
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 KT3175T Trip Units KT 3P 175A 600V 50/60Hz
MSRP $1,550.00Surplus $579.88SKU: A13-1235 Brand: Eaton MPN: KT3175T UPC: 786679266038 Shipping Weight: 1.50 lbs. Shipping Height: 6.00 In. Shipping Length: 7.00 In. Shipping Width: 5.00 In...- SKU:
- A13-1235
- Adjustment:
- Magnetic Trip
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 175 A
- Frame:
- K
- Poles:
- 3
- Type:
- Thermal Magnetic
- Specification/Technical:
- Eaton_08714_1_2_SPEC.pdf
- Frame Type:
- K
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_299_V4T2_300_V4T2_302_CAT.pdf
- Current Rating:
- 175 A
- Number of Poles:
- 3
- Country of Origin:
- Dominican Republic
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, TRIP UNIT, 175 A, THREE-P
MSRP $1,550.00Surplus $579.88 -
Eaton KT3200T Molded Case Breakers (MCCBs) EA
MSRP $1,645.00Surplus $689.81SKU: C15-9785 Brand: Eaton MPN: KT3200T UPC: 78667926604 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-9785
- TS PIK:
- 21507990
- Current Rating:
- 200 A
- Type:
- Thermal Magnetic
- Frame Type:
- K
- Number of Poles:
- 3
- Series:
- C
- Catalog:
- Eaton_27487_V4T2_299_V4T2_300_V4T2_302_CAT.pdf
- Short Description:
- 200 A, 3-Pole, K Frame, Thermal Magnetic, Molded Case Circuit Breaker Trip Unit
- Country of Origin:
- Dominican Republic
MSRP $1,645.00Surplus $689.81 -
Eaton KT3250T Trip Units
MSRP $1,216.84Surplus $169.94SKU: A13-1048 Brand: Eaton MPN: KT3250T UPC: 786679266069 Shipping Weight: 1.60 lbs. Shipping Height: 4.00 In. Shipping Length: 6.00 In. Shipping Width: 4.00 In...- SKU:
- A13-1048
- Series:
- C, KT
- Type:
- Thermal Magnetic
- Approval:
- UL
- Amps:
- 250 A
- Poles:
- 3
- Frame Type:
- K
- Accessory Type:
- Trip Unit
- Adjustment:
- Magnetic Trip
- Short Description:
- 250 A, 3-Pole, K Frame, Thermal Magnetic
- Catalog:
- Eaton_27487_V4T2_299_V4T2_300_V4T2_302_CAT.pdf
- TS PIK:
- 21507992
- Number of Poles:
- 3
- Current Rating:
- 250 A
- Country of Origin:
- Dominican Republic
MSRP $1,216.84Surplus $169.94 -
Eaton KT4400T Circuit Breaker Accessories
MSRP $2,733.49Surplus $651.06SKU: C15-11239 Brand: Eaton MPN: KT4400T UPC: 78667922337 Shipping Weight: 2.65 lbs. Shipping Height: 6.00 In. Shipping Length: 9.00 In. Shipping Width: 6.00 In...- SKU:
- C15-11239
- TS PIK:
- 106999701
- Country of Origin:
- Dominican Republic
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, EATON MOLDED CASE CIRCUIT
MSRP $2,733.49Surplus $651.06 -
Eaton KT4400TA Trip Units
MSRP $2,416.79Surplus $643.89SKU: A13-1609 Brand: Eaton MPN: KT4400TA UPC: 78667919778 Shipping Weight: 2.65 lbs. Shipping Height: 6.00 In. Shipping Length: 9.00 In. Shipping Width: 6.00 In...- SKU:
- A13-1609
- TS PIK:
- 106999508
MSRP $2,416.79Surplus $643.89 -
Eaton L3RTWK Circuit Breaker Accessories
MSRP $49.25Surplus $25.45Eaton L3RTWK Circuit Breaker Accessories​ ARCA SKU: C15-3600 Brand: Eaton MPN: L3RTWK UPC: 782116157419 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-3600
- Type:
- End Cap Kit
- Type:
- Metric
- Used On:
- G-Series J/K/LG Frame Molded Case Circuit Breaker
- Specification/Technical:
- Eaton_60849_1_2_SPEC.pdf
- TS PIK:
- 120338269
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_518_CAT.pdf
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY END CAP KIT, END CAP KIT, THREE-POLE
- Country of Origin:
- United States
MSRP $49.25Surplus $25.45 -
Eaton LCL400 Circuit Breaker Accessories EA
MSRP $5,702.20Surplus $861.43SKU: C15-9460 Brand: Eaton MPN: LCL400 UPC: Shipping Weight: 0.05 lbs. Shipping Height: 2.00 In. Shipping Length: 3.00 In. Shipping Width: 3.00 In. Product...- SKU:
- C15-9460
- Country of Origin:
- Mexico
- Short Description:
- UL CLASS L TIME DELAY600V
MSRP $5,702.20Surplus $861.43 -
Eaton LD2500 Molded Case Breakers (MCCBs) LD 2P 500A 600V 50/60Hz 2Ph L Frame
MSRP $14,656.00Surplus $2,516.65SKU: C15-3414 Brand: Eaton MPN: LD2500 UPC: 786679023143 Shipping Weight: 19.75 lbs. Shipping Height: 8.00 In. Shipping Length: 13.00 In. Shipping Width: 11.00 In...- SKU:
- C15-3414
- Series:
- C
- Volts:
- 600 V
- Amps:
- 500 A
- Poles:
- 2
- Frequency Rating:
- 50/60 Hz
- Frame:
- L
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER, L-FRAME, LD, COMPLETE BREAK
MSRP $14,656.00Surplus $2,516.65 -
Eaton LD3450 Molded Case Breakers (MCCBs) LD 3P 450A 600V 50/60Hz 3Ph L Frame
MSRP $15,000.00Surplus $4,883.76SKU: C15-3475 Brand: Eaton MPN: LD3450 UPC: 786679015612 Shipping Weight: 19.85 lbs. Shipping Height: 8.00 In. Shipping Length: 18.00 In. Shipping Width: 12.00 In...- SKU:
- C15-3475
- Frame Type:
- LD
- Voltage Rating:
- 600 VAC
- Current Rating:
- 32 A
- Number of Poles:
- 3
- Interrupting Rating:
- 35 kA at 480 VAC
- Type:
- Molded Case
- Maximum AC Voltage Rating:
- 600 VAC
- Maximum DC Voltage Rating:
- 250 VDC
- Terminal Type:
- Aluminum/Copper Standard Pressure Line and Load Terminal
- Size:
- 8.25 Inch W x 4.06 Inch D x 10.75 Inch H
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 450 A, 35 kA, 3-Pole, LD Frame, Thermal Magnetic, Molded Case
- Catalog:
- Eaton_27487_V4T2_254_V4T2_255_V4T2_323_V4T2_324_CAT.pdf
- Installation/Operator:
- Eaton_00486_INST.pdf
- Specification/Technical:
- Eaton_08805_1_2_SPEC.pdf
- Series:
- C
- Approval:
- UL 489, CE
MSRP $15,000.00Surplus $4,883.76 -
Eaton LDB3450 Molded Case Breakers (MCCBs)
MSRP $14,787.00Surplus $5,215.63SKU: C15-11896 Brand: Eaton MPN: LDB3450 UPC: Shipping Weight: 21.05 lbs. Shipping Height: 8.00 In. Shipping Length: 11.00 In. Shipping Width: 14.00 In. Product...- SKU:
- C15-11896
- TS PIK:
- 106998277
MSRP $14,787.00Surplus $5,215.63 -
Eaton LDC3600F Molded Case Breakers (MCCBs) EA
MSRP $18,955.09Surplus $4,453.54SKU: C15-9270 Brand: Eaton MPN: LDC3600F UPC: Shipping Weight: 16.70 lbs. Shipping Height: 6.00 In. Shipping Length: 12.00 In. Shipping Width: 9.00 In. Product...- SKU:
- C15-9270
- Voltage Rating:
- 600 VAC
- Current Rating:
- 300 to 600 A
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 600 A, 3-Pole, 200/100 kA, L Frame, Fixed Thermal Magnetic, LDC, Molded Case Circuit Breaker Frame
- Interrupting Rating:
- 50 kA at 600 VAC
- Number of Poles:
- 3
- Installation/Operator:
- Eaton_00486_INST.pdf
- Catalog:
- Eaton_14666_V4T2_326_V4T2_327_CAT.pdf
- Series:
- LD
- Type:
- Thermal Magnetic
- Country of Origin:
- United States
MSRP $18,955.09Surplus $4,453.54 -
Eaton LDC3600T107W Molded Case Breakers (MCCBs) LDC 3P 600A 600V 50/60Hz 3Ph L Frame Neutral Current Sensor
MSRP $40,270.00Surplus $6,054.42SKU: C15-3225 Brand: Eaton MPN: LDC3600T107W UPC: 786679054949 Shipping Weight: 25.95 lbs. Shipping Height: 8.00 In. Shipping Length: 14.00 In. Shipping Width: 14.00...- SKU:
- C15-3225
- Volts:
- 600 V
- Amps:
- 600 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- L
- General Accessories:
- Neutral Current Sensor
- Short Description:
- EATON SERIES C ELECTRONIC MOLDED CASE CIRCUIT BREAKER, L-FRAME, LDC, COMPLETE BR
- Series:
- C
MSRP $40,270.00Surplus $6,054.42 -
Eaton LG3DOM Circuit Breaker Accessories Drawout Cassette 3P 600V EA
MSRP $2,300.00Surplus $349.45SKU: C15-2123 Brand: Eaton MPN: LG3DOM UPC: 786685004693 Shipping Weight: 20.95 lbs. Shipping Height: 16.00 In. Shipping Length: 15.00 In. Shipping Width: 12.00 In...- SKU:
- C15-2123
- Volts:
- 600 V
- Poles:
- 3
- Short Description:
- LG 3 POLE DRAWOUT CASSETTE
- TS PIK:
- 122754018
- Country of Origin:
- China
MSRP $2,300.00Surplus $349.45 -
Eaton LGE3500FAG Molded Case Breakers (MCCBs) LGE 3P 500A 600V 50/60Hz 3Ph L Frame
MSRP $9,975.00Surplus $1,574.57SKU: C15-2691 Brand: Eaton MPN: LGE3500FAG UPC: 782116142415 Shipping Weight: 12.40 lbs. Shipping Height: 6.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00 In...- SKU:
- C15-2691
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Approval:
- CE
- Amps:
- 500 A
- Frame:
- LG
- Interrupting Rating:
- 65 kA at 240 VAC
- Interrupting Rating:
- 35 Kiloamp at 415/480 Volt AC
- Interrupting Rating:
- 18 Kiloamp at 600 Volt AC
- Maximum AC Voltage:
- 600 V
- Poles:
- 3
- Size:
- 5.48 Inch Width x 4.09 Inch Depth x 10.13 Inch Height
- Terminal Type:
- Line and Load
- Type:
- Fixed Thermal
- Type:
- Adjustable Magnetic
- Volts:
- 240/415/480/600 VAC 50/60 Hertz
- TS PIK:
- 120147105
- Number of Poles:
- 3
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_142-V4T2_144_V4T2_185-V4T2_202_CAT.pdf
- Maximum AC Voltage Rating:
- 600 V
- Voltage Rating:
- 240/415/480/600 VAC 50/60 Hertz
- Installation/Operator:
- Eaton_00239_INST.pdf
- Current Rating:
- 500 A
- Frame Type:
- LG
- Short Description:
- EATON SERIES G MOLDED CASE CIRCUIT BREAkER, LG-FRAME, LG, FIXED THERMAL, ADJUSTA
- Series:
- G
- Country of Origin:
- United States
MSRP $9,975.00Surplus $1,574.57 -
Eaton LGFCT400 Circuit Breaker Accessories
MSRP $1,774.00Surplus $116.78SKU: S05-1087 Brand: Eaton MPN: LGFCT400 UPC: 782116938148 Shipping Weight: 2.55 lbs. Shipping Height: 4.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In...- SKU:
- S05-1087
- Type:
- Sensor
- Type:
- Neutral Current
- Type:
- External
- Used On:
- LSG/LSIG C/G Series J/K Frame Digitrip 310+ Electronic Trip Unit Molded Case Circuit Breaker
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_190_V4T2_195_V4T2_304_CAT.pdf
- TS PIK:
- 121524822
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY INTERCHANGABLE TRIP UNITS, NEUTRAL C
- Country of Origin:
- United States
MSRP $1,774.00Surplus $116.78 -
Eaton LGH3500FAG Molded Case Breakers (MCCBs) LGH 3P 500A 600V 50/60Hz 3Ph L Frame
MSRP $17,000.00Surplus $1,491.39SKU: C15-3967 Brand: Eaton MPN: LGH3500FAG UPC: Shipping Weight: 16.80 lbs. Shipping Height: 8.00 In. Shipping Length: 16.00 In. Shipping Width: 8.00 In. Product...- SKU:
- C15-3967
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Approval:
- CE
- Amps:
- 500 A
- Frame:
- LG
- Interrupting Rating:
- 100 kA at 240 VAC
- Interrupting Rating:
- 70 Kiloamp at 415 Volt AC
- Interrupting Rating:
- 65 Kiloamp at 480 Volt AC
- Interrupting Rating:
- 35 Kiloamp at 600 Volt AC
- Maximum AC Voltage:
- 600 V
- Poles:
- 3
- Size:
- 5.48 Inch Width x 4.09 Inch Depth x 10.13 Inch Height
- Terminal Type:
- Line and Load
- Type:
- Fixed Thermal
- Type:
- Adjustable Magnetic
- Volts:
- 240/415/480/600 VAC 50/60 Hertz
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 500 A, 3-Pole, LG Frame, Line and Load Terminal, Fixed Thermal, Adjustable Magnetic, Molded Case, Non-Interchangeable Trip Circuit Breaker
- Maximum AC Voltage Rating:
- 600 V
- Number of Poles:
- 3
- Frame Type:
- LG
- Current Rating:
- 500 A
- Voltage Rating:
- 240/415/480/600 VAC 50/60 Hertz
- Catalog:
- EatonCorp_00274_V4T2_147-V4T2_149_V4T2_190-V4T2_207_CAT.pdf
- Installation/Operator:
- EatonCorp_00030_INST.pdf
- Country of Origin:
- United States
MSRP $17,000.00Surplus $1,491.39 -
Eaton LGH3600FAW Molded Case Breakers (MCCBs) 3P
MSRP $12,150.00Surplus $1,427.87SKU: C15-3060 Brand: Eaton MPN: LGH3600FAW UPC: 78211614179 Shipping Weight: 16.00 lbs. Shipping Height: 8.00 In. Shipping Length: 12.00 In. Shipping Width: 8.00 In...- SKU:
- C15-3060
- Series:
- G
- Volts:
- 690 V
- Amps:
- 600 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- L
- Short Description:
- EATON SERIES G MOLDED CASE CIRCUIT BREAKER, LG-FRAME, LG, FIXED THERMAL, ADJUSTA
- TS PIK:
- 120098164
- Country of Origin:
- United States
MSRP $12,150.00Surplus $1,427.87 -
Eaton LGH3630NN Molded Case Breakers (MCCBs)
MSRP $11,500.00Surplus $1,191.70SKU: C15-1822 Brand: Eaton MPN: LGH3630NN UPC: 78211633618 Shipping Weight: 14.30 lbs. Shipping Height: 5.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00 In...- SKU:
- C15-1822
- Frame Type:
- LG
- Voltage Rating:
- 415/480 V
- Current Rating:
- 32 A
- Number of Poles:
- 3
- Type:
- Molded Case
- Size:
- 4.09 Inch L x 5.48 Inch W x 10.13 H
- Short Description:
- 415/480 V, 630 A, 3-Pole, LG
- Catalog:
- Eaton_27487_V4T2_185_V4T2_186_V4T2_189_CAT.pdf
- Installation/Operator:
- Eaton_00239_INST.pdf
- Specification/Technical:
- Eaton_39628_1_2_SPEC.pdf
- TS PIK:
- 120602131
- Series:
- L
- Country of Origin:
- United States
- Approval:
- UL, CSA, IEC
MSRP $11,500.00Surplus $1,191.70 -
Eaton LGS3350FAG Molded Case Breakers (MCCBs) LGS 3P 350A 600V 50/60Hz 3Ph L Frame
MSRP $6,450.00Surplus $1,478.83SKU: C15-3951 Brand: Eaton MPN: LGS3350FAG UPC: 782116142576 Shipping Weight: 14.15 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00 In...- SKU:
- C15-3951
- Frame Type:
- LG
- Voltage Rating:
- 600 V
- Current Rating:
- 350 A
- Number of Poles:
- 3
- Interrupting Rating:
- 85 kA at 240 Vac 50 kA at 480 Vac 25 kA at 600 Vac
- Short Description:
- LGS 3P 350A BKR_ FIX THERM/ADJ MAG TRIP
- Country of Origin:
- United States
MSRP $6,450.00Surplus $1,478.83 -
Eaton LGTEW3 Circuit Breaker Accessories
MSRP $169.00Surplus $77.96SKU: C15-11693 Brand: Eaton MPN: LGTEW3 UPC: 78211612289 Shipping Weight: 0.40 lbs. Shipping Height: 2.00 In. Shipping Length: 3.00 In. Shipping Width: 1.00 In...- SKU:
- C15-11693
- TS PIK:
- 119984719
- Country of Origin:
- China
- Short Description:
- TERMINAL SPREADER KIT FOR LG 3P BKR_ LINE OR LOAD MOUNT
MSRP $169.00Surplus $77.96
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.