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 LA26300AC Molded Case Breakers (MCCBs)
MSRP $4,053.00Surplus $483.01SKU: C15-7783 Brand: Square D MPN: LA26300AC UPC: 78590100977 Shipping Weight: 15.95 lbs. Shipping Height: 10.00 In. Shipping Length: 18.00 In. Shipping Width: 7.00...- SKU:
- C15-7783
- TS PIK:
- 21332654
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 300 A
- Number of Poles:
- 2
- Interrupting Rating:
- 22 kA at 600 VAC
- Short Description:
- 600 VAC, 250 VDC, 300 A, 22 kA, 2-Pole, L-Frame, AC Phase, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
- Series:
- LA
- Type:
- Thermal Magnetic
- Data Sheet:
- SchneiderElectric-SquareD_47503_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
- Used On:
- I-Line Panelboard and Switchboard
- Trip Setting:
- 1500 to 3000 A
- Application:
- Power Distribution
MSRP $4,053.00Surplus $483.01 -
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Square D LA36125 Molded Case Breakers (MCCBs)
MSRP $4,994.00Surplus $1,331.97SKU: C15-7738 Brand: Square D MPN: LA36125 UPC: 78590133926 Shipping Weight: 18.20 lbs. Shipping Height: 9.00 In. Shipping Length: 18.00 In. Shipping Width: 12.00 In...- SKU:
- C15-7738
- TS PIK:
- 21333373
- Voltage Rating:
- 600 VAC, 250 VDC
- Short Description:
- 600 VAC, 250 VDC, 125 A, 22 kA, 3-Pole, L-Frame, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
- Series:
- LA
- Number of Poles:
- 3
- Current Rating:
- 125 A
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_47509_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-Telemecanique_00505_INST.pdf
- Type:
- Thermal Magnetic
- Interrupting Rating:
- 22 kA at 600 VAC
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
MSRP $4,994.00Surplus $1,331.97 -
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Square D LA36350 Molded Case Breakers (MCCBs)
MSRP $4,944.00Surplus $3,583.02SKU: C15-7768 Brand: Square D MPN: LA36350 UPC: 78590142628 Shipping Weight: 16.45 lbs. Shipping Height: 9.00 In. Shipping Length: 13.00 In. Shipping Width: 13.00 In...- SKU:
- C15-7768
- TS PIK:
- 21332006
- Short Description:
- 600 VAC, 250 VDC, 350 A, 22 kA, 3-Pole, L-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
- Series:
- LA
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
- Current Rating:
- 350 A
- Voltage Rating:
- 600 VAC, 250 VDC
- Type:
- Thermal Magnetic
- Number of Poles:
- 3
- Data Sheet:
- SchneiderElectric-SquareD_47515_1_2_DATA.pdf
- Interrupting Rating:
- 22 kA at 600 VAC
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
MSRP $4,944.00Surplus $3,583.02 -
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Square D LAL26400 Molded Case Breakers (MCCBs)
MSRP $3,807.00Surplus $1,219.55SKU: C15-7769 Brand: Square D MPN: LAL26400 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7769
MSRP $3,807.00Surplus $1,219.55 -
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Square D LAL36000 Molded Case Breakers (MCCBs)
MSRP $1,216.00Surplus $289.99Square D LAL36000 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-8578 Brand: Square D MPN: LAL36000 UPC: Shipping Weight: 14.20 lbs. Shipping Height: 7.00 In. Shipping...- SKU:
- C15-8578
MSRP $1,216.00Surplus $289.99 -
Square D LAL36300 Molded Case Breakers (MCCBs)
MSRP $3,741.39Surplus $3,271.04SKU: C15-7719 Brand: Square D MPN: LAL36300 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7719
- TS PIK:
- 21332377
- Frame Type:
- L
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Interrupting Rating:
- 22 kA at 600 VAC, 10 kA at 250 VDC
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 300 A, 22 kA, 3-Pole, L-Frame, Unit Mount, Line/Load Lug Terminal, Thermal Magnetic, Adjustable, Molded Case Circuit Breaker
- Type:
- Thermal Magnetic, Adjustable
- Terminal Type:
- Line/Load Lug
- Installation/Operator:
- SchneiderElectric-SquareD_01906_INST.pdf
- Number of Poles:
- 3
- Data Sheet:
- SchneiderElectric_14553_1_2_DATA.pdf
- Maximum AC Voltage Rating:
- 600 V
- Size:
- 6 Inch Width x 5.84 Inch Depth x 11 Inch Height
- CAD Drawings:
- SchneiderElectric-SquareD_74682_1_CAD.pdf
- Current Rating:
- 300 A
- Series:
- LA
- Prop 65 Warning:
- Yes
- Catalog:
- SchneiderElectric-SquareD_32357_7_37_CAT.pdf
- Maximum DC Voltage Rating:
- 250 V
- Country of Origin:
- Ireland
- Approval:
- UL, CSA
MSRP $3,741.39Surplus $3,271.04 -
Square D LAL36400 Molded Case Breakers (MCCBs)
MSRP $3,741.39Surplus $3,271.04SKU: C15-7720 Brand: Square D MPN: LAL36400 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7720
- TS PIK:
- 21332364
- Series:
- LA
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Frame Type:
- L
- Data Sheet:
- SchneiderElectric_14560_1_2_DATA.pdf
- Current Rating:
- 400 A
- CAD Drawings:
- SchneiderElectric-SquareD_74682_1_CAD.pdf
- Number of Poles:
- 3
- Maximum DC Voltage Rating:
- 250 V
- Installation/Operator:
- SchneiderElectric-SquareD_01906_INST.pdf
- Terminal Type:
- Line/Load Lug
- Maximum AC Voltage Rating:
- 600 V
- Size:
- 6 Inch Width x 5.84 Inch Depth x 11 Inch Height
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 22 kA, 3-Pole, L-Frame, Unit Mount, Line/Load Lug Terminal, Thermal Magnetic, Adjustable, Molded Case Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_32357_7_37_CAT.pdf
- Type:
- Thermal Magnetic, Adjustable
- Interrupting Rating:
- 22 kA at 600 VAC, 10 kA at 250 VDC
- Country of Origin:
- United States
- Approval:
- UL, CSA
MSRP $3,741.39Surplus $3,271.04 -
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Square D LAP36250MB Molded Case Breakers (MCCBs)
MSRP $3,257.81Surplus $1,511.16SKU: C15-7742 Brand: Square D MPN: LAP36250MB UPC: 78590153004 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-7742
- TS PIK:
- 111090134
- Series:
- 601, LAP
- Voltage Rating:
- 600 V AC, 250 V DC
- Short Description:
- 600 V, 250 A, 3-Pole, Short Handle, Line/Load Lug Terminal, Unit Mount, Magnetic Trip, Molded Case Circuit Breaker
- Frame Type:
- L
MSRP $3,257.81Surplus $1,511.16 -
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Square D LAP36400MB Molded Case Breakers (MCCBs)
MSRP $3,524.24Surplus $1,127.48SKU: C15-7743 Brand: Square D MPN: LAP36400MB UPC: 78590165038 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-7743
- TS PIK:
- 111091888
- Frame Type:
- L
- Type:
- Thermal Magnetic, Automatic
- Catalog:
- SchneiderElectric-SquareD_08285_3_9_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00138_INST.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 600 V AC, 250 V DC
- Interrupting Rating:
- 42 kA at 240 V AC, 30 kA at 480 V AC, 22 kA at 600 V AC, 10 kA at 125/250 V DC
- Current Rating:
- 400 A
- Terminal Type:
- OFF End Lug
- Data Sheet:
- SchneiderElectric-SquareD_08747_1_2_DATA.pdf
MSRP $3,524.24Surplus $1,127.48 -
Square D LAP36400MB1021 Molded Case Breakers (MCCBs)
MSRP $5,525.00Surplus $609.11SKU: C15-7794 Brand: Square D MPN: LAP36400MB1021 UPC: 78590178894 Shipping Weight: 16.50 lbs. Shipping Height: 9.00 In. Shipping Length: 18.00 In. Shipping Width: 12...- SKU:
- C15-7794
- TS PIK:
- 21261840
- Number of Poles:
- 3
- Current Rating:
- 400 A
- Terminal Type:
- OFF End Lug
- Series:
- 600, LAP
- Frame Type:
- L
- Short Description:
- 600 VAC, 250 VDC, 400 A, 42 kA Interrupt, 3-Pole, Line/Load Lug Terminal, I-Line Mount, AC Shunt Trip, Short Handle, Thermal Magnetic, Molded Case Circuit Breaker
- Interrupting Rating:
- 42 kA at 240 VAC, 30 kA at 480 VAC, 22 kA at 600 VAC, 10 kA at 125/250 VDC
- Data Sheet:
- SchneiderElectric_04399_1_2_DATA.pdf
- Voltage Rating:
- 600 VAC, 250 VDC
- Type:
- Thermal Magnetic, Automatic
- Prop 65 Warning:
- Yes
- Country of Origin:
- United States
- Approval:
- UL 489, CSA C22.2, IEC 60947-2, Federal Specification W-C-375B/GEN
MSRP $5,525.00Surplus $609.11 -
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Square D LCP36600 Molded Case Breakers (MCCBs)
MSRP $6,270.00Surplus $1,490.32SKU: C15-7796 Brand: Square D MPN: LCP36600 UPC: Shipping Weight: 24.15 lbs. Shipping Height: 12.00 In. Shipping Length: 15.00 In. Shipping Width: 12.00 In. Product...- SKU:
- C15-7796
MSRP $6,270.00Surplus $1,490.32 -
Square D LDL36400U31X Molded Case Breakers (MCCBs) EA
MSRP $4,827.00Surplus $3,177.37SKU: C15-10807 Brand: Square D MPN: LDL36400U31X UPC: 78590108330 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-10807
- TS PIK:
- 124983949
- Prop 65 Warning:
- Yes
- Current Rating:
- 400 A
- Frame Type:
- L
- Series:
- LDL36
- Number of Poles:
- 3
- Interrupting Rating:
- 25 kA at 240 VAC, 18 kA at 480 VAC, 14 kA at 600 VAC
- Installation/Operator:
- SchneiderElectric-SquareD_00106_INST.pdf
- Voltage Rating:
- 600 VAC at 50/60 Hz
- Maximum AC Voltage Rating:
- 600 V
- Size:
- 5.51 Inch W x 4.33 Inch D x 13.38 Inch H
- Type:
- Molded Case, Electronic Trip
- Catalog:
- SchneiderElectric_00257_7_38_7_64_CAT.pdf
- Terminal Type:
- Line Lug, Load Lug
- Short Description:
- 600 VAC 50/60 Hz, 400 A, 14 kA Interrupt, 3-Pole, L-Frame, Line/Load Lug Terminal, Unit Mount, Electronic Micrologic LI Trip, Molded Case Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_13832_1_2_DATA.pdf
- Country of Origin:
- United States
- Approval:
- UL 489, CSA C22.2, CE
MSRP $4,827.00Surplus $3,177.37 -
Square D LDL36400U33X Molded Case Breakers (MCCBs) EA
MSRP $5,391.00Surplus $3,064.50SKU: C15-10808 Brand: Square D MPN: LDL36400U33X UPC: 78590195435 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-10808
- TS PIK:
- 127199324
- Country of Origin:
- Mexico
- Prop 65 Warning:
- Yes
MSRP $5,391.00Surplus $3,064.50 -
Square D LDL36600U31X Molded Case Breakers (MCCBs) EA
MSRP $7,109.00Surplus $3,741.06SKU: C15-10809 Brand: Square D MPN: LDL36600U31X UPC: 78590162670 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-10809
- TS PIK:
- 124984906
- Prop 65 Warning:
- Yes
- Country of Origin:
- United States
MSRP $7,109.00Surplus $3,741.06 -
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Square D LE36150LSG Molded Case Breakers (MCCBs) LE 3P 150A 600V 50/60Hz 3Ph
MSRP $19,950.00Surplus $3,994.36SKU: C15-4674 Brand: Square D MPN: LE36150LSG UPC: Shipping Weight: 26.45 lbs. Shipping Height: 8.00 In. Shipping Length: 14.00 In. Shipping Width: 9.00 In. Product...- SKU:
- C15-4674
- Approval:
- UL
- Approval:
- CSA
- Approval:
- IEC
- Amps:
- 150 A
- Installation:
- Plug-On
- Interrupting Rating:
- 100 kA at 240 V AC
- Interrupting Rating:
- 65 Kiloamp at 480 Volt AC
- Interrupting Rating:
- 35 Kiloamp at 600 Volt AC
- Poles:
- 3
- Trip Setting:
- 0
- Type:
- Molded Case
- Type:
- Electronic Trip
- Type:
- Main
- Used On:
- I-Line Panelboard and Switchboard
- Volts:
- 600 VAC
- Short Description:
- 600 VAC, 150 A, 35 kA, 3-Pole, L-Frame, I-Line Mount, Molded Case Circuit Breaker
- Series:
- 600/665/736/830, LE
- Data Sheet:
- images.trad ...
- Voltage Rating:
- 600 V AC
- Catalog:
- SchneiderElectric-SquareD_00935_11_14_11_16_CAT.pdf
- Current Rating:
- 150 A
- Number of Poles:
- 3
MSRP $19,950.00Surplus $3,994.36 -
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Square D LE36175LI Molded Case Breakers (MCCBs)
MSRP $1,500.00Surplus $963.34Square D LE36175LI Molded Case Breakers (MCCBs)​ ARCA SKU: C15-6900 Brand: Square D MPN: LE36175LI UPC: Shipping Weight: 26.50 lbs. Shipping Height: 6.00 In. Shipping...- SKU:
- C15-6900
- Number of Poles:
- 3
MSRP $1,500.00Surplus $963.34 -
Square D LGA36400U31X Molded Case Breakers (MCCBs) LGA 3P 400A 600V 50/60Hz 3Ph
MSRP $5,699.00Surplus $4,788.00SKU: C15-2812 Brand: Square D MPN: LGA36400U31X UPC: 785901644972 Shipping Weight: 15.50 lbs. Shipping Height: 8.00 In. Shipping Length: 15.00 In. Shipping Width: 8...- SKU:
- C15-2812
- Series:
- LG
- Type:
- Thermal Magnetic
- Type:
- Electronic
- Type:
- Standard
- Type:
- Micrologic 3.3
- Type:
- LI
- Approval:
- UL
- Approval:
- CSA
- Volts:
- 600 VAC
- Volts:
- 250 VDC
- Amps:
- 32 A
- Used On:
- I-Line Panelboard and Switchboard
- Poles:
- 3
- Interrupting Rating:
- 18 kA at 600 VAC
- Interrupting Rating:
- 20 kA at 250 Volt DC
- Application:
- Power Distribution
- Short Description:
- 600 VAC, 250 VDC, 400 A, 18 kA, 3-Pole, L-Frame, ABC Phase, Line Lug Load, Thermal Magnetic, Electronic, Standard, Micrologic 3.3, LI
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
- Data Sheet:
- SchneiderElectric_14613_1-3_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01976_INST.pdf
- CAD Drawing:
- SchneiderElectric_29999_1_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 600 VAC
- CAD Drawings:
- SchneiderElectric_29999_1_CAD.pdf
- Current Rating:
- 400 A
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
MSRP $5,699.00Surplus $4,788.00 -
Square D LGA36400U33X Molded Case Breakers (MCCBs)
MSRP $5,969.00Surplus $3,903.93SKU: C15-10811 Brand: Square D MPN: LGA36400U33X UPC: 78590180928 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-10811
- TS PIK:
- 124821618
- Number of Poles:
- 3
- Current Rating:
- 400 A
- Voltage Rating:
- 600 VAC, 250 VDC
- Series:
- LG
- Interrupting Rating:
- 18 kA at 600 VAC, 20 kA at 250 VDC
- Type:
- Thermal Magnetic, Electronic, Standard, Micrologic 3.3 S, LSI
- Installation/Operator:
- SchneiderElectric-SquareD_01976_INST.pdf
- Data Sheet:
- SchneiderElectric_14616_1-3_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
- Short Description:
- 600 VAC, 250 VDC, 400 A, 18 kA, 3-Pole, L-Frame, ABC Phase, Line Lug Load, Thermal Magnetic, Electronic, Standard, Micrologic 3.3 S, LSI, Panelboard Molded Case Circuit Breaker
- Country of Origin:
- United States
- Prop 65 Warning:
- Yes
- Application:
- Power Distribution
- Used On:
- I-Line Panelboard and Switchboard
- Approval:
- UL, CSA
MSRP $5,969.00Surplus $3,903.93 -
Square D LGA36600U33X Molded Case Breakers (MCCBs) EA
MSRP $8,372.00Surplus $4,522.50SKU: C15-10812 Brand: Square D MPN: LGA36600U33X UPC: 78590109337 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-10812
- TS PIK:
- 126337187
- Prop 65 Warning:
- Yes
- Country of Origin:
- Canada
MSRP $8,372.00Surplus $4,522.50 -
Square D LGL36400U31X Molded Case Breakers (MCCBs) EA
MSRP $5,081.00Surplus $4,157.31SKU: C15-10814 Brand: Square D MPN: LGL36400U31X UPC: 78590163760 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-10814
- TS PIK:
- 124984911
- Short Description:
- 600 VAC 50/60 Hz, 400 A, 18 kA Interrupt, 3-Pole, L-Frame, Line/Load Lug Terminal, Unit Mount, Electronic Micrologic LI Trip, Molded Case Circuit Breaker
- Frame Type:
- L
- Prop 65 Warning:
- Yes
- Voltage Rating:
- 600 VAC 50/60 Hertz
- Installation/Operator:
- SchneiderElectric-SquareD_00106_INST.pdf
- Catalog:
- SchneiderElectric_00257_7_38_CAT.pdf
- Type:
- Molded Case
- CAD Drawings:
- SchneiderElectric-SquareD_17741_1_CAD.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13842_1_2_DATA.pdf
- Maximum AC Voltage Rating:
- 600 V
- Terminal Type:
- Load/Line Lug
- Size:
- 5.5 Inch Width x 6.61 Inch Depth x 11.3 Inch Height
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 18 kA at 600 VAC
- Current Rating:
- 400 A
- Number of Poles:
- 3
- Country of Origin:
- United States
- Approval:
- UL, CSA, CE
MSRP $5,081.00Surplus $4,157.31
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