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 BAB2050 Miniature Circuit Breakers (MCBs) 2P 50A 240V EA
MSRP $151.20Surplus $47.00Eaton BAB2050 Miniature Circuit Breakers (MCBs) 2P 50A 240V EA​ ARCA SKU: C15-1059 Brand: Eaton MPN: BAB2050 UPC: 78667930250 Shipping Weight: 0.60 lbs. Shipping Height: 2.00 In...- SKU:
- C15-1059
- Series:
- BAB
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10 kA
- Interrupting Rating:
- 5 kA at 24 to 48/62.5/80 Volt DC
- Terminal Type:
- Extended Tang Line
- Terminal Type:
- Box Lug Load
- Wire Size:
- 14 to 4 AWG Copper/Aluminum (Load)
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
- TS PIK:
- 21508690
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Country of Origin:
- Dominican Republic
MSRP $151.20Surplus $47.00 -
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Eaton QBGFT2050 Miniature Circuit Breakers (MCBs) QB 2P 50A 240V 50/60Hz 1Ph
MSRP $840.00Surplus $445.20Eaton QBGFT2050 Miniature Circuit Breakers (MCBs) QB 2P 50A 240V 50/60Hz 1Ph​ ARCA SKU: C15-2892 Brand: Eaton MPN: QBGFT2050 UPC: 786676026697 Shipping Weight: 0.75 Shipping Height: 4.00...- SKU:
- C15-2892
- Approval:
- UL 489
- Amps:
- 50 A
- Interrupting Rating:
- 10000 A at 120/240 VAC
- Mounting:
- Bolt-On
- Poles:
- 2
- Size:
- 3.5 Inch Width x 6.5 Inch Depth x 2 Inch Height
- Terminal Type:
- Steel Box Lug Standard Load
- Trip Sensitivity:
- 5 MilliA
- Type:
- Common Trip
- Type:
- Miniature
- Volts:
- 120/240 VAC
- Gauge:
- 8 to 6 AWG Copper
- Gauge:
- 6 to 4 AWG Aluminum
- Specification/Technical:
- Eaton_33244_1_SPEC.pdf
- Short Description:
- EATON QB GFCI CIRCUIT BREAKER,GROUND FAULT CIRCUIT BREAKER,50A,10 kAIC,TWO-POLE,
- Current Rating:
- 50 A
- Catalog:
- Eaton_03771_V4T1_3-V4T1_46_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Wire Size:
- 8 to 6 AWG Copper, 6 to 4 AWG Aluminum
MSRP $840.00Surplus $445.20 -
GENERAL ELECTRIC THHQB32050 Miniature Circuit Breakers (MCBs) EA
MSRP $602.88Surplus $172.90SKU: C15-5900 Brand: GENERAL ELECTRIC MPN: THHQB32050 UPC: 78316411862 Shipping Weight: 1.15 lbs. Shipping Height: 3.35 In. Shipping Length: 3.50 In. Shipping...- SKU:
- C15-5900
- Type:
- Thermal Magnetic, Compact
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01786_1_CAD.pdf
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00542_6_4_6_5_6_8_6_38_CAT.pdf
- Current Rating:
- 50 A
- Number of Poles:
- 3
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00025_INST.pdf
- Short Description:
- 120/240 VAC, 50 A, 22 kA Interrupt, 3-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
- Terminal Type:
- Bolt-On
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Bolt-On
- Maximum AC Voltage Rating:
- 240 V
- Frame Type:
- Q-Line
- Approval:
- UL
MSRP $602.88Surplus $172.90 -
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Cutler-Hammer BAB2050 Miniature Circuit Breakers (MCBs) NULL EA
MSRP $227.00Surplus $66.50Cutler-Hammer BAB2050 Miniature Circuit Breakers (MCBs) NULL EA​ ARCA SKU: C15-8974 Brand: Cutler-Hammer MPN: BAB2050 UPC: 78667930250 Shipping Weight: 0.60 lbs. Shipping Height: 4...- SKU:
- C15-8974
- TS PIK:
- 21508690
- Mounting:
- Bolt-On
- Number of Poles:
- 2
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- Type:
- Thermal Magnetic
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
- Series:
- BAB
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 24 to 48/62.5/80 VDC
- Catalog:
- Eaton_03771_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
- Wire Size:
- 14 to 4 AWG Copper/Aluminum (Load)
- Terminal Type:
- Extended Tang Line, Box Lug Load
MSRP $227.00Surplus $66.50 -
Eaton QBGFEP2050 Miniature Circuit Breakers (MCBs) EA
MSRP $1,417.00Surplus $420.28SKU: C15-9661 Brand: Eaton MPN: QBGFEP2050 UPC: 78667914520 Shipping Weight: 0.85 lbs. Shipping Height: 2.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In...- SKU:
- C15-9661
- TS PIK:
- 106998263
- Size:
- 3 Inch Width x 5.8 Inch Depth x 4.4 Inch Height
- Catalog:
- Eaton_03771_V4T1_3-V4T1_46_CAT.pdf
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10000 A at 120/240 VAC
- Terminal Type:
- Steel Box Lug Standard Load
- Type:
- Thermal Magnetic, Non-Interchangeable Trip, Equipment Breaker, Miniature
- Voltage Rating:
- 120/240 VAC
- Wire Size:
- 14 to 8 AWG Copper (Standard Load)
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Trip Sensitivity:
- 30 MilliA
- Approval:
- UL 489/943
- Short Description:
- EATON QB GFCI CIRCUIT BREAKER,GROUND FAULT CIRCUIT BREAKER,BOLT-ON MOUNTING,50A,10 kAIC,TWO-POLE,120/240V,NON-INTERCHANGEABLE,30 MA TRIP SENSITIVITY,QBGFEP
- Country of Origin:
- United States
MSRP $1,417.00Surplus $420.28 -
Eaton BAB2050S Miniature Circuit Breakers (MCBs) BA 2P 50A 240V 50/60Hz 1Ph
MSRP $460.00Surplus $180.60SKU: C15-1061 Brand: Eaton MPN: BAB2050S UPC: 786679313053 Shipping Weight: 0.90 lbs. Shipping Height: 5.00 In. Shipping Length: 6.00 In. Shipping Width: 5.00 In...- SKU:
- C15-1061
- 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, 50 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
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Dominican Republic
MSRP $460.00Surplus $180.60 -
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Crouse-Hinds BAB2050 Miniature Circuit Breakers (MCBs) 2P 50A
MSRP $151.20Surplus $66.50Crouse-Hinds BAB2050 Miniature Circuit Breakers (MCBs) 2P 50A​ ARCA SKU: C15-5636 Brand: Crouse-Hinds MPN: BAB2050 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- C15-5636
- TS PIK:
- 21508690
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 24 to 48/62.5/80 VDC
- Wire Size:
- 14 to 4 AWG Copper/Aluminum (Load)
- Series:
- BAB
- Mounting:
- Bolt-On
- Catalog:
- Eaton_03771_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
- Type:
- Thermal Magnetic
- Voltage Rating:
- 120/240 VAC
- Terminal Type:
- Extended Tang Line, Box Lug Load
MSRP $151.20Surplus $66.50 -
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Crouse-Hinds QBHW2050 Miniature Circuit Breakers (MCBs)
MSRP $290.26Surplus $116.76Crouse-Hinds QBHW2050 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8059 Brand: Crouse-Hinds MPN: QBHW2050 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-8059
- TS PIK:
- 21510597
- Short Description:
- 120/240 VAC, 50 A, 22 kA, 2-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Series:
- QBHW
- Type:
- Thermal Magnetic
- Mounting:
- Bolt-On
- Wire Size:
- 14 to 4 AWG (Copper/Aluminum)
- Size:
- 3.8 Inch Length x 2.1 Inch Width x 4.8 Inch Height
- Catalog:
- Eaton_03771_V4T1_12_CAT.pdf
- Current Rating:
- 50 A
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Terminal Type:
- Extended Tang Line, Box Lug Load
- Number of Poles:
- 2
MSRP $290.26Surplus $116.76 -
Eaton BAB1050 Miniature Circuit Breakers (MCBs) 1P 50A 120V EA
MSRP $68.42Surplus $13.85Eaton BAB1050 Miniature Circuit Breakers (MCBs) 1P 50A 120V EA​ ARCA SKU: C15-1029 Brand: Eaton MPN: BAB1050 UPC: 78667930150 Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In...- SKU:
- C15-1029
- Series:
- BAB
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 1
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10000 A at 120/240 VAC
- Interrupting Rating:
- 5000 A at 24 to 48 VDC
- Interrupting Rating:
- 3800 A at 62.5 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, 50 A, 10 kA, 1-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Current Rating:
- 50 A
- Country of Origin:
- Dominican Republic
MSRP $68.42Surplus $13.85 -
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Eaton CHB150 Miniature Circuit Breakers (MCBs)
MSRP $125.67Surplus $20.36SKU: C15-15752 Brand: Eaton MPN: CHB150 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-15752
- Type:
- Molded Case
- Used On:
- CH Series Load Centre, PB Panel board
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Wire Size:
- 8 to 4 AWG
- Number of Poles:
- 1
- Short Description:
- 120/240 VAC, 50 A, 1-Pole, 10 kA, Bolt-On Mount, Molded Case Circuit Breaker
- Series:
- CHB
- Current Rating:
- 50 A
- Approval:
- UL 489
- Catalog:
- Eaton_03653_V12T3_9_CAT.pdf
MSRP $125.67Surplus $20.36 -
Eaton QBHW1050 Miniature Circuit Breakers (MCBs) 1P 50A 240V EA
MSRP $122.00Surplus $40.21Eaton QBHW1050 Miniature Circuit Breakers (MCBs) 1P 50A 240V EA​ ARCA SKU: C15-3443 Brand: Eaton MPN: QBHW1050 UPC: 786679392300 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In...- SKU:
- C15-3443
- Approval:
- UL 489
- Approval:
- CSA
- Amps:
- 50 A
- Interrupting Rating:
- 22000 A at 120/240 VAC
- Interrupting Rating:
- 5000 Amp at 24 to 48 Volt DC
- Mounting:
- Bolt-On
- Poles:
- 1
- Size:
- 1.2 Inch Width x 3.6 Inch Depth x 3.2 Inch Height
- Terminal Type:
- Steel Box Lug Standard Load
- Type:
- Thermal Magnetic
- Type:
- Non-Interchangeable Trip
- Type:
- Miniature
- Volts:
- 120/240 VAC
- Volts:
- 24/48/62.5 VDC
- Gauge:
- 14 to 4 AWG Copper/Aluminum (Standard Load)
- Short Description:
- 120/240 VAC, 50 A, 22 kA Interrupt, 1-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Type QBHW, Non-Interchangeable Industrial Circuit Breaker
- TS PIK:
- 21510587
- Current Rating:
- 50 A
- Wire Size:
- 14 to 4 AWG Copper/Aluminum (Standard Load)
- Catalog:
- EatonCorp_00004_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Country of Origin:
- Dominican Republic
MSRP $122.00Surplus $40.21 -
Eaton QBHW2050 Miniature Circuit Breakers (MCBs) 2P 50A 240V EA
MSRP $290.26Surplus $37.76Eaton QBHW2050 Miniature Circuit Breakers (MCBs) 2P 50A 240V EA​ ARCA SKU: C15-1652 Brand: Eaton MPN: QBHW2050 UPC: 786679392805 Shipping Weight: 0.70 lbs. Shipping Height: 2.00 In...- SKU:
- C15-1652
- Series:
- QBHW
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Size:
- 3.8 Inch Length x 2.1 Inch Width x 4.8 Inch Height
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Terminal Type:
- Extended Tang Line
- Terminal Type:
- Box Lug Load
- Wire Size:
- 14 to 4 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 50 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
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Country of Origin:
- Dominican Republic
MSRP $290.26Surplus $37.76 -
Siemens BE250 Miniature Circuit Breakers (MCBs)
MSRP $300.00Surplus $199.50SKU: C15-10346 Brand: Siemens MPN: BE250 UPC: 78364327414 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10346
- TS PIK:
- 115554696
- Catalog:
- SiemensAG_01796_7_30_CAT.pdf
- Approval:
- UL 489
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Bolt-On
- Country of Origin:
- PHL
- Size:
- 2 Inch Width
- Installation/Operator:
- SiemensAG_00695_INST.pdf
- Trip Sensitivity:
- 30 MilliA
- Current Rating:
- 50 A
- Data Sheet:
- SiemensAG_10270_1_2_DATA.pdf
- Interrupting Rating:
- 10 kA
- Type:
- Molded Case, Low Vage, Circuit Protector, Thermal Magnetic
- Short Description:
- BRKR BLE GFCI 30MA 2P 240V 50A 10kA
- Number of Poles:
- 2
- Used On:
- Panelboard
MSRP $300.00Surplus $199.50 -
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Siemens BF250 Miniature Circuit Breakers (MCBs) 2P
MSRP $545.00Surplus $151.03Siemens BF250 Miniature Circuit Breakers (MCBs) 2P​ ARCA SKU: C15-6249 Brand: Siemens MPN: BF250 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6249
- Mounting:
- Bolt-On
- Used On:
- Loadcenter, P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_01608_1_DATA.pdf
- Interrupting Rating:
- 10 kA
- Size:
- 2 Inch W
- Number of Poles:
- 2
- Current Rating:
- 50 A
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 2-Pole, Thermal Magnetic, Circuit Interrupter, Ground Fault Circuit Breaker
- Terminal Type:
- Load Lug
- Voltage Rating:
- 120/240 VAC
- Type:
- Circuit Interrupter
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
MSRP $545.00Surplus $151.03 -
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Westinghouse BAB1050 Miniature Circuit Breakers (MCBs)
MSRP $109.00Surplus $30.59Westinghouse BAB1050 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-11420 Brand: Westinghouse MPN: BAB1050 UPC: Shipping Weight: 0.30 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-11420
- Type:
- Thermal Magnetic
- Series:
- BAB
- Mounting:
- Bolt-On
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 1-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Wire Size:
- 14 to 4 AWG Aluminum/Copper (Load)
- Current Rating:
- 50 A
- Interrupting Rating:
- 10000 A at 120/240 VAC, 5000 A at 24 to 48 VDC, 3800 A at 62.5 VDC
- Terminal Type:
- Extended Tang Line Terminal, Box Lug Load Terminal
- Catalog:
- Eaton_03771_V4T1_11_V4T1_12_V4T1_46_CAT.pdf
MSRP $109.00Surplus $30.59
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