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 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 -
Eaton KPEK34 Circuit Breaker Accessories
MSRP $70.00Surplus $22.56Eaton KPEK34 Circuit Breaker Accessories​ ARCA SKU: C15-11328 Brand: Eaton MPN: KPEK34 UPC: Shipping Weight: 0.30 lbs. Shipping Height: 2.00 In. Shipping Length: 6.00 In...- SKU:
- C15-11328
- TS PIK:
- 120215713
- Short Description:
- KD 4 POLE ENDCAP KIT IMPERIAL HARDWARE LINE OR LOAD
MSRP $70.00Surplus $22.56 -
Eaton KPEKM1 Circuit Breaker Accessories EA
MSRP $24.82Surplus $8.19Eaton KPEKM1 Circuit Breaker Accessories EA​ ARCA SKU: C15-5344 Brand: Eaton MPN: KPEKM1 UPC: 78211429184 Shipping Weight: 0.10 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-5344
- Country of Origin:
- Dominican Republic
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY END CAP KIT, ACCESSORIES AND TERMINA
MSRP $24.82Surplus $8.19 -
Eaton KPR1A Circuit Breaker Accessories 12PK
MSRP $95.28Surplus $34.44SKU: C15-5209 Brand: Eaton MPN: KPR1A UPC: 786679110201 Shipping Weight: 0.15 lbs. Shipping Height: 1.00 In. Shipping Length: 6.00 In. Shipping Width: 8.00 In...- SKU:
- C15-5209
- Quantity:
- 12
- Thread Size:
- #10-32 TPI
- Thread Type:
- Imperial
- Used On:
- F Frame Series C Molded Case Circuit Breaker
- Short Description:
- #10-32 TPI, Imperial Thread, Keeper Nut for Circuit Breaker
- TS PIK:
- 21504934
- Country of Origin:
- United States​
MSRP $95.28Surplus $34.44 -
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Eaton KPR1AM Circuit Breaker Accessories Keeper Nut Assembly F Frame
MSRP $9.00Surplus $3.10Eaton KPR1AM Circuit Breaker Accessories Keeper Nut Assembly F Frame​ ARCA SKU: C15-2049 Brand: Eaton MPN: KPR1AM UPC: 786679266113 Shipping Weight: 0.01 Shipping Height: 0.50 In. Shipping...- SKU:
- C15-2049
- Frame:
- F
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TERMINATION HARDWARE, METRIC KEEPER
MSRP $9.00Surplus $3.10 -
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Eaton KPR3A Circuit Breaker Accessories Imperial Keeper Nut K
MSRP $31.00Surplus $14.77Eaton KPR3A Circuit Breaker Accessories Imperial Keeper Nut K​ ARCA SKU: C15-2833 Brand: Eaton MPN: KPR3A UPC: 786679265703 Shipping Weight: 0.30 Shipping Height: 1.00 In. Shipping...- SKU:
- C15-2833
- Type:
- Line End
- Used On:
- Molded Case Circuit Breaker
- Accessory Type:
- General Accessories
- Thread Size:
- 0.375 Inch-16 TPI
- Thread Type:
- Imperial
- Short Description:
- 0.375"-16 TPI, K-Frame, Imperial Thread, Line End
- Catalog:
- EatonCorp-CutlerHammer_00004_167_CAT.pdf
MSRP $31.00Surplus $14.77 -
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Eaton KPR3B Circuit Breaker Accessories Imperial Keeper Nut K Frame
MSRP $31.00Surplus $8.89Eaton KPR3B Circuit Breaker Accessories Imperial Keeper Nut K Frame​ ARCA SKU: C15-3085 Brand: Eaton MPN: KPR3B UPC: 786679265727 Shipping Weight: 0.35 Shipping Height: 1.00 In. Shipping...- SKU:
- C15-3085
- Quantity:
- 3
- Thread Size:
- 0.375 Inch-16 TPI
- Thread Type:
- Imperial
- Type:
- Load Side
- Used On:
- C Series K Frame Molded Case Circuit Breaker
- Specification/Technical:
- Eaton_08689_1_2_SPEC.pdf
- Catalog:
- Eaton_03771_V4T2_414_CAT.pdf
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TERMINATION HARDWARE, IMPERIAL KEEPE
MSRP $31.00Surplus $8.89 -
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Eaton KT2250T Trip Units KT 2P 250A 600V 50/60Hz
MSRP $903.00Surplus $484.02SKU: A13-1217 Brand: Eaton MPN: KT2250T UPC: 786679852323 Shipping Weight: 1.65 lbs. Shipping Height: 5.00 In. Shipping Length: 8.00 In. Shipping Width: 4.00 In...- SKU:
- A13-1217
MSRP $903.00Surplus $484.02 -
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
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