
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 FC34020 Molded Case Breakers (MCCBs)
MSRP $4,764.55Surplus $690.41SKU: C15-7039 Brand: Square D MPN: FC34020 UPC: Shipping Weight: 5.20 lbs. Shipping Height: 6.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00 In. Product...- SKU:
- C15-7039
- Current Rating:
- 20 A
- Voltage Rating:
- 480 VAC, 250 VDC
- Number of Poles:
- 3
- Series:
- FC
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Type:
- Molded Case, Thermal Magnetic, Main
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 VAC
- Catalog:
- SchneiderElectric-SquareD_00096_25_28_29_CAT.pdf
- Short Description:
- 480 VAC, 250 VDC, 20 A, 10/18/25 kA, 3-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Approval:
- UL, CSA, IEC, Federal Specification W-C-375B/GEN
- Trip Setting:
- 275 A Hold, 600 A Trip
- Used On:
- I-Line Panelboard and Switchboard
- Installation:
- Plug-On
- Application:
- Construction
MSRP $4,764.55Surplus $690.41 -
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GE FAL34020 Molded Case Breakers (MCCBs) 3P 20A 50/60Hz 3Ph EA
MSRP $4,083.90Surplus $1,191.42SKU: U00-3258 Brand: GE MPN: FAL34020 UPC: 78590142324 Shipping Weight: 4.65 lbs. Shipping Height: 6.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- U00-3258
- TS PIK:
- 128397896
- Size:
- 4.5 Inch Width x 4.13 Inch Depth x 6 Inch Height
- Terminal Type:
- Lug
- Current Rating:
- 20 A
- Number of Poles:
- 3
- Type:
- Thermal Magnetic
- Voltage Rating:
- 480 VAC, 250 VDC
- Series:
- FA
- Data Sheet:
- SchneiderElectric_05208_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_00096_21-23_CAT.pdf
- Frame Type:
- F
- Short Description:
- 480 V, 20 A, 18 kA Interrupt, 3-Pole, Line/Load Lug Terminal, Unit Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Interrupting Rating:
- 18 kA at 480/600 VAC
- Approval:
- UL, CSA, IEC, Federal Specification W-C-375B/GEN
- Prop 65 Warning:
- Yes
MSRP $4,083.90Surplus $1,191.42 -
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Square D NNB FA34020 Molded Case Breakers (MCCBs) EA
MSRP $1,262.51Surplus $202.97SKU: E30-10196 Brand: Square D MPN: FA34020 UPC: Shipping Weight: 5.25 lbs. Shipping Height: 5.00 In. Shipping Length: 9.00 In. Shipping Width: 5.00 In. Product...- SKU:
- E30-10196
- Data Sheet:
- SchneiderElectric-SquareD_04337_1_2_DATA.pdf
- Interrupting Rating:
- 18 kA
- Short Description:
- 480 VAC, 250 VDC, 20 A, 10/18/25 kA, 3-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Type:
- Molded Case, Thermal Magnetic
- Catalog:
- SchneiderElectric-SquareD_00096_25_28_CAT.pdf
- Voltage Rating:
- 480 VAC, 250 VDC
- Series:
- FA
- Current Rating:
- 20 A
- Number of Poles:
- 3
- Used On:
- I-Line Panelboard
- Trip Setting:
- 600 A
MSRP $1,262.51Surplus $202.97 -
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Siemens ED42B020 Molded Case Breakers (MCCBs)
MSRP $2,029.70Surplus $662.99SKU: C15-7546 Brand: Siemens MPN: ED42B020 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7546
- TS PIK:
- 126675149
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Series:
- ED4
- Short Description:
- 480 VAC 50/60 Hz, 250 VDC, 20 A, 18 kA, 2-Pole, 14 to 10 AWG Copper/12 to 10 AWG Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Country of Origin:
- Mexico
- Interrupting Rating:
- 65 kA at 240 VAC, 18 kA at 480 VAC, 30 kA at 250 VDC (UL 489)
- Type:
- Molded Case, Thermal Magnetic
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Maximum AC Voltage Rating:
- 480 V
- Size:
- 2 Inch Width x 4.56 Inch Depth x 6.35 Inch Height
- Maximum DC Voltage Rating:
- 250 V
- Terminal Type:
- Load Lug
- Frame Type:
- ED
- Current Rating:
- 20 A
- Voltage Rating:
- 480 VAC, 250 VDC
- Number of Poles:
- 2
- Approval:
- UL 489, CSA
MSRP $2,029.70Surplus $662.99 -
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Square D FA24020AB Molded Case Breakers (MCCBs)
MSRP $889.54Surplus $1,090.13SKU: C15-8624 Brand: Square D MPN: FA24020AB UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-8624
- Number of Poles:
- 2
- Interrupting Rating:
- 18 kA at 480/600 VAC
- Short Description:
- 480 VAC, 250 VDC, 20 A, 10/18/25 kA, 1-Phase, 2-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Type:
- Molded Case, Thermal Magnetic, Main
- Voltage Rating:
- 480 VAC, 250 VDC
- Approval:
- UL 489, CSA, IEC, Federal Specification W-C-375B/GEN
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_04265_1_2_DATA.pdf
- Used On:
- I-Line Panelboard and Switchboard
- Application:
- Construction, Commercial Building, Control Equipment Panel, Industrial Building, OEM Commercial
- Installation:
- Plug-On
- Series:
- 650, FA
- Current Rating:
- 20 A
- Catalog:
- SchneiderElectric-SquareD_00096_25_28_CAT.pdf
- Trip Setting:
- 275 A Hold, 600 A Trip
MSRP $889.54Surplus $1,090.13 -
Square D FA24020AC Molded Case Breakers (MCCBs)
MSRP $711.59Surplus $759.20SKU: E30-10177 Brand: Square D MPN: FA24020AC UPC: Shipping Weight: 3.50 lbs. Shipping Height: 6.00 In. Shipping Length: 9.00 In. Shipping Width: 3.00 In. Product...- SKU:
- E30-10177
- Number of Poles:
- 2
- Catalog:
- SchneiderElectric-SquareD_00096_25_28_CAT.pdf
- Current Rating:
- 20 A
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Short Description:
- 480 VAC, 250 VDC, 20 A, 10/18/25 kA, 2-Phase, 2-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Type:
- Molded Case, Thermal Magnetic, Main
- Interrupting Rating:
- 18 kA at 480/600 VAC
- Voltage Rating:
- 480 VAC, 250 VDC
- Series:
- 650, FA
- Data Sheet:
- SchneiderElectric-SquareD_04266_1_2_DATA.pdf
- Used On:
- I-Line Panelboard and Switchboard
- Application:
- Construction, Commercial Building, Control Equipment Panel, Industrial Building, OEM Commercial
- Approval:
- UL 489, CSA, IEC, Federal Specification W-C-375B/GEN
- Trip Setting:
- 275 A Hold, 600 A Trip
- Installation:
- Plug-On
- Country of Origin:
- Mexico
MSRP $711.59Surplus $759.20 -
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Square D FA24020BC Molded Case Breakers (MCCBs)
MSRP $1,230.62Surplus $332.27SKU: L19-6466 Brand: Square D MPN: FA24020BC UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- L19-6466
- Installation:
- Plug-On
- Short Description:
- 480 VAC, 250 VDC, 20 A, 10/18/25 kA, 4-Phase, 2-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_00096_25_28_CAT.pdf
- Used On:
- I-Line Panelboard and Switchboard
- Current Rating:
- 20 A
- Application:
- Construction, Commercial Building, Control Equipment Panel, Industrial Building, OEM Commercial
- Number of Poles:
- 2
- Series:
- 650, FA
- Data Sheet:
- SchneiderElectric-SquareD_04267_1_2_DATA.pdf
- Trip Setting:
- 275 A Hold, 600 A Trip
- Type:
- Molded Case, Thermal Magnetic, Main
- Interrupting Rating:
- 18 kA at 480 VAC
- Approval:
- UL 489, CSA, IEC, Federal Specification W-C-375B/GEN
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Voltage Rating:
- 480 VAC, 250 VDC
MSRP $1,230.62Surplus $332.27 -
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Square D FA340201021 Molded Case Breakers (MCCBs)
MSRP $2,530.66Surplus $683.28SKU: C15-16042 Brand: Square D MPN: FA340201021 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-16042
- Number of Poles:
- 3
- Prop 65 Warning:
- Yes
- Voltage Rating:
- 480 VAC, 250 VDC
- Current Rating:
- 20 A
- Approval:
- UL, CSA
- Short Description:
- 480 VAC, 250 VDC, 20 A, 10/18/25 kA, 3-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Shunt Trip, Molded Case Circuit Breaker
- Trip Setting:
- 275 to 600 A
- Application:
- Power Distribution
- Type:
- Molded Case, Thermal Magnetic
- Interrupting Rating:
- 10 kA
- Used On:
- Class 650, 651 Panelboard/Switchboard
- Data Sheet:
- SchneiderElectric-SquareD_04338_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
MSRP $2,530.66Surplus $683.28 -
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Square D FAL24020 Molded Case Breakers (MCCBs)
MSRP $1,347.69Surplus $363.88SKU: C15-16076 Brand: Square D MPN: FAL24020 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-16076
- Voltage Rating:
- 480 VAC, 250 VDC
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Number of Poles:
- 2
- Frame Type:
- F
- Catalog:
- SchneiderElectric-SquareD_00096_25_26_CAT.pdf
- Current Rating:
- 20 A
- Terminal Type:
- Lug
- Type:
- Thermal Magnetic
- Approval:
- UL, CSA, IEC, Federal Specification W-C-375B/GEN
- Size:
- 3 Inch Width x 4.13 Inch Depth x 6 Inch Height
- Interrupting Rating:
- 18 kA at 480/600 VAC
- Short Description:
- 480 VAC, 250 VDC, 20 A, 18/10 kA, 2-Pole, F-Frame, Unit Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_04414_1_2_DATA.pdf
- Series:
- FA
- Prop 65 Warning:
- Yes
MSRP $1,347.69Surplus $363.88 -
Square D FAL34020 Molded Case Breakers (MCCBs)
MSRP $1,552.10Surplus $736.00SKU: C15-8565 Brand: Square D MPN: FAL34020 UPC: 78590142324 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-8565
- TS PIK:
- 128397896
- Frame Type:
- F
- Type:
- Thermal Magnetic
- Current Rating:
- 20 A
- Interrupting Rating:
- 18 kA at 480/600 VAC
- Series:
- FA
- Catalog:
- SchneiderElectric-SquareD_00096_21-23_CAT.pdf
- Size:
- 4.5 Inch Width x 4.13 Inch Depth x 6 Inch Height
- Voltage Rating:
- 480 VAC, 250 VDC
- Data Sheet:
- SchneiderElectric_05208_1_2_DATA.pdf
- Number of Poles:
- 3
- Short Description:
- 480 V, 20 A, 18 kA Interrupt, 3-Pole, Line/Load Lug Terminal, Unit Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Prop 65 Warning:
- Yes
- Terminal Type:
- Lug
- Approval:
- UL, CSA, IEC, Federal Specification W-C-375B/GEN
- Country of Origin:
- Mexico
MSRP $1,552.10Surplus $736.00
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.