
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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Eaton KDC3400 Molded Case Breakers (MCCBs) KDC 3P 400A 120V 50/60Hz 3Ph K Frame EA
MSRP $13,726.46Surplus $1,039.41SKU: C15-1845 Brand: Eaton MPN: KDC3400 UPC: 786679341704 Shipping Weight: 13.34 lbs. Shipping Height: 6.00 In. Shipping Length: 14.25 In. Shipping Width: 7.00 In...- SKU:
- C15-1845
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 400 A
- Frame:
- KD
- Interrupting Rating:
- 100 kA at 480 VAC
- Interrupting Rating:
- 65 Amp at 600 Volt AC
- Interrupting Rating:
- 22 Kiloamp at 250 Volt DC (NEMA/UL/CSA)
- Interrupting Rating:
- 100 Volt AC at 380/415 Volt AC
- Interrupting Rating:
- 22 Kiloamp at 250 Volt DC (IEC)
- Maximum AC Voltage:
- 600 V
- Maximum DC Voltage:
- 250 V
- Poles:
- 3
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 10.13 Inch Height
- Terminal Type:
- Aluminum Line and Load
- Type:
- Thermal Magnetic
- Type:
- Ultra High Interrupting Capacity
- Type:
- Molded Case
- Volts:
- 600 VAC 50/60 Hertz
- Volts:
- 250 VDC
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 35 kA Interrupt, 3-Pole, KD Frame, Line and Load Terminal, Thermal Magnetic, Molded Case, Interchangeable Trip Circuit Breaker
- TS PIK:
- 107001722
- Frame Type:
- KD
- Catalog:
- EatonCorp_00274_V4T2_259_V4T2_260_V4T2_304_V4T2_305_V4T2_307_CAT.pdf
- CAD Drawings:
- EatonCorp_00504_1_CAD.pdf
- Number of Poles:
- 3
- Maximum DC Voltage Rating:
- 250 V
- Installation/Operator:
- EatonCorp_00025_INST.pdf
- Current Rating:
- 400 A
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Maximum AC Voltage Rating:
- 600 V
- Country of Origin:
- Dominican Republic
MSRP $13,726.46Surplus $1,039.41 -
Eaton HKD3400K Molded Case Breakers (MCCBs) HKD 3P 400A 600V 50/60Hz 3Ph K Frame EA
MSRP $9,671.00Surplus $2,163.86SKU: C15-2980 Brand: Eaton MPN: HKD3400K UPC: 786679010822 Shipping Weight: 13.00 lbs. Shipping Height: 7.00 In. Shipping Length: 15.00 In. Shipping Width: 7.00 In...- SKU:
- C15-2980
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 400 A
- Frame:
- KD
- Interrupting Rating:
- 65 kA at 480 VAC
- Interrupting Rating:
- 35 Kiloamp at 600 Volt AC
- Interrupting Rating:
- 22 Kiloamp at 250 Volt DC (NEMA/UL/CSA)
- Interrupting Rating:
- 65 Kiloamp at 380/415 Volt AC
- Interrupting Rating:
- 22 Kiloamp at 250 Volt DC (IEC)
- Maximum AC Voltage:
- 600 V
- Maximum DC Voltage:
- 250 V
- Poles:
- 3
- Size:
- 5.49 Inch Width x 4.06 Inch Depth x 10.13 Inch Height
- Terminal Type:
- Line and Load
- Type:
- Thermal Magnetic
- Type:
- High Interrupting Capacity
- Type:
- Molded Case
- Volts:
- 600 VAC 50/60 Hertz
- Volts:
- 250 VDC
- TS PIK:
- 110190360
- Installation/Operator:
- Eaton_00085_INST.pdf
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Short Description:
- EATON SERIES C MOLDED CASE SWITCH, K-FRAME, HKD, MOLDED CASE SWITCH, FIXED THERM
- Current Rating:
- 400 A
- Frame Type:
- KD
- CAD Drawings:
- Eaton_62668_1_CAD.pdf
- Number of Poles:
- 3
- Maximum DC Voltage Rating:
- 250 V
- Maximum AC Voltage Rating:
- 600 V
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Series:
- C
- Country of Origin:
- United States
MSRP $9,671.00Surplus $2,163.86 -
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Eaton CKD3400F Molded Case Breakers (MCCBs)
MSRP $7,004.34Surplus $2,521.57SKU: C15-9948 Brand: Eaton MPN: CKD3400F UPC: 78667934640 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-9948
- TS PIK:
- 107001892
- Short Description:
- EATON SERIES C MOLDED CASE CIRCUIT BREAKER FRAME, K-FRAME, CKD, FRAME ONLY, FIXED THERMAL, FIXED MAGNETIC TRIP TYPE, THREE-POLE, 400A, 600 VAC, 250 VDC, 35 kAIC AT 480 VAC, 25 kAIC AT 600 VAC, 50/60 HZ, 100% RATED
- Number of Poles:
- 3
- Size:
- 7 Inch Width x 6 Inch Depth x 6.3 Inch Height
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC (NEMA/UL/CSA)
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Current Rating:
- 400 A
- Terminal Type:
- Aluminum Standard Pressure Line and Load
- Approval:
- UL 489, CSA C22.2
- Type:
- Fixed Thermal Magnetic, KD Frame, Standard Interrupting Capacity
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Maximum DC Voltage Rating:
- 250 V
- Maximum AC Voltage Rating:
- 600 V
MSRP $7,004.34Surplus $2,521.57 -
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Eaton HKD3400T106W Molded Case Breakers (MCCBs)
MSRP $28,223.00Surplus $7,620.21SKU: C15-16568 Brand: Eaton MPN: HKD3400T106W UPC: 78211352990 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16568
- Current Rating:
- 400 A
- Short Description:
- EATON SERIES C ELECTRONIC MOLDED CASE CIRCUIT BREAKER, K-FRAME, HKD, COMPLETE BREAKER, OPTIM 1050, ELECTRONIC LSIG TRIP, THREE-POLE, 400A, 600 VAC, 250 VDC, 100 kAIC AT 240 VAC, 65 kAIC AT 480 VAC, WITHOUT TERMINALS, 50/60 HZ
- Frame Type:
- KD
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 VAC, 35 kA at 600 VAC, 22 kA at 250 VDC (NEMA/UL/CSA), 100 kA at 240 VAC, 65 kA at 380/415 VAC, 22 kA at 250 VDC (IEC)
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 10.13 Inch Height
- Number of Poles:
- 3
- Maximum DC Voltage Rating:
- 250 V
- Maximum AC Voltage Rating:
- 600 V
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Installation/Operator:
- Eaton_00085_INST.pdf
- Type:
- Electronic OPTIM 1050 Digitrip LSIG, High Interrupting Capacity, Molded Case
- CAD Drawings:
- Eaton_62668_1_CAD.pdf
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Approval:
- UL 489, CSA C22.2
- Terminal Type:
- Aluminum Standard Pressure Line and Load
MSRP $28,223.00Surplus $7,620.21 -
Eaton HKD3400W Molded Case Breakers (MCCBs) 3P 400A
MSRP $11,000.00Surplus $2,242.16SKU: C15-4040 Brand: Eaton MPN: HKD3400W UPC: 78667934294 Shipping Weight: 10.95 lbs. Shipping Height: 6.00 In. Shipping Length: 12.00 In. Shipping Width: 7.00 In...- SKU:
- C15-4040
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 400 A
- Frame:
- KD
- Interrupting Rating:
- 65 kA at 480 VAC
- Interrupting Rating:
- 35 Kiloamp at 600 Volt AC
- Interrupting Rating:
- 22 Kiloamp at 250 Volt DC (NEMA/UL/CSA)
- Interrupting Rating:
- 65 Kiloamp at 380/415 Volt AC
- Interrupting Rating:
- 22 Kiloamp at 250 Volt DC (IEC)
- Maximum AC Voltage:
- 600 V
- Maximum DC Voltage:
- 250 V
- Poles:
- 3
- Size:
- 5.49 Inch Width x 4.06 Inch Depth x 10.13 Inch Height
- Terminal Type:
- Line and Load
- Type:
- Thermal Magnetic
- Type:
- High Interrupting Capacity
- Type:
- Molded Case
- Volts:
- 600 VAC 50/60 Hertz
- Volts:
- 250 VDC
- TS PIK:
- 200192
- Number of Poles:
- 3
- Maximum AC Voltage Rating:
- 600 V
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- CAD Drawings:
- Eaton_62668_1_CAD.pdf
- Installation/Operator:
- Eaton_00085_INST.pdf
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Frame Type:
- KD
- Current Rating:
- 400 A
- Maximum DC Voltage Rating:
- 250 V
- Country of Origin:
- Dominican Republic
MSRP $11,000.00Surplus $2,242.16 -
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Eaton KD2400F Molded Case Breakers (MCCBs) KD 2P 400A 600V 50/60Hz 2Ph K Frame
MSRP $3,433.00Surplus $1,968.40SKU: C15-3848 Brand: Eaton MPN: KD2400F UPC: 786679852361 Shipping Weight: 8.50 lbs. Shipping Height: 6.30 In. Shipping Length: 12.60 In. Shipping Width: 6.90 In...- SKU:
- C15-3848
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 400 A
- Interrupting Rating:
- 35 kA at 480 VAC
- Interrupting Rating:
- 25 Kiloamp at 600 Volt AC
- Interrupting Rating:
- 10 Kiloamp at 250 Volt DC (NEMA/UL/CSA)
- Interrupting Rating:
- 40 Kiloamp at 380/415 Volt AC
- Interrupting Rating:
- 10 Kiloamp at 250 Volt DC (IEC)
- Maximum AC Voltage:
- 600 V
- Maximum DC Voltage:
- 250 V
- Poles:
- 2
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 10.13 Inch Height
- Terminal Type:
- Aluminum Standard Pressure Line and Load
- Type:
- Fixed Thermal Magnetic
- Type:
- KD Frame
- Type:
- Standard Interrupting Capacity
- Volts:
- 600 VAC 50/60 Hertz
- Volts:
- 250 VDC
- TS PIK:
- 21517245
- Short Description:
- EATON SERIES C MOLDED CASE CIRCUIT BREAKER FRAME, K-FRAME, KD, FRAME ONLY, FIXED
- Current Rating:
- 400 A
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Installation/Operator:
- Eaton_00085_INST.pdf
- Maximum DC Voltage Rating:
- 250 V
- Number of Poles:
- 2
- Maximum AC Voltage Rating:
- 600 V
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- CAD Drawings:
- Eaton_10160_1_CAD.pdf
MSRP $3,433.00Surplus $1,968.40 -
Eaton KD3400V Molded Case Breakers (MCCBs)
MSRP $8,875.00Surplus $1,443.50SKU: C15-11897 Brand: Eaton MPN: KD3400V UPC: Shipping Weight: 12.90 lbs. Shipping Height: 6.00 In. Shipping Length: 15.00 In. Shipping Width: 7.00 In. Product...- SKU:
- C15-11897
- TS PIK:
- 115288616
- Type:
- Fixed Thermal Magnetic Trip
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Approval:
- UL
- Frame Type:
- K
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 35 kA, 3-Pole, Line/Load Terminal, KD Frame, Interchangeable Trip, Fixed Thermal, Molded Case Circuit Breaker with 50 Deg C Calibration
- Current Rating:
- 400 A
- Number of Poles:
- 3
- Maximum DC Voltage Rating:
- 250
- Maximum AC Voltage Rating:
- 600 V
- Catalog:
- Eaton_46579_V4T2_254_V4T2_255_V4T2_258_V4T2_300-V4T2_322_CAT.pdf
- Installation/Operator:
- Eaton_00085_INST.pdf
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC
- Terminal Type:
- Line and Load
- CAD Drawings:
- Eaton_10161_1_CAD.pdf
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 5.5 Inch Height
MSRP $8,875.00Surplus $1,443.50 -
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GENERAL ELECTRIC LAL364008041 Molded Case Breakers (MCCBs)
MSRP $8,314.50Surplus $594.10SKU: C15-8738 Brand: GENERAL ELECTRIC MPN: LAL364008041 UPC: 78590115364 Shipping Weight: 14.85 lbs. Shipping Height: 8.00 In. Shipping Length: 15.00 In. Shipping...- SKU:
- C15-8738
- TS PIK:
- 116559307
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Frame Type:
- L
- 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 with Control Wire Terminal
- Interrupting Rating:
- 22 kA at 600 VAC, 10 kA at 250 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_7_37_CAT.pdf
- Current Rating:
- 400 A
- Series:
- LA
- Number of Poles:
- 3
- Size:
- 6 Inch Width x 5.84 Inch Depth x 11 Inch Height
- Data Sheet:
- SchneiderElectric_14570_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01906_INST.pdf
- CAD Drawings:
- SchneiderElectric-SquareD_74682_1_CAD.pdf
- Terminal Type:
- Line/Load Lug
- Maximum DC Voltage Rating:
- 250 V
- Type:
- Thermal Magnetic, Adjustable
- Maximum AC Voltage Rating:
- 600 V
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $8,314.50Surplus $594.10 -
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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
- TS PIK:
- 108425492
- Prop 65 Warning:
- Yes
- Catalog:
- SchneiderElectric-SquareD_32357_7_37_CAT.pdf
- Approval:
- UL, CSA
- Size:
- 6 Inch Width x 5.84 Inch Depth x 11 Inch Height
- Maximum DC Voltage Rating:
- 250 V
- Maximum AC Voltage Rating:
- 600 V
- Series:
- LA
- Frame Type:
- L
- Number of Poles:
- 2
- Type:
- Thermal Magnetic, Adjustable
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 22 kA, 2-Pole, L-Frame, Unit Mount, Line/Load Lug Terminal, Thermal Magnetic, Adjustable, Molded Case Circuit Breaker
- Data Sheet:
- SchneiderElectric_14536_1_2_DATA.pdf
- Terminal Type:
- Line/Load Lug
- Installation/Operator:
- SchneiderElectric-SquareD_01906_INST.pdf
- CAD Drawings:
- SchneiderElectric-SquareD_74682_1_CAD.pdf
- Current Rating:
- 400 A
- Interrupting Rating:
- 22 kA at 600 VAC, 10 kA at 250 VDC
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
MSRP $3,807.00Surplus $1,219.55 -
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 LHL36000M Molded Case Breakers (MCCBs)
MSRP $6,597.00Surplus $1,781.19SKU: C15-16848 Brand: Square D MPN: LHL36000M UPC: 78590104227 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16848
- Prop 65 Warning:
- Yes
- Current Rating:
- 400 A
- Size:
- 6 Inch Width x 5.84 Inch Depth x 11 Inch Height
- Approval:
- UL, CSA
- Catalog:
- SchneiderElectric-SquareD_32357_7_37_CAT.pdf
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 25 kA, 3-Pole, L-Frame, Unit Mount, Line/Load Lug Terminal, Thermal Magnetic, High Interrupting, Automatic Molded Case Switch
- Data Sheet:
- SchneiderElectric_14659_1_2_DATA.pdf
- Type:
- Thermal Magnetic, High Interrupting
- Frame Type:
- L
- Number of Poles:
- 3
- Maximum AC Voltage Rating:
- 600 V
- Interrupting Rating:
- 25 kA at 600 VAC, 50 kA at 250 VDC
- Series:
- LH
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Maximum DC Voltage Rating:
- 250 V
- Installation/Operator:
- SchneiderElectric-SquareD_01978_INST.pdf
- Terminal Type:
- Line/Load Lug
- CAD Drawings:
- SchneiderElectric-SquareD_74682_1_CAD.pdf
MSRP $6,597.00Surplus $1,781.19 -
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Square D LHL36400 Molded Case Breakers (MCCBs)
MSRP $7,598.00Surplus $2,147.63SKU: C15-7770 Brand: Square D MPN: LHL36400 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7770
- TS PIK:
- 108425777
- Series:
- LHL
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Size:
- 6 Inch Width x 5.84 Inch Depth x 11 Inch Height
- CAD Drawings:
- SchneiderElectric-SquareD_74682_1_CAD.pdf
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 25 kA, 3-Pole, L-Frame, Unit Mount, Line/Load Lug Terminal, Thermal Magnetic, High Interrupting, Molded Case Circuit Breaker
- Interrupting Rating:
- 25 kA at 600 VAC, 50 kA at 250 VDC
- Maximum AC Voltage Rating:
- 600 V
- Terminal Type:
- Line/Load Lug
- Type:
- Thermal Magnetic, High Interrupting
- Approval:
- UL, CSA
- Frame Type:
- L
- Catalog:
- SchneiderElectric-SquareD_32357_7_37_CAT.pdf
- Number of Poles:
- 3
- Current Rating:
- 400 A
- Prop 65 Warning:
- Yes
- Data Sheet:
- SchneiderElectric-SquareD_69839_1_2_DATA.pdf
- Maximum DC Voltage Rating:
- 250 V
MSRP $7,598.00Surplus $2,147.63
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