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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Eaton CHB240 Miniature Circuit Breakers (MCBs) 2P 40A 240V
MSRP $354.14Surplus $105.75Eaton CHB240 Miniature Circuit Breakers (MCBs) 2P 40A 240V​ ARCA SKU: C15-5017 Brand: Eaton MPN: CHB240 UPC: 78211311248 Shipping Weight: 0.26 lbs. Shipping Height: 2.00 In...- SKU:
- C15-5017
- Amps:
- 40 A
- Mounting:
- Bolt-On
- Poles:
- 2
- Terminal Type:
- Molded Case
- Used On:
- PB Series Panel board
- Volts:
- 240 VAC
- Gauge:
- 0
- Short Description:
- 240 VAC, 40 A, 10 kA, 2-Pole, Bolt-On Mount, Thermal Magnetic, Molded Case, Circuit Breaker
- Series:
- CHB
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Voltage Rating:
- 240 VAC
- Type:
- Molded Case
- Country of Origin:
- Dominican Republic
MSRP $354.14Surplus $105.75 -
Eaton QBHW2040 Miniature Circuit Breakers (MCBs) QBHW 2P 40A 240V 50/60Hz 1Ph EA
MSRP $395.13Surplus $74.30Eaton QBHW2040 Miniature Circuit Breakers (MCBs) QBHW 2P 40A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-1648 Brand: Eaton MPN: QBHW2040 UPC: 786679392751 Shipping Weight: 0.70 lbs. Shipping...- SKU:
- C15-1648
- Series:
- QBHW
- Type:
- Current Limiting
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 22000 A at 120/240 VAC
- Interrupting Rating:
- 5000 Ampere at 24 to 48/62.5/80 VDC
- Terminal Type:
- Extended Tang Line Terminal
- Terminal Type:
- Box Lug Load Terminal
- Wire Size:
- 14 to 4 AWG Aluminum/Copper (Load)
- Short Description:
- 120/240 VAC, 40 A, 22 kA, 2-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_12_CAT.pdf
- Data Sheet:
- Eaton_53933_1-5_DATA.pdf
- TS PIK:
- 21510596
- Number of Poles:
- 2
- Current Rating:
- 40 A
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Dominican Republic
MSRP $395.13Surplus $74.30 -
Crouse-Hinds QBHW2040 Miniature Circuit Breakers (MCBs)
MSRP $395.13Surplus $70.01Crouse-Hinds QBHW2040 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-5768 Brand: Crouse-Hinds MPN: QBHW2040 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-5768
- TS PIK:
- 21510596
- Short Description:
- 120/240 VAC, 40 A, 22 kA, 2-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
- Interrupting Rating:
- 22000 A at 120/240 VAC, 5000 A at 24 to 48/62.5/80 VDC
- Series:
- QBHW
- Catalog:
- Eaton_03771_V4T1_12_CAT.pdf
- Type:
- Thermal Magnetic
- Wire Size:
- 14 to 4 AWG Aluminum/Copper (Load)
- Number of Poles:
- 2
- Mounting:
- Bolt-On
- Terminal Type:
- Extended Tang Line Terminal, Box Lug Load Terminal
- Current Rating:
- 40 A
- Voltage Rating:
- 120/240 VAC
MSRP $395.13Surplus $70.01 -
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Eaton BAB2040H Miniature Circuit Breakers (MCBs) BA 2P 40A 240V 50/60Hz 1Ph
MSRP $464.20Surplus $193.24Eaton BAB2040H Miniature Circuit Breakers (MCBs) BA 2P 40A 240V 50/60Hz 1Ph​ ARCA SKU: C15-1055 Brand: Eaton MPN: BAB2040H UPC: 786679302422 Shipping Weight: 0.65 Shipping Height: 3.50 In...- SKU:
- C15-1055
- Series:
- BAB
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10000 A at 120/240 VAC
- Interrupting Rating:
- 5000 A at 24 to 48/62.5/80 VDC
- Terminal Type:
- Extended Tang Line Terminal
- Terminal Type:
- Box Lug Load Terminal
- Wire Size:
- 14 to 4 AWG Aluminum/Copper (Load)
- Short Description:
- 240 VAC, 40 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_3_V4T1_11_V4T1_12_CAT.pdf
- Voltage Rating:
- 240 VAC
- Current Rating:
- 40 A
- Number of Poles:
- 2
MSRP $464.20Surplus $193.24 -
Eaton BAB2040S Miniature Circuit Breakers (MCBs) BA 2P 40A 120/240V 50/60Hz 1Ph EA
MSRP $707.62Surplus $98.75SKU: C15-1056 Brand: Eaton MPN: BAB2040S UPC: 786679369784 Shipping Weight: 0.95 lbs. Shipping Height: 5.00 In. Shipping Length: 4.00 In. Shipping Width: 4.00 In...- SKU:
- C15-1056
- Series:
- BAB
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10000 A at 120/240 VAC
- Interrupting Rating:
- 5000 A at 24 to 48/62.5/80 VDC
- Terminal Type:
- Extended Tang Line Terminal
- Terminal Type:
- Box Lug Load Terminal
- Wire Size:
- 14 to 4 AWG Aluminum/Copper (Load)
- Short Description:
- 120/240 VAC, 40 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Shunt Trip, Thermal Magnetic
- Catalog:
- Eaton_21247_4_9_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Country of Origin:
- Dominican Republic
MSRP $707.62Surplus $98.75 -
Eaton QBGFT2040 Miniature Circuit Breakers (MCBs)
MSRP $1,116.27Surplus $575.75SKU: C15-2576 Brand: Eaton MPN: QBGFT2040 UPC: 78667602674 Shipping Weight: 0.80 lbs. Shipping Height: 3.00 In. Shipping Length: 6.00 In. Shipping Width: 4.00 In...- SKU:
- C15-2576
- Approval:
- UL 489
- Amps:
- 40 A
- Interrupting Rating:
- 10000 A at 120/240 VAC
- Mounting:
- Bolt-On
- Poles:
- 2
- Size:
- 2.75 Inch Width x 4.5 Inch Depth x 2 Inch Height
- Terminal Type:
- Steel Box Lug Standard Load
- Trip Sensitivity:
- 5 MilliA
- Type:
- GF
- Type:
- Miniature
- Volts:
- 120/240 VAC
- Gauge:
- 14 to 4 AWG/14 to 8 AWG Copper/Aluminum (Standard Load)
- Specification/Technical:
- Eaton_33241_1_SPEC.pdf
- Catalog:
- Eaton_03771_V4T1_3-V4T1_46_CAT.pdf
- Wire Size:
- 14 to 4 AWG/14 to 8 AWG Copper/Aluminum (Standard Load)
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 40 A
- Short Description:
- EATON QB GFCI CIRCUIT BREAkER,GROUND FAULT CIRCUIT BREAkER,40A,10 kAIC,TWO-POLE,
- Series:
- QB
- TS PIK:
- 126205834
- Country of Origin:
- Dominican Republic
MSRP $1,116.27Surplus $575.75 -
Eaton QBHW2040H Molded Case Breakers (MCCBs) EA
MSRP $982.63Surplus $197.50SKU: C15-11055 Brand: Eaton MPN: QBHW2040H UPC: Shipping Weight: 0.70 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 4.00 In. Product...- SKU:
- C15-11055
- TS PIK:
- 21505485
- Type:
- Thermal Magnetic, Non-Interchangeable Trip, Miniature
- Interrupting Rating:
- 22000 A at 120/240 VAC, 5000 A at 24/48/62.5/80 VDC
- Voltage Rating:
- 120/240 VAC, 24/48/80 VDC
- Size:
- 2.3 Inch Width x 3.9 Inch Depth x 4.8 Inch Height
- Catalog:
- Eaton_03771_V4T1_3-V4T1_46_CAT.pdf
- Terminal Type:
- Steel Box Lug Standard Load
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Country of Origin:
- Dominican Republic
- Approval:
- UL 489, CSA
- Wire Size:
- 14 to 4 AWG Copper/Aluminum (Standard Load)
- Short Description:
- 45A 2P 22kA B BKR
- Mounting:
- Bolt-On
MSRP $982.63Surplus $197.50 -
Siemens BF240A Miniature Circuit Breakers (MCBs) EA
MSRP $816.78Surplus $389.20SKU: C15-10354 Brand: Siemens MPN: BF240A UPC: 88762121543 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10354
- TS PIK:
- 127112409
- Short Description:
- 120/240 VAC, 40 A, 10 kA Interrupt, 5 mA Trip Level, 2-Pole, Circuit Protector, Low Vage, Type BLFB, Molded Case Ground Fault Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Terminal Type:
- Load Lug
- Mounting:
- Bolt-On
- Number of Poles:
- 2
- Size:
- 2 Inch Width
- Catalog:
- SiemensAG_23946_10_17_CAT.pdf
- Interrupting Rating:
- 10 kA
- Current Rating:
- 40 A
- Installation/Operator:
- SiemensAG_00697_INST.pdf
- Used On:
- Load Center, Panelboard
- Data Sheet:
- SiemensAG_10286_1_DATA.pdf
- Type:
- Molded Case, Low Vage, Thermal Magnetic
- Country of Origin:
- Philippines
MSRP $816.78Surplus $389.20 -
Siemens BQ2B040 Miniature Circuit Breakers (MCBs) 2P 40A 120V
MSRP $262.05Surplus $73.52Siemens BQ2B040 Miniature Circuit Breakers (MCBs) 2P 40A 120V​ ARCA SKU: C15-2270 Brand: Siemens MPN: BQ2B040 UPC: 78364310243 Shipping Weight: 1.75 lbs. Shipping Height: 3.00 In...- SKU:
- C15-2270
- TS PIK:
- 21366179
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Mounting:
- Bolt-On
- Series:
- BQ
- Terminal Type:
- Load Lug
- Short Description:
- 120/240 VAC, 40 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Current Rating:
- 40 A
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Catalog:
- SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $262.05Surplus $73.52 -
Square D QOB240 Miniature Circuit Breakers (MCBs) 2P 40A 120V
MSRP $124.61Surplus $42.25Square D QOB240 Miniature Circuit Breakers (MCBs) 2P 40A 120V​ ARCA SKU: C15-6628 Brand: Square D MPN: QOB240 UPC: 78590141694 Shipping Weight: 1.25 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6628
- TS PIK:
- 123180737
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Data Sheet:
- SchneiderElectric_21328_1_2_DATA.pdf
- Used On:
- NQ Merchandised Panelboard
- Catalog:
- SchneiderElectric-SquareD_32357_9_10_CAT.pdf
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Type:
- Miniature, Standard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Series:
- QOB
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
MSRP $124.61Surplus $42.25 -
Square D QOB240EPD Miniature Circuit Breakers (MCBs)
MSRP $977.25Surplus $330.89Square D QOB240EPD Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6552 Brand: Square D MPN: QOB240EPD UPC: 78590111649 Shipping Weight: 1.05 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6552
- TS PIK:
- 109594863
- Short Description:
- 120/240 VAC 50/60 Hz, 40 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, 30 mA Class B Ground Fault, Miniature Circuit Breaker
- Current Rating:
- 40 A
- Type:
- Thermal Magnetic, Miniature
- Terminal Type:
- Box Lug
- Voltage Rating:
- 120/240 VAC
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 4.12 Inch Height
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 2
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Used On:
- NQ/NQOD Panelboard
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Data Sheet:
- SchneiderElectric-SquareD_15170_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00133_INST.pdf
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
MSRP $977.25Surplus $330.89
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