
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 KD3300W Molded Case Breakers (MCCBs)
MSRP $10,104.33Surplus $1,496.87SKU: C15-9597 Brand: Eaton MPN: KD3300W UPC: 78667911746 Shipping Weight: 11.15 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 7.00 In...- SKU:
- C15-9597
- TS PIK:
- 116622652
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, K-FRAME, KD, COMPLETE BREAK
- Country of Origin:
- Dominican Republic
MSRP $10,104.33Surplus $1,496.87 -
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Eaton KD3300WA09 Molded Case Breakers (MCCBs) KD 3P 400A 240V 50/60Hz 3Ph K Frame
MSRP $8,848.45Surplus $3,185.44SKU: C15-4713 Brand: Eaton MPN: KD3300WA09 UPC: Shipping Weight: 10.50 lbs. Shipping Height: 6.00 In. Shipping Length: 10.00 In. Shipping Width: 6.00 In. Product...- SKU:
- C15-4713
- Frame Type:
- K
- Voltage Rating:
- 240 V
- Current Rating:
- 400 A
- Number of Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 Vac, 35 kA at 480 Vac
- Short Description:
- Eaton Series C complete molded case circuit breaker, K-frame, KD, Fixed thermal and magnetic trips, Three-pole, 300A, 600 Vac, 250 Vdc, 65 kA at 240 Vac, 35 kA at 480 Vac, 415-600 Vac or 220-250 Vdc same side w/ right pigtail
MSRP $8,848.45Surplus $3,185.44 -
Eaton KD3350WA13 Molded Case Breakers (MCCBs) KD 3P 350A 600V 50/60Hz 3Ph K Frame EA
MSRP $7,793.44Surplus $1,132.89SKU: C15-3402 Brand: Eaton MPN: KD3350WA13 UPC: 782116630882 Shipping Weight: 11.50 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00 In...- SKU:
- C15-3402
- Series:
- C
- Volts:
- 600 V
- Amps:
- 350 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- K
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, K-FRAME, KD, FIXED THERMAL,
- TS PIK:
- 120877465
- Country of Origin:
- Dominican Republic
MSRP $7,793.44Surplus $1,132.89 -
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Eaton KD3400FK03A06 Molded Case Breakers (MCCBs) KD 3P 400A 600V 50/60Hz 3Ph K Frame
MSRP $5,483.32Surplus $1,666.34SKU: C15-4355 Brand: Eaton MPN: KD3400FK03A06 UPC: Shipping Weight: 12.10 lbs. Shipping Height: 7.00 In. Shipping Length: 12.00 In. Shipping Width: 7.00 In. Product...- SKU:
- C15-4355
- Frame Type:
- K
- Voltage Rating:
- 600 V
- Current Rating:
- 400 A
- Number of Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 Vac, 35 kA at 480 Vac
- Short Description:
- Eaton Series C complete molded case circuit breaker, K-frame, KD, Frame only, Electronic LS trip type, 400A trip rating, Three-pole, 400A, 600 Vac, 250 Vdc, 65 kA at 240 Vac, 35 kA at 480 Vac, 50/60 Hz, 250A
MSRP $5,483.32Surplus $1,666.34 -
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Eaton KD3400KW Molded Case Breakers (MCCBs)
MSRP $1,396.46Surplus $377.05SKU: C15-16748 Brand: Eaton MPN: KD3400KW UPC: 78667902407 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16748
- Approval:
- UL 489, CSA C22.2
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC, 10 kA at 250 VDC (NEMA/UL/CSA), 65 kA at 240 VAC, 40 kA at 380/415 VAC, 10 kA at 250 VDC (IEC)
- Number of Poles:
- 3
- Maximum AC Voltage Rating:
- 600 V
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 10.13 Inch Height
- Frame Type:
- KD
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 35 kA Interrupt, 3-Pole, KD Frame, High Thermal Magnetic, Molded Case, Interchangeable Trip Circuit Breaker without Terminal
- Catalog:
- EatonCorp_00274_V4T2_259_V4T2_260_V4T2_304-V4T2_310_CAT.pdf
- Maximum DC Voltage Rating:
- 250 V
- Terminal Type:
- Line and Load
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Type:
- Thermal Magnetic, Standard Interrupting Capacity, Molded Case
- Current Rating:
- 400 A
MSRP $1,396.46Surplus $377.05 -
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Eaton KD3400T52WPN Molded Case Breakers (MCCBs) KD 3P 400A 600V 50/60Hz 3Ph K Frame
MSRP $14,974.30Surplus $3,995.10SKU: C15-3733 Brand: Eaton MPN: KD3400T52WPN UPC: 782113942926 Shipping Weight: 13.95 lbs. Shipping Height: 8.00 In. Shipping Length: 14.00 In. Shipping Width: 11.00...- SKU:
- C15-3733
- Frame Type:
- K
- Voltage Rating:
- 600 V
- Current Rating:
- 400 A
- Number of Poles:
- 3
- Interrupting Rating:
- 35 kA at 480 Vac 65 kA at 240 Vac
- Short Description:
- KD 3 P 400 A OPTIM 550 LSI ICK 550 PNK
MSRP $14,974.30Surplus $3,995.10 -
Eaton KD3400V Molded Case Breakers (MCCBs)
MSRP $12,081.54Surplus $1,965.04SKU: 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
- Country of Origin:
- Dominican Republic
MSRP $12,081.54Surplus $1,965.04 -
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Eaton KDB3125 Molded Case Breakers (MCCBs) KDB 3P 125A 600V 50/60Hz 3Ph K Frame
MSRP $6,915.40Surplus $2,149.10SKU: C15-3987 Brand: Eaton MPN: KDB3125 UPC: 786679349311 Shipping Weight: 11.60 lbs. Shipping Height: 7.00 In. Shipping Length: 12.00 In. Shipping Width: 7.00 In...- SKU:
- C15-3987
- Series:
- C
- Volts:
- 600 V
- Amps:
- 125 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- K
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, K-FRAME, KDB, FIXED THERMAL
MSRP $6,915.40Surplus $2,149.10 -
Eaton KDB3125FT33W Molded Case Breakers (MCCBs)
MSRP $6,692.15Surplus $1,331.00SKU: C15-12275 Brand: Eaton MPN: KDB3125FT33W UPC: 78668592778 Shipping Weight: 11.90 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00...- SKU:
- C15-12275
- TS PIK:
- 7037
- Short Description:
- EATON SERIES C ELECTRONIC MOLDED CASE CIRCUIT BREAKER, K-FRAME, KDB, DIGITRIP 31
MSRP $6,692.15Surplus $1,331.00 -
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Eaton KDB3225W Molded Case Breakers (MCCBs) KDB 3P 225A 600V 50/60Hz 3Ph K Frame EA
MSRP $7,390.93Surplus $3,102.08SKU: C15-4957 Brand: Eaton MPN: KDB3225W UPC: 786679612101 Shipping Weight: 8.80 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 7.00 In...- SKU:
- C15-4957
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 225 A
- Frame:
- KD
- 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:
- 3
- 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:
- Molded Case
- Volts:
- 600 VAC 50/60 Hertz
- Volts:
- 250 VDC
- Frame Type:
- KD
- Current Rating:
- 225 A
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Number of Poles:
- 3
- Installation/Operator:
- Eaton_00085_INST.pdf
- Maximum DC Voltage Rating:
- 250 V
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Maximum AC Voltage Rating:
- 600 V
MSRP $7,390.93Surplus $3,102.08 -
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Eaton KDB3250 Molded Case Breakers (MCCBs)
MSRP $6,218.42Surplus $1,678.97SKU: C15-19197 Brand: Eaton MPN: KDB3250 UPC: 78667934936 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19197
- Number of Poles:
- 3
- Terminal Type:
- Aluminum Line and Load
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 10.13 Inch Height
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, SERIES C, K-FRAME MOLDED CA
- Maximum AC Voltage Rating:
- 600 V
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Maximum DC Voltage Rating:
- 250 V
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Current Rating:
- 250 A
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC, 10 kA at 250 VDC (NEMA/UL/CSA), 65 kA at 240 VAC, 40 kA at 380/415 VAC, 10 kA at 250 VDC (IEC)
- Frame Type:
- KD
- Approval:
- UL 489, CSA C22.2
- Type:
- Fixed Thermal Magnetic, Molded Case
- Installation/Operator:
- Eaton_00085_INST.pdf
MSRP $6,218.42Surplus $1,678.97 -
Eaton KDB3300 Molded Case Breakers (MCCBs) EA
MSRP $10,522.85Surplus $1,035.65SKU: C15-9686 Brand: Eaton MPN: KDB3300 UPC: 78667934937 Shipping Weight: 11.55 lbs. Shipping Height: 12.00 In. Shipping Length: 7.00 In. Shipping Width: 7.00 In...- SKU:
- C15-9686
- TS PIK:
- 21509810
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 10.13 Inch Height
- Maximum DC Voltage Rating:
- 250 V
- Terminal Type:
- Aluminum Line and Load
- Maximum AC Voltage Rating:
- 600 V
- Type:
- Fixed Thermal Magnetic, Molded Case
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC, 10 kA at 250 VDC (NEMA/UL/CSA), 65 kA at 240 VAC, 40 kA at 380/415 VAC, 10 kA at 250 VDC (IEC)
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Installation/Operator:
- Eaton_00085_INST.pdf
- Frame Type:
- KD
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Current Rating:
- 300 A
- Number of Poles:
- 3
- Country of Origin:
- Dominican Republic
- Approval:
- UL 489, CSA C22.2
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, K-FRAME, KDB, FIXED THERMAL
MSRP $10,522.85Surplus $1,035.65 -
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Eaton KDB3400 Molded Case Breakers (MCCBs)
MSRP $3,687.26Surplus $597.34SKU: C15-19198 Brand: Eaton MPN: KDB3400 UPC: 78667934939 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19198
- Maximum AC Voltage Rating:
- 600 V
- Voltage Rating:
- 600 VAC, 250 VDC
- Series:
- KDB
- Terminal Type:
- Line and Load
- Type:
- Molded Case, Thermal Magnetic
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 400 A, 35 kA, 3-Pole, Line/Load Terminal, KDB Frame, Non-Interchangeable Trip Thermal Magnetic, Molded Case Circuit Breaker with Load and Line Side Terminal
- Maximum DC Voltage Rating:
- 250 V
- Interrupting Rating:
- 65 kA at 240 VAC 50/60 Hertz, 35 kA at 480 VAC 50/60 Hertz, 25 kA at 600 VAC 50/60 Hertz, 10 kA at 250 VDC (NEMA/UL 489/CSA), 65 kA at 240 VAC 50/60 Hertz, 40 kA at 380/415 VAC 50/60 Hertz, 10 kA at 250 VDC (IEC)
- Approval:
- UL
- Catalog:
- Eaton_46579_V4T2_254_V4T2_255_V4T2_258_V4T2_300-V4T2_322_CAT.pdf
- Number of Poles:
- 3
- Current Rating:
- 400 A
- Frame Type:
- KDB
- Installation/Operator:
- Eaton_00085_INST.pdf
MSRP $3,687.26Surplus $597.34 -
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Eaton KDB3400FT32W Molded Case Breakers (MCCBs) KDB 3P 400A 600V 50/60Hz 3Ph K Frame
MSRP $16,961.80Surplus $5,271.93SKU: C15-4048 Brand: Eaton MPN: KDB3400FT32W UPC: 782113712277 Shipping Weight: 11.20 lbs. Shipping Height: 5.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00...- SKU:
- C15-4048
- Series:
- C
- Volts:
- 600 V
- Amps:
- 400 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- K
- Short Description:
- EATON SERIES C ELECTRONIC MOLDED CASE CIRCUIT BREAKER, K-FRAME, KDB, DIGITRIP 31
MSRP $16,961.80Surplus $5,271.93 -
Eaton KDB3400FT36W Molded Case Breakers (MCCBs)
MSRP $10,151.21Surplus $1,693.08SKU: C15-12166 Brand: Eaton MPN: KDB3400FT36W UPC: 78211371237 Shipping Weight: 14.95 lbs. Shipping Height: 7.00 In. Shipping Length: 15.00 In. Shipping Width: 7.00...- SKU:
- C15-12166
- TS PIK:
- 118266524
- Short Description:
- EATON SERIES C ELECTRONIC MOLDED CASE CIRCUIT BREAKER, K-FRAME, KDB, DIGITRIP 31
MSRP $10,151.21Surplus $1,693.08 -
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Eaton KDB3400KX02Y12D08 Molded Case Breakers (MCCBs) KDB 3P 400A 600V 50/60Hz 3Ph K Frame
MSRP $14,278.68Surplus $3,408.00SKU: C15-4140 Brand: Eaton MPN: KDB3400KX02Y12D08 UPC: 786679023105 Shipping Weight: 11.55 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 7...- SKU:
- C15-4140
- Series:
- C
- Volts:
- 600 V
- Amps:
- 400 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- K
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, K-FRAME, KDB, MOLDED CASE S
MSRP $14,278.68Surplus $3,408.00 -
Eaton KDC2400F Molded Case Breakers (MCCBs)
MSRP $16,391.41Surplus $2,733.86SKU: C15-12165 Brand: Eaton MPN: KDC2400F UPC: 78667934212 Shipping Weight: 8.80 lbs. Shipping Height: 7.00 In. Shipping Length: 12.00 In. Shipping Width: 7.00 In...- SKU:
- C15-12165
- TS PIK:
- 13681
- Short Description:
- KDC FR 2P 400A
MSRP $16,391.41Surplus $2,733.86 -
Eaton KDC3125T52W Molded Case Breakers (MCCBs) KDC 3P 125A 120V 50/60Hz 3Ph K Frame
MSRP $21,229.47Surplus $4,686.53SKU: C15-1827 Brand: Eaton MPN: KDC3125T52W UPC: 782114404256 Shipping Weight: 11.84 lbs. Shipping Height: 6.25 In. Shipping Length: 12.25 In. Shipping Width: 6.75 In...- SKU:
- C15-1827
- Series:
- C
- Volts:
- 120 V
- Amps:
- 125 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- K
- Short Description:
- KDC OPTIM 550 LSI 125A BRK W/O TERMINALS
- Current Rating:
- 125 A
- Number of Poles:
- 3
- Country of Origin:
- United States
MSRP $21,229.47Surplus $4,686.53 -
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Eaton KDC3250 Molded Case Breakers (MCCBs)
MSRP $11,291.98Surplus $2,893.18SKU: C15-11710 Brand: Eaton MPN: KDC3250 UPC: Shipping Weight: 9.40 lbs. Shipping Height: 6.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00 In. Product...- SKU:
- C15-11710
- TS PIK:
- 112279616
- Short Description:
- KDC 3P 250A BRKR W/ L&L TERMINALS
MSRP $11,291.98Surplus $2,893.18 -
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Eaton KDC3300 Molded Case Breakers (MCCBs)
MSRP $34,383.72Surplus $0.00SKU: C15-19199 Brand: Eaton MPN: KDC3300 UPC: 78667934168 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19199
- Voltage Rating:
- 600 VAC 50/60 Hertz, 250 VDC
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, K-FRAME, KDC, FIXED THERMAL
- Number of Poles:
- 3
- Type:
- Thermal Magnetic, Ultra High Interrupting Capacity, Molded Case
- Installation/Operator:
- Eaton_00085_INST.pdf
- Maximum DC Voltage Rating:
- 250 V
- Current Rating:
- 300 A
- Size:
- 5.5 Inch Width x 4.1 Inch Depth x 10.13 Inch Height
- Maximum AC Voltage Rating:
- 600 V
- Interrupting Rating:
- 200 kA at 240 VAC, 100 kA at 480 VAC, 65 A at 600 VAC, 22 kA at 250 VDC (NEMA/UL/CSA), 200 kA at 240 VAC, 100 VAC at 380/415 VAC, 22 kA at 250 VDC (IEC)
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_258_V4T2_299-V4T2_322_CAT.pdf
- Terminal Type:
- Aluminum Line and Load
- Frame Type:
- KD
- Approval:
- UL 489, CSA C22.2
MSRP $34,383.72Surplus $0.00
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