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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Siemens Q3100H Miniature Circuit Breakers (MCBs) EA
MSRP $700.00Surplus $63.81SKU: C15-10560 Brand: Siemens MPN: Q3100H UPC: 78364317082 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10560
- TS PIK:
- 21366919
- Short Description:
- 240 VAC, 100 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
- Voltage Rating:
- 240 V
- Mounting:
- Plug-On
- Type:
- Thermal Magnetic
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Interrupting Rating:
- 22 kA
- Data Sheet:
- SiemensAG_07053_1_DATA.pdf
- Current Rating:
- 100 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Number of Poles:
- 3
- Used On:
- Load Centre Main, Feeder
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $700.00Surplus $63.81 -
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Siemens Q3100HH Molded Case Breakers (MCCBs)
MSRP $682.00Surplus $184.14SKU: C15-19053 Brand: Siemens MPN: Q3100HH UPC: 78364314910 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19053
- Short Description:
- 240 VAC, 100 A, 65 kA, 3-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, HQP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Size:
- 3 Inch W x 3 Inch D x 3-1/8 Inch H
- Current Rating:
- 100 A
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Country of Origin:
- MEX
- Type:
- Thermal and Fixed Magnetic, Common Trip
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Number of Poles:
- 3
- Data Sheet:
- SiemensAG_07054_1_DATA.pdf
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Approval:
- UL 489, CSA C22.2
- Mounting:
- Plug-On
- Interrupting Rating:
- 65 kA
- Used On:
- Loadcenter
- Installation/Operator:
- SiemensAG_00215_INST.pdf
MSRP $682.00Surplus $184.14 -
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Square D QO2000 Molded Case Breakers (MCCBs)
MSRP $365.73Surplus $98.75SKU: C15-17756 Brand: Square D MPN: QO2000 UPC: 78590112059 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17756
- Short Description:
- 240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Molded Case Switch
- Type:
- Common Trip, Miniature
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Series:
- QO
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Data Sheet:
- SchneiderElectric-SquareD_53460_1_2_DATA.pdf
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Mounting:
- Plug-On
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Current Rating:
- 100 A
- Approval:
- UL, CSA
MSRP $365.73Surplus $98.75 -
Square D QO2100 Miniature Circuit Breakers (MCBs) 2P 100A 120V
MSRP $189.00Surplus $60.20Square D QO2100 Miniature Circuit Breakers (MCBs) 2P 100A 120V​ ARCA SKU: C15-6636 Brand: Square D MPN: QO2100 UPC: 78590150130 Shipping Weight: 0.70 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6636
- TS PIK:
- 124024916
- 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:
- 1.5 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Data Sheet:
- SchneiderElectric-SquareD_53469_1_2_DATA.pdf
- Number of Poles:
- 2
- Type:
- Common Trip, Miniature, Standard
- Current Rating:
- 100 A
- Terminal Type:
- Box Lug
- Mounting:
- Plug-On
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Series:
- QO
- Interrupting Rating:
- 10 kA
- Country of Origin:
- United States
- Approval:
- UL, CSA
MSRP $189.00Surplus $60.20 -
Square D QO21001021 Miniature Circuit Breakers (MCBs)
MSRP $346.65Surplus $500.00SKU: C15-10880 Brand: Square D MPN: QO21001021 UPC: 78590103053 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10880
- TS PIK:
- 111080599
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 3-Panel Space, Box Lug Terminal, AC Shunt Trip, Standard, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Type:
- Common Trip, Thermal Magnetic
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Approval:
- UL, CSA
- Current Rating:
- 100 A
- Wire Size:
- 4 to 2/0 AWG (Aluminum/Copper)
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Terminal Type:
- Box Lug
- Mounting:
- Plug-On
- CAD Drawings:
- SchneiderElectric-SquareD_17845_1_CAD.pdf
- Data Sheet:
- SchneiderElectric-SquareD_14923_1_2_DATA.pdf
- Number of Poles:
- 2
- Catalog:
- SchneiderElectric-SquareD_03264_1_3_1_9_1_39_1_47_CAT.pdf
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Country of Origin:
- Mexico
MSRP $346.65Surplus $500.00 -
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Square D QO2100H Molded Case Breakers (MCCBs)
MSRP $888.00Surplus $239.76SKU: C15-17759 Brand: Square D MPN: QO2100H UPC: 78590109628 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17759
- Terminal Type:
- Box Lug
- Mounting:
- Plug-On
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Type:
- Common Trip, Miniature, Standard
- Data Sheet:
- SchneiderElectric-SquareD_53472_1_2_DATA.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Current Rating:
- 100 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Series:
- QO
- Approval:
- UL, CSA
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Short Description:
- 240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
MSRP $888.00Surplus $239.76 -
Square D QO2100VH Miniature Circuit Breakers (MCBs) QO 2P 100A 120V 50/60Hz 1Ph
MSRP $315.00Surplus $184.80Square D QO2100VH Miniature Circuit Breakers (MCBs) QO 2P 100A 120V 50/60Hz 1Ph​ ARCA SKU: C15-2172 Brand: Square D MPN: QO2100VH UPC: 785901054924 Shipping Weight: 37.71 Shipping...- SKU:
- C15-2172
- Series:
- QO
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- 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:
- 22 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 22 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53517_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01267_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Current Rating:
- 100 A
- Country of Origin:
- Mexico
MSRP $315.00Surplus $184.80 -
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Square D QO31001021 Molded Case Breakers (MCCBs)
MSRP $1,038.00Surplus $756.00SKU: C15-10901 Brand: Square D MPN: QO31001021 UPC: 78590103056 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10901
- TS PIK:
- 111080602
- Type:
- Common Trip, Thermal Magnetic
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 3
- Size:
- 2.25 Inch W x 2.91 Inch D x 3 Inch H
- Data Sheet:
- SchneiderElectric-SquareD_15014_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 3-Pole, 4 to 2/0 AWG Aluminum/Copper, Plug-On Mount, Box Lug Terminal, Standard, AC Shunt Trip, Miniature Circuit Breaker
- Wire Size:
- 4 to 2/0 AWG (Aluminum/Copper)
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Catalog:
- SchneiderElectric-SquareD_03264_1_3_1_9_CAT.pdf
- Current Rating:
- 100 A
- Approval:
- UL, CSA
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Terminal Type:
- Box Lug
- CAD Drawings:
- SchneiderElectric-SquareD_17845_1_CAD.pdf
- Mounting:
- Plug-On
MSRP $1,038.00Surplus $756.00 -
Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph
MSRP $530.00Surplus $336.00Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph​ ARCA SKU: C15-2181 Brand: Square D MPN: QO3100VH UPC: 785901060192 Shipping Weight: 39.10 Shipping...- SKU:
- C15-2181
- Series:
- QO
- Type:
- Bi-Metallic
- Type:
- Thermal
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Enclosure:
- IP20
- Terminal Type:
- Box Lug
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 22 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- Eaton_41013_1-7_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Number of Poles:
- 3
- Current Rating:
- 100 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Country of Origin:
- Mexico
MSRP $530.00Surplus $336.00 -
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Square D QOH2100 Molded Case Breakers (MCCBs)
MSRP $1,259.00Surplus $339.93SKU: C15-17904 Brand: Square D MPN: QOH2100 UPC: 78590105487 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17904
- Number of Poles:
- 2
- Series:
- QO
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 42 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Approval:
- UL, CSA
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Box Lug
- Data Sheet:
- SchneiderElectric-SquareD_53680_1_2_DATA.pdf
- Mounting:
- Plug-On
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Type:
- Common Trip, Miniature, Standard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Current Rating:
- 100 A
- 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 3.5 Inch Height
- Interrupting Rating:
- 42 kA
MSRP $1,259.00Surplus $339.93
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