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
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- Qty in Cart
- Price
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Eaton LT340032 Molded Case Breakers (MCCBs)
MSRP $3,005.00Surplus $811.35SKU: C15-16875 Brand: Eaton MPN: LT340032 UPC: 78211636592 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16875
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, TRIP UNIT, 400 A, THREE-POLE, 310+ ELECTRONIC LSI, LT, FRAME J-K, SERIES C
MSRP $3,005.00Surplus $811.35 -
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Eaton LT340033 Trip Units
MSRP $2,738.97Surplus $713.94SKU: A13-1606 Brand: Eaton MPN: LT340033 UPC: Shipping Weight: 2.55 lbs. Shipping Height: 5.00 In. Shipping Length: 9.00 In. Shipping Width: 5.00 In. Product...- SKU:
- A13-1606
- TS PIK:
- 120877413
- Country of Origin:
- United States
MSRP $2,738.97Surplus $713.94 -
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Eaton LT3400FA Molded Case Breakers (MCCBs)
Surplus $2,100.00SKU: A13-1181 Brand: Eaton MPN: LT3400FA UPC: 78211633623 Shipping Weight: 2.00 lbs. Shipping Height: 5.00 In. Shipping Length: 9.00 In. Shipping Width: 5.00 In...- SKU:
- A13-1181
- Adjustment:
- Magnetic Trip
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 400 A
- Frame:
- LG
- Poles:
- 3
- Type:
- Fixed Thermal
- Type:
- Adjustable Magnetic
- Specification/Technical:
- Eaton_62019_1_2_SPEC.pdf
- TS PIK:
- 120602136
- Number of Poles:
- 3
- Current Rating:
- 400 A
- Frame Type:
- LG
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, TRIP UNIT, 400 A, THREE-POLE, FIXED THERMAL, ADJUSTABLE MAGNETIC, LT, FRAME LG, SERIES G
Surplus $2,100.00 -
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Eaton LT3450T Trip Units LT 3P 450A 600V 50/60Hz
MSRP $3,377.00Surplus $1,427.09SKU: A13-1042 Brand: Eaton MPN: LT3450T UPC: 786679222942 Shipping Weight: 2.75 lbs. Shipping Height: 5.70 In. Shipping Length: 8.50 In. Shipping Width: 5.30 In...- SKU:
- A13-1042
- Series:
- C, LT
- Type:
- Thermal Magnetic
- Amps:
- 450 A
- Poles:
- 3
- Frame Type:
- LD
- Frame Type:
- HLD
- Frame Type:
- LDC
- Short Description:
- 450 A, 3-Pole, LD/HLD/LDC Frame, Thermal Magnetic
- Catalog:
- Eaton_27487_V4T2_324_V4T2_326_V4T2_484_CAT.pdf
- Installation/Operator:
- Eaton_00487_INST.pdf
- Current Rating:
- 450 A
- Number of Poles:
- 3
MSRP $3,377.00Surplus $1,427.09 -
Eaton LT3500T Molded Case Breakers (MCCBs) 3P 500A
MSRP $3,692.79Surplus $1,194.32SKU: A13-1036 Brand: Eaton MPN: LT3500T UPC: 786679580073 Shipping Weight: 2.80 lbs. Shipping Height: 5.60 In. Shipping Length: 8.50 In. Shipping Width: 5.40 In...- SKU:
- A13-1036
- Adjustment:
- Magnetic Trip
- Approval:
- UL
- Approval:
- CE
- Amps:
- 500 A
- Frame:
- LD
- Frame:
- HLD
- Frame:
- LDC
- Poles:
- 3
- Type:
- Thermal Magnetic
- Short Description:
- 500 A, 3-Pole, LD/HLD/LDC Frame, Thermal Magnetic, Molded Case Circuit Breaker Trip Unit
- Specification/Technical:
- Eaton_08951_1_2_SPEC.pdf
- Installation/Operator:
- Eaton_00487_INST.pdf
- TS PIK:
- 21513707
- Frame Type:
- LD, HLD, LDC
- Number of Poles:
- 3
- Current Rating:
- 500 A
- Catalog:
- Eaton_27487_V4T2_324_V4T2_326_V4T2_484_CAT.pdf
- Country of Origin:
- United States
MSRP $3,692.79Surplus $1,194.32 -
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Eaton LT360032 Trip Units LT 3P 600A 600V 50/60Hz
MSRP $6,250.00Surplus $1,112.81SKU: A13-1172 Brand: Eaton MPN: LT360032 UPC: 782116365937 Shipping Weight: 2.30 lbs. Shipping Height: 4.00 In. Shipping Length: 6.00 In. Shipping Width: 5.00 In...- SKU:
- A13-1172
- Series:
- LT
- Type:
- Electronic
- Amps:
- 600 A
- Poles:
- 3
- Short Description:
- 600 A, 3-Pole, LG Frame, Electronic
- Catalog:
- Eaton_03771_V4T2_156_CAT.pdf
- Current Rating:
- 600 A
- Number of Poles:
- 3
MSRP $6,250.00Surplus $1,112.81 -
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Eaton LT360035 Molded Case Breakers (MCCBs)
MSRP $2,847.00Surplus $768.69SKU: C15-16876 Brand: Eaton MPN: LT360035 UPC: 78211636597 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16876
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, TRIP UNIT, 600 A, THREE-POLE, 310+ ELECTRONIC LSG, LT, FRAME J-K, SERIES C
MSRP $2,847.00Surplus $768.69 -
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Eaton LT360036 Molded Case Breakers (MCCBs)
MSRP $6,048.00Surplus $1,632.96SKU: C15-16877 Brand: Eaton MPN: LT360036 UPC: 78211636601 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16877
- Type:
- Electronic 310 LSIG
- Number of Poles:
- 3
- Frame Type:
- LG
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, TRIP UNIT, 600 A, THREE-POLE, 310+ ELECTRONIC LSIG, LT, FRAME J-K, SERIES G
- Catalog:
- EatonCorp-CutlerHammer_00123_V4T2_142-V4T2_144_V4T2_185_V4T2_186_V4T2_190_CAT.pdf
- Approval:
- UL 489, CSA C22.2, CE
- Current Rating:
- 600 A
MSRP $6,048.00Surplus $1,632.96 -
Eaton LTS3K Circuit Breaker Accessories
MSRP $147.00Surplus $66.10Eaton LTS3K Circuit Breaker Accessories​ ARCA SKU: C15-2350 Brand: Eaton MPN: LTS3K UPC: 782116197941 Shipping Weight: 0.60 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-2350
- Type:
- Terminal Cover
- Used On:
- G Series LG Frame Molded Case Circuit Breaker
- Specification/Technical:
- Eaton_60661_1_2_SPEC.pdf
- TS PIK:
- 120395288
- Catalog:
- Eaton_03771_V4T2_162_V4T2_163_V4T2_218_CAT.pdf
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TERMINAL SHIELD KIT, TERMINAL SHIELD
- Country of Origin:
- United States
MSRP $147.00Surplus $66.10 -
Eaton LW3800VW Molded Case Breakers (MCCBs) LW 3P 800A 690V 50/60Hz 3Ph L Frame
MSRP $16,368.70Surplus $2,257.51SKU: C15-1916 Brand: Eaton MPN: LW3800VW UPC: Shipping Weight: 25.55 lbs. Shipping Height: 9.00 In. Shipping Length: 19.00 In. Shipping Width: 11.00 In. Product...- SKU:
- C15-1916
- Frame Type:
- L
- Voltage Rating:
- 600 VAC
- Current Rating:
- 800 A
- Number of Poles:
- 3
- Interrupting Rating:
- 45 kA at 415 Vac
- Short Description:
- Eaton Series C complete molded case circuit breaker, L-frame, LW, Complete breaker, Interchangeable thermal-magnetic trip type, Three-pole, 800A, 690 Vac, 250 Vdc, 45 kA at 415 Vac, Without terminals, World
- Series:
- C
- Country of Origin:
- Dominican Republic
MSRP $16,368.70Surplus $2,257.51 -
Eaton M12CS Circuit Breaker Accessories
MSRP $366.00Surplus $96.37SKU: C15-11615 Brand: Eaton MPN: M12CS UPC: 78211466712 Shipping Weight: 1.35 lbs. Shipping Height: 6.00 In. Shipping Length: 9.00 In. Shipping Width: 2.00 In...- SKU:
- C15-11615
- TS PIK:
- 124263779
- Short Description:
- CELL SWITCH,IEC, 3-12PT W/MTG SHIELD KIT
MSRP $366.00Surplus $96.37 -
Eaton M3RRG2000 Circuit Breaker Accessories EA
MSRP $4,752.00Surplus $945.99SKU: C15-9645 Brand: Eaton MPN: M3RRG2000 UPC: 78211475205 Shipping Weight: 16.85 lbs. Shipping Height: 8.00 In. Shipping Length: 13.00 In. Shipping Width: 13.00 In...- SKU:
- C15-9645
- TS PIK:
- 121861112
- Type:
- Sensor/Rating Plug Field Change-Out Kit
- Used On:
- Double Standard Magnum Frame Circuit Breaker
- Catalog:
- EatonCorp-CutlerHammer_00007_64_CAT.pdf
- Country of Origin:
- United States
- Short Description:
- EATON MAGNUM SENSOR AND RATING PLUG KIT, 2000A, THREE-POLE, DOUBLE STANDARD, UP
MSRP $4,752.00Surplus $945.99 -
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Eaton M3RRG3200 Circuit Breaker Accessories EA
MSRP $5,684.00Surplus $902.29SKU: C15-9653 Brand: Eaton MPN: M3RRG3200 UPC: 78211475207 Shipping Weight: 16.50 lbs. Shipping Height: 8.00 In. Shipping Length: 13.00 In. Shipping Width: 13.00 In...- SKU:
- C15-9653
- TS PIK:
- 121861114
- Country of Origin:
- United States
- Short Description:
- 3200 A CURRENT TRANSFORMERS/SENSORS KIT
MSRP $5,684.00Surplus $902.29 -
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Eaton M3SRG0600 Circuit Breaker Accessories Magnum Sensor and rating plug kit 600A 3 Poles
MSRP $1,223.00Surplus $637.22SKU: C15-2355 Brand: Eaton MPN: M3SRG0600 UPC: 782114751794 Shipping Weight: 7.31 lbs. Shipping Height: 6.50 In. Shipping Length: 8.00 In. Shipping Width: 7.00 In...- SKU:
- C15-2355
- Used On:
- Standard Magnum Frame Circuit Breaker
- Short Description:
- 600 A, 3-Pole, Standard, Current Sensor and Rating Plug Kit with (3) Sensor/(1) Rating Plug for Magnum 3200 A Low Voltage Power Circuit Breaker
- Series:
- M3SRG
- Specification/Technical:
- Eaton_49271_1_2_SPEC.pdf
- Catalog:
- Eaton_14664_12_CAT.pdf
MSRP $1,223.00Surplus $637.22 -
Eaton M3SRG1250 Circuit Breaker Accessories EA
MSRP $2,541.00Surplus $663.43SKU: C15-5180 Brand: Eaton MPN: M3SRG1250 UPC: 78211475184 Shipping Weight: 8.25 lbs. Shipping Height: 7.00 In. Shipping Length: 8.00 In. Shipping Width: 7.00 In...- SKU:
- C15-5180
- TS PIK:
- 121861093
- Short Description:
- 1250 A, 3-Pole, Standard, Current Sensor and Rating Plug Kit with (3) Sensor/(1) Rating Plug for Magnum 3200 A Low Vage Power Circuit Breaker
- Catalog:
- Eaton_14664_12_CAT.pdf
- Type:
- Sensor/Rating Plug Field Change Out Kit
- Used On:
- IEC Low Vage Air Circuit Breaker
- Country of Origin:
- United States
MSRP $2,541.00Surplus $663.43 -
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Eaton M3SRG2500 Circuit Breaker Accessories Magnum Sensor 2500A
MSRP $1,664.00Surplus $892.84SKU: C15-2098 Brand: Eaton MPN: M3SRG2500 UPC: 782114751879 Shipping Weight: 9.42 lbs. Shipping Height: 7.00 In. Shipping Length: 8.00 In. Shipping Width: 9.00 In...- SKU:
- C15-2098
- Used On:
- Standard Magnum Frame Circuit Breaker
- Short Description:
- 2500 A, 3-Pole, Standard, Current Sensor and Rating Plug Kit with (3) Sensor/(1) Rating Plug for Magnum 3200 A Low Voltage Power Circuit Breaker
- Series:
- M3SRG
- Specification/Technical:
- Eaton_49277_1_2_SPEC.pdf
- Catalog:
- Eaton_14664_12_CAT.pdf
MSRP $1,664.00Surplus $892.84 -
Eaton M4CS Circuit Breaker Accessories Cassette Cell Switch Kit Mounting Shield
MSRP $529.00Surplus $221.85SKU: C15-2552 Brand: Eaton MPN: M4CS UPC: 786685707396 Shipping Weight: 1.50 lbs. Shipping Height: 3.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-2552
- General Accessories:
- Mounting Shield
- Short Description:
- EATON MAGNUM CELL SWITCH KIT, MAGNUM, UNIVERSAL
- Country of Origin:
- Dominican Republic
MSRP $529.00Surplus $221.85 -
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Eaton MA1L1RPK Circuit Breaker Accessories 600V 50/60Hz J-K Frame Series C
MSRP $385.00Surplus $123.18Eaton MA1L1RPK Circuit Breaker Accessories 600V 50/60Hz J-K Frame Series C​ ARCA SKU: C15-2554 Brand: Eaton MPN: MA1L1RPK UPC: 786679273784 Shipping Weight: 0.35 Shipping Height: 3.00 In...- SKU:
- C15-2554
- Volts:
- 600 V
- Frequency Rating:
- 50/60 Hz
- Frame:
- J-K
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY ALARM SWITCH, HMCP ALARM SWITCH FACT
MSRP $385.00Surplus $123.18 -
Eaton MA2L1LPK Other Auxiliary/Shunt/Trip Units/UVRs
MSRP $1,038.00Surplus $322.09SKU: A13-1567 Brand: Eaton MPN: MA2L1LPK UPC: Shipping Weight: 0.35 lbs. Shipping Height: 3.00 In. Shipping Length: 6.00 In. Shipping Width: 3.00 In. Product...- SKU:
- A13-1567
- TS PIK:
- 107004618
MSRP $1,038.00Surplus $322.09 -
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Eaton MABEGDAG0G Molded Case Breakers (MCCBs)
MSRP $7,149.00Surplus $1,461.00SKU: C15-2148 Brand: Eaton MPN: MABEGDAG0G UPC: Shipping Weight: 74.00 lbs. Shipping Height: 22.00 In. Shipping Length: 27.00 In. Shipping Width: 27.00 In. Product...- SKU:
- C15-2148
MSRP $7,149.00Surplus $1,461.00
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