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 QOB250 Miniature Circuit Breakers (MCBs) 2P 50A 120V EA
MSRP $91.54Surplus $24.50Square D QOB250 Miniature Circuit Breakers (MCBs) 2P 50A 120V EA​ ARCA SKU: C15-6658 Brand: Square D MPN: QOB250 UPC: 78590141698 Shipping Weight: 0.60 lbs. Shipping Height: 3.11 In...- SKU:
- C15-6658
- TS PIK:
- 111088427
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Series:
- QOB
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Data Sheet:
- SchneiderElectric_21336_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Used On:
- NQ Panelboard
- Mounting:
- Bolt-On
- Country of Origin:
- United States
- Approval:
- UL, CSA
- Installation:
- Bolt-On
MSRP $91.54Surplus $24.50 -
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Square D EDB14050EPD Miniature Circuit Breakers (MCBs)
MSRP $865.00Surplus $233.55SKU: C15-15862 Brand: Square D MPN: EDB14050EPD UPC: 78590158362 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-15862
- Type:
- Thermal Magnetic, Miniature
- Mounting:
- Bolt-On
- Size:
- 1.96 Inch Width x 4.05 Inch Depth x 6.64 Inch Height
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Current Rating:
- 50 A
- Terminal Type:
- Lug
- Used On:
- NF Panelboard
- Voltage Rating:
- 277 VAC
- Number of Poles:
- 1
- Short Description:
- 277 VAC, 50 A, 18 kA Interrupt, 1-Pole, 12 to 4 AWG Aluminum, 14 to 6 AWG Copper, Bolt-On Mount, Lug Terminal, Equipment Protector, Miniature Circuit Breaker
- Interrupting Rating:
- 18 kA at 277/240/120/240 VAC, 25 kA at 120 VAC
- Approval:
- UL (Canada and US)
- Installation/Operator:
- SchneiderElectric-SquareD_00071_INST.pdf
- CAD Drawings:
- SchneiderElectric-SquareD_17563_1_CAD.pdf
- Trip Sensitivity:
- 30 MilliA
- Catalog:
- SchneiderElectric_00257_9_28_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_12664_1_2_DATA.pdf
MSRP $865.00Surplus $233.55 -
Square D EGB34050 Miniature Circuit Breakers (MCBs) 480/277V
MSRP $916.11Surplus $382.70SKU: C15-6363 Brand: Square D MPN: EGB34050 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6363
- TS PIK:
- 120251318
- Number of Poles:
- 3
- Short Description:
- 480 Star/277 VAC, 50 A, 35 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Interrupting Rating:
- 35 kA at 480 Star/277 VAC
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Voltage Rating:
- 480 Star/277 VAC
- Data Sheet:
- SchneiderElectric-SquareD_45682_1_2_DATA.pdf
- Current Rating:
- 50 A
- Series:
- EGB
- Type:
- Thermal Magnetic, Branch, Miniature
- Used On:
- NF Merchandised Panelboard
- Mounting:
- Bolt-On
- Approval:
- UL (Canada and US)
- Application:
- Lighting
- Installation:
- Bolt-On
- Trip Setting:
- 630 A (Hold), 1800 A (Trip)
- Country of Origin:
- Mexico
MSRP $916.11Surplus $382.70 -
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Square D QOB150 Everything Else
MSRP $32.24Surplus $25.94Square D QOB150 Everything Else​ ARCA SKU: C15-6389 Brand: Square D MPN: QOB150 UPC: 78590141680 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0...- SKU:
- C15-6389
- TS PIK:
- 111088422
- Series:
- QOB
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_21277_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Used On:
- NQ Panelboard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA, 1-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Type:
- Miniature, Standard
- Number of Poles:
- 1
- Mounting:
- Bolt-On
- Country of Origin:
- United States
- Approval:
- UL, CSA
- Installation:
- Bolt-On
MSRP $32.24Surplus $25.94 -
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Square D QOB150HID Molded Case Breakers (MCCBs)
MSRP $42.00Surplus $11.34SKU: C15-17843 Brand: Square D MPN: QOB150HID UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-17843
- Size:
- 0.75 Inch W x 2.91 Inch D x 3 Inch H
- Series:
- QOB-HID
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 1-Pole, Bolt-On Mount, 1-Panel Space, Box Lug Terminal, High Intensity Discharge, Miniature Circuit Breaker
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SchneiderElectric-SquareD_15134_1_2_DATA.pdf
- Used On:
- NQ and NQOD Panelboard/Interior
- Installation/Operator:
- SchneiderElectric-SquareD_00832_INST.pdf
- Application:
- Fluorescent/HID Lighting
- Current Rating:
- 50 A
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Approval:
- UL, CSA
- Type:
- Thermal Magnetic
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Poles:
- 1
- Catalog:
- SchneiderElectric_00260_9_15_CAT.pdf
MSRP $42.00Surplus $11.34 -
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Square D QOB250GFI Miniature Circuit Breakers (MCBs)
MSRP $595.00Surplus $134.32SKU: C15-10914 Brand: Square D MPN: QOB250GFI UPC: 78590136297 Shipping Weight: 1.05 lbs. Shipping Height: 6.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-10914
- TS PIK:
- 115542999
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Number of Poles:
- 2
- Series:
- QOB-GFI
- Type:
- Thermal Magnetic, Common Trip, Equipment Protector
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Prop 65 Warning:
- Yes
- Interrupting Rating:
- 10 kA
- Current Rating:
- 50 A
- Mounting:
- Bolt-On
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Used On:
- NQOD Panelboard/Interior
- Installation/Operator:
- SchneiderElectric-SquareD_00198_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_15177_1_2_DATA.pdf
- Size:
- 1.5 Inch W x 2.91 Inch D x 4.12 Inch H
- Trip Sensitivity:
- 6 MilliA
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Approval:
- UL, CSA
MSRP $595.00Surplus $134.32 -
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Square D QOB250HID Molded Case Breakers (MCCBs)
MSRP $90.00Surplus $24.30SKU: C15-17877 Brand: Square D MPN: QOB250HID UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-17877
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, High Intensity Discharge, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Application:
- Fluorescent/HID Lighting
- Current Rating:
- 50 A
- Data Sheet:
- SchneiderElectric-SquareD_15178_1_2_DATA.pdf
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Poles:
- 2
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Installation/Operator:
- SchneiderElectric-SquareD_00832_INST.pdf
- Catalog:
- SchneiderElectric_00260_9_15_CAT.pdf
- Series:
- QOB-HID
- Approval:
- UL, CSA
- Mounting:
- Bolt-On
- Type:
- Thermal Magnetic
- Used On:
- NQ and NQOD Panelboard/Interior
MSRP $90.00Surplus $24.30 -
Square D QOB350GFI Miniature Circuit Breakers (MCBs) EA
MSRP $836.00Surplus $957.60SKU: C15-10919 Brand: Square D MPN: QOB350GFI UPC: 78590169018 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10919
- TS PIK:
- 124273845
- Short Description:
- 208 VAC Star/120 VAC, 50 A, 10 kA Interrupt, 3-Pole, Bolt-On Mount, 3-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Series:
- QOB
- Prop 65 Warning:
- Yes
- Data Sheet:
- SchneiderElectric-SquareD_15232_1_2_DATA.pdf
- Type:
- Miniature, Thermal Magnetic
- Number of Poles:
- 3
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Current Rating:
- 50 A
- Voltage Rating:
- 208 VAC Star/120 VAC at 50/60 Hz
- Mounting:
- Bolt-On
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Installation/Operator:
- SchneiderElectric-SquareD_00894_INST.pdf
- Used On:
- NQ Panelboard/Interior
- Interrupting Rating:
- 10 kA
- Size:
- 2.25 Inch W x 2.91 Inch D x 4.12 Inch H
- Approval:
- UL, CSA
- Trip Sensitivity:
- 6 MilliA
- Country of Origin:
- Mexico
MSRP $836.00Surplus $957.60
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