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 HOM120AFI Miniature Circuit Breakers (MCBs)
MSRP $225.00Surplus $67.94Square D HOM120AFI Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6370 Brand: Square D MPN: HOM120AFI UPC: 78590130132 Shipping Weight: 0.70 lbs. Shipping Height: 1.50 In...- SKU:
- C15-6370
- TS PIK:
- 121750907
- Catalog:
- SchneiderElectric_00257_1_19_CAT.pdf
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Type:
- Thermal Magnetic
- Size:
- 1 Inch W x 2.98 Inch D x 3.13 Inch H
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Used On:
- Loadcenter
- Data Sheet:
- SchneiderElectric-SquareD_13420_1_2_DATA.pdf
- Terminal Type:
- Screw ClA
- Installation/Operator:
- SchneiderElectric-SquareD_00002_INST.pdf
- Current Rating:
- 20 A
- Short Description:
- 120 VAC, 20 A, 10 kA Interrupt, 1-Pole, 14 to 8 AWG Aluminum/Copper, Plug-In Mount, Miniature Circuit Breaker
- Number of Poles:
- 1
- Country of Origin:
- Mexico
- Application:
- HACR
- Construction Feature:
- ARC Fault Circuit Interrupter
- Approval:
- UL, CSA
- Poles:
- 1
MSRP $225.00Surplus $67.94 -
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Square D QO220SWN1021 Miniature Circuit Breakers (MCBs)
MSRP $284.00Surplus $345.80Square D QO220SWN1021 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6537 Brand: Square D MPN: QO220SWN1021 UPC: 78590108825 Shipping Weight: 0.90 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6537
- TS PIK:
- 109595098
- Type:
- Thermal Magnetic
- CAD Drawings:
- SchneiderElectric-SquareD_03058_1_CAD.pdf
- Series:
- QO-SWN
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Pressure Plate
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Current Rating:
- 20 A
- Short Description:
- 120 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 2-Pole, Plug-In Mount, 3-Panel Space, Pressure Plate Terminal, Switch Neutral, AC Shunt Trip, Miniature Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_03280_7_6_7_9_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_14957_1_2_DATA.pdf
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Mounting:
- Plug-On
- Used On:
- NQOD Panelboard, QO Loadcenter, Speed-D Switchboard Distribution Panel
- Number of Poles:
- 2
- Country of Origin:
- United States
- Construction Feature:
- Switching Neutral, Common Trip
- Application:
- Gas Pump
- Approval:
- UL, CSA
- Poles:
- 2
MSRP $284.00Surplus $345.80 -
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Square D QO120EPD2100 Molded Case Breakers (MCCBs)
MSRP $820.00Surplus $221.40SKU: C15-17735 Brand: Square D MPN: QO120EPD2100 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17735
- Number of Poles:
- 1
- Current Rating:
- 20 A
- Interrupting Rating:
- 10 kA
- Prop 65 Warning:
- Yes
- Data Sheet:
- SchneiderElectric-SquareD_14842_1_2_DATA.pdf
- Type:
- Thermal Magnetic, Equipment Protector
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Series:
- QO-EPD
- Short Description:
- 120 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, Plug-On Mount, 2-Panel Space, Pressure Plate Terminal, 30 mA Class B Ground Fault, Alarm Switch, Miniature Circuit Breaker
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Terminal Type:
- Pressure Plate
- Used On:
- QO Loadcenter, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Size:
- 0.75 Inch W x 2.91 Inch D x 4.12 Inch H
- Approval:
- UL, CSA
- Mounting:
- Plug-On
- Installation/Operator:
- SchneiderElectric-SquareD_00881_INST.pdf
MSRP $820.00Surplus $221.40 -
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Square D QO120HM Miniature Circuit Breakers (MCBs) QO 1P 20A 120V 50/60Hz 1Ph
MSRP $30.60Surplus $29.40Square D QO120HM Miniature Circuit Breakers (MCBs) QO 1P 20A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2204 Brand: Square D MPN: QO120HM UPC: 785901400110 Shipping Weight: 2.76 Shipping Height: 0.00...- SKU:
- C15-2204
- Series:
- QO-HM
- Type:
- Main Lug
- Approval:
- UL
- Approval:
- CSA
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Volts:
- 120 VAC at 50/60 Hz (UL/CSA)
- Amps:
- 32 A
- Used On:
- NQOD Panelboard
- Used On:
- QO Loadcenter
- Used On:
- Speed-D Switchboard Distribution Panel
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Enclosure:
- NEMA 1
- Enclosure:
- Indoor
- Terminal Type:
- Pressure Plate
- Application:
- HACR
- Application:
- Dimmer
- Application:
- Fluorescent Lighting
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Poles:
- 1
- Short Description:
- 120 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, Plug-In Mount, 1-Panel Space, Pressure Plate Terminal, High Magnetic Trip
- Catalog:
- SchneiderElectric_00260_7_14_CAT.pdf
- Installation/Operator:
- Eaton_00231_INST.pdf
- Current Rating:
- 20 A
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Data Sheet:
- SchneiderElectric-SquareD_14846_1_2_DATA.pdf
MSRP $30.60Surplus $29.40 -
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Square D QO120VHAFI Molded Case Breakers (MCCBs)
MSRP $433.00Surplus $116.91SKU: C15-17739 Brand: Square D MPN: QO120VHAFI UPC: 78590168299 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17739
- Terminal Type:
- Pressure Plate
- Mounting:
- Plug-On
- Current Rating:
- 20 A
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Application:
- HACR
- Used On:
- NQOD Panelboard, QO Loadcenter, Speed-D Switchboard Distribution Panel
- Type:
- Thermal Magnetic
- Installation/Operator:
- SchneiderElectric-SquareD_00217_INST.pdf
- Interrupting Rating:
- 22 kA
- Short Description:
- 120 VAC 50/60 Hz, 20 A, 22 kA Interrupt, 1-Pole, Plug-On Mount, 1-Panel Space, Pressure Plate Terminal, Arc Fault, Pigtail, Miniature Circuit Breaker
- Series:
- QO-AFI
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Prop 65 Warning:
- Yes
- Data Sheet:
- SchneiderElectric-SquareD_14855_1_2_DATA.pdf
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Poles:
- 1
- Approval:
- UL 1699, CSA
MSRP $433.00Surplus $116.91 -
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Square D QO120VHCAFI Molded Case Breakers (MCCBs)
MSRP $1,003.00Surplus $270.81SKU: C15-17740 Brand: Square D MPN: QO120VHCAFI UPC: 78590170983 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-17740
- Short Description:
- 120/240 VAC 50/60 Hz, 20 A, 22 kA Interrupt, 1-Pole, Plug-On Mount, 1-Panel Space, Pressure Plate Terminal, Combination Arc Fault, Pigtail, Miniature Circuit Breaker
- Prop 65 Warning:
- Yes
- Series:
- QO-AFI
- Current Rating:
- 20 A
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Interrupting Rating:
- 22 kA
- Type:
- Thermal Magnetic
- Catalog:
- SchneiderElectric_00260_1_5_CAT.pdf
- Approval:
- UL, CSA
- Poles:
- 1
- Application:
- HACR
- Terminal Type:
- Pressure Plate
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Data Sheet:
- SchneiderElectric-SquareD_14856_1_2_DATA.pdf
- Mounting:
- Plug-On
- Used On:
- NQOD Panelboard, QO Loadcenter, Speed-D Switchboard Distribution Panel
- Installation/Operator:
- SchneiderElectric-SquareD_00197_INST.pdf
MSRP $1,003.00Surplus $270.81 -
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Square D QO120VHGFI Molded Case Breakers (MCCBs)
MSRP $875.00Surplus $236.25SKU: C15-17741 Brand: Square D MPN: QO120VHGFI UPC: 78590152061 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17741
- Series:
- QO-VHGFI
- Size:
- 0.75 Inch W x 2.91 Inch D x 4.12 Inch H
- Short Description:
- 120 VAC 50/60 Hz, 20 A, 22 kA Interrupt, 1-Pole, Plug-On Mount, 1-Panel Space, Pressure Plate Terminal, 6 mA Class A Ground Fault, Pigtail, Miniature Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_14857_1_2_DATA.pdf
- Number of Poles:
- 1
- Current Rating:
- 20 A
- Terminal Type:
- Pressure Plate
- Interrupting Rating:
- 22 kA
- Catalog:
- SchneiderElectric-SquareD_03264_1_5_CAT.pdf
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Installation/Operator:
- SchneiderElectric-SquareD_00193_INST.pdf
- Used On:
- QO Loadcenter, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Approval:
- UL, CSA
- Prop 65 Warning:
- Yes
- Mounting:
- Plug-On
- Type:
- Thermal Magnetic, Equipment Protector
MSRP $875.00Surplus $236.25 -
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Square D QO220SWN Miniature Circuit Breakers (MCBs)
Surplus $186.20Square D QO220SWN Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6642 Brand: Square D MPN: QO220SWN UPC: 78590140039 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6642
- TS PIK:
- 597383
- Data Sheet:
- SchneiderElectric-SquareD_14956_1_2_DATA.pdf
- Interrupting Rating:
- 10 kA
- Short Description:
- 120 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 2-Pole, Plug-In Mount, 2-Panel Space, Pressure Plate Terminal, Switch Neutral, Miniature Circuit Breaker
- Type:
- Thermal Magnetic
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Series:
- QO-SWN
- Terminal Type:
- Pressure Plate
- Catalog:
- SchneiderElectric_00260_7_14_CAT.pdf
- Used On:
- NQOD Panelboard, QO Loadcenter, Speed-D Switchboard Distribution Panel
- Current Rating:
- 20 A
- Mounting:
- Plug-On
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Approval:
- UL, CSA
- Construction Feature:
- Switching Neutral, Common Trip
- Poles:
- 2
Surplus $186.20 -
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Square D QOB120AFI Miniature Circuit Breakers (MCBs) EA
MSRP $261.00Surplus $186.20Square D QOB120AFI Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-10990 Brand: Square D MPN: QOB120AFI UPC: Shipping Weight: 0.55 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-10990
- Short Description:
- 120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, Bolt-On Mount, 1-Panel Space, Pressure Plate Terminal, Pigtail, Arc Fault, Miniature Circuit Breaker
- Series:
- QOB-AFI
- Terminal Type:
- Pressure Plate
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Current Rating:
- 20 A
- Mounting:
- Bolt-On
- Data Sheet:
- SchneiderElectric-SquareD_15109_1_2_DATA.pdf
- Used On:
- NQ and NQOD Panelboard/Interior
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- CAD Drawings:
- SchneiderElectric-SquareD_03066_1_CAD.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00217_INST.pdf
- Type:
- Thermal Magnetic
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 1
- Construction Feature:
- ARC Fault Circuit Interrupter
- Prop 65 Warning:
- Yes
- Approval:
- UL, CSA
- Poles:
- 1
- Application:
- HACR
MSRP $261.00Surplus $186.20 -
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Square D QOB120HM Molded Case Breakers (MCCBs)
MSRP $67.00Surplus $18.09SKU: C15-17827 Brand: Square D MPN: QOB120HM UPC: 78590134171 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17827
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Terminal Type:
- Pressure Plate
- Interrupting Rating:
- 10 kA
- Current Rating:
- 20 A
- Series:
- QOB-HM
- Installation/Operator:
- SchneiderElectric-SquareD_00832_INST.pdf
- Used On:
- NQ and NQOD Panelboard/Interior
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Mounting:
- Bolt-On
- Poles:
- 1
- Type:
- High Magnetic
- Approval:
- UL, CSA
- Data Sheet:
- SchneiderElectric-SquareD_15114_1_2_DATA.pdf
- Catalog:
- SchneiderElectric_00260_9_15_CAT.pdf
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Application:
- HACR, Dimmer, Fluorescent Lighting
- Short Description:
- 120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, Bolt-On Mount, 1-Panel Space, Pressure Plate Terminal, High Magnetic Trip, Miniature Circuit Breaker
MSRP $67.00Surplus $18.09 -
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Square D QOB120VHCAFI Molded Case Breakers (MCCBs)
MSRP $960.99Surplus $259.47SKU: C15-17830 Brand: Square D MPN: QOB120VHCAFI UPC: 78590167791 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-17830
- Current Rating:
- 20 A
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Type:
- Thermal Magnetic
- Terminal Type:
- Pressure Plate
- Interrupting Rating:
- 22 kA
- Approval:
- UL, CSA
- Data Sheet:
- SchneiderElectric-SquareD_15117_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_03283_9_16_CAT.pdf
- Used On:
- NQ and NQOD Panelboard/Interior
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Poles:
- 1
- Mounting:
- Bolt-On
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Short Description:
- 120 VAC, 20 A, 22 kA, 1-Pole, Bolt-On Mount, Combination ARC Fault Circuit Interrupter
- Installation/Operator:
- SchneiderElectric-SquareD_00197_INST.pdf
- Series:
- QOB-AFI
MSRP $960.99Surplus $259.47 -
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Square D QOB220SWN Molded Case Breakers (MCCBs)
MSRP $225.00Surplus $60.75SKU: C15-17864 Brand: Square D MPN: QOB220SWN UPC: 78590134178 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17864
- Current Rating:
- 20 A
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Voltage Rating:
- 120 VAC at 50/60 Hz (UL/CSA)
- Series:
- QO-SWN
- Short Description:
- 120 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Pressure Plate Terminal, Switch Neutral, Miniature Circuit Breaker
- CAD Drawings:
- SchneiderElectric-SquareD_03058_1_CAD.pdf
- Used On:
- NQ and NQOD Panelboard/Interior
- Data Sheet:
- SchneiderElectric-SquareD_15155_1_2_DATA.pdf
- Type:
- Thermal Magnetic
- Poles:
- 2
- Terminal Type:
- Pressure Plate
- Mounting:
- Bolt-On
- Approval:
- UL, CSA
- Catalog:
- SchneiderElectric-SquareD_03283_9_15_CAT.pdf
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Interrupting Rating:
- 10 kA
MSRP $225.00Surplus $60.75
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.
