MCCBs)
MSRP $198.00Surplus $53.46SKU: C15-17955 Brand: Square D MPN: QOU220VH UPC: 78590157983 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17955
- Interrupting Rating:
- 22 kA
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Terminal Type:
- Slotted Box Lug Line/Load
- Used On:
- OEM
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Current Rating:
- 20 A
- Data Sheet:
- SchneiderElectric_21559_1_2_DATA.pdf
- Type:
- Miniature, Standard
- Number of Poles:
- 2
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Short Description:
- 120/240 VAC, 20 A, 22 kA Interrupt, 2-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load, Standard, Miniature Circuit Breaker
- Approval:
- UL, CSA
- Series:
- QOU
MSRP $198.00Surplus $53.46 -
Square D QOU320 Miniature Circuit Breakers (MCBs)
MSRP $308.00Surplus $143.76SKU: C15-10933 Brand: Square D MPN: QOU320 UPC: 78590141889 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10933
- TS PIK:
- 111088453
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Series:
- QOU
- Interrupting Rating:
- 10 kA
- Current Rating:
- 20 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Terminal Type:
- Slotted Box Lug Line/Load
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Used On:
- OEM
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21650_1_2_DATA.pdf
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Type:
- Miniature, Standard
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $308.00Surplus $143.76 -
Contact Us For Quote
Square D QOU3201021 Molded Case Breakers (MCCBs)
MSRP $365.00Surplus $98.55SKU: C15-17969 Brand: Square D MPN: QOU3201021 UPC: 78590151856 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17969
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Shunt Trip, Standard, Miniature Circuit Breaker
- Data Sheet:
- SchneiderElectric_21651_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Number of Poles:
- 3
- Type:
- Miniature, Standard, Shunt Trip
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Series:
- QOU
- Terminal Type:
- Slotted Box Lug Line/Load
- Current Rating:
- 20 A
- Interrupting Rating:
- 10 kA
- Approval:
- UL, CSA
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Used On:
- OEM
- Size:
- 3 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
MSRP $365.00Surplus $98.55 -
Contact Us For Quote
Square D QOU320VH Molded Case Breakers (MCCBs)
MSRP $760.00Surplus $205.20SKU: C15-17971 Brand: Square D MPN: QOU320VH UPC: 78590156001 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17971
- Short Description:
- 120/240 VAC, 20 A, 22 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load, Standard, Miniature Circuit Breaker
- Series:
- QOU
- Type:
- Miniature, Standard
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Used On:
- OEM
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Current Rating:
- 20 A
- Interrupting Rating:
- 22 kA
- CAD Drawings:
- SchneiderElectric_30267_1_CAD.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Approval:
- UL, CSA
- Number of Poles:
- 3
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Data Sheet:
- SchneiderElectric_21658_1_2_DATA.pdf
MSRP $760.00Surplus $205.20
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