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 QO125 Miniature Circuit Breakers (MCBs)
MSRP $29.10Surplus $11.04Square D QO125 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6580 Brand: Square D MPN: QO125 UPC: 78590101041 Shipping Weight: 0.25 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6580
- TS PIK:
- 109595034
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Number of Poles:
- 1
- Current Rating:
- 25 A
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Type:
- Common Trip, Miniature, Standard
- Series:
- QO
- Installation/Operator:
- SchneiderElectric-SquareD_01207_INST.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 5/10 kA Interrupt, 1-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Data Sheet:
- SchneiderElectric-SquareD_53378_1_2_DATA.pdf
- Terminal Type:
- Pressure Plate
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
- Interrupting Rating:
- 5/10 kA
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $29.10Surplus $11.04 -
Square D QO225 Miniature Circuit Breakers (MCBs) QO 2P 25A 120V 50/60Hz 1Ph
MSRP $350.00Surplus $23.68Square D QO225 Miniature Circuit Breakers (MCBs) QO 2P 25A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2572 Brand: Square D MPN: QO225 UPC: 785901012412 Shipping Weight: 0.55 Shipping Height: 4.00 In...- SKU:
- C15-2572
- Series:
- QO
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 5/10 kA
- Terminal Type:
- Pressure Plate
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 5/10 kA Interrupt, 2-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53530_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Number of Poles:
- 2
- Current Rating:
- 25 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Country of Origin:
- Ireland
MSRP $350.00Surplus $23.68 -
Square D QO325 Everything Else
MSRP $230.00Surplus $141.69SKU: C15-8652 Brand: Square D MPN: QO325 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-8652
- TS PIK:
- 120851680
- Approval:
- UL, CSA
- Mounting:
- Plug-On
- Series:
- QO
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Interrupting Rating:
- 5/10 kA
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
- Type:
- Common Trip, Miniature, Standard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 5/10 kA Interrupt, 3-Pole, 14 to 8 AWG Copper/Aluminum, Plug-On Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Number of Poles:
- 3
- Terminal Type:
- Pressure Plate
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Current Rating:
- 25 A
- Data Sheet:
- SchneiderElectric-SquareD_53576_1_2_DATA.pdf
- Country of Origin:
- Mexico
MSRP $230.00Surplus $141.69 -
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Square D QOB125VH Molded Case Breakers (MCCBs)
MSRP $147.00Surplus $39.69SKU: C15-17832 Brand: Square D MPN: QOB125VH UPC: 78590137189 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17832
- Current Rating:
- 25 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 22 kA, 1-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Number of Poles:
- 1
- Series:
- QOB-VH
- Approval:
- UL, CSA
- Used On:
- NQ Panelboard
- Type:
- Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Data Sheet:
- SchneiderElectric_21261_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Installation:
- Bolt-On
MSRP $147.00Surplus $39.69 -
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Square D QOB225 Miniature Circuit Breakers (MCBs) 2P 25A 120V
MSRP $91.54Surplus $37.80Square D QOB225 Miniature Circuit Breakers (MCBs) 2P 25A 120V​ ARCA SKU: C15-2177 Brand: Square D MPN: QOB225 UPC: 78590136828 Shipping Weight: 0.55 lbs. Shipping Height: 2.00 In...- SKU:
- C15-2177
- Series:
- QOB
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- NQ Panelboard
- Poles:
- 2
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Interrupting Rating:
- 5 Kiloamp at 48 Volt DC
- Installation:
- Bolt-On
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21305_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 111088203
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Number of Poles:
- 2
- Current Rating:
- 25 A
MSRP $91.54Surplus $37.80 -
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Square D QOB2251021 Molded Case Breakers (MCCBs)
MSRP $212.12Surplus $57.28SKU: C15-18869 Brand: Square D MPN: QOB2251021 UPC: 78590172971 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18869
- Series:
- QOB
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Pressure Plate, Miniature, Standard, Panelboard Circuit Breaker with 120/208/240 VAC Shunt Trip Package
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Type:
- Miniature, Standard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_11083_1_2_DATA.pdf
- Approval:
- UL, CSA
- Installation:
- Bolt-On
- Installation/Operator:
- SchneiderElectric_00595_INST.pdf
- Catalog:
- SchneiderElectric-Telemecanique_00033_1_15_9_20_CAT.pdf
- Current Rating:
- 25 A
- Number of Poles:
- 2
- Used On:
- NQ Panelboard
MSRP $212.12Surplus $57.28 -
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Square D QOB3251021 Molded Case Breakers (MCCBs)
MSRP $487.00Surplus $131.49SKU: C15-18877 Brand: Square D MPN: QOB3251021 UPC: 78590185314 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18877
- Used On:
- NQ Panelboard
- Installation/Operator:
- SchneiderElectric_00595_INST.pdf
- Type:
- Miniature, Standard
- Catalog:
- SchneiderElectric-Telemecanique_00033_1_15_9_20_CAT.pdf
- Approval:
- UL, CSA
- Data Sheet:
- SchneiderElectric_11137_1_2_DATA.pdf
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 10 kA, 3-Pole, Q-Frame, Bolt-On Mount, Pressure Plate, Miniature, Standard, Panelboard Circuit Breaker with 120/208/240 VAC Shunt Trip Package
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Series:
- QOB
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Current Rating:
- 25 A
- Installation:
- Bolt-On
MSRP $487.00Surplus $131.49 -
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Square D QOB325VH Molded Case Breakers (MCCBs)
MSRP $808.00Surplus $173.75SKU: U00-8590 Brand: Square D MPN: QOB325VH UPC: 78590137197 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8590
- Data Sheet:
- SchneiderElectric_21382_1_2_DATA.pdf
- Installation:
- Bolt-On
- Used On:
- NQ Panelboard
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Type:
- Miniature, Standard
- Current Rating:
- 25 A
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Number of Poles:
- 3
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Series:
- QOB-VH
MSRP $808.00Surplus $173.75 -
Square D QOU125 Miniature Circuit Breakers (MCBs)
MSRP $40.20Surplus $21.56Square 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
- Approval:
- UL, CSA
MSRP $40.20Surplus $21.56 -
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Square D QOU225 Miniature Circuit Breakers (MCBs)
MSRP $92.46Surplus $42.06SKU: C15-6672 Brand: Square D MPN: QOU225 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6672
- TS PIK:
- 21356029
- Series:
- QOU
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 10 kA Interrupt, 2-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Number of Poles:
- 2
- Current Rating:
- 25 A
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Data Sheet:
- SchneiderElectric_21560_1_2_DATA.pdf
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Interrupting Rating:
- 10 kA
- Used On:
- OEM
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Approval:
- UL, CSA
MSRP $92.46Surplus $42.06 -
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Square D QOU325 Molded Case Breakers (MCCBs)
MSRP $213.52Surplus $57.65SKU: C15-18883 Brand: Square D MPN: QOU325 UPC: 78590148917 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18883
- Current Rating:
- 25 A
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 25 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21659_1_2_DATA.pdf
- Used On:
- OEM
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Approval:
- UL, CSA
- Series:
- QOU
- Type:
- Miniature, Standard
MSRP $213.52Surplus $57.65
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