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 QO320VH Miniature Circuit Breakers (MCBs)
MSRP $371.00Surplus $236.74Square D QO320VH Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6544 Brand: Square D MPN: QO320VH UPC: 78590137186 Shipping Weight: 0.80 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6544
- TS PIK:
- 123131436
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Type:
- Common Trip, Miniature, Standard
- Terminal Type:
- Pressure Plate
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 20 A, 22 kA Interrupt, 3-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
- Mounting:
- Plug-On
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Series:
- QO
- Interrupting Rating:
- 22 kA
- Data Sheet:
- SchneiderElectric-SquareD_53574_1_2_DATA.pdf
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Current Rating:
- 20 A
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $371.00Surplus $236.74 -
Square D QO390 Miniature Circuit Breakers (MCBs)
MSRP $395.28Surplus $79.80Square D QO390 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6591 Brand: Square D MPN: QO390 UPC: 78590100440 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6591
- TS PIK:
- 109595133
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Mounting:
- Plug-On
- Data Sheet:
- SchneiderElectric-SquareD_53614_1_2_DATA.pdf
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 90 A, 10 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Type:
- Common Trip, Miniature, Standard
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Current Rating:
- 90 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $395.28Surplus $79.80 -
Square D QO380 Miniature Circuit Breakers (MCBs) 3P 80A 240V
MSRP $395.28Surplus $115.71Square D QO380 Miniature Circuit Breakers (MCBs) 3P 80A 240V​ ARCA SKU: C15-6382 Brand: Square D MPN: QO380 UPC: 78590100439 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6382
- TS PIK:
- 124023839
- Series:
- QO
- Interrupting Rating:
- 10 kA
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 80 A, 10 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Type:
- Common Trip, Miniature, Standard
- Current Rating:
- 80 A
- Data Sheet:
- SchneiderElectric-SquareD_53612_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Number of Poles:
- 3
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Terminal Type:
- Box Lug
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Mounting:
- Plug-On
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $395.28Surplus $115.71 -
Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph
MSRP $530.00Surplus $319.20Square 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 $319.20 -
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Square D QO315VH Molded Case Breakers (MCCBs)
MSRP $694.00Surplus $187.38SKU: C15-17797 Brand: Square D MPN: QO315VH UPC: 78590137185 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17797
- Current Rating:
- 15 A
- Short Description:
- 120/240 VAC 50/60 Hz, 15 A, 22 kA Interrupt, 3-Pole, 14 to 8 AWG Copper/Aluminum, Plug-On Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 3
- Interrupting Rating:
- 22 kA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Type:
- Common Trip, Miniature, Standard
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53565_1_2_DATA.pdf
- Mounting:
- Plug-On
- 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 2.99 Inch Height
- Series:
- QO
- Approval:
- UL, CSA
- Terminal Type:
- Pressure Plate
MSRP $694.00Surplus $187.38 -
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Square D QO330VH Molded Case Breakers (MCCBs)
MSRP $1,017.00Surplus $249.20SKU: C15-10904 Brand: Square D MPN: QO330VH UPC: 78590137188 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10904
- TS PIK:
- 111088248
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Current Rating:
- 30 A
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 30 A, 22 kA Interrupt, 3-Pole, 14 to 8 AWG Copper/Aluminum, Plug-On Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
- Type:
- Common Trip, Miniature, Standard
- Terminal Type:
- Pressure Plate
- Interrupting Rating:
- 22 kA
- Series:
- QO
- 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
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53590_1_2_DATA.pdf
- Mounting:
- Plug-On
MSRP $1,017.00Surplus $249.20 -
Square D QO340VH Miniature Circuit Breakers (MCBs)
MSRP $371.00Surplus $222.75SKU: C15-10905 Brand: Square D MPN: QO340VH UPC: 78590106020 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10905
- TS PIK:
- 111081736
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Data Sheet:
- SchneiderElectric-SquareD_53594_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
- Interrupting Rating:
- 22 kA
- Current Rating:
- 40 A
- Mounting:
- Plug-On
- Terminal Type:
- Box Lug
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Series:
- QO
- Type:
- Common Trip, Miniature, Standard
- Short Description:
- 120/240 VAC 50/60 Hz, 40 A, 22 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Number of Poles:
- 3
- Approval:
- UL, CSA
MSRP $371.00Surplus $222.75 -
Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph
MSRP $371.00Surplus $236.74Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph​ ARCA SKU: C15-2190 Brand: Square D MPN: QO350VH UPC: 785901060215 Shipping Weight: 1.03 Shipping Height: 2.30...- SKU:
- C15-2190
- Series:
- QO
- Type:
- Bi-Metallic
- Type:
- Thermal
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 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:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 22 kA Interrupt, 3-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:
- Eaton_41012_1-6_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Current Rating:
- 50 A
- Country of Origin:
- Ireland
MSRP $371.00Surplus $236.74 -
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Square D QO360VH Molded Case Breakers (MCCBs)
MSRP $674.00Surplus $181.98SKU: C15-18859 Brand: Square D MPN: QO360VH UPC: 78590106022 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18859
- Interrupting Rating:
- 22 kA
- Number of Poles:
- 3
- Series:
- QO
- Type:
- Common Trip, Miniature, Standard
- Current Rating:
- 60 A
- Terminal Type:
- Box Lug
- Short Description:
- 120/240 VAC 50/60 Hz, 60 A, 22 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Approval:
- UL, CSA
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Data Sheet:
- SchneiderElectric-SquareD_53609_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Mounting:
- Plug-On
MSRP $674.00Surplus $181.98 -
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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 QO380VH Molded Case Breakers (MCCBs)
MSRP $992.00Surplus $267.84SKU: C15-17807 Brand: Square D MPN: QO380VH UPC: 78590106024 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17807
- Series:
- QO
- Number of Poles:
- 3
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Short Description:
- 120/240 VAC 50/60 Hz, 80 A, 22 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Current Rating:
- 80 A
- Interrupting Rating:
- 22 kA
- Type:
- Common Trip, Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Terminal Type:
- Box Lug
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Data Sheet:
- SchneiderElectric-SquareD_53613_1_2_DATA.pdf
- Mounting:
- Plug-On
MSRP $992.00Surplus $267.84 -
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Square D QO390VH Molded Case Breakers (MCCBs)
MSRP $996.00Surplus $146.35SKU: U00-8582 Brand: Square D MPN: QO390VH UPC: 78590112061 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8582
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Series:
- QO
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 90 A, 22 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 3
- Type:
- Common Trip, Miniature, Standard
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Mounting:
- Plug-On
- Data Sheet:
- SchneiderElectric-SquareD_53615_1_2_DATA.pdf
- Current Rating:
- 90 A
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
MSRP $996.00Surplus $146.35
Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.
