
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 QOB340VH Miniature Circuit Breakers (MCBs)
MSRP $475.20Surplus $236.74Square D QOB340VH Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8591 Brand: Square D MPN: QOB340VH UPC: 78590105481 Shipping Weight: 1.10 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8591
- TS PIK:
- 109595204
- Series:
- QOB-VH
- Type:
- Miniature, Standard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Number of Poles:
- 3
- Current Rating:
- 40 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21395_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Used On:
- NQ Panelboard
- Country of Origin:
- Mexico
- Installation:
- Bolt-On
- Approval:
- UL, CSA
MSRP $475.20Surplus $236.74 -
Square D QO340 Miniature Circuit Breakers (MCBs) 3P 40A 240V
MSRP $273.00Surplus $67.20Square D QO340 Miniature Circuit Breakers (MCBs) 3P 40A 240V​ ARCA SKU: C15-4924 Brand: Square D MPN: QO340 UPC: 78590140076 Shipping Weight: 0.85 lbs. Shipping Height: 3.00 In...- SKU:
- C15-4924
- Series:
- QO
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 2.99 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:
- 3
- 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, 40 A, 5/10 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:
- SchneiderElectric-SquareD_53592_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 21371537
- Current Rating:
- 40 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $273.00Surplus $67.20 -
Contact Us For Quote
Square D QOB3401021 Molded Case Breakers (MCCBs)
MSRP $857.00Surplus $231.39SKU: C15-18878 Brand: Square D MPN: QOB3401021 UPC: 78590149442 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18878
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Number of Poles:
- 3
- Type:
- Miniature, Standard
- Current Rating:
- 40 A
- Installation/Operator:
- SchneiderElectric_00595_INST.pdf
- Series:
- QOB
- Installation:
- Bolt-On
- Catalog:
- SchneiderElectric-Telemecanique_00033_1_15_9_20_CAT.pdf
- Used On:
- NQ Panelboard
- Data Sheet:
- SchneiderElectric_11150_1_2_DATA.pdf
- Approval:
- UL, CSA
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker with 120/208/240 VAC Shunt Trip Package
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
MSRP $857.00Surplus $231.39 -
Square D QOU340 Miniature Circuit Breakers (MCBs)
MSRP $308.00Surplus $143.76SKU: C15-10934 Brand: Square D MPN: QOU340 UPC: 78590141895 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10934
- TS PIK:
- 111088455
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Series:
- QOU
- Current Rating:
- 40 A
- Interrupting Rating:
- 10 kA
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Used On:
- OEM
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21678_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Number of Poles:
- 3
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $308.00Surplus $143.76 -
Contact Us For Quote
Square D QOU3401021 Molded Case Breakers (MCCBs)
MSRP $476.00Surplus $128.52SKU: C15-17976 Brand: Square D MPN: QOU3401021 UPC: 78590151862 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17976
- Interrupting Rating:
- 10 kA
- Approval:
- UL, CSA
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Used On:
- OEM
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Size:
- 3 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Number of Poles:
- 3
- Data Sheet:
- SchneiderElectric_21679_1_2_DATA.pdf
- Series:
- QOU
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard, Shunt Trip
- Current Rating:
- 40 A
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 40 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Shunt Trip, Standard, Miniature Circuit Breaker
MSRP $476.00Surplus $128.52
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.