
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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Siemens LGG3B070L Molded Case Breakers (MCCBs) EA
MSRP $4,000.00Surplus $1,096.60SKU: C15-10491 Brand: Siemens MPN: LGG3B070L UPC: 88762127924 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10491
- TS PIK:
- 125266384
- Country of Origin:
- Mexico
MSRP $4,000.00Surplus $1,096.60 -
Siemens LGG3B090L Molded Case Breakers (MCCBs) EA
MSRP $4,000.00Surplus $1,096.60SKU: C15-10492 Brand: Siemens MPN: LGG3B090L UPC: 88762127926 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10492
- TS PIK:
- 125266386
- Country of Origin:
- Mexico
MSRP $4,000.00Surplus $1,096.60 -
Siemens LGG3B125L Molded Case Breakers (MCCBs) EA
MSRP $5,000.00Surplus $1,508.26SKU: C15-10493 Brand: Siemens MPN: LGG3B125L UPC: 88762127929 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10493
- TS PIK:
- 125266389
- Country of Origin:
- Mexico
MSRP $5,000.00Surplus $1,508.26 -
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Siemens LMD63F800 Molded Case Breakers (MCCBs)
MSRP $9,942.00Surplus $3,199.68SKU: C15-7704 Brand: Siemens MPN: LMD63F800 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7704
MSRP $9,942.00Surplus $3,199.68 -
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Siemens LMD63T800 Molded Case Breakers (MCCBs)
MSRP $8,968.00Surplus $3,676.11Siemens LMD63T800 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-7705 Brand: Siemens MPN: LMD63T800 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-7705
MSRP $8,968.00Surplus $3,676.11 -
Siemens LMXD63B800 Molded Case Breakers (MCCBs)
MSRP $19,850.00Surplus $3,021.76SKU: C15-7478 Brand: Siemens MPN: LMXD63B800 UPC: 78364330412 Shipping Weight: 32.70 lbs. Shipping Height: 7.00 In. Shipping Length: 19.00 In. Shipping Width: 10.00...- SKU:
- C15-7478
- TS PIK:
- 126672559
- Type:
- Thermal Magnetic
- Size:
- 7.5 Inch Width x 5.93 Inch Depth x 5.93 Inch Height
- Frame Type:
- MD
- Number of Poles:
- 3
- Short Description:
- 600 VAC, 800 A at 40 Deg C, 50 kA at 480 VAC, 3-Pole, LMD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Voltage Rating:
- 600 V
- Terminal Type:
- Not Included
- Interrupting Rating:
- 65 kA at 240 VAC (UL 489), 50 kA at 480 VAC (UL 489), 25 kA at 600 VAC/250 VDC (UL 489)
- Current Rating:
- 800 A
- Catalog:
- SiemensAG_00564_7_3-7_5_7_126_7_145_CAT.pdf
- Series:
- LMXD6
- Country of Origin:
- Mexico
MSRP $19,850.00Surplus $3,021.76 -
Siemens LMXD63S800A Molded Case Breakers (MCCBs)
MSRP $14,340.00Surplus $1,784.28SKU: C15-7479 Brand: Siemens MPN: LMXD63S800A UPC: 78364330261 Shipping Weight: 33.20 lbs. Shipping Height: 7.00 In. Shipping Length: 19.00 In. Shipping Width: 10.00...- SKU:
- C15-7479
- TS PIK:
- 126672557
- Interrupting Rating:
- 25 kA at 600 VAC/500 VDC
- Number of Poles:
- 3
- Maximum AC Voltage Rating:
- 600 V
- Voltage Rating:
- 600 VAC 50/60 Hertz, 500 VDC
- Size:
- 7.5 Inch Width x 4.5 Inch Depth x 16 Inch Height
- Catalog:
- SiemensAG_09175_17_97_17_117_CAT.pdf
- Terminal Type:
- Not Included
- Frame Type:
- LMD
- Type:
- Molded Case, Low Vage, Magnetic Trip, Standard Breaking Capacity
- Installation/Operator:
- SiemensAG_00597_INST.pdf
- Current Rating:
- 800 A
- Maximum DC Voltage Rating:
- 500 V
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $14,340.00Surplus $1,784.28 -
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Siemens LXD62B600 Molded Case Breakers (MCCBs)
MSRP $13,318.00Surplus $1,905.35SKU: C15-7480 Brand: Siemens MPN: LXD62B600 UPC: 78364321373 Shipping Weight: 16.00 lbs. Shipping Height: 9.00 In. Shipping Length: 13.00 In. Shipping Width: 12.00 In...- SKU:
- C15-7480
- TS PIK:
- 126675151
- Terminal Type:
- Lug
- Size:
- 7.5 Inch Width x 5.44 Inch Depth x 11 Inch Height
- Voltage Rating:
- 600 VAC, 250 VDC
- Frame Type:
- LD
- Current Rating:
- 600 A
- Series:
- LXD6-A
- Number of Poles:
- 2
- Short Description:
- 600 VAC, 250 VDC, 600 A, 35 kA at 480 VAC, 2-Pole, LD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Interrupting Rating:
- 65 kA at 240 VAC (UL 489), 35 kA at 480 VAC (UL 489), 25 kA at 600 VAC (UL 489), 30 kA at 250 VDC (UL 489), 65/33 kA at 220/240 VAC (IEC), 40/20 kA at 380/415 VAC (IEC)
- Catalog:
- SiemensAG_00564_7_3-7_5_7_122_7_145_7_238_CAT.pdf
- Type:
- Thermal Magnetic
- Country of Origin:
- Mexico
MSRP $13,318.00Surplus $1,905.35 -
Siemens LXD63B450 Molded Case Breakers (MCCBs) 3P 450A
MSRP $15,236.00Surplus $4,335.88SKU: C15-7622 Brand: Siemens MPN: LXD63B450 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7622
- Frame Type:
- LD
- Short Description:
- 600 VAC, 500 VDC, 450 A, 35 kA at 480 VAC, 3-Pole, LD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Voltage Rating:
- 600 VAC, 500 VDC
- Catalog:
- SiemensAG_00564_7_3-7_5_7_122_7_145_7_238_CAT.pdf
- Maximum AC Voltage Rating:
- 600 V
- Current Rating:
- 450 A
- Type:
- Thermal Magnetic
- Interrupting Rating:
- 65 kA at 240 VAC (UL 489), 35 kA at 480 VAC (UL 489), 25 kA at 600 VAC (UL 489), 30 kA at 250 VDC (UL 489), 65/33 kA at 220/240 VAC (IEC), 40/20 kA at 380/415 VAC (IEC)
- Size:
- 7.5 Inch Width x 5.44 Inch Depth x 11 Inch Height
- Series:
- LXD6-A
- Maximum DC Voltage Rating:
- 500 V
- Terminal Type:
- Not Included
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $15,236.00Surplus $4,335.88 -
Siemens LXD63B500 Molded Case Breakers (MCCBs)
MSRP $16,608.00Surplus $1,593.74SKU: C15-7481 Brand: Siemens MPN: LXD63B500 UPC: 78364321375 Shipping Weight: 18.90 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 9.00 In...- SKU:
- C15-7481
- TS PIK:
- 126672080
- Terminal Type:
- Lug
- Type:
- Thermal Magnetic
- Size:
- 7.5 Inch Width x 5.44 Inch Depth x 11 Inch Height
- Short Description:
- 600 VAC, 500 VDC, 500 A at 40 Deg C, 35 kA at 480 VAC, 3-Pole, LD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Series:
- LXD6-A
- Catalog:
- SiemensAG_00564_7_3-7_5_7_122_7_145_CAT.pdf
- Voltage Rating:
- 600 VAC, 500 VDC
- Current Rating:
- 500 A
- Interrupting Rating:
- 65 kA at 240 VAC (UL 489), 35 kA at 480 VAC (UL 489), 25 kA at 600 VAC (UL 489), 30 kA at 250 VDC (UL 489), 65/33 kA at 220/240 VAC (IEC), 40/20 kA at 380/415 VAC (IEC)
- Frame Type:
- LD
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $16,608.00Surplus $1,593.74 -
Siemens LXD63B600 Molded Case Breakers (MCCBs) LXD 3P 600A 600V 50/60Hz 3Ph LD Frame
MSRP $10,210.00Surplus $1,967.07SKU: C15-1436 Brand: Siemens MPN: LXD63B600 UPC: 783643213760 Shipping Weight: 18.05 lbs. Shipping Height: 6.60 In. Shipping Length: 14.70 In. Shipping Width: 8.80 In...- SKU:
- C15-1436
- Series:
- LXD6-A
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Size:
- 7.5 Inch Width x 5.44 Inch Depth x 11 Inch Height
- Volts:
- 600 VAC
- Volts:
- 500 VDC
- Amps:
- 600 A
- Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 VAC (UL 489)
- Interrupting Rating:
- 35 kA at 480 Volt AC (UL 489)
- Interrupting Rating:
- 25 kA at 600 Volt AC (UL 489)
- Interrupting Rating:
- 30 kA at 250 Volt DC (UL 489)
- Interrupting Rating:
- 65/33 kA at 220/240 Volt AC (IEC)
- Interrupting Rating:
- 40/20 kA at 380/415 Volt AC (IEC)
- Terminal Type:
- Lug
- Frame Type:
- LD
- Short Description:
- 600 VAC, 500 VDC, 600 A at 40 Deg C, 35 kA at 480 VAC, 3-Pole, LD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip
- Catalog:
- SiemensAG_00564_7_3-7_5_7_122_7_145_7_238_CAT.pdf
- Current Rating:
- 600 A
- Voltage Rating:
- 600 VAC
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $10,210.00Surplus $1,967.07 -
Siemens LXD63H600 Motor Circuit Protector (MCPs)
MSRP $13,151.00Surplus $2,492.72SKU: C15-7482 Brand: Siemens MPN: LXD63H600 UPC: 78364321432 Shipping Weight: 18.70 lbs. Shipping Height: 7.00 In. Shipping Length: 15.00 In. Shipping Width: 9.00 In...- SKU:
- C15-7482
- TS PIK:
- 120152209
- Number of Poles:
- 3
- Current Rating:
- 600 A
- Voltage Rating:
- 600 VAC/250 VDC
- Short Description:
- 600 VAC, 250 VDC, 600 A, 35 kA at 480 VAC, 3000 to 6000 A Instantaneous Trip, 3-Pole, LD Frame, Magnetic, Non-Interchangeable Trip, ETI Motor, Molded Case Circuit Breaker
- Series:
- LXD6-A
- Type:
- Magnetic
- Catalog:
- SiemensAG_00564_7_3-7_5_7_141_7_142_7_145_CAT.pdf
- Country of Origin:
- Mexico
- Maximum AC Voltage Rating (V):
- 600
- Trip Setting:
- 3000 to 6000 A
MSRP $13,151.00Surplus $2,492.72 -
Siemens MBK125A Molded Case Breakers (MCCBs) MBK 2P 125A 240V 50/60Hz 1Ph EA
MSRP $1,364.00Surplus $106.40Siemens MBK125A Molded Case Breakers (MCCBs) MBK 2P 125A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-5080 Brand: Siemens MPN: MBK125A UPC: 783643388000 Shipping Weight: 0.95 Shipping Height: 5.00...- SKU:
- C15-5080
- Series:
- MBK
- Type:
- Main
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 240 V
- Amps:
- 125 A
- Used On:
- Load Center
- Interrupting Rating:
- 22 kA
- Application:
- Distribution
- Short Description:
- 125 A, 22 kA, Steel, Main
- Catalog:
- SiemensAG_00562_1_22_1_25_1_45_CAT.pdf
- Data Sheet:
- SiemensAG_06451_1_DATA.pdf
- Current Rating:
- 125 A
- Size:
- 3 Inch Width x 4 Inch Depth x 4 Inch Height
- Installation/Operator:
- SiemensAG_00698_INST.pdf
- Country of Origin:
- Mexico
- Wire Size:
- 4 to 300 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
MSRP $1,364.00Surplus $106.40 -
Siemens MBK150A Loadcenters and Panelboards EA
MSRP $768.50Surplus $207.50Siemens MBK150A Loadcenters and Panelboards EA​ ARCA SKU: L19-4235 Brand: Siemens MPN: MBK150A UPC: 78364338799 Shipping Weight: 2.25 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- L19-4235
- Data Sheet:
- SiemensAG_06454_1_DATA.pdf
- Series:
- MBK
- Short Description:
- 120/240 VAC, 150 A, 22 kA, Steel, Main, Load Center Breaker Kit
- Catalog:
- SiemensAG_00562_1_22_1_25_1_45_CAT.pdf
- Current Rating:
- 150 A
- Voltage Rating:
- 240 VAC
- Installation/Operator:
- SiemensAG_00404_INST.pdf
- Interrupting Rating:
- 22 kA
- Type:
- Main
- Used On:
- Load Center
- Country of Origin:
- MEX
- Application:
- Distribution
- Approval:
- UL 489, CSA C22.2
MSRP $768.50Surplus $207.50 -
Siemens MBK200M Miniature Circuit Breakers (MCBs) M2 2P 200A 120/240VAC 60Hz
MSRP $1,009.00Surplus $131.35SKU: C15-1494 Brand: Murray MPN: MBK200M UPC: 040892009378 Shipping Weight: 2.25 lbs. Shipping Height: 5.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In...- SKU:
- C15-1494
- Type:
- Fusible
- Amps:
- 32 A
- Used On:
- 200/225 A Rock Solid Loadcenter
- Enclosure:
- NEMA 3R
- Short Description:
- 120/240 VAC, 200 A, 22 kA, 2-Pole
- Catalog:
- SiemensAG_01821_22_23_CAT.pdf
- CAD Drawing:
- Eaton_41106_1_CAD.pdf
- Data Sheet:
- SiemensAG_06459_1_DATA.pdf
- Country of Origin:
- Mexico
MSRP $1,009.00Surplus $131.35 -
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Siemens MBKBC3 Circuit Breaker Accessories
MSRP $740.00Surplus $335.27SKU: C15-11555 Brand: Siemens MPN: MBKBC3 UPC: 78364327820 Shipping Weight: 2.25 lbs. Shipping Height: 5.00 In. Shipping Length: 14.00 In. Shipping Width: 9.00 In...- SKU:
- C15-11555
- TS PIK:
- 21368666
MSRP $740.00Surplus $335.27 -
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Siemens MBKFD3 Molded Case Breakers (MCCBs) 250A
MSRP $3,040.00Surplus $817.58SKU: L19-4946 Brand: Siemens MPN: MBKFD3 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- L19-4946
MSRP $3,040.00Surplus $817.58 -
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Siemens MBKFD3150 Molded Case Breakers (MCCBs)
Surplus $661.56SKU: C15-11532 Brand: Siemens MPN: MBKFD3150 UPC: 78364309618 Shipping Weight: 12.60 lbs. Shipping Height: 10.00 In. Shipping Length: 14.00 In. Shipping Width: 8.00...- SKU:
- C15-11532
- TS PIK:
- 115585191
Surplus $661.56 -
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Siemens MBKFD3175 Molded Case Breakers (MCCBs)
MSRP $10,812.00Surplus $2,697.34SKU: C15-7675 Brand: Siemens MPN: MBKFD3175 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7675
MSRP $10,812.00Surplus $2,697.34 -
Siemens MBKFD3225 Molded Case Breakers (MCCBs)
MSRP $4,000.00Surplus $1,476.12SKU: C15-11554 Brand: Siemens MPN: MBKFD3225 UPC: 78364309620 Shipping Weight: 12.70 lbs. Shipping Height: 10.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00...- SKU:
- C15-11554
- TS PIK:
- 115585192
MSRP $4,000.00Surplus $1,476.12
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