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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Siemens B125HH Miniature Circuit Breakers (MCBs)
MSRP $69.07Surplus $11.19SKU: C15-18953 Brand: Siemens MPN: B125HH UPC: 78364308909 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18953
- Type:
- Branch
- Interrupting Rating:
- 65 kA
- Number of Poles:
- 1
- Application:
- Lighting/Distribution
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Country of Origin:
- MEX
- Current Rating:
- 25 A
- Used On:
- P1/P2/P3/P4/P5 Series Panelboard
- Short Description:
- 120 VAC, 25 A, 65 kA, 1-Pole, Bolt-On Mount, Branch, Panelboard Circuit Breaker
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Data Sheet:
- SiemensAG_05168_1_DATA.pdf
- Approval:
- UL 489, CSA C22.2
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Installation:
- Bolt-On
MSRP $69.07Surplus $11.19 -
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Siemens B135H Miniature Circuit Breakers (MCBs)
MSRP $47.88Surplus $31.84SKU: C15-10305 Brand: Siemens MPN: B135H UPC: 78364308907 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10305
- TS PIK:
- 120831405
- Country of Origin:
- MEX
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Type:
- Branch
- Current Rating:
- 35 A
- Number of Poles:
- 1
- Approval:
- UL 489, CSA C22.2
- Application:
- Lighting/Distribution
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Short Description:
- 120 VAC, 35 A, 22 kA, 1-Pole, Bolt-On Mount, Molded Case, Branch, Panelboard Circuit Breaker
- Data Sheet:
- SiemensAG_05173_1_DATA.pdf
- Used On:
- P1/P2/P3/P4/P5 Series Panelboard
- Installation:
- Bolt-On
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Interrupting Rating:
- 22 kA
MSRP $47.88Surplus $31.84 -
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Siemens Q11500S01 Miniature Circuit Breakers (MCBs)
MSRP $300.00Surplus $119.04SKU: C15-10522 Brand: Siemens MPN: Q11500S01 UPC: 78364323794 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10522
- TS PIK:
- 115559473
- Number of Poles:
- 1
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Type:
- Thermal and Fixed Magnetic
- Interrupting Rating:
- 10 kA
- Used On:
- Loadcenter
- Short Description:
- 120/240 VAC, 15 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, 120 VAC Shunt Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Current Rating:
- 15 A
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Mounting:
- Plug-On
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_06962_1_DATA.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $300.00Surplus $119.04 -
Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph
MSRP $123.00Surplus $25.76Siemens Q115H Miniature Circuit Breakers (MCBs) Q 1P 15A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2729 Brand: Siemens MPN: Q115H UPC: 783643156319 Shipping Weight: 0.30 Shipping Height: 1.00 In...- SKU:
- C15-2729
- Type:
- Thermal and Fixed Magnetic
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Volts:
- 120 VAC at 50/60 Hz
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 15 A, 22 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QPH Frame, Thermal Magnetic Trip Unit
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_06965_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Number of Poles:
- 1
- Country of Origin:
- MEX
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Current Rating:
- 15 A
MSRP $123.00Surplus $25.76 -
Siemens Q12000S01 Shunt Trips
MSRP $307.00Surplus $106.40SKU: A13-1401 Brand: Siemens MPN: Q12000S01 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- A13-1401
- TS PIK:
- 21367397
- Terminal Type:
- Load Lug
- Type:
- Thermal and Fixed Magnetic
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Short Description:
- 120/240 VAC, 20 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, 120 VAC Shunt Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Current Rating:
- 20 A
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Number of Poles:
- 1
- Used On:
- Loadcenter
- Data Sheet:
- SiemensAG_06966_1_DATA.pdf
- Mounting:
- Plug-On
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $307.00Surplus $106.40 -
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Siemens Q135 Miniature Circuit Breakers (MCBs)
MSRP $12.50Surplus $8.31SKU: C15-10529 Brand: Siemens MPN: Q135 UPC: 78364315624 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10529
- TS PIK:
- 116079942
- Number of Poles:
- 1
- Type:
- Thermal and Fixed Magnetic
- Short Description:
- 120/240 VAC, 35 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Interrupting Rating:
- 10 kA
- Country of Origin:
- MEX
- Mounting:
- Plug-On
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Current Rating:
- 35 A
- Approval:
- UL 489, CSA C22.2
- Used On:
- Loadcenter
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Data Sheet:
- SiemensAG_06974_1_DATA.pdf
MSRP $12.50Surplus $8.31 -
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Siemens Q145 Molded Case Breakers (MCCBs)
MSRP $7.50Surplus $2.02SKU: C15-17522 Brand: Siemens MPN: Q145 UPC: 78364316715 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17522
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Approval:
- UL 489, CSA C22.2
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Country of Origin:
- MEX
- Number of Poles:
- 1
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 1-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Type:
- Thermal and Fixed Magnetic
- Current Rating:
- 45 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Terminal Type:
- Load Lug
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_06976_1_DATA.pdf
- Used On:
- Loadcenter
MSRP $7.50Surplus $2.02 -
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Square D QO120K Molded Case Breakers (MCCBs)
MSRP $216.00Surplus $58.32SKU: C15-17737 Brand: Square D MPN: QO120K UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-17737
- Terminal Type:
- Pressure Plate
- Catalog:
- SchneiderElectric-SquareD_03264_1_6_CAT.pdf
- CAD Drawings:
- SchneiderElectric-SquareD_03065_1_CAD.pdf
- Approval:
- UL, CSA
- Data Sheet:
- SchneiderElectric-SquareD_14847_1_2_DATA.pdf
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Interrupting Rating:
- 10 kA
- Current Rating:
- 20 A
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Short Description:
- 120/240 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, Plug-On Mount, 1-Panel Space, Pressure Plate Terminal, Key Operated, Miniature Circuit Breaker
- Number of Poles:
- 1
- Mounting:
- Plug-On
- Series:
- QO-K
MSRP $216.00Surplus $58.32
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