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 QOB340VH1021 Molded Case Breakers (MCCBs)
MSRP $1,520.57Surplus $572.47SKU: U00-8595 Brand: Square D MPN: QOB340VH1021 UPC: 78590131131 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- U00-8595
- Approval:
- UL, CSA
- Series:
- QOB
- Number of Poles:
- 3
- Installation:
- Bolt-On
- Type:
- Miniature
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Current Rating:
- 40 A
- Used On:
- NQ Panelboard
- Catalog:
- SchneiderElectric-Telemecanique_00033_1_15_9_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_11156_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric_00595_INST.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 40 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Panelboard Circuit Breaker with 120/208/240 VAC Shunt Trip Package
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
MSRP $1,520.57Surplus $572.47 -
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Square D QOH240 Molded Case Breakers (MCCBs)
MSRP $402.25Surplus $108.62SKU: C15-17907 Brand: Square D MPN: QOH240 UPC: 78590133553 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17907
- Data Sheet:
- SchneiderElectric-SquareD_05138_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 40 A, 42 kA, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Miniature Circuit Breaker
- CAD Drawings:
- SchneiderElectric-SquareD_05484_1_CAD.pdf
- Series:
- QO-H
- Approval:
- UL, CSA
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Number of Poles:
- 2
- Terminal Type:
- Box Lug
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Type:
- Common Trip, Thermal Magnetic
- Mounting:
- Plug-On
- Current Rating:
- 40 A
- Interrupting Rating:
- 42 kA
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
MSRP $402.25Surplus $108.62 -
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Square D QOU140 Miniature Circuit Breakers (MCBs) QOU 1P 40A 240V 50/60Hz 1Ph
MSRP $68.07Surplus $32.96Square D QOU140 Miniature Circuit Breakers (MCBs) QOU 1P 40A 240V 50/60Hz 1Ph​ ARCA SKU: C15-3658 Brand: Square D MPN: QOU140 UPC: 785901418597 Shipping Weight: 0.40 Shipping Height: 1.00...- SKU:
- C15-3658
- Series:
- QOU
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- OEM
- Poles:
- 1
- Mounting:
- DIN Rail
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Slotted Box Lug Line/Load
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21490_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- CAD Drawing:
- SchneiderElectric_30265_1_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Number of Poles:
- 1
- Current Rating:
- 40 A
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $68.07Surplus $32.96 -
Square D QOU240 Miniature Circuit Breakers (MCBs)
MSRP $126.60Surplus $58.03SKU: C15-10927 Brand: Square D MPN: QOU240 UPC: 78590141874 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10927
- TS PIK:
- 111088448
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 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
- Interrupting Rating:
- 10 kA
- Series:
- QOU
- Type:
- Miniature, Standard
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_21584_1_2_DATA.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Current Rating:
- 40 A
- Used On:
- OEM
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $126.60Surplus $58.03 -
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Square D QOU240VH Molded Case Breakers (MCCBs)
MSRP $496.87Surplus $134.16SKU: C15-17957 Brand: Square D MPN: QOU240VH UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-17957
- Series:
- QOU
- Short Description:
- 120/240 VAC, 48 VDC, 40 A, 22 kA, 14 to 2 AWG Aluminum/Copper, 2-Pole, Unit Mount, Standard, Miniature Circuit Breaker
- Terminal Type:
- Box Lug Line/Load Terminal
- Catalog:
- SchneiderElectric-SquareD_03138_7_18_CAT.pdf
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Size:
- 1.5 Inch Width x 2.98 Inch Depth x 5 Inch Height
- Mounting:
- 35 Millimeter DIN-Rail, Flush/Surface
- Type:
- Thermal Magnetic, Common Trip, Main
- Data Sheet:
- SchneiderElectric-SquareD_05147_1_2_DATA.pdf
- Interrupting Rating:
- 22 kA at 120/240 VAC, 5 kA at 48 VDC
- Approval:
- UL, CSA, IEC
- Current Rating:
- 40 A
- Voltage Rating:
- 120/240 VAC, 48 VDC
- Number of Poles:
- 2
- Used On:
- OEM
MSRP $496.87Surplus $134.16 -
Square D QOU340 Miniature Circuit Breakers (MCBs)
MSRP $419.28Surplus $195.70SKU: C15-10934 Brand: Square D MPN: QOU340 UPC: 78590141895 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10934
- TS PIK:
- 111088455
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Series:
- QOU
- Current Rating:
- 40 A
- Interrupting Rating:
- 10 kA
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Used On:
- OEM
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21678_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Number of Poles:
- 3
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $419.28Surplus $195.70 -
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Square D QOU3401021 Molded Case Breakers (MCCBs)
MSRP $647.98Surplus $174.95SKU: C15-17976 Brand: Square D MPN: QOU3401021 UPC: 78590151862 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17976
- Interrupting Rating:
- 10 kA
- Approval:
- UL, CSA
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Used On:
- OEM
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Size:
- 3 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Number of Poles:
- 3
- Data Sheet:
- SchneiderElectric_21679_1_2_DATA.pdf
- Series:
- QOU
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard, Shunt Trip
- Current Rating:
- 40 A
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Shunt Trip, Standard, Miniature Circuit Breaker
MSRP $647.98Surplus $174.95 -
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TEY140 Miniature Circuit Breakers (MCBs) 1P 40A 277VAC
MSRP $200.15Surplus $152.08TEY140 Miniature Circuit Breakers (MCBs) 1P 40A 277VAC​ ARCA SKU: C15-4761 Brand: MPN: TEY140 UPC: 783164182132 Shipping Weight: 0.80 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-4761
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240/277 VAC
- Amps:
- 32 A
- Poles:
- 1
- Interrupting Rating:
- 14 kA at 120/240/277 V AC
- Interrupting Rating:
- 65 kA at 120 Volt AC
- Terminal Type:
- Bolt-On
- Frame Type:
- TEY
- Maximum AC Voltage Rating:
- 277 Volt
- Short Description:
- 480 VAC Star/277 VAC, 40 A, 65 kA Interrupt, 1-Pole, 10 to 4 AWG Aluminum/Copper Integral Load Lug Terminal, 1" Bolt-On Mount, Non-Interchangeable Trip, Compact, Thermal Magnetic
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00542_6_9_6_64_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00022_INST.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01762_1_CAD.pdf
- Voltage Rating:
- 120/240/277 V AC
- Current Rating:
- 40 A
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01762_1_CAD.pdf
- Number of Poles:
- 1
MSRP $200.15Surplus $152.08 -
THQB2140 Miniature Circuit Breakers (MCBs) THQB 2P 40A 120/240V
MSRP $172.54Surplus $61.11THQB2140 Miniature Circuit Breakers (MCBs) THQB 2P 40A 120/240V​ ARCA SKU: C15-4046 Brand: MPN: THQB2140 UPC: 783164012262 Shipping Weight: 0.65 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-4046
- Amps:
- 40 A
- Terminal Type:
- Bolt-On
- Type:
- Thermal Magnetic
- Type:
- Compact
- Short Description:
- 120/240 VAC, 40 A, 10 kA, 2-Pole, 8 to 3 AWG Copper/Aluminum, 1" Bolt-On Mount, Q-Line Frame, Molded Case, Non-Interchangeable/Common Trip, Compact, Fixed Thermal Magnetic, Circuit Breaker
- Current Rating:
- 40 A
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_35_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00005_INST.pdf
- Country of Origin:
- United States
MSRP $172.54Surplus $61.11 -
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THQB22040 Miniature Circuit Breakers (MCBs) THQB 2P 40A 240V
MSRP $270.90Surplus $184.67THQB22040 Miniature Circuit Breakers (MCBs) THQB 2P 40A 240V​ ARCA SKU: C15-3782 Brand: MPN: THQB22040 UPC: 783164012330 Shipping Weight: 0.65 lbs. Shipping Height: 2.00 In...- SKU:
- C15-3782
- Amps:
- 40 A
- Terminal Type:
- Bolt-On
- Type:
- Thermal Magnetic
- Type:
- Compact
- Short Description:
- 240 VAC, 40 A, 10 kA Interrupt, 2-Pole, 8 to 3 AWG Aluminum/Copper Load Lug Terminal, 1" Bolt-On Mount, Q-Line Frame, Non-Interchangeable/Internal Common Trip, Compact, Fixed Thermal Magnetic, Miniature Molded Case Circuit Breaker
- Current Rating:
- 40 A
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00542_6_4_6_5_6_8_6_35_CAT.pdf
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01786_1_CAD.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00024_INST.pdf
MSRP $270.90Surplus $184.67 -
THQB32040 Miniature Circuit Breakers (MCBs) THQB 3P 40A 240V
MSRP $535.33Surplus $102.91THQB32040 Miniature Circuit Breakers (MCBs) THQB 3P 40A 240V​ ARCA SKU: C15-2470 Brand: MPN: THQB32040 UPC: 783164012422 Shipping Weight: 1.15 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-2470
- Amps:
- 40 A
- Terminal Type:
- Bolt-On
- Type:
- Thermal Magnetic
- Type:
- Compact
- Short Description:
- 240 VAC, 40 A, 10 kA, 3-Pole, 8 to 3 AWG Copper/Aluminum, 1" Bolt-On Mount, Q-Line Frame, Molded Case, Non-Interchangeable/Common Trip, Compact, Fixed Thermal Magnetic, Circuit Breaker
- Current Rating:
- 40 A
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_35_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00005_INST.pdf
- Mounting:
- Bolt-On
- Number of Poles:
- 3
- Series:
- THQB
- Country of Origin:
- United States
MSRP $535.33Surplus $102.91 -
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THQL1140 Miniature Circuit Breakers (MCBs) THQL 1P 40A 240V
MSRP $73.27Surplus $14.85THQL1140 Miniature Circuit Breakers (MCBs) THQL 1P 40A 240V​ ARCA SKU: C15-3820 Brand: MPN: THQL1140 UPC: 783164012880 Shipping Weight: 0.30 Shipping Height: 1.00 In. Shipping...- SKU:
- C15-3820
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 1
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Terminal Type:
- Plug-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120/240 VAC, 40 A, 10 kA Interrupt, 1-Pole, (1) 8 to 3 AWG Aluminum/Copper Load Lug Terminal, 1" Plug-In Mount, Q-Line Frame, Non-Interchangeable Trip, Compact, Fixed Thermal Magnetic
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00542_1_7_CAT.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01789_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 40 A
- Number of Poles:
- 1
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01789_1_CAD.pdf
MSRP $73.27Surplus $14.85 -
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THQL2140ST1 Miniature Circuit Breakers (MCBs) THQL 2P 40A 120V
MSRP $564.94Surplus $274.44SKU: C15-2981 Brand: MPN: THQL2140ST1 UPC: 783164419085 Shipping Weight: 1.05 lbs. Shipping Height: 3.00 In. Shipping Length: 3.50 In. Shipping Width: 3.00 In...- SKU:
- C15-2981
- Volts:
- 120/240 V
- Amps:
- 32 A
- Poles:
- 2
- Interrupting Rating:
- 10 kA
- Short Description:
- 120/240 VAC, 40 A, 10 kA Interrupt, 2-Pole, 8 to 3 AWG Aluminum/Copper Load Lug Terminal, 1" Plug-In Mount, Q-Line Frame, Internal Common Trip, Compact, Fixed Thermal Magnetic
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00542_1_10_CAT.pdf
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 V
MSRP $564.94Surplus $274.44 -
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Unbranded HMCP250W5C Motor Circuit Protector (MCPs) 250A
MSRP $4,271.09Surplus $1,220.27Unbranded HMCP250W5C Motor Circuit Protector (MCPs) 250A​ ARCA SKU: C15-8930 Brand: Unbranded MPN: HMCP250W5C UPC: 78667915036 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- C15-8930
- TS PIK:
- 115927046
- Series:
- C, HMCP
- Frame Type:
- J
- Number of Poles:
- 3
- Catalog:
- Eaton_27487_V4T2_394_V4T2_395_V4T2_401_CAT.pdf
- Maximum DC Voltage Rating:
- 250 V
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 250 A
- Short Description:
- 600 VAC, 250 VDC, 250 A, 1250 to 2500 A Trip, 96.2 to 204 A FLA, 3-Pole, NEMA 5, Non-Aluminum Line and Load Terminal, J Frame, Magnetic, Molded Case, Motor Circuit Protector
- Type:
- Molded Case, Magnetic
- Terminal Type:
- Non-Aluminum Line and Load Terminal
- Size:
- 4.06 Inch Width x 4.13 Inch Depth x 10 Inch Height
- Maximum AC Voltage Rating:
- 600 V
MSRP $4,271.09Surplus $1,220.27
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