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 BDA160403 Molded Case Breakers (MCCBs)
MSRP $271.00Surplus $73.17SKU: C15-18661 Brand: Square D MPN: BDA160403 UPC: 60648115120 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18661
- Series:
- BD
- Terminal Type:
- I-Line Connection Line Lug Load
- Approval:
- UL, CSA, CE
- Frame Type:
- B
- Installation/Operator:
- SchneiderElectric-SquareD_00231_INST.pdf
- Current Rating:
- 40 A
- Maximum AC Voltage Rating:
- 347 V
- Maximum DC Voltage Rating:
- 125 V
- Short Description:
- 600 Star/347 VAC 50/60 Hz, 125 VDC, 40 A, 14 kA, 1-Pole, B-Frame, B Phase, I-Line Connection Line Lug Load Terminal, Thermal Magnetic, Molded Case Circuit Breaker
- Number of Poles:
- 1
- Data Sheet:
- SchneiderElectric-SquareD_34738_1-4_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_31_7_32_CAT.pdf
- Size:
- 1.06 Inch Width x 3.5 Inch Depth x 5.39 Inch Height
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC, 10 kA at 125 VDC
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz, 125 VDC
- Type:
- Thermal Magnetic
- CAD Drawings:
- SchneiderElectric-SquareD_73363_1_CAD.pdf
MSRP $271.00Surplus $73.17 -
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Square D BDA160405 Molded Case Breakers (MCCBs)
MSRP $271.00Surplus $73.17SKU: C15-15429 Brand: Square D MPN: BDA160405 UPC: 60648115135 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15429
- Series:
- BD
- Short Description:
- 600 Star/347 VAC 50/60 Hz, 125 VDC, 40 A, 14 kA, 1-Pole, B-Frame, C Phase, I-Line Connection Line Lug Load Terminal, Thermal Magnetic, Molded Case Circuit Breaker
- Number of Poles:
- 1
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC, 10 kA at 125 VDC
- Current Rating:
- 40 A
- Frame Type:
- B
- Maximum AC Voltage Rating:
- 347 V
- Installation/Operator:
- SchneiderElectric-SquareD_00231_INST.pdf
- Maximum DC Voltage Rating:
- 125 V
- CAD Drawings:
- SchneiderElectric-SquareD_73364_1_CAD.pdf
- Data Sheet:
- SchneiderElectric-SquareD_34739_1-4_DATA.pdf
- Terminal Type:
- I-Line Connection Line Lug Load
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz, 125 VDC
- Approval:
- UL, CSA, CE
- Type:
- Thermal Magnetic
- Catalog:
- SchneiderElectric-SquareD_32357_7_31_7_32_CAT.pdf
- Size:
- 1.06 Inch Width x 3.5 Inch Depth x 5.39 Inch Height
MSRP $271.00Surplus $73.17 -
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Square D EDB14040 Miniature Circuit Breakers (MCBs)
MSRP $150.00Surplus $90.44Square D EDB14040 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6357 Brand: Square D MPN: EDB14040 UPC: 78590187895 Shipping Weight: 1.25 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-6357
- TS PIK:
- 115178510
- Voltage Rating:
- 277 VAC
- Interrupting Rating:
- 18 kA at 480 Star/277 VAC
- Current Rating:
- 40 A
- Series:
- EDB
- Type:
- Thermal Magnetic, Branch, Miniature
- Short Description:
- 277 VAC, 40 A, 18 kA, 1-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Number of Poles:
- 1
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_45557_1_2_DATA.pdf
- Used On:
- NF Merchandised Panelboard
- Country of Origin:
- Mexico
- Approval:
- UL (Canada and US), IEC
- Installation:
- Bolt-On
- Application:
- Lighting
- Trip Setting:
- 630 A (Hold), 1800 A (Trip)
MSRP $150.00Surplus $90.44 -
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Square D EGB14040 Miniature Circuit Breakers (MCBs)
MSRP $255.00Surplus $146.30SKU: C15-6614 Brand: Square D MPN: EGB14040 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6614
- Short Description:
- 277 VAC, 40 A, 35 kA, 1-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Used On:
- NF Merchandised Panelboard
- Current Rating:
- 40 A
- Voltage Rating:
- 277 VAC
- Type:
- Thermal Magnetic, Branch, Miniature
- Series:
- EGB
- Interrupting Rating:
- 35 kA at 480 Star/277 VAC
- Number of Poles:
- 1
- Data Sheet:
- SchneiderElectric-SquareD_45651_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Approval:
- UL (Canada and US)
- Trip Setting:
- 630 A (Hold), 1800 A (Trip)
- Application:
- Lighting
MSRP $255.00Surplus $146.30 -
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Square D EJB14040 Molded Case Breakers (MCCBs)
MSRP $238.00Surplus $64.26SKU: C15-18722 Brand: Square D MPN: EJB14040 UPC: 78590113054 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18722
- Number of Poles:
- 1
- Series:
- EJB
- Approval:
- UL (Canada and US)
- Voltage Rating:
- 277 VAC
- Application:
- Lighting
- Interrupting Rating:
- 65 kA at 480 Star/277 VAC
- Trip Setting:
- 630 A (Hold), 1800 A (Trip)
- Installation:
- Bolt-On
- Used On:
- NF Merchandised Panelboard
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Short Description:
- 277 VAC, 40 A, 65 kA, 1-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_45703_1_2_DATA.pdf
- Type:
- Thermal Magnetic, Branch, Miniature
- Current Rating:
- 40 A
MSRP $238.00Surplus $64.26 -
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Square D FA14040A Molded Case Breakers (MCCBs)
MSRP $436.00Surplus $249.20SKU: C15-8660 Brand: Square D MPN: FA14040A UPC: Shipping Weight: 2.00 lbs. Shipping Height: 6.40 In. Shipping Length: 4.13 In. Shipping Width: 1.50 In. Product...- SKU:
- C15-8660
- Used On:
- Class 650/651 I-Line Panelboard/Switchboard
- Short Description:
- 120/240/277/480 VAC, 125 VDC, 40 A, 10/18/25 kA, 1-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_04226_1_2_DATA.pdf
- Current Rating:
- 40 A
- Series:
- FA
- Number of Poles:
- 1
- Catalog:
- SchneiderElectric-SquareD_00096_25_28_CAT.pdf
- Type:
- Molded Case, Thermal Magnetic
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Voltage Rating:
- 240/480 VAC at 50/60 Hz, 480 VAC Star/277 VAC (UL/CSA/NOM), 240 VAC at 50/60 Hz (IEC), 125 VDC
- Approval:
- UL, CSA
- Interrupting Rating:
- 25 kA at 240 VAC (UL/CSA/NOM), 18 kA at 240 VAC (IEC)
- Application:
- Power Distribution
- Trip Setting:
- 400 to 850 A
MSRP $436.00Surplus $249.20 -
Square D HOM140 Miniature Circuit Breakers (MCBs) 40A 120V
MSRP $26.30Surplus $7.45Square D HOM140 Miniature Circuit Breakers (MCBs) 40A 120V​ ARCA SKU: C15-6440 Brand: Square D MPN: HOM140 UPC: 78590106524 Shipping Weight: 0.35 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6440
- TS PIK:
- 21033066
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Installation/Operator:
- SchneiderElectric-SquareD_00099_INST.pdf
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Type:
- Standard
- Short Description:
- 120/240 VAC, 40 A, 10 kA Interrupt, 1-Pole, 8 to 2 AWG Aluminum/Copper, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric_00257_1_19_1_39_7_22_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13427_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Plug-On
- Size:
- 1 Inch Width x 2.98 Inch Depth x 3.13 Inch Height
- Number of Poles:
- 1
- Current Rating:
- 40 A
- Used On:
- Load Center
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $26.30Surplus $7.45 -
Square D QO140 Miniature Circuit Breakers (MCBs) 40A 120V
MSRP $29.10Surplus $11.18Square D QO140 Miniature Circuit Breakers (MCBs) 40A 120V​ ARCA SKU: C15-6449 Brand: Square D MPN: QO140 UPC: 78590140018 Shipping Weight: 0.30 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6449
- TS PIK:
- 123180738
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric-SquareD_53406_1_2_DATA.pdf
- Current Rating:
- 40 A
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Series:
- QO
- Terminal Type:
- Box Lug
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 5/10 kA Interrupt, 1-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 1
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Type:
- Common Trip, Miniature, Standard
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Installation/Operator:
- SchneiderElectric-SquareD_01259_INST.pdf
- Interrupting Rating:
- 5/10 kA
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $29.10Surplus $11.18 -
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Square D QOB1401021 Molded Case Breakers (MCCBs)
MSRP $230.00Surplus $62.10SKU: C15-18865 Brand: Square D MPN: QOB1401021 UPC: 78590149422 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18865
- Catalog:
- SchneiderElectric-Telemecanique_00033_1_2_9_16_CAT.pdf
- Series:
- QOB
- Installation:
- Bolt-On
- Data Sheet:
- SchneiderElectric_11051_1_2_DATA.pdf
- Type:
- Miniature, Standard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Used On:
- NQ Panelboard
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Current Rating:
- 40 A
- Approval:
- UL, CSA
- Number of Poles:
- 1
- Installation/Operator:
- SchneiderElectric_00595_INST.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 40 A, 10 kA, 1-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker with 120/208/240 VAC Shunt Trip Package
MSRP $230.00Surplus $62.10 -
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Square D QOU140 Miniature Circuit Breakers (MCBs) QOU 1P 40A 240V 50/60Hz 1Ph
MSRP $50.00Surplus $24.21Square 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 $50.00Surplus $24.21 -
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TEY140 Miniature Circuit Breakers (MCBs) 1P 40A 277VAC
MSRP $147.03Surplus $111.72TEY140 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 $147.03Surplus $111.72 -
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THQL1140 Miniature Circuit Breakers (MCBs) THQL 1P 40A 240V
MSRP $53.82Surplus $10.91THQL1140 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 $53.82Surplus $10.91
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