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 Q270 Miniature Circuit Breakers (MCBs) QP 2P 70A 240V
MSRP $320.00Surplus $18.30Siemens Q270 Miniature Circuit Breakers (MCBs) QP 2P 70A 240V​ ARCA SKU: C15-3778 Brand: Siemens MPN: Q270 UPC: Shipping Weight: 0.60 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-3778
- Approval:
- UL 489
- Amps:
- 70 A
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Poles:
- 2
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Terminal Type:
- Low Vage
- Type:
- Common Trip
- Type:
- Thermal Magnetic
- Type:
- Miniature
- Used On:
- Load Center
- Volts:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 70 A, 10 kA Interrupt, 2-Pole, Plug-In Mount, QP-Frame, Low Voltage, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Specification/Technical:
- SiemensAG_57268_1_2_SPEC.pdf
- Number of Poles:
- 2
- Catalog:
- SiemensAG_23945_7_20_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Installation/Operator:
- SiemensAG_00053_INST.pdf
- Current Rating:
- 70 A
- Country of Origin:
- Mexico
MSRP $320.00Surplus $18.30 -
Siemens Q27000S01 Miniature Circuit Breakers (MCBs)
MSRP $493.00Surplus $186.84SKU: C15-10555 Brand: Siemens MPN: Q27000S01 UPC: 78364323758 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10555
- TS PIK:
- 115559534
- Type:
- Thermal and Fixed Magnetic, Common Trip
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Current Rating:
- 70 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Terminal Type:
- Load Lug
- Short Description:
- 120/240 VAC, 70 A, 10 kA, 2-Pole, 8 to 2/0 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
- Mounting:
- Plug-On
- Size:
- 2 Inch W x 3 Inch D x 3-1/8 Inch H
- Used On:
- Loadcenter
- Interrupting Rating:
- 10 kA
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07043_1_DATA.pdf
- Number of Poles:
- 2
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $493.00Surplus $186.84 -
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Siemens Q370 Miniature Circuit Breakers (MCBs) 3P 70A
Surplus $93.10Siemens Q370 Miniature Circuit Breakers (MCBs) 3P 70A​ ARCA SKU: C15-8489 Brand: Siemens MPN: Q370 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-8489
- TS PIK:
- 21332137
- Short Description:
- 240 VAC, 70 A, 10 kA Interrupt, 3-Pole, Plug-On Mount, QP-Frame, Low Vage, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Size:
- 4 Inch Width x 13 Inch Depth x 3.4 Inch Height
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC
- Installation/Operator:
- SiemensAG_00053_INST.pdf
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_23945_7_20_CAT.pdf
- Mounting:
- Plug-On
- Type:
- Low Vage, Common Trip, Thermal Magnetic, Miniature
- Current Rating:
- 70 A
- Used On:
- Load Center
- Country of Origin:
- Mexico
- Approval:
- UL 489
Surplus $93.10 -
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Siemens Q370H Molded Case Breakers (MCCBs)
MSRP $132.30Surplus $35.72SKU: C15-19055 Brand: Siemens MPN: Q370H UPC: 78364315647 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19055
- Country of Origin:
- MEX
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Size:
- 3 Inch W x 3 Inch D x 3-1/8 Inch H
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Short Description:
- 240 VAC, 70 A, 22 kA, 3-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QPH Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Data Sheet:
- SiemensAG_07073_1_DATA.pdf
- Number of Poles:
- 3
- Mounting:
- Plug-On
- Type:
- Thermal and Fixed Magnetic, Common Trip
- Interrupting Rating:
- 22 kA
- Current Rating:
- 70 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Approval:
- UL 489, CSA C22.2
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Used On:
- Loadcenter
MSRP $132.30Surplus $35.72 -
Square D QO170 Miniature Circuit Breakers (MCBs)
MSRP $67.00Surplus $22.59Square D QO170 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6531 Brand: Square D MPN: QO170 UPC: 78590147747 Shipping Weight: 0.35 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6531
- TS PIK:
- 109595036
- Number of Poles:
- 1
- Series:
- QO
- Type:
- Miniature, Standard
- Mounting:
- Plug-On
- Current Rating:
- 70 A
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Voltage Rating:
- 120/240 VAC
- Installation/Operator:
- SchneiderElectric-SquareD_01259_INST.pdf
- Interrupting Rating:
- 5/10 kA
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 70 A, 5/10 kA Interrupt, 1-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_53445_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Terminal Type:
- Box Lug
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $67.00Surplus $22.59 -
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Square D QO270 Miniature Circuit Breakers (MCBs) QO 2P 70A 240V 50/60Hz 1Ph EA
MSRP $144.72Surplus $51.00Square D QO270 Miniature Circuit Breakers (MCBs) QO 2P 70A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-3708 Brand: Square D MPN: QO270 UPC: 78590140058 Shipping Weight: 0.60 lbs. Shipping...- SKU:
- C15-3708
- Series:
- QO
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 5/10 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 70 A, 5/10 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53541_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 597390
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 70 A
- Country of Origin:
- Mexico
MSRP $144.72Surplus $51.00 -
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Square D QO2701021 Molded Case Breakers (MCCBs)
MSRP $443.00Surplus $119.61SKU: C15-17790 Brand: Square D MPN: QO2701021 UPC: 78590149404 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17790
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 70 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 3-Panel Space, Box Lug Terminal, AC Shunt Trip, Miniature Circuit Breaker
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SchneiderElectric-SquareD_14994_1_2_DATA.pdf
- Type:
- Common Trip, Thermal Magnetic
- Catalog:
- SchneiderElectric-SquareD_03264_1_3_1_9_1_39_CAT.pdf
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Approval:
- UL, CSA
- Mounting:
- Plug-On
- Current Rating:
- 70 A
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- CAD Drawings:
- SchneiderElectric-SquareD_03059_1_CAD.pdf
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
MSRP $443.00Surplus $119.61 -
Square D QO270VH Miniature Circuit Breakers (MCBs)
MSRP $224.00Surplus $141.75SKU: C15-10898 Brand: Square D MPN: QO270VH UPC: 78590105498 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10898
- TS PIK:
- 111081463
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Series:
- QO
- Data Sheet:
- SchneiderElectric-SquareD_53542_1_2_DATA.pdf
- Mounting:
- Plug-On
- Type:
- Common Trip, Miniature, Standard
- Interrupting Rating:
- 22 kA
- Current Rating:
- 70 A
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Terminal Type:
- Box Lug
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC 50/60 Hz, 70 A, 22 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $224.00Surplus $141.75 -
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Square D QO3701021 Molded Case Breakers (MCCBs)
MSRP $698.00Surplus $188.46SKU: C15-18860 Brand: Square D MPN: QO3701021 UPC: 78590103057 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18860
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Size:
- 2.25 Inch W x 2.91 Inch D x 3 Inch H
- Catalog:
- SchneiderElectric-SquareD_03264_1_3_1_9_CAT.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 70 A, 10 kA Interrupt, 3-Pole, Plug-On Mount, 4-Panel Space, Box Lug Terminal, AC Shunt Trip, Standard, Miniature Circuit Breaker
- Number of Poles:
- 3
- Type:
- Common Trip, Thermal Magnetic
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- CAD Drawings:
- SchneiderElectric-SquareD_03059_1_CAD.pdf
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Approval:
- UL, CSA
- Data Sheet:
- SchneiderElectric-SquareD_15069_1_2_DATA.pdf
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Mounting:
- Plug-On
- Current Rating:
- 70 A
MSRP $698.00Surplus $188.46 -
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Square D QO370VH Molded Case Breakers (MCCBs)
MSRP $896.00Surplus $241.92SKU: C15-17806 Brand: Square D MPN: QO370VH UPC: 78590106023 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17806
- Current Rating:
- 70 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Terminal Type:
- Box Lug
- Type:
- Common Trip, Miniature, Standard
- Number of Poles:
- 3
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Series:
- QO
- Interrupting Rating:
- 22 kA
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 70 A, 22 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Data Sheet:
- SchneiderElectric-SquareD_53611_1_2_DATA.pdf
- Approval:
- UL, CSA
MSRP $896.00Surplus $241.92 -
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Square D QOH270 Molded Case Breakers (MCCBs)
MSRP $993.00Surplus $268.11SKU: C15-17910 Brand: Square D MPN: QOH270 UPC: 78590105489 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17910
- Short Description:
- 120/240 VAC 50/60 Hz, 70 A, 42 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Interrupting Rating:
- 42 kA
- Current Rating:
- 70 A
- Number of Poles:
- 2
- Terminal Type:
- Box Lug
- Type:
- Common Trip, Miniature, Standard
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Mounting:
- Plug-On
- Data Sheet:
- SchneiderElectric-SquareD_53686_1_2_DATA.pdf
MSRP $993.00Surplus $268.11
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