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
- Price
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Contact Us For Quote
Square D QOB240VH Miniature Circuit Breakers (MCBs) QOB 2P 40A 120V 50/60Hz 1Ph
MSRP $171.00Surplus $83.79Square D QOB240VH Miniature Circuit Breakers (MCBs) QOB 2P 40A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2179 Brand: Square D MPN: QOB240VH UPC: 785901054764 Shipping Weight: 38.00 Shipping...- SKU:
- C15-2179
- Series:
- QOB-VH
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Volts:
- 240 VAC 50/60 Hertz
- Amps:
- 32 A
- Used On:
- NQ Panelboard
- Poles:
- 2
- Interrupting Rating:
- 22 kA at 240 VAC
- Installation:
- Bolt-On
- Short Description:
- 240 VAC 50/60 Hz, 40 A, 22 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21314_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Current Rating:
- 40 A
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Number of Poles:
- 2
MSRP $171.00Surplus $83.79 -
Contact Us For Quote
Square D QOB245 Everything Else
MSRP $74.15Surplus $31.04Square D QOB245 Everything Else​ ARCA SKU: C15-6682 Brand: Square D MPN: QOB245 UPC: 78590136830 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0...- SKU:
- C15-6682
- TS PIK:
- 111088205
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 45 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Series:
- QOB
- Current Rating:
- 45 A
- Number of Poles:
- 2
- Type:
- Miniature, Standard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Used On:
- NQ Panelboard
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Data Sheet:
- SchneiderElectric_21335_1_2_DATA.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
MSRP $74.15Surplus $31.04 -
Contact Us For Quote
Square D QOB250GFI Miniature Circuit Breakers (MCBs)
MSRP $595.00Surplus $139.02SKU: 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
MSRP $595.00Surplus $139.02 -
Square D QOB260GFI Miniature Circuit Breakers (MCBs) EA
MSRP $444.00Surplus $217.19SKU: 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
MSRP $444.00Surplus $217.19 -
Square D QOB260VH Miniature Circuit Breakers (MCBs) 2P 60A
MSRP $184.68Surplus $64.49Square D QOB260VH Miniature Circuit Breakers (MCBs) 2P 60A​ ARCA SKU: C15-6662 Brand: Square D MPN: QOB260VH UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6662
- TS PIK:
- 21356089
- Type:
- Miniature, Standard
- Used On:
- NQ Panelboard
- Interrupting Rating:
- 22 kA at 240 VAC
- Short Description:
- 240 VAC 50/60 Hz, 60 A, 22 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Current Rating:
- 60 A
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Series:
- QOB-VH
- Data Sheet:
- SchneiderElectric_21347_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Number of Poles:
- 2
MSRP $184.68Surplus $64.49 -
Square D QOB270 Miniature Circuit Breakers (MCBs) 2P 70A 120V
MSRP $181.44Surplus $69.16Square 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
MSRP $181.44Surplus $69.16 -
Square D QOB290 Miniature Circuit Breakers (MCBs) 2P 90A 120V
MSRP $320.00Surplus $41.78Square D QOB290 Miniature Circuit Breakers (MCBs) 2P 90A 120V​ ARCA SKU: C15-3769 Brand: Square D MPN: QOB290 UPC: 78590101969 Shipping Weight: 0.75 lbs. Shipping Height: 2.00 In...- SKU:
- C15-3769
- 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 kA at 48 Volt DC
- Installation:
- Bolt-On
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 90 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21354_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 111080228
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 90 A
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $320.00Surplus $41.78 -
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Square D QOB3100VH1021 Molded Case Breakers (MCCBs) EA
MSRP $818.00Surplus $292.38Square D QOB3100VH1021 Molded Case Breakers (MCCBs) EA​ ARCA SKU: C15-9344 Brand: Square D MPN: QOB3100VH1021 UPC: 78590108875 Shipping Weight: 1.30 lbs. Shipping Height: 3.25 In...- SKU:
- C15-9344
MSRP $818.00Surplus $292.38 -
Square D QOB3110VH Miniature Circuit Breakers (MCBs)
MSRP $1,582.51Surplus $1,043.69SKU: C15-7734 Brand: Square D MPN: QOB3110VH UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7734
- Series:
- QOB-VH
- Type:
- Miniature, Standard
- Data Sheet:
- SchneiderElectric_21363_1_2_DATA.pdf
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Current Rating:
- 110 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Installation/Operator:
- SchneiderElectric-SquareD_02167_INST.pdf
- Number of Poles:
- 3
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Used On:
- NQ Panelboard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 110 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Country of Origin:
- United States
MSRP $1,582.51Surplus $1,043.69 -
Square D QOB3125VH Miniature Circuit Breakers (MCBs) QOB 3P 25A 120V 50/60Hz 3Ph EA
MSRP $1,582.51Surplus $1,142.47SKU: C15-4926 Brand: Square D MPN: QOB3125VH UPC: 78590106547 Shipping Weight: 3.95 lbs. Shipping Height: 6.00 In. Shipping Length: 7.00 In. Shipping Width: 5.00 In...- SKU:
- C15-4926
- Series:
- QOB-VH
- 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:
- 3
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Installation:
- Bolt-On
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 125 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21365_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02167_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Current Rating:
- 125 A
- Number of Poles:
- 3
MSRP $1,582.51Surplus $1,142.47 -
Square D QOB3150VH Miniature Circuit Breakers (MCBs)
Surplus $1,485.00Square D QOB3150VH Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8653 Brand: Square D MPN: QOB3150VH UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-8653
- TS PIK:
- 21331644
- Series:
- QOB-VH
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Current Rating:
- 150 A
- Number of Poles:
- 3
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 150 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Used On:
- NQ Panelboard
- Data Sheet:
- SchneiderElectric_21367_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Type:
- Miniature, Standard
- Installation/Operator:
- SchneiderElectric-SquareD_02167_INST.pdf
Surplus $1,485.00 -
Square D QOB320GFI Miniature Circuit Breakers (MCBs) EA
MSRP $836.00Surplus $809.97SKU: C15-10917 Brand: Square D MPN: QOB320GFI UPC: 78590173222 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10917
- TS PIK:
- 124985152
MSRP $836.00Surplus $809.97 -
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Square D QOB320SWN Miniature Circuit Breakers (MCBs)
MSRP $132.39Surplus $134.99Square D QOB320SWN Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8590 Brand: Square D MPN: QOB320SWN UPC: 78312601146 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- C15-8590
- TS PIK:
- 21330959
MSRP $132.39Surplus $134.99 -
Square D QOB320SWN1021 Miniature Circuit Breakers (MCBs) 3P 20A
MSRP $359.00Surplus $65.13Square D QOB320SWN1021 Miniature Circuit Breakers (MCBs) 3P 20A​ ARCA SKU: C15-6557 Brand: Square D MPN: QOB320SWN1021 UPC: 60648614549 Shipping Weight: 1.15 lbs. Shipping Height: 4...- SKU:
- C15-6557
- TS PIK:
- 118952302
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $359.00Surplus $65.13 -
Square D QOB330GFI Miniature Circuit Breakers (MCBs) EA
MSRP $836.00Surplus $809.97SKU: 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
MSRP $836.00Surplus $809.97 -
Square D QOB330SWN Miniature Circuit Breakers (MCBs)
MSRP $170.00Surplus $81.36Square D QOB330SWN Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6471 Brand: Square D MPN: QOB330SWN UPC: 78590136832 Shipping Weight: 0.90 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6471
- TS PIK:
- 115293035
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $170.00Surplus $81.36 -
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Square D QOB330VH1021 Miniature Circuit Breakers (MCBs)
MSRP $629.00Surplus $280.37Square D QOB330VH1021 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6663 Brand: Square D MPN: QOB330VH1021 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6663
MSRP $629.00Surplus $280.37 -
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Square D QOB345 Miniature Circuit Breakers (MCBs)
MSRP $112.98Surplus $101.08Square D QOB345 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6559 Brand: Square D MPN: QOB345 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6559
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 45 A, 10 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Number of Poles:
- 3
- Used On:
- NQ Panelboard
- Approval:
- UL, CSA
- Series:
- QOB
- Current Rating:
- 45 A
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Data Sheet:
- SchneiderElectric_21396_1_2_DATA.pdf
- Installation:
- Bolt-On
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
MSRP $112.98Surplus $101.08 -
Contact Us For Quote
Square D QOB3501021 Miniature Circuit Breakers (MCBs)
MSRP $482.00Surplus $206.67Square D QOB3501021 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6667 Brand: Square D MPN: QOB3501021 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6667
MSRP $482.00Surplus $206.67 -
Square D QOB350GFI Miniature Circuit Breakers (MCBs) EA
MSRP $836.00Surplus $809.97SKU: 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
MSRP $836.00Surplus $809.97
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