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 QO345 Miniature Circuit Breakers (MCBs)
MSRP $248.00Surplus $91.04Square D QO345 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6588 Brand: Square D MPN: QO345 UPC: 78590101248 Shipping Weight: 0.85 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6588
- TS PIK:
- 109595139
- Series:
- QO
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 45 A, 5/10 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Type:
- Common Trip, Miniature, Standard
- Voltage Rating:
- 120/240 VAC
- Terminal Type:
- Box Lug
- Mounting:
- Plug-On
- Current Rating:
- 45 A
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Number of Poles:
- 3
- Data Sheet:
- SchneiderElectric-SquareD_53602_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Interrupting Rating:
- 5/10 kA
- 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
- Country of Origin:
- United States
MSRP $248.00Surplus $91.04 -
Square D EDB34045 Miniature Circuit Breakers (MCBs)
MSRP $669.00Surplus $301.56SKU: C15-10686 Brand: Square D MPN: EDB34045 UPC: 78590130723 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10686
- TS PIK:
- 115542998
- Short Description:
- 480 Star/277 VAC, 45 A, 18 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_45616_1_2_DATA.pdf
- Interrupting Rating:
- 18 kA at 480 Star/277 VAC
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Current Rating:
- 45 A
- Number of Poles:
- 3
- Type:
- Thermal Magnetic, Branch, Miniature
- Voltage Rating:
- 480 Star/277 VAC
- Series:
- EDB
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Used On:
- NF Merchandised Panelboard
MSRP $669.00Surplus $301.56 -
Square D EGB34045 Miniature Circuit Breakers (MCBs)
MSRP $609.00Surplus $274.37SKU: C15-7758 Brand: Square D MPN: EGB34045 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7758
- TS PIK:
- 21333992
- Voltage Rating:
- 480 Star/277 VAC
- Interrupting Rating:
- 35 kA at 480 Star/277 VAC
- Short Description:
- 480 Star/277 VAC, 45 A, 35 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Used On:
- NF Merchandised Panelboard
- Type:
- Thermal Magnetic, Branch, Miniature
- Series:
- EGB
- Number of Poles:
- 3
- Current Rating:
- 45 A
- Data Sheet:
- SchneiderElectric-SquareD_45681_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Approval:
- UL (Canada and US)
- Trip Setting:
- 630 A (Hold), 1800 A (Trip)
- Installation:
- Bolt-On
- Application:
- Lighting
MSRP $609.00Surplus $274.37 -
Square D EJB34045 Miniature Circuit Breakers (MCBs)
MSRP $1,358.00Surplus $617.96SKU: C15-10704 Brand: Square D MPN: EJB34045 UPC: 78590113062 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10704
- TS PIK:
- 116558698
- Type:
- Thermal Magnetic, Branch, Miniature
- Voltage Rating:
- 480 Star/277 VAC
- Short Description:
- 480 Star/277 VAC, 45 A, 65 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker
- Used On:
- NF Merchandised Panelboard
- Installation/Operator:
- SchneiderElectric-SquareD_01117_INST.pdf
- Series:
- EJB
- Interrupting Rating:
- 65 kA at 480 Star/277 VAC
- Data Sheet:
- SchneiderElectric-SquareD_45734_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_31-9_33_CAT.pdf
- Current Rating:
- 45 A
- Number of Poles:
- 3
MSRP $1,358.00Surplus $617.96 -
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Square D FAL36045 Molded Case Breakers (MCCBs) FAL 3P 45A 600V 50/60Hz 3Ph F Frame
MSRP $1,500.00Surplus $877.80SKU: C15-2901 Brand: Square D MPN: FAL36045 UPC: 785901529750 Shipping Weight: 4.25 lbs. Shipping Height: 5.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-2901
- Approval:
- UL
- Approval:
- CSA
- Amps:
- 45 A
- Frame:
- F
- Interrupting Rating:
- 25 kA at 240 VAC
- Interrupting Rating:
- 18 Kiloampere at 480 VAC Star/277 VAC
- Interrupting Rating:
- 18 Kiloampere at 480 VAC
- Interrupting Rating:
- 14 Kiloampere at 600 VAC Star/347 VAC
- Interrupting Rating:
- 14 Kiloampere at 600 VAC (UL/CSA/NOM)
- Interrupting Rating:
- 10/2.5 Kiloampere at 415 VAC (IEC)
- Interrupting Rating:
- 10 Kiloampere at 250 VDC
- Maximum AC Voltage:
- 600 V
- Maximum DC Voltage:
- 250 V
- Poles:
- 3
- Size:
- 4.5 Inch W x 4.13 Inch D x 6 Inch H
- Terminal Type:
- Line Lug
- Terminal Type:
- Load Lug
- Type:
- Molded Case
- Type:
- Thermal Magnetic
- Volts:
- 240/480/600 VAC at 50/60 Hz
- Volts:
- 480 VAC Star/277 VAC at 50/60 Hz
- Volts:
- 600 VAC Star/347 VAC at 50/60 Hz (UL/CSA/NOM)
- Volts:
- 415 VAC at 50/60 Hz (IEC)
- Volts:
- 250 VDC
- Short Description:
- 600 AC, 250 VDC, 45 A, 14/10 kA, 3-Pole, F-Frame, Unit Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Series:
- FA
- Voltage Rating:
- 240/480/600 VAC at 50/60 Hz, 480 VAC Star/277 VAC at 50/60 Hz, 600 VAC Star/347 VAC at 50/60 Hz (UL/CSA/NOM), 415 VAC at 50/60 Hz (IEC), 250 VDC
- Catalog:
- SchneiderElectric-SquareD_00096_25_26_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_04489_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Number of Poles:
- 3
- Frame Type:
- F
- Maximum DC Voltage Rating:
- 250 V
- Current Rating:
- 45 A
- Maximum AC Voltage Rating:
- 600 V
MSRP $1,500.00Surplus $877.80 -
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Square D FH36045 Molded Case Breakers (MCCBs)
MSRP $1,900.00Surplus $293.15SKU: C15-7198 Brand: Square D MPN: FH36045 UPC: Shipping Weight: 6.35 lbs. Shipping Height: 6.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00 In. Product...- SKU:
- C15-7198
- Series:
- FH
- Number of Poles:
- 3
- Short Description:
- 240/480/600 VAC, 250 VDC, 45 A, 65/25/18/10 kA, 3-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_04556_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Current Rating:
- 45 A
- Catalog:
- SchneiderElectric_00256_11_9_CAT.pdf
- Interrupting Rating:
- 10/65 kA at 240 VAC, 25 kA at 480 VAC Star/277 VAC or 480 VAC, 18 kA at 600 VAC Star/347 VAC or 600 VAC (UL/CSA/NOM); 10 kA at 415 VAC (IEC); 50 kA at 250 VDC
- Voltage Rating:
- 240/480/600 VAC at 50/60 Hz, 480 VAC Star/277 VAC at 50/60 Hz, 600 VAC Star/347 VAC at 50/60 Hz (UL/CSA/NOM), 415 VAC at 50/60 Hz (IEC), 250 VDC
- Type:
- Molded Case
- Prop 65 Warning:
- Yes
- Approval:
- UL, CSA
- Used On:
- Class 650/734/820 I-Line Panelboard/Switchboard
- Application:
- Power Distribution
- Trip Setting:
- 400 to 850 A
MSRP $1,900.00Surplus $293.15 -
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Square D HLA36045 Molded Case Breakers (MCCBs)
MSRP $3,079.00Surplus $831.33SKU: C15-16588 Brand: Square D MPN: HLA36045 UPC: 78590142235 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16588
- Number of Poles:
- 3
- Type:
- Thermal Magnetic, Current Limiting
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Series:
- HL
- Catalog:
- SchneiderElectric-SquareD_32357_7_31_9_58_CAT.pdf
- Interrupting Rating:
- 50 kA at 600 VAC, 20 kA at 250 VDC
- Installation/Operator:
- SchneiderElectric-Telemecanique_00047_INST.pdf
- Approval:
- UL, CSA, CE
- Data Sheet:
- SchneiderElectric-SquareD_46865_1-3_DATA.pdf
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 45 A, 50 kA, 3-Pole, H-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Current Limiting, Panelboard Molded Case Circuit Breaker
- Trip Setting:
- 400 A (Hold), 850 A (Trip)
- CAD Drawings:
- SchneiderElectric_29702_1_CAD.pdf
- Used On:
- Class 611/612 I-Line Panelboard and Switchboard
- Current Rating:
- 45 A
- Application:
- Distribution
MSRP $3,079.00Surplus $831.33 -
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Square D HLL36045 Molded Case Breakers (MCCBs)
MSRP $4,508.00Surplus $684.50SKU: U00-8201 Brand: Square D MPN: HLL36045 UPC: 78590188379 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8201
- Installation/Operator:
- SchneiderElectric-SquareD_00142_INST.pdf
- Size:
- 4.09 Inch Width x 3.39 Inch Depth x 6.42 Inch Height
- Series:
- HL
- Interrupting Rating:
- 50 kA at 600 VAC, 20 kA at 250 VDC
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 45 A, 50 kA, 3-Pole, H-Frame, Unit Mount, Line/Load Lug Terminal, 80% Continuous Current, Thermal Magnetic, Current Limiting, Molded Case Circuit Breaker
- Number of Poles:
- 3
- Terminal Type:
- Line/Load Lug
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Type:
- Thermal Magnetic, Current Limiting
- Maximum AC Voltage Rating:
- 600 V
- Data Sheet:
- SchneiderElectric-SquareD_46890_1-3_DATA.pdf
- Current Rating:
- 45 A
- Frame Type:
- H
- Maximum DC Voltage Rating:
- 250 V
- Approval:
- UL, CSA, CE
- Catalog:
- SchneiderElectric-SquareD_32357_7_6_7_31_7_33_7_34_CAT.pdf
- CAD Drawings:
- SchneiderElectric-SquareD_74672_1_CAD.pdf
MSRP $4,508.00Surplus $684.50 -
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Square D QOB345 Miniature Circuit Breakers (MCBs)
MSRP $112.98Surplus $156.94Square D QOB345 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6559 Brand: Square D MPN: QOB345 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6559
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 45 A, 10 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Number of Poles:
- 3
- Used On:
- NQ Panelboard
- Approval:
- UL, CSA
- Series:
- QOB
- Current Rating:
- 45 A
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Data Sheet:
- SchneiderElectric_21396_1_2_DATA.pdf
- Installation:
- Bolt-On
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
MSRP $112.98Surplus $156.94
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