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 ECB34020G3 Miniature Circuit Breakers (MCBs)
MSRP $1,211.56Surplus $694.41SKU: C15-6408 Brand: Square D MPN: ECB34020G3 UPC: 78590130019 Shipping Weight: 2.90 lbs. Shipping Height: 4.00 In. Shipping Length: 7.00 In. Shipping Width: 3.00 In...- SKU:
- C15-6408
- TS PIK:
- 123714635
- Type:
- Molded Case
- Series:
- ECB
- Voltage Rating:
- 240 VAC, 480 VAC Star/277 VAC
- Short Description:
- 480 VAC Star/277 VAC, 20 A, 3-Pole, 42 kA Interrupt, 12 to 8 AWG Aluminum, 10 to 8 AWG Copper, Bolt-On Mount, Circuit Breaker
- Mounting:
- Bolt-On
- Current Rating:
- 20 A
- Number of Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 VAC, 14 kA at 480 VAC Star/277 VAC
- Size:
- 2.25 Inch W x 2.97 Inch D x 3.5 Inch
- Used On:
- Powerlink Lighting Control System
- Data Sheet:
- SchneiderElectric-SquareD_12651_1_2_DATA.pdf
- Catalog:
- SchneiderElectric_00257_9_39_CAT.pdf
- Wire Size:
- 12 to 8 AWG (Aluminum), 10 to 8 AWG (Copper)
- Country of Origin:
- Mexico
MSRP $1,211.56Surplus $694.41 -
Square D EGB34030 Everything Else
MSRP $1,247.10Surplus $409.75SKU: C15-6415 Brand: Square D MPN: EGB34030 UPC: 78590107301 Shipping Weight: 1.72 lbs. Shipping Height: 5.66 In. Shipping Length: 2.94 In. Shipping Width: 4.05 In...- SKU:
- C15-6415
- TS PIK:
- 115345453
- Short Description:
- 480 Star/277 VAC, 30 A, 35 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Type:
- Thermal Magnetic, Branch, Miniature
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Number of Poles:
- 3
- Current Rating:
- 30 A
- Used On:
- NF Merchandised Panelboard
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Voltage Rating:
- 480 Star/277 VAC
- Interrupting Rating:
- 35 kA at 480 Star/277 VAC
- Data Sheet:
- SchneiderElectric-SquareD_45676_1_2_DATA.pdf
- Series:
- EGB
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
- Application:
- Lighting
- Trip Setting:
- 270 A (Hold), 875 A (Trip)
- Approval:
- UL (Canada and US)
- Installation:
- Bolt-On
MSRP $1,247.10Surplus $409.75 -
Square D EGB34050 Miniature Circuit Breakers (MCBs) 480/277V
MSRP $1,247.10Surplus $520.97SKU: 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 $1,247.10Surplus $520.97 -
Square D QOB330GFI Miniature Circuit Breakers (MCBs) EA
MSRP $1,138.05Surplus $1,303.58SKU: C15-10918 Brand: Square D MPN: QOB330GFI UPC: 78590198922 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10918
- TS PIK:
- 124985533
- Data Sheet:
- SchneiderElectric-SquareD_15219_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00894_INST.pdf
- Used On:
- NQ Panelboard/Interior
- Wire Size:
- 12 to 8 AWG (Aluminum), 14 to 8 AWG (Copper)
- Type:
- Miniature, Thermal Magnetic
- Prop 65 Warning:
- Yes
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Size:
- 2.25 Inch W x 2.91 Inch D x 4.12 Inch H
- Short Description:
- 208 VAC Star/120 VAC, 30 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
- Mounting:
- Bolt-On
- Series:
- QOB
- Current Rating:
- 30 A
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 208 VAC Star/120 VAC at 50/60 Hz
- Approval:
- UL, CSA
- Trip Sensitivity:
- 6 MilliA
- Country of Origin:
- Mexico
MSRP $1,138.05Surplus $1,303.58 -
Square D QOB350GFI Miniature Circuit Breakers (MCBs) EA
MSRP $1,138.05Surplus $1,303.58SKU: 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 $1,138.05Surplus $1,303.58 -
THQB32040 Miniature Circuit Breakers (MCBs) THQB 3P 40A 240V
MSRP $535.33Surplus $102.91THQB32040 Miniature Circuit Breakers (MCBs) THQB 3P 40A 240V​ ARCA SKU: C15-2470 Brand: MPN: THQB32040 UPC: 783164012422 Shipping Weight: 1.15 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-2470
- Amps:
- 40 A
- Terminal Type:
- Bolt-On
- Type:
- Thermal Magnetic
- Type:
- Compact
- Short Description:
- 240 VAC, 40 A, 10 kA, 3-Pole, 8 to 3 AWG Copper/Aluminum, 1" Bolt-On Mount, Q-Line Frame, Molded Case, Non-Interchangeable/Common Trip, Compact, Fixed Thermal Magnetic, Circuit Breaker
- Current Rating:
- 40 A
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_35_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00005_INST.pdf
- Mounting:
- Bolt-On
- Number of Poles:
- 3
- Series:
- THQB
- Country of Origin:
- United States
MSRP $535.33Surplus $102.91 -
THQB32070 Miniature Circuit Breakers (MCBs) 3P 70A 120V
MSRP $694.26Surplus $123.88SKU: C15-3998 Brand: GENERAL ELECTRIC MPN: THQB32070 UPC: 78316401245 Shipping Weight: 1.05 lbs. Shipping Height: 4.00 In. Shipping Length: 4.00 In. Shipping Width: 3...- SKU:
- C15-3998
- Type:
- Thermal Magnetic
- Type:
- Compact
- Amps:
- 32 A
- Terminal Type:
- Bolt-On
- Short Description:
- 240 VAC, 70 A, 10 kA, 3-Pole, 6 to 1/0 AWG Copper/4 to 1/0 AWG Aluminum, 1" Bolt-On Mount, Q-Line Frame, Molded Case, Non-Interchangeable/Common Trip, Compact, Fixed Thermal Magnetic
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_35_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00005_INST.pdf
- Current Rating:
- 70 A
- Mounting:
- Bolt-On
- Number of Poles:
- 3
- Series:
- THQ
- Country of Origin:
- United States
MSRP $694.26Surplus $123.88
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