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 KES3125LSI Trip Units KES 3P 125A 600V 50/60Hz
MSRP $5,412.00Surplus $1,558.76SKU: A13-1186 Brand: Eaton MPN: KES3125LSI UPC: 786679271254 Shipping Weight: 2.70 lbs. Shipping Height: 5.00 In. Shipping Length: 7.00 In. Shipping Width: 6.00 In...- SKU:
- A13-1186
- Poles:
- 3
- Volts:
- 600 V
- Amps:
- 125 A
- Type:
- KES
- Series:
- C Series
- Short Description:
- KES DIGI 310 T/U 3P 125A
- Country of Origin:
- United States
MSRP $5,412.00Surplus $1,558.76 -
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Eaton KES3125LSIG Trip Units KES 3P 400A 600V 50/60Hz
MSRP $6,932.40Surplus $1,011.32SKU: A13-1043 Brand: Eaton MPN: KES3125LSIG UPC: 786679271261 Shipping Weight: 3.05 lbs. Shipping Height: 6.00 In. Shipping Length: 7.00 In. Shipping Width: 5.00 In...- SKU:
- A13-1043
- Type:
- Electronic RMS 310 Digitrip LSIG
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 125 A
- Poles:
- 3
- Frame Type:
- K
- Adjustment:
- Independent Short Time Pickup
- Adjustment:
- Delay and Ground Fault
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_254_V4T2_255_V4T2_301_V4T2_303_V4T2_304_CAT.pdf
- Installation/Operator:
- Eaton_00109_INST.pdf
- Short Description:
- KES DIGI 310+ T/U W/GROUND FAULT & LSI 3P 125A
- Number of Poles:
- 3
- Current Rating:
- 125 A
- Country of Origin:
- United States
MSRP $6,932.40Surplus $1,011.32 -
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Eaton KES3250ALSI Trip Units KES 3P 250A 600V 50/60Hz
MSRP $5,198.00Surplus $1,158.22SKU: A13-1223 Brand: Eaton MPN: KES3250ALSI UPC: 786685761312 Shipping Weight: 2.65 lbs. Shipping Height: 5.00 In. Shipping Length: 6.00 In. Shipping Width: 5.00 In...- SKU:
- A13-1223
- Short Description:
- KES 310+ ALSI 3P 250A W/MM
- Poles:
- 3
- Volts:
- 600 V
- Amps:
- 250 A
- Type:
- KES
- Series:
- C Series
MSRP $5,198.00Surplus $1,158.22 -
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Eaton KES3250LSIGB22 Trip Units KES 3P 250A 600V 50/60Hz
MSRP $6,033.00Surplus $1,344.17SKU: A13-1128 Brand: Eaton MPN: KES3250LSIGB22 UPC: 786685761299 Shipping Weight: 2.75 lbs. Shipping Height: 5.00 In. Shipping Length: 6.00 In. Shipping Width: 5.00...- SKU:
- A13-1128
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, KES 310+ ELECTRONIC, 250
- Poles:
- 3
- Volts:
- 600 V
- Amps:
- 250 A
- Type:
- KES
- Series:
- C Series
MSRP $6,033.00Surplus $1,344.17 -
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Eaton KES34000LSI Trip Units KES 3P 250A 600V 50/60Hz
MSRP $1,200.00Surplus $480.00SKU: A13-1291 Brand: Eaton MPN: KES34000LSI UPC: Shipping Weight: 2.50 lbs. Shipping Height: 4.00 In. Shipping Length: 6.00 In. Shipping Width: 4.00 In. Product...- SKU:
- A13-1291
- Poles:
- 3
- Volts:
- 600 V
- Amps:
- 250 A
- Type:
- KES
- Series:
- C Series
MSRP $1,200.00Surplus $480.00 -
Eaton KES3400LSI Trip Units
MSRP $1,816.56Surplus $1,941.80SKU: A13-1210 Brand: Eaton MPN: KES3400LSI UPC: 786679271056 Shipping Weight: 3.00 lbs. Shipping Height: 5.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In...- SKU:
- A13-1210
- Type:
- Electronic
- Frame Type:
- J-K
- Current Rating:
- 400 A
- Number of Poles:
- 3
- Short Description:
- 400 A, 3-Pole, Electronic Adjustable LSI, Molded Case Circuit Breaker Trip Unit
- Catalog:
- Eaton_14666_V4T2_299_V4T2_301_V4T2_303_V4T2_304_CAT.pdf
- Installation/Operator:
- Eaton_00109_INST.pdf
- Specification/Technical:
- Eaton_08649_1_2_SPEC.pdf
- TS PIK:
- 107000622
- Series:
- C
- Country of Origin:
- United States
MSRP $1,816.56Surplus $1,941.80 -
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Eaton KG3300WS43X01 Molded Case Breakers (MCCBs) KG 3P 300A 600V 50/60Hz 3Ph K Frame
MSRP $4,099.00Surplus $1,256.28SKU: C15-1752 Brand: Eaton MPN: KG3300WS43X01 UPC: 782116980512 Shipping Weight: 11.45 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 7.00...- SKU:
- C15-1752
- Series:
- kG
- Type:
- Molded Case
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 600 VAC
- Amps:
- 32 A
- Poles:
- 3
- Interrupting Rating:
- 18 kA at 240 VAC 50/60 Hertz
- Interrupting Rating:
- 14 Kiloamp at 480 Volt AC 50/60 Hertz
- Interrupting Rating:
- 10 Kiloamp at 600 Volt AC 50/60 Hertz (UL 489)
- Interrupting Rating:
- 18/9 Kiloamp at 220/240 Volt AC 50/60 Hertz
- Interrupting Rating:
- 14/7 Kiloamp at 380/415 Volt AC 50/60 Hertz
- Interrupting Rating:
- 18/9/14/7/10/5 Kiloamp at 660/690 Volt AC 50/60 Hertz (IEC)
- Terminal Type:
- Load
- Frame Type:
- kG
- Maximum AC Voltage Rating:
- 600 V
- Short Description:
- 600 VAC, 300 A, 14 kA, 3-Pole, KG Frame, Thermal Magnetic
- Catalog:
- Eaton_46579_V4T2_420_V4T2_471-V4T2_473_CAT.pdf
- Installation/Operator:
- Eaton_00091_INST.pdf
- Voltage Rating:
- 600 VAC
- Current Rating:
- 300 A
- CAD Drawings:
- Eaton_10166_5_CAD.pdf
- Number of Poles:
- 3
MSRP $4,099.00Surplus $1,256.28 -
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Eaton KHMVD06B Circuit Breaker Accessories Vari-Depth Mechanism K & J Frame
MSRP $218.00Surplus $111.04Eaton KHMVD06B Circuit Breaker Accessories Vari-Depth Mechanism K & J Frame​ ARCA SKU: C15-3804 Brand: Eaton MPN: KHMVD06B UPC: 782116048847 Shipping Weight: 3.00 Shipping Height: 4.50 In...- SKU:
- C15-3804
- Frame:
- K & J
- Short Description:
- BLACK HANDLE_ 6@ SHAFT_ K-FRAME
MSRP $218.00Surplus $111.04 -
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Eaton KHMVD24B Circuit Breaker Accessories Vari-Depth Handle K Frame
MSRP $315.00Surplus $113.73Eaton KHMVD24B Circuit Breaker Accessories Vari-Depth Handle K Frame​ ARCA SKU: C15-2228 Brand: Eaton MPN: KHMVD24B UPC: 782116048885 Shipping Weight: 8.00 Shipping Height: 4.25 In...- SKU:
- C15-2228
- Frame:
- K
- Short Description:
- BLK HANDLE_ 24@ SHAFT-K FRAME
MSRP $315.00Surplus $113.73 -
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Eaton KHMVD24R Circuit Breaker Accessories K Frame
MSRP $263.00Surplus $92.92Eaton KHMVD24R Circuit Breaker Accessories K Frame​ ARCA SKU: C15-2137 Brand: Eaton MPN: KHMVD24R UPC: 782116048892 Shipping Weight: 5.00 Shipping Height: 0.00 In. Shipping...- SKU:
- C15-2137
- Frame:
- K
- Short Description:
- RED HANDLE_ 24@ SHAFT-K FRAME
MSRP $263.00Surplus $92.92 -
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Eaton KI3400 Molded Case Breakers (MCCBs) KI 3P 400A 600V 50/60Hz 3Ph K Frame
MSRP $8,500.00Surplus $1,451.24SKU: C15-4001 Brand: Eaton MPN: KI3400 UPC: 786679068946 Shipping Weight: 10.50 lbs. Shipping Height: 6.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00 In...- SKU:
- C15-4001
- Frame Type:
- K
- Voltage Rating:
- 600 V
- Current Rating:
- 400 A
- Number of Poles:
- 3
- Interrupting Rating:
- 20 kA at 480 Vac
- Short Description:
- EATON SERIES C COMPLETE MOLDED CASE CIRCUIT BREAKER
MSRP $8,500.00Surplus $1,451.24 -
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Eaton KLHMVD06B Circuit Breaker Accessories Rotary Handle Kit LG Frame
MSRP $249.00Surplus $128.47Eaton KLHMVD06B Circuit Breaker Accessories Rotary Handle Kit LG Frame​ ARCA SKU: C15-2384 Brand: Eaton MPN: KLHMVD06B UPC: 782116199662 Shipping Weight: 0.00 Shipping Height: 0.00 In...- SKU:
- C15-2384
- Frame:
- LG
- Short Description:
- LG VARI DEPTH 6@ - BLACK (NEMA 1/12)
MSRP $249.00Surplus $128.47 -
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Eaton KLHMVD12B Circuit Breaker Accessories EA
MSRP $284.36Surplus $136.14Eaton KLHMVD12B Circuit Breaker Accessories EA​ ARCA SKU: C15-9247 Brand: Eaton MPN: KLHMVD12B UPC: 00782116199679 Shipping Weight: 3.45 lbs. Shipping Height: 7.00 In. Shipping...- SKU:
- C15-9247
MSRP $284.36Surplus $136.14 -
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Eaton KLHMVD12BX Circuit Breaker Accessories S2 Handle Mechanism LG Frame NEMA 4/4X Black
MSRP $368.04Surplus $144.62Eaton KLHMVD12BX Circuit Breaker Accessories S2 Handle Mechanism LG Frame NEMA 4/4X Black​ ARCA SKU: C15-2373 Brand: Eaton MPN: KLHMVD12BX UPC: 782116199693 Shipping Weight: 4.31 Shipping...- SKU:
- C15-2373
- Frame:
- LG
MSRP $368.04Surplus $144.62 -
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Eaton KLHMVDB Circuit Breaker Accessories Rotary Handle Kit LG Frame Black
MSRP $141.00Surplus $87.26Eaton KLHMVDB Circuit Breaker Accessories Rotary Handle Kit LG Frame Black​ ARCA SKU: C15-2380 Brand: Eaton MPN: KLHMVDB UPC: 786685361727 Shipping Weight: 2.10 Shipping Height: 8.00 In...- SKU:
- C15-2380
- Frame:
- LG
- Short Description:
- VARI-DEPTH ROTARY MECH 8 MM (LG)
MSRP $141.00Surplus $87.26 -
Eaton KPEK1 Circuit Breaker Accessories
MSRP $17.32Surplus $5.58Eaton KPEK1 Circuit Breaker Accessories​ ARCA SKU: C15-2044 Brand: Eaton MPN: KPEK1 UPC: 782114291839 Shipping Weight: 0.10 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-2044
- Series:
- C
- Poles:
- 3
- Short Description:
- END CAP KIT_ 3P FOR F FRAME BREAKER
- TS PIK:
- 115463768
- Country of Origin:
- Dominican Republic
MSRP $17.32Surplus $5.58 -
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Eaton KPEK12 Circuit Breaker Accessories End Cap Kit 2P 225A F Frame
MSRP $15.10Surplus $7.52Eaton KPEK12 Circuit Breaker Accessories End Cap Kit 2P 225A F Frame​ ARCA SKU: C15-2448 Brand: Eaton MPN: KPEK12 UPC: 782114291818 Shipping Weight: 0.15 Shipping Height: 4.00 In. Shipping...- SKU:
- C15-2448
- Type:
- End Cap Kit
- Type:
- Imperial
- Used On:
- Molded Case Circuit Breaker
- Accessory Type:
- General Accessories
- Short Description:
- #10-32 TPI, 2-Pole F-Frame, Imperial
- Catalog:
- Eaton_14666_V4T2_448_CAT.pdf
MSRP $15.10Surplus $7.52 -
Eaton KPEK14 Circuit Breaker Accessories
MSRP $33.17Surplus $11.18Eaton KPEK14 Circuit Breaker Accessories​ ARCA SKU: C15-9082 Brand: Eaton MPN: KPEK14 UPC: 00782114291856 Shipping Weight: 0.20 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-9082
- Country of Origin:
- Dominican Republic
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY END CAP KIT, ACCESSORIES AND TERMINA
MSRP $33.17Surplus $11.18 -
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Eaton KPEK2 Circuit Breaker Accessories End Cap Kit 3P J Frame
MSRP $38.00Surplus $13.89Eaton KPEK2 Circuit Breaker Accessories End Cap Kit 3P J Frame​ ARCA SKU: C15-2451 Brand: Eaton MPN: KPEK2 UPC: 782114291870 Shipping Weight: 0.20 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-2451
- Poles:
- 3
- Frame:
- J
- Short Description:
- END CAP KIT_ 3P FOR J FRAME BREAKER.
MSRP $38.00Surplus $13.89 -
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Eaton KPEK3 Circuit Breaker Accessories 3P EA
MSRP $32.51Surplus $19.38Eaton KPEK3 Circuit Breaker Accessories 3P EA​ ARCA SKU: C15-2444 Brand: Eaton MPN: KPEK3 UPC: 786679045312 Shipping Weight: 0.35 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-2444
- Type:
- End Cap Kit
- Type:
- Imperial
- Used On:
- Molded Case Circuit Breaker
- Accessory Type:
- General Accessories
- Short Description:
- 0.312"-18 TPI, 3-Pole K-Frame, Imperial
- Catalog:
- Eaton_14666_V4T2_448_CAT.pdf
MSRP $32.51Surplus $19.38
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