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 HOM150 Miniature Circuit Breakers (MCBs) HOM 1P 50A 120V 50/60Hz 1Ph EA
MSRP $22.41Surplus $11.44Square D HOM150 Miniature Circuit Breakers (MCBs) HOM 1P 50A 120V 50/60Hz 1Ph EA​ ARCA SKU: C15-4918 Brand: Square D MPN: HOM150 UPC: 785901065258 Shipping Weight: 0.35 lbs. Shipping...- SKU:
- C15-4918
- Type:
- Miniature
- Type:
- Thermal Magnetic
- Type:
- Branch
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1 Inch W x 2.98 Inch D x 3.13 Inch H
- Volts:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Amps:
- 32 A
- Used On:
- Homeline Loadcenter
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Screw ClA
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 1-Pole, 8 to 2 AWG Aluminum/Copper, Plug-In Mount, Box Lug Terminal
- Catalog:
- SchneiderElectric_00257_1_19_1_39_7_22_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13428_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Current Rating:
- 50 A
- Number of Poles:
- 1
MSRP $22.41Surplus $11.44 -
Square D QO150 Miniature Circuit Breakers (MCBs) 50A 120V
MSRP $29.10Surplus $11.77Square D QO150 Miniature Circuit Breakers (MCBs) 50A 120V​ ARCA SKU: C15-4923 Brand: Square D MPN: QO150 UPC: 78590140022 Shipping Weight: 0.30 lbs. Shipping Height: 3.00 In...- SKU:
- C15-4923
- TS PIK:
- 21371522
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Number of Poles:
- 1
- Mounting:
- Plug-On
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 5/10 kA
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01259_INST.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Type:
- Common Trip, Miniature, Standard
- Data Sheet:
- SchneiderElectric-SquareD_53432_1_2_DATA.pdf
- Terminal Type:
- Box Lug
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 5/10 kA Interrupt, 1-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Country of Origin:
- Ireland
- Approval:
- UL, CSA
MSRP $29.10Surplus $11.77 -
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Square D QOB150 Everything Else
MSRP $32.24Surplus $25.94Square D QOB150 Everything Else​ ARCA SKU: C15-6389 Brand: Square D MPN: QOB150 UPC: 78590141680 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0...- SKU:
- C15-6389
- TS PIK:
- 111088422
- Series:
- QOB
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_21277_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Used On:
- NQ Panelboard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA, 1-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Type:
- Miniature, Standard
- Number of Poles:
- 1
- Mounting:
- Bolt-On
- Country of Origin:
- United States
- Approval:
- UL, CSA
- Installation:
- Bolt-On
MSRP $32.24Surplus $25.94 -
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Square D QOB150VH Molded Case Breakers (MCCBs)
MSRP $82.00Surplus $22.14SKU: C15-17844 Brand: Square D MPN: QOB150VH UPC: 78590173190 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17844
- Number of Poles:
- 1
- Current Rating:
- 50 A
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Data Sheet:
- SchneiderElectric_21279_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Series:
- QOB-VH
- Type:
- Miniature, Standard
- Approval:
- UL, CSA
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 22 kA, 1-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Used On:
- NQ Panelboard
- Installation:
- Bolt-On
MSRP $82.00Surplus $22.14 -
Square D QOU150 Miniature Circuit Breakers (MCBs)
MSRP $40.20Surplus $24.21Square D QOU150 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6564 Brand: Square D MPN: QOU150 UPC: 78590141862 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-6564
- TS PIK:
- 109594956
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 1
- Voltage Rating:
- 120/240 VAC
- Series:
- QOU
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Current Rating:
- 50 A
- Mounting:
- DIN Rail
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Used On:
- OEM
- Data Sheet:
- SchneiderElectric_21503_1_2_DATA.pdf
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $40.20Surplus $24.21 -
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THQL1150 Miniature Circuit Breakers (MCBs) THQL 1P 50A 240V
MSRP $53.82Surplus $11.48THQL1150 Miniature Circuit Breakers (MCBs) THQL 1P 50A 240V​ ARCA SKU: C15-2875 Brand: MPN: THQL1150 UPC: 783164012897 Shipping Weight: 0.30 Shipping Height: 1.00 In. Shipping...- SKU:
- C15-2875
- Approval:
- UL
- Amps:
- 50 A
- Frame:
- Q-Line
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Maximum AC Voltage:
- 240 V
- Poles:
- 1
- Terminal Type:
- Plug-On
- Type:
- Thermal Magnetic
- Type:
- Compact
- Volts:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 1-Pole, 8 to 3 AWG Copper/Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Compact, Fixed Thermal Magnetic, Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Maximum AC Voltage Rating:
- 240 V
- Current Rating:
- 50 A
- Frame Type:
- Q-Line
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_30_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00499_1_CAD.pdf
- Number of Poles:
- 1
MSRP $53.82Surplus $11.48 -
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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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