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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Square D QOB250 Miniature Circuit Breakers (MCBs) 2P 50A 120V EA
MSRP $91.54Surplus $24.50Square D QOB250 Miniature Circuit Breakers (MCBs) 2P 50A 120V EA​ ARCA SKU: C15-6658 Brand: Square D MPN: QOB250 UPC: 78590141698 Shipping Weight: 0.60 lbs. Shipping Height: 3.11 In...- SKU:
- C15-6658
- TS PIK:
- 111088427
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Series:
- QOB
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21336_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Used On:
- NQ Panelboard
- Mounting:
- Bolt-On
- Country of Origin:
- United States
MSRP $91.54Surplus $24.50 -
Eaton BAB2050 Miniature Circuit Breakers (MCBs) 2P 50A 240V EA
MSRP $151.20Surplus $30.19Eaton 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 $30.19 -
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Eaton QBGFT2050 Miniature Circuit Breakers (MCBs) QB 2P 50A 240V 50/60Hz 1Ph
MSRP $840.00Surplus $422.94Eaton 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 Milliamp
- 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 $422.94 -
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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
MSRP $1,417.00Surplus $420.28 -
Eaton BAB2050S Miniature Circuit Breakers (MCBs) BA 2P 50A 240V 50/60Hz 1Ph
MSRP $460.00Surplus $171.57SKU: 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 $171.57 -
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Eaton CHB250 Miniature Circuit Breakers (MCBs) CHB 2P 50A 240V 50/60Hz 1Ph EA
MSRP $417.00Surplus $180.88Eaton CHB250 Miniature Circuit Breakers (MCBs) CHB 2P 50A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-1518 Brand: Eaton MPN: CHB250 UPC: 782113112503 Shipping Weight: 0.55 Shipping Height: 2.00 In...- SKU:
- C15-1518
- Series:
- CHB
- Type:
- Main
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- PB Series Panel board
- Poles:
- 2
- Mounting:
- Bolt-On
- Short Description:
- 240 VAC, 50 A, 10 kA, 2-Pole, Bolt-On Mount, Molded Case
- Data Sheet:
- SchneiderElectric-SquareD_15300_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00344_INST.pdf
- CAD Drawing:
- SchneiderElectric-SquareD_17868_1_CAD.pdf
- Voltage Rating:
- 240 VAC
- Current Rating:
- 50 A
- Number of Poles:
- 2
MSRP $417.00Surplus $180.88 -
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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 CHB250 Miniature Circuit Breakers (MCBs) 2P 50A
MSRP $260.15Surplus $118.42Crouse-Hinds CHB250 Miniature Circuit Breakers (MCBs) 2P 50A​ ARCA SKU: C15-5692 Brand: Crouse-Hinds MPN: CHB250 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-5692
- TS PIK:
- 111010056
- Series:
- CHB
- Mounting:
- Bolt-On
- Short Description:
- 240 VAC, 50 A, 10 kA, 2-Pole, Bolt-On Mount, Molded Case, Circuit Breaker
- Number of Poles:
- 2
- Voltage Rating:
- 240 VAC
- Current Rating:
- 50 A
- Used On:
- PB Series Panel board
- Type:
- Molded Case
MSRP $260.15Surplus $118.42 -
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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 BAB2050H Miniature Circuit Breakers (MCBs) BA 2P 50A 120/240V 50/60Hz 1Ph EA
MSRP $341.00Surplus $117.20Eaton BAB2050H Miniature Circuit Breakers (MCBs) BA 2P 50A 120/240V 50/60Hz 1Ph EA​ ARCA SKU: C15-1060 Brand: Eaton MPN: BAB2050H UPC: 786679302521 Shipping Weight: 0.65 lbs. Shipping...- SKU:
- C15-1060
- TS PIK:
- 21508691
- Short Description:
- 240 VAC, 50 A, 10 kA, 2-Pole, Extended Tang Line/Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature, Circuit Breaker
- Type:
- Thermal Magnetic
- Series:
- BAB
- Terminal Type:
- Extended Tang Line Terminal, Box Lug Load Terminal
- Voltage Rating:
- 240 VAC
- Mounting:
- Bolt-On
- Number of Poles:
- 2
- Catalog:
- Eaton_03771_V4T1_3_V4T1_11_V4T1_12_CAT.pdf
- 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 48/62.5/80 VDC
- Country of Origin:
- Dominican Republic
MSRP $341.00Surplus $117.20 -
Eaton QBHW2050 Miniature Circuit Breakers (MCBs) 2P 50A 240V EA
MSRP $290.26Surplus $42.62Eaton 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 $42.62 -
Eaton QBHW2050H Miniature Circuit Breakers (MCBs)
MSRP $534.15Surplus $167.38SKU: C15-1650 Brand: Eaton MPN: QBHW2050H UPC: 786679152560 Shipping Weight: 0.70 lbs. Shipping Height: 4.00 In. Shipping Length: 3.00 In. Shipping Width: 4.00 In...- SKU:
- C15-1650
- Series:
- QBHW
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 22000 A at 240 VAC
- 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, 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
- TS PIK:
- 21505487
- Voltage Rating:
- 240 VAC
- Current Rating:
- 50 A
- Number of Poles:
- 2
MSRP $534.15Surplus $167.38 -
GHBGFEP1050 1P 50A
MSRP $1,074.12Surplus $151.82SKU: C15-8919 Brand: MPN: GHBGFEP1050 UPC: Shipping Weight: 1.45 lbs. Shipping Height: 5.00 In. Shipping Length: 8.00 In. Shipping Width: 4.00 In. Product...- SKU:
- C15-8919
- Series:
- C
- Type:
- Circuit Protector
- Short Description:
- 240 to 305 VAC, 277 VAC, 50 A, 14 kA, 30 mA Trip Level, 2-Pole, Pressure Terminal, Bolt-On Mount, Circuit Protector, Ground Fault Circuit Breaker
- Terminal Type:
- Pressure Terminal
- Size:
- 3 Inch W x 2.63 Inch D x 4 Inch H
- Current Rating:
- 50 A
- Wire Size:
- 10 to 1/0 AWG (Aluminum/Copper)
- Used On:
- Panelboard
- Interrupting Rating:
- 14 kA
- Catalog:
- Eaton_27487_V4T2_260_V4T2_267_V4T2_268_CAT.pdf
- Installation/Operator:
- Eaton_00166_INST.pdf
- Number of Poles:
- 2
- Mounting:
- Bolt-On
- Voltage Rating:
- 240 to 305 V, 277 VAC at 50/60 Hz
- Frame Type:
- GHB
- Approval:
- UL 489, UL 1053
- Country of Origin:
- Dominican Republic
MSRP $1,074.12Surplus $151.82 -
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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 -
Siemens BQ2B050 Miniature Circuit Breakers (MCBs)
MSRP $188.50Surplus $34.58Siemens BQ2B050 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6084 Brand: Siemens MPN: BQ2B050 UPC: 78364310244 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6084
- TS PIK:
- 21366180
- Series:
- BQ
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Current Rating:
- 50 A
- Terminal Type:
- Load Lug
- Mounting:
- Bolt-On
- 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
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Number of Poles:
- 2
- Catalog:
- SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Country of Origin:
- Mexico
MSRP $188.50Surplus $34.58
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