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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Contact Us For Quote
Square D QO310 Miniature Circuit Breakers (MCBs)
MSRP $248.00Surplus $154.28Square D QO310 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6457 Brand: Square D MPN: QO310 UPC: 78590147748 Shipping Weight: 0.80 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6457
- TS PIK:
- 21032416
- Terminal Type:
- Pressure Plate
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 5/10 kA Interrupt, 3-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
- Current Rating:
- 10 A
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Type:
- Common Trip, Miniature, Standard
- Number of Poles:
- 3
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53555_1_2_DATA.pdf
- Interrupting Rating:
- 5/10 kA
- 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
- Series:
- QO
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $248.00Surplus $154.28 -
Contact Us For Quote
Square D QOB210 Miniature Circuit Breakers (MCBs)
MSRP $91.54Surplus $69.16Square D QOB210 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6549 Brand: Square D MPN: QOB210 UPC: 78590150996 Shipping Weight: 0.60 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-6549
- TS PIK:
- 109595193
- Current Rating:
- 10 A
- Type:
- Miniature, Standard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Series:
- QOB
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Number of Poles:
- 2
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Used On:
- NQ Panelboard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_21286_1_2_DATA.pdf
- Mounting:
- Bolt-On
- Installation:
- Bolt-On
- Approval:
- UL, CSA
MSRP $91.54Surplus $69.16 -
Contact Us For Quote
Square D QOU210 Miniature Circuit Breakers (MCBs) EA
MSRP $93.00Surplus $50.54SKU: C15-10924 Brand: Square D MPN: QOU210 UPC: 78590147745 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10924
- TS PIK:
- 111089103
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Terminal Type:
- Slotted Box Lug Line/Load
- Type:
- Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Series:
- QOU
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 10 kA Interrupt, 2-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Current Rating:
- 10 A
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Used On:
- OEM
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Data Sheet:
- SchneiderElectric_21524_1_2_DATA.pdf
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Approval:
- UL, CSA
MSRP $93.00Surplus $50.54 -
Contact Us For Quote
Square D QO210 Miniature Circuit Breakers (MCBs)
MSRP $67.00Surplus $34.58Square D QO210 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6583 Brand: Square D MPN: QO210 UPC: 78590120560 Shipping Weight: 0.55 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6583
- TS PIK:
- 118952390
- Interrupting Rating:
- 5/10 kA
- Number of Poles:
- 2
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 2.99 Inch Height
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Series:
- QO
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Terminal Type:
- Pressure Plate
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53468_1_2_DATA.pdf
- Type:
- Common Trip, Miniature, Standard
- Mounting:
- Plug-On
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 5/10 kA Interrupt, 2-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker
- Current Rating:
- 10 A
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $67.00Surplus $34.58 -
Contact Us For Quote
Square D QOB310 Molded Case Breakers (MCCBs)
MSRP $375.36Surplus $101.35SKU: C15-17884 Brand: Square D MPN: QOB310 UPC: 78590151869 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17884
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Current Rating:
- 10 A
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 10 kA, 3-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Data Sheet:
- SchneiderElectric_21359_1_2_DATA.pdf
- Series:
- QOB
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Type:
- Miniature, Standard
- Used On:
- NQ Panelboard
- Approval:
- UL, CSA
- Number of Poles:
- 3
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Installation:
- Bolt-On
MSRP $375.36Surplus $101.35 -
Contact Us For Quote
Square D QOU110 Miniature Circuit Breakers (MCBs)
MSRP $40.20Surplus $19.07SKU: C15-6671 Brand: Square D MPN: QOU110 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6671
- Current Rating:
- 10 A
- Series:
- QOU
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Number of Poles:
- 1
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Data Sheet:
- SchneiderElectric_21446_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Used On:
- OEM
- Type:
- Miniature, Standard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Interrupting Rating:
- 10 kA
- TS PIK:
- 21356075
- Approval:
- UL, CSA
MSRP $40.20Surplus $19.07 -
Contact Us For Quote
Square D QOU310 Molded Case Breakers (MCCBs)
MSRP $512.00Surplus $138.24SKU: C15-18881 Brand: Square D MPN: QOU310 UPC: 78590148924 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-18881
- Interrupting Rating:
- 10 kA
- Current Rating:
- 10 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 10 kA Interrupt, 3-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Type:
- Miniature, Standard
- Series:
- QOU
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Data Sheet:
- SchneiderElectric_21631_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Used On:
- OEM
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Approval:
- UL, CSA
- Size:
- 2.25 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
MSRP $512.00Surplus $138.24
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