Circuit Breakers
Circuit Breakers - Source rare and hard-to-find breakers with ease
At ARCA Supply, we know that circuit breakers are essential to safeguarding electrical systems, protecting them from overloads and short circuits. Whether you're managing a commercial facility, maintaining industrial equipment, or working on residential projects, having the right circuit breakers ensures uninterrupted performance and peace of mind.
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.
Explore Our Circuit Breaker Categories:
- Air Circuit Breakers (ACBs): Ideal for large-scale industrial applications, ACBs provide superior protection in high-current scenarios.
- Din Rail Mounted Circuit Breakers: These breakers are designed for quick installation in compact spaces, making them perfect for modular setups.
- Main Breakers: As a crucial part of any electrical system, main breakers ensure that circuits are effectively managed and protected from faults.
- Miniature Circuit Breakers (MCBs): Designed for residential and commercial use, MCBs are essential for protecting lower power circuits from damage.
- Molded Case Breakers (MCCBs): When high current protection is needed, MCCBs offer robust and durable performance.
- Motor Circuit Protectors (MCPs): Specifically engineered to protect motors, MCPs offer fast response times to prevent equipment damage.
- Circuit Breaker Accessories: From trip units to mounting kits, we stock a variety of accessories to enhance the functionality of your breakers.
Leading Brands We Carry:
At ARCA Supply, we carry a comprehensive lineup of top brands to ensure you get the best quality and reliability. Our inventory includes trusted names such as Eaton, Square D, Siemens, and General Electric. With over 2,600 Eaton products and hundreds from brands like ABB, Schneider Electric, and Leviton, you can be confident in finding exactly what you need.
Choose the Right Circuit Breaker:
When selecting a circuit breaker, factors such as current rating, voltage rating, and mounting style are critical. Our range includes options for:
- Current Ratings: From 15A to 600A, ensuring the right protection for every application.
- Voltage Ratings: With options ranging from 120V to 600V for both AC and DC applications.
- Mounting Types: Choose from plug-on, DIN rail, or bolt-on mountings to match your installation requirements.
Why Choose ARCA Supply?
As a trusted distributor specializing in hard-to-find electrical components, we ensure that our circuit breakers meet the highest industry standards. Our commitment to the circular economy also means that unsold products are responsibly recycled, helping to reduce waste while supporting your projects.
Explore our extensive collection of circuit breakers today and find the perfect solution for your electrical system’s needs.
- Air Circuit Breakers (ACBs)
- Din Rail Mounted Circuit Breakers
- Main Breakers
- Miniature Circuit Breakers (MCBs)
- Molded Case Breakers (MCCBs)
- Motor Circuit Protector (MCPs)
- Circuit Breaker Accessories
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Eaton KT4400T Circuit Breaker Accessories
MSRP $2,733.49Surplus $655.40SKU: 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
MSRP $2,733.49Surplus $655.40 -
Eaton KYK4 Circuit Breaker Accessories
MSRP $454.00Surplus $352.42SKU: C15-3909 Brand: Eaton MPN: KYK4 UPC: 786679395103 Shipping Weight: 1.00 lbs. Shipping Height: 2.00 In. Shipping Length: 7.00 In. Shipping Width: 5.00 In...- SKU:
- C15-3909
- Frame:
- J-K
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY KEY INTERLOCK KIT, KEY INTERLOCK KIT
- TS PIK:
- 107002735
- Country of Origin:
- United States
MSRP $454.00Surplus $352.42 -
Eaton KYK6 Circuit Breaker Accessories
MSRP $767.12Surplus $185.25SKU: C15-11585 Brand: Eaton MPN: KYK6 UPC: 78667942050 Shipping Weight: 0.65 lbs. Shipping Height: 5.00 In. Shipping Length: 5.00 In. Shipping Width: 5.00 In...- SKU:
- C15-11585
- TS PIK:
- 107003280
- Country of Origin:
- United States
MSRP $767.12Surplus $185.25 -
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
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 $3,055.63SKU: 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 $3,055.63 -
Eaton LDB3400 Molded Case Breakers (MCCBs)
MSRP $17,271.74Surplus $2,939.46SKU: C15-11515 Brand: Eaton MPN: LDB3400 UPC: 78667914792 Shipping Weight: 21.10 lbs. Shipping Height: 8.00 In. Shipping Length: 13.00 In. Shipping Width: 11.00 In...- SKU:
- C15-11515
- TS PIK:
- 106998276
MSRP $17,271.74Surplus $2,939.46 -
Eaton LDB3450 Molded Case Breakers (MCCBs)
MSRP $14,787.00Surplus $5,323.32SKU: 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 $5,323.32 -
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 $8,372.10SKU: 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 $8,372.10 -
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 LGE3400FAG Molded Case Breakers (MCCBs) EA
MSRP $5,287.00Surplus $1,020.20SKU: C15-9719 Brand: Eaton MPN: LGE3400FAG UPC: Shipping Weight: 13.90 lbs. Shipping Height: 8.00 In. Shipping Length: 13.00 In. Shipping Width: 9.00 In. Product...- SKU:
- C15-9719
- TS PIK:
- 120147104
- Frame Type:
- LG
- Maximum AC Voltage Rating:
- 600 V
- Terminal Type:
- Line and Load
- Size:
- 5.48 Inch Width x 4.09 Inch Depth x 10.13 Inch Height
- Voltage Rating:
- 240/415/480/600 VAC 50/60 Hertz
- Number of Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 415/480 VAC, 18 kA at 600 VAC
- Type:
- Fixed Thermal, Adjustable Magnetic
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_142-V4T2_144_V4T2_185-V4T2_202_CAT.pdf
- Installation/Operator:
- Eaton_00239_INST.pdf
- Current Rating:
- 400 A
- Country of Origin:
- United States
MSRP $5,287.00Surplus $1,020.20 -
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 $129.78SKU: 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 $129.78 -
Eaton LGH3500FAG Molded Case Breakers (MCCBs) LGH 3P 500A 600V 50/60Hz 3Ph L Frame
MSRP $17,000.00Surplus $2,037.64SKU: 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 $2,037.64 -
Eaton LGH3600FAW Molded Case Breakers (MCCBs) 3P
MSRP $12,150.00Surplus $1,780.02SKU: 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 $1,780.02 -
Eaton LGH3630NN Molded Case Breakers (MCCBs)
MSRP $11,500.00Surplus $1,610.71SKU: 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 $1,610.71 -
Eaton LGH3630NNWC Molded Case Breakers (MCCBs) LGH 3P 600A 600V 50/60Hz 3Ph L Frame
MSRP $8,265.00Surplus $2,510.50SKU: C15-2755 Brand: Eaton MPN: LGH3630NNWC UPC: 786685004617 Shipping Weight: 17.05 lbs. Shipping Height: 7.00 In. Shipping Length: 17.00 In. Shipping Width: 9.00 In...- SKU:
- C15-2755
- Series:
- G
- Volts:
- 600 V
- Amps:
- 600 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- L
- Short Description:
- Molded case circuit breaker accessory frame, Frame only, 630 A, 100 kAIC at 240 V, 70 kAIC at 415 V, 65 kAIC at 480 V, 35 kAIC at 600 V, Three-pole, Frame only (no trip), Frame J-K, Series G
- Current Rating:
- 630 A
- Interrupting Rating:
- 100 kA
- Frame Type:
- J-k
- Number of Poles:
- 3
- Voltage Rating:
- 600 VAC
MSRP $8,265.00Surplus $2,510.50 -
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 $83.96SKU: 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
MSRP $169.00Surplus $83.96