
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.
-
Din Rail Mounted Circuit Breakers
-
Main Breakers
-
Miniature Circuit Breakers (MCBs)
-
Molded Case Breakers (MCCBs)
-
Motor Circuit Protector (MCPs)
-
Lug Terminal Kits
-
Auxiliary, Shunt, Trip Units and UVRs
-
Circuit Breaker Accessories
- Product
- Qty in Cart
- Price
-
Siemens LGB3B060B Molded Case Breakers (MCCBs) EA
MSRP $3,000.00Surplus $883.73SKU: C15-10483 Brand: Siemens MPN: LGB3B060B UPC: 88762122029 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10483
- TS PIK:
- 125266293
- Voltage Rating:
- 240 VAC, 480 VAC Star/277 VAC, 600 VAC Star/347 VAC (UL), 125/250 VDC
- Catalog:
- SiemensAG_00564_7_33_CAT.pdf
- Current Rating:
- 60 A
- Number of Poles:
- 3
- Short Description:
- 240/480 Star/277 VAC, 125/250 VDC, 60 A, 100 kA, 3-Pole, Molded Case, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Type:
- Molded Case, Thermal Magnetic
- Country of Origin:
- Mexico
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 Star/277 VAC, 14 kA at 600 Star/347 VAC (UL), 14 kA at 125/250 VDC
MSRP $3,000.00Surplus $883.73 -
Siemens LGB3B070B Molded Case Breakers (MCCBs) EA
MSRP $3,400.00Surplus $973.63SKU: C15-10484 Brand: Siemens MPN: LGB3B070B UPC: 88762122030 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10484
- TS PIK:
- 125266294
- Number of Poles:
- 3
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC
- Current Rating:
- 70 A
- Catalog:
- SiemensAG_01796_7_7_7_33_CAT.pdf
- Country of Origin:
- Mexico
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity
MSRP $3,400.00Surplus $973.63 -
Siemens LGB3B100B Molded Case Breakers (MCCBs) EA
MSRP $3,400.00Surplus $982.41SKU: C15-10486 Brand: Siemens MPN: LGB3B100B UPC: 88762122033 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10486
- TS PIK:
- 125266297
- Interrupting Rating:
- 65 kA
- Terminal Type:
- Load Lug
- Type:
- Thermal Magnetic
- Size:
- 3 Inch Width x 2.8 Inch Depth x 5.4 Inch Height
- Catalog:
- SiemensAG_00564_7_33_CAT.pdf
- Number of Poles:
- 3
- Series:
- LGB
- Short Description:
- 600 VAC Star/347 VAC, 100 A, 65 kA at 480 VAC Star/277 VAC, 3-Pole, 8 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, LGB Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker for Panelboard
- Current Rating:
- 100 A
- Voltage Rating:
- 480 V
- Country of Origin:
- Mexico
MSRP $3,400.00Surplus $982.41 -
Siemens LGB3B125B Molded Case Breakers (MCCBs) 3P 125A
MSRP $4,695.00Surplus $572.42SKU: C15-7703 Brand: Siemens MPN: LGB3B125B UPC: 88762122035 Shipping Weight: 2.58 lbs. Shipping Height: 5.40 In. Shipping Length: 3.00 In. Shipping Width: 2.80 In...- SKU:
- C15-7703
- TS PIK:
- 21331323
- Series:
- LGB
- Voltage Rating:
- 480 V
- Catalog:
- SiemensAG_00564_7_33_CAT.pdf
- Number of Poles:
- 3
- Terminal Type:
- Load Lug
- Current Rating:
- 125 A
- Size:
- 3 Inch Width x 2.8 Inch Depth x 5.4 Inch Height
- Short Description:
- 600 VAC Star/347 VAC, 125 A, 65 kA at 480 VAC Star/277 VAC, 3-Pole, 8 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, LGB Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker for Panelboard
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 VAC Star/347 VAC, 14 kA at 600 VAC Star/347 VAC (UL)
- Country of Origin:
- Mexico
MSRP $4,695.00Surplus $572.42 -
Siemens LGG3B020L Molded Case Breakers (MCCBs) EA
MSRP $3,000.00Surplus $843.83SKU: C15-10487 Brand: Siemens MPN: LGG3B020L UPC: 88762127916 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10487
- TS PIK:
- 125266376
- Country of Origin:
- Mexico
MSRP $3,000.00Surplus $843.83 -
Siemens LGG3B030L Molded Case Breakers (MCCBs) EA
MSRP $4,000.00Surplus $1,063.83SKU: C15-10488 Brand: Siemens MPN: LGG3B030L UPC: 88762127918 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10488
- TS PIK:
- 125266378
- Country of Origin:
- Mexico
MSRP $4,000.00Surplus $1,063.83 -
Siemens LGG3B040L Molded Case Breakers (MCCBs) EA
MSRP $4,000.00Surplus $1,069.53SKU: C15-10489 Brand: Siemens MPN: LGG3B040L UPC: 88762127920 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10489
- TS PIK:
- 125266380
- Series:
- LGG
- Short Description:
- 600 VAC Star/347 VAC, 40 A, 65 kA at 480 VAC, 3-Pole, 8 to 1/0 AWG Copper/Aluminum, Line/Load Lug Terminal, LGG Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Number of Poles:
- 3
- Current Rating:
- 40 A
- Voltage Rating:
- 480 V
- Interrupting Rating:
- 65 kA at 240 VAC, 65 kA at 480 VAC, 14 kA at 600 VAC Star/347 VAC, 14 kA at 125/250 VAC
- Country of Origin:
- Mexico
- Size:
- 3 Inch Width x 2.8 Inch Depth x 5.4 Inch Height
- Catalog:
- SiemensAG_00564_7_43_CAT.pdf
- Terminal Type:
- Line and Load Lug
MSRP $4,000.00Surplus $1,069.53 -
Siemens LGG3B060L Molded Case Breakers (MCCBs) EA
MSRP $3,000.00Surplus $843.83SKU: C15-10490 Brand: Siemens MPN: LGG3B060L UPC: 88762127923 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10490
- TS PIK:
- 125266383
- Country of Origin:
- Mexico
- Number of Poles:
- 3
- Current Rating:
- 60 A
- Catalog:
- SiemensAG_01796_7_9_7_43_7_156_CAT.pdf
- Type:
- Low Vage, Thermal Magnetic, High Breaking Capacity
- Installation/Operator:
- SiemensAG_00699_INST.pdf
- Terminal Type:
- Line and Load Lug
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz
- Size:
- 3 Inch Width x 2.9 Inch Depth x 5.4 Inch Height
MSRP $3,000.00Surplus $843.83 -
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 -
Contact Us For Quote
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 -
Contact Us For Quote
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 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 -
Contact Us For Quote
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
Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.