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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Contact Us For Quote
Square D QOU1100 Molded Case Breakers (MCCBs)
MSRP $117.87Surplus $31.82SKU: C15-17938 Brand: Square D MPN: QOU1100 UPC: 78590147854 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17938
- Type:
- Common Trip, Miniature, Standard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 1
- Current Rating:
- 100 A
- Data Sheet:
- SchneiderElectric_21447_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Series:
- QOU
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Used On:
- OEM
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 100 A, 10 kA Interrupt, 1-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Approval:
- UL, CSA
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Slotted Box Lug Line/Load
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
MSRP $117.87Surplus $31.82 -
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Square D QOU180 Molded Case Breakers (MCCBs)
MSRP $282.00Surplus $76.14SKU: C15-17948 Brand: Square D MPN: QOU180 UPC: 78590117590 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17948
- Type:
- Common Trip, Miniature, Standard
- Number of Poles:
- 1
- Series:
- QOU
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 80 A, 10 kA Interrupt, 1-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Current Rating:
- 80 A
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Approval:
- UL, CSA
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Interrupting Rating:
- 10 kA
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Slotted Box Lug Line/Load
- Data Sheet:
- SchneiderElectric_21516_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Used On:
- OEM
MSRP $282.00Surplus $76.14 -
Square D QOU2100 Miniature Circuit Breakers (MCBs)
MSRP $174.00Surplus $115.71SKU: C15-10925 Brand: Square D MPN: QOU2100 UPC: 78590106028 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10925
- TS PIK:
- 111081743
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 100 A, 10 kA Interrupt, 2-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Current Rating:
- 100 A
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Approval:
- UL, CSA
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Series:
- QOU
- Interrupting Rating:
- 10 kA
- Type:
- Common Trip, Miniature, Standard
- Number of Poles:
- 2
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Used On:
- OEM
- Data Sheet:
- SchneiderElectric_21525_1_2_DATA.pdf
- Country of Origin:
- Mexico
MSRP $174.00Surplus $115.71 -
Contact Us For Quote
Square D QOU21001021 Molded Case Breakers (MCCBs)
MSRP $401.00Surplus $108.27SKU: C15-17953 Brand: Square D MPN: QOU21001021 UPC: 78590127218 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-17953
- Series:
- QOU
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 100 A, 10 kA Interrupt, 2-Pole, 12 to 2/0 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Shunt Trip, Standard, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Current Rating:
- 100 A
- Terminal Type:
- Slotted Box Lug Line/Load
- Interrupting Rating:
- 10 kA
- Type:
- Common Trip, Miniature, Standard, Shunt Trip
- Approval:
- UL, CSA
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21526_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Used On:
- OEM
- Mounting:
- DIN Rail/Unit/Surface/Flush
MSRP $401.00Surplus $108.27 -
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Square D QOU2125 Molded Case Breakers (MCCBs)
MSRP $266.70Surplus $72.01SKU: C15-18880 Brand: Square D MPN: QOU2125 UPC: 78590106076 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18880
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 125 A, 10 kA Interrupt, 2-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Series:
- QOU
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Type:
- Common Trip, Miniature, Standard
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Data Sheet:
- SchneiderElectric_21535_1_2_DATA.pdf
- Used On:
- OEM
- Approval:
- UL, CSA
- Terminal Type:
- Slotted Box Lug Line/Load
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Current Rating:
- 125 A
MSRP $266.70Surplus $72.01 -
Square D QOU280 Miniature Circuit Breakers (MCBs)
MSRP $174.00Surplus $115.71SKU: C15-10930 Brand: Square D MPN: QOU280 UPC: 78590106026 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10930
- TS PIK:
- 111081741
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Series:
- QOU
- Current Rating:
- 80 A
- Number of Poles:
- 2
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Used On:
- OEM
- Data Sheet:
- SchneiderElectric_21620_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 80 A, 10 kA Interrupt, 2-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Type:
- Common Trip, Miniature, Standard
- Approval:
- UL, CSA
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Slotted Box Lug Line/Load
- Country of Origin:
- Mexico
MSRP $174.00Surplus $115.71 -
Contact Us For Quote
Square D QOU290 Miniature Circuit Breakers (MCBs)
MSRP $174.00Surplus $115.71SKU: C15-10931 Brand: Square D MPN: QOU290 UPC: 78590106027 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10931
- TS PIK:
- 111081742
- Number of Poles:
- 2
- Series:
- QOU
- Used On:
- OEM
- Terminal Type:
- Slotted Box Lug Line/Load
- Current Rating:
- 90 A
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Approval:
- UL, CSA
- Data Sheet:
- SchneiderElectric_21624_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Interrupting Rating:
- 10 kA
- Type:
- Common Trip, Miniature, Standard
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 90 A, 10 kA Interrupt, 2-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
MSRP $174.00Surplus $115.71 -
Square D QOU3100 Miniature Circuit Breakers (MCBs)
MSRP $416.00Surplus $196.97SKU: C15-10932 Brand: Square D MPN: QOU3100 UPC: 78590106033 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10932
- TS PIK:
- 111081748
- Series:
- QOU
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 100 A, 10 kA Interrupt, 3-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Interrupting Rating:
- 10 kA
- Current Rating:
- 100 A
- Number of Poles:
- 3
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Terminal Type:
- Slotted Box Lug Line/Load
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Type:
- Common Trip, Miniature, Standard
- Data Sheet:
- SchneiderElectric_21632_1_2_DATA.pdf
- Used On:
- OEM
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $416.00Surplus $196.97 -
Contact Us For Quote
Square D QOU31001021 Molded Case Breakers (MCCBs)
MSRP $572.00Surplus $154.44SKU: C15-17965 Brand: Square D MPN: QOU31001021 UPC: 78590109034 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-17965
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Interrupting Rating:
- 10 kA
- Series:
- QOU
- Current Rating:
- 100 A
- Number of Poles:
- 3
- Type:
- Common Trip, Miniature, Standard, Shunt Trip
- Used On:
- OEM
- Size:
- 3 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Data Sheet:
- SchneiderElectric_21633_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Approval:
- UL, CSA
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Slotted Box Lug Line/Load
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 100 A, 10 kA Interrupt, 3-Pole, 12 to 2/0 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Shunt Trip, Standard, Miniature Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
MSRP $572.00Surplus $154.44 -
Square D QOU370 Miniature Circuit Breakers (MCBs)
MSRP $393.00Surplus $174.10SKU: C15-10937 Brand: Square D MPN: QOU370 UPC: 78590106030 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10937
- TS PIK:
- 111081745
- Current Rating:
- 70 A
- Number of Poles:
- 3
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard
- Series:
- QOU
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Used On:
- OEM
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21701_1_2_DATA.pdf
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 70 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $393.00Surplus $174.10 -
Square D QOU380 Miniature Circuit Breakers (MCBs)
MSRP $450.00Surplus $204.45SKU: C15-10938 Brand: Square D MPN: QOU380 UPC: 78590106031 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10938
- TS PIK:
- 111081746
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 80 A, 10 kA Interrupt, 3-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Type:
- Common Trip, Miniature, Standard
- Terminal Type:
- Slotted Box Lug Line/Load
- Series:
- QOU
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Current Rating:
- 80 A
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Interrupting Rating:
- 10 kA
- Used On:
- OEM
- Data Sheet:
- SchneiderElectric_21707_1_2_DATA.pdf
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Number of Poles:
- 3
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $450.00Surplus $204.45 -
Contact Us For Quote
Square D QOU390 Molded Case Breakers (MCCBs)
MSRP $286.00Surplus $77.22SKU: C15-18884 Brand: Square D MPN: QOU390 UPC: 78590106032 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18884
- Used On:
- OEM
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Current Rating:
- 90 A
- Type:
- Common Trip, Miniature, Standard
- Terminal Type:
- Slotted Box Lug Line/Load
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Approval:
- UL, CSA
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Series:
- QOU
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Data Sheet:
- SchneiderElectric_21711_1_2_DATA.pdf
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 90 A, 10 kA Interrupt, 3-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
MSRP $286.00Surplus $77.22
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.
