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 QOB240GFI Molded Case Breakers (MCCBs)
MSRP $888.93Surplus $240.01SKU: C15-18870 Brand: Square D MPN: QOB240GFI UPC: 78590136295 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18870
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Prop 65 Warning:
- Yes
- Used On:
- NQOD Panelboard/Interior
- Series:
- QOB-GFI
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Type:
- Thermal Magnetic, Common Trip, Equipment Protector
- Terminal Type:
- Box Lug
- Data Sheet:
- SchneiderElectric-SquareD_15171_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Size:
- 1.5 Inch W x 2.91 Inch D x 4.12 Inch H
- Mounting:
- Bolt-On
- Short Description:
- 120/240 VAC 50/60 Hz, 40 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Approval:
- UL, CSA
- Installation/Operator:
- SchneiderElectric-SquareD_00198_INST.pdf
MSRP $888.93Surplus $240.01 -
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Square D QOB250GFI Miniature Circuit Breakers (MCBs)
MSRP $809.97Surplus $182.85SKU: C15-10914 Brand: Square D MPN: QOB250GFI UPC: 78590136297 Shipping Weight: 1.05 lbs. Shipping Height: 6.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-10914
- TS PIK:
- 115542999
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Number of Poles:
- 2
- Series:
- QOB-GFI
- Type:
- Thermal Magnetic, Common Trip, Equipment Protector
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Prop 65 Warning:
- Yes
- Interrupting Rating:
- 10 kA
- Current Rating:
- 50 A
- Mounting:
- Bolt-On
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Used On:
- NQOD Panelboard/Interior
- Installation/Operator:
- SchneiderElectric-SquareD_00198_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_15177_1_2_DATA.pdf
- Size:
- 1.5 Inch W x 2.91 Inch D x 4.12 Inch H
- Trip Sensitivity:
- 6 MilliA
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Approval:
- UL, CSA
MSRP $809.97Surplus $182.85 -
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Square D QOB250HID Molded Case Breakers (MCCBs)
MSRP $122.52Surplus $33.08SKU: C15-17877 Brand: Square D MPN: QOB250HID UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-17877
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, High Intensity Discharge, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Application:
- Fluorescent/HID Lighting
- Current Rating:
- 50 A
- Data Sheet:
- SchneiderElectric-SquareD_15178_1_2_DATA.pdf
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Poles:
- 2
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Installation/Operator:
- SchneiderElectric-SquareD_00832_INST.pdf
- Catalog:
- SchneiderElectric_00260_9_15_CAT.pdf
- Series:
- QOB-HID
- Approval:
- UL, CSA
- Mounting:
- Bolt-On
- Type:
- Thermal Magnetic
- Used On:
- NQ and NQOD Panelboard/Interior
MSRP $122.52Surplus $33.08 -
Square D QOB260GFI Miniature Circuit Breakers (MCBs)
MSRP $604.42Surplus $295.66SKU: C15-10915 Brand: Square D MPN: QOB260GFI UPC: 78590136300 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10915
- TS PIK:
- 115773618
- Catalog:
- SchneiderElectric-SquareD_00101_11_CAT.pdf
- Terminal Type:
- Box Lug
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Short Description:
- 120/240 VAC, 60 A, 2-Pole, 10 kA, Bolt-On Mount, Box Lug Terminal, Thermal Magnetic, Common Trip, Equipment Protector, Miniature Circuit Breaker
- Series:
- QOB-GFI
- Data Sheet:
- SchneiderElectric-SquareD_05134_1_2_DATA.pdf
- Interrupting Rating:
- 10 kA
- Mounting:
- Bolt-On
- Size:
- 1.5 Inch W x 2.91 Inch D x 4.12 Inch H
- Number of Poles:
- 2
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Current Rating:
- 60 A
- CAD Drawings:
- SchneiderElectric-SquareD_05483_1_CAD.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00198_INST.pdf
- Used On:
- NQOD Panelboard/Interior
- Type:
- Thermal Magnetic, Common Trip, Equipment Protector
- Approval:
- UL, CSA
- Trip Sensitivity:
- 6 MilliA
- Country of Origin:
- Mexico
MSRP $604.42Surplus $295.66 -
Square D QOB270 Miniature Circuit Breakers (MCBs) 2P 70A 120V
MSRP $246.99Surplus $95.96Square D QOB270 Miniature Circuit Breakers (MCBs) 2P 70A 120V​ ARCA SKU: C15-6395 Brand: Square D MPN: QOB270 UPC: 78590141704 Shipping Weight: 0.60 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6395
- TS PIK:
- 124024938
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 70 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Type:
- Miniature, Standard
- Current Rating:
- 70 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Series:
- QOB
- Used On:
- NQ Panelboard
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21348_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Number of Poles:
- 2
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
- Installation:
- Bolt-On
MSRP $246.99Surplus $95.96 -
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Square D QOB315SWN Molded Case Breakers (MCCBs)
MSRP $307.65Surplus $83.07SKU: C15-17887 Brand: Square D MPN: QOB315SWN UPC: 78590134188 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17887
- Used On:
- NQ and NQOD Panelboard/Interior
- Data Sheet:
- SchneiderElectric-SquareD_15206_1_2_DATA.pdf
- Type:
- Thermal Magnetic
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Pressure Plate
- Mounting:
- Bolt-On
- Catalog:
- SchneiderElectric_00260_9_15_CAT.pdf
- Current Rating:
- 15 A
- Series:
- QO-SWN
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Poles:
- 3
- Approval:
- UL, CSA
- Short Description:
- 120/240 VAC 50/60 Hz, 15 A, 10 kA Interrupt, 3-Pole, Bolt-On Mount, 3-Panel Space, Pressure Plate Terminal, Switch Neutral, Miniature Circuit Breaker
- Size:
- 2.25 Inch W x 2.91 Inch D x 3 Inch H
MSRP $307.65Surplus $83.07 -
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Square D QOB320SWN Miniature Circuit Breakers (MCBs)
MSRP $180.22Surplus $183.76SKU: C15-8590 Brand: Square D MPN: QOB320SWN UPC: 78312601146 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-8590
- TS PIK:
- 21330959
- Poles:
- 3
- Mounting:
- Bolt-On
- Size:
- 2.25 Inch W x 2.91 Inch D x 3 Inch H
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Catalog:
- SchneiderElectric_00260_9_15_CAT.pdf
- Terminal Type:
- Pressure Plate
- Construction Feature:
- Switching Neutral, Common Trip
- Used On:
- NQ and NQOD Panelboard/Interior
- Approval:
- UL, CSA
- Series:
- QO-SWN
- Current Rating:
- 20 A
- Short Description:
- 120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 3-Pole, Bolt-On Mount, 3-Panel Space, Pressure Plate Terminal, Switch Neutral, Miniature Circuit Breaker
- Type:
- Thermal Magnetic
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SchneiderElectric-SquareD_15211_1_2_DATA.pdf
MSRP $180.22Surplus $183.76 -
Square D QOB330GFI Miniature Circuit Breakers (MCBs) EA
MSRP $1,138.05Surplus $1,303.58SKU: C15-10918 Brand: Square D MPN: QOB330GFI UPC: 78590198922 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10918
- TS PIK:
- 124985533
- Data Sheet:
- SchneiderElectric-SquareD_15219_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00894_INST.pdf
- Used On:
- NQ Panelboard/Interior
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Type:
- Miniature, Thermal Magnetic
- Prop 65 Warning:
- Yes
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Size:
- 2.25 Inch W x 2.91 Inch D x 4.12 Inch H
- Short Description:
- 208 VAC Star/120 VAC, 30 A, 10 kA Interrupt, 3-Pole, Bolt-On Mount, 3-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Mounting:
- Bolt-On
- Series:
- QOB
- Current Rating:
- 30 A
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 208 VAC Star/120 VAC at 50/60 Hz
- Approval:
- UL, CSA
- Trip Sensitivity:
- 6 MilliA
- Country of Origin:
- Mexico
MSRP $1,138.05Surplus $1,303.58 -
Square D QOB350GFI Miniature Circuit Breakers (MCBs) EA
MSRP $1,138.05Surplus $1,303.58SKU: C15-10919 Brand: Square D MPN: QOB350GFI UPC: 78590169018 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10919
- TS PIK:
- 124273845
- Short Description:
- 208 VAC Star/120 VAC, 50 A, 10 kA Interrupt, 3-Pole, Bolt-On Mount, 3-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Series:
- QOB
- Prop 65 Warning:
- Yes
- Data Sheet:
- SchneiderElectric-SquareD_15232_1_2_DATA.pdf
- Type:
- Miniature, Thermal Magnetic
- Number of Poles:
- 3
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Current Rating:
- 50 A
- Voltage Rating:
- 208 VAC Star/120 VAC at 50/60 Hz
- Mounting:
- Bolt-On
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Installation/Operator:
- SchneiderElectric-SquareD_00894_INST.pdf
- Used On:
- NQ Panelboard/Interior
- Interrupting Rating:
- 10 kA
- Size:
- 2.25 Inch W x 2.91 Inch D x 4.12 Inch H
- Approval:
- UL, CSA
- Trip Sensitivity:
- 6 MilliA
- Country of Origin:
- Mexico
MSRP $1,138.05Surplus $1,303.58 -
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Square D QOM100VH Miniature Circuit Breakers (MCBs) QOM 2P 100A 120V 50/60Hz 1Ph
MSRP $273.62Surplus $182.96Square D QOM100VH Miniature Circuit Breakers (MCBs) QOM 2P 100A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2182 Brand: Square D MPN: QOM100VH UPC: 785901004035 Shipping Weight: 1.28 Shipping...- SKU:
- C15-2182
- Series:
- QOM
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 5 Inch Width x 3.47 Inch Depth x 5.09 Inch Height
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- QO Load Center
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 22 kA Interrupt, 2-Pole, Bolt-On Mount
- Catalog:
- SchneiderElectric-SquareD_03264_1_10_1_22_1_24_1_39_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53489_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Number of Poles:
- 2
- Current Rating:
- 100 A
- Voltage Rating:
- 240 VAC
MSRP $273.62Surplus $182.96 -
Square D QOM100VH8106 Miniature Circuit Breakers (MCBs) EA
MSRP $329.43Surplus $94.13Square D QOM100VH8106 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9374 Brand: Square D MPN: QOM100VH8106 UPC: Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-9374
- TS PIK:
- 122966518
- Data Sheet:
- SchneiderElectric-SquareD_05139_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 22 kA, 2-Pole, 12 to 2/0 AWG Aluminum/Copper, Bolt-On Mount, Miniature Circuit Breaker
- Wire Size:
- 12 to 2/0 AWG (Aluminum/Copper)
- Interrupting Rating:
- 22 kA
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 100 A
- CAD Drawings:
- SchneiderElectric-SquareD_05485_1_CAD.pdf
- Mounting:
- Bolt-On
- Number of Poles:
- 1
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $329.43Surplus $94.13 -
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Square D QOM2125MM Molded Case Breakers (MCCBs)
MSRP $1,212.92Surplus $327.49SKU: C15-17919 Brand: Square D MPN: QOM2125MM UPC: 78590132427 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17919
- Current Rating:
- 125 A
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC
- Catalog:
- SchneiderElectric-SquareD_08307_8_20_CAT.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 125 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, Lug Terminal, Main Circuit Breaker
- Series:
- QOM
- Used On:
- QO Load Center, Metering Equipment
- Terminal Type:
- Lug
- Interrupting Rating:
- 10 kA
- Type:
- Main
- Installation/Operator:
- SchneiderElectric-SquareD_00343_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_15298_1_2_DATA.pdf
- Wire Size:
- 4 AWG to 300 KCMIL (Copper/Aluminum)
- Mounting:
- Bolt-On
- Number of Poles:
- 2
- CAD Drawings:
- SchneiderElectric-SquareD_17868_1_CAD.pdf
MSRP $1,212.92Surplus $327.49 -
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Square D QOM2125VH Miniature Circuit Breakers (MCBs) QOM 2P 125A 120V 50/60Hz 1Ph
MSRP $637.09Surplus $396.41Square D QOM2125VH Miniature Circuit Breakers (MCBs) QOM 2P 125A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2220 Brand: Square D MPN: QOM2125VH UPC: 785901021971 Shipping Weight: 2.57 Shipping...- SKU:
- C15-2220
- Series:
- QOM
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Approval:
- IEC
- Size:
- 5.07 Inch Width x 3.6 Inch Depth x 5.6 Inch Height
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- QO Load Center
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 4 AWG to 300 KCMIL (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 125 A, 22 kA Interrupt, 2-Pole, Bolt-On Mount, Lug Terminal
- Catalog:
- SchneiderElectric-SquareD_03264_1_10_1_23_1_24_1_35-1_37_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53504_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Number of Poles:
- 2
- CAD Drawings:
- SchneiderElectric-SquareD_17868_1_CAD.pdf
- Current Rating:
- 125 A
- Voltage Rating:
- 240 VAC
MSRP $637.09Surplus $396.41 -
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Square D QOM2200MM Main Breakers
MSRP $594.62Surplus $521.43SKU: U00-8598 Brand: Square D MPN: QOM2200MM UPC: 78590176522 Shipping Weight: 2.70 lbs. Shipping Height: 5.00 In. Shipping Length: 7.00 In. Shipping Width: 6.00 In...- SKU:
- U00-8598
- TS PIK:
- 115543029
- Approval:
- UL, CSA
- Wire Size:
- 4 AWG to 300 KCMIL (Copper/Aluminum)
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC 50/60 Hz, 200 A, 10 kA, 2-Pole, Lug Terminal, Bolt-On Mount, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Current Rating:
- 200 A
- Used On:
- QO Load Center, Metering Equipment
- Voltage Rating:
- 120/240 VAC
- Series:
- QOM
- Type:
- Main
- Terminal Type:
- Lug
- Installation/Operator:
- SchneiderElectric-SquareD_00344_INST.pdf
- Mounting:
- Bolt-On
MSRP $594.62Surplus $521.43 -
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Square D QON3B Circuit Breaker Accessories
MSRP $57.08Surplus $15.41SKU: C15-17936 Brand: Square D MPN: QON3B UPC: 78590144022 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17936
- Type:
- Mounting Base
- Data Sheet:
- SchneiderElectric-SquareD_15325_1_DATA.pdf
- Number of Breakers:
- 3
- Mounting:
- Bolt-On
- Short Description:
- 4.2" x 1.35", 240 VAC 3-Phase, 100 A, Bolt-On Mount, 3-Pole, 3-Space, Mounting Base for QOB Series Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_03280_7_17_CAT.pdf
- Prop 65 Warning:
- Yes
- Installation/Operator:
- SchneiderElectric-SquareD_00004_INST.pdf
- Used On:
- QOB/QOB-GFI/QOB-EPD Series Circuit Breaker
MSRP $57.08Surplus $15.41
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