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 JXD63B350H Molded Case Breakers (MCCBs) EA
MSRP $13,000.00Surplus $3,976.25SKU: C15-10471 Brand: Siemens MPN: JXD63B350H UPC: 78364322935 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10471
- TS PIK:
- 115558786
- Country of Origin:
- Mexico
MSRP $13,000.00Surplus $3,976.25 -
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Siemens JXD63B350L Molded Case Breakers (MCCBs) 350A
MSRP $9,812.00Surplus $2,282.80SKU: C15-7473 Brand: Siemens MPN: JXD63B350L UPC: 78364300959 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-7473
- TS PIK:
- 115558787
- Current Rating:
- 350 A at 40 Deg C
- Number of Poles:
- 3
- Interrupting Rating:
- 25 kA at 600 VAC/500 VDC
- Series:
- JXD6-A
- Frame Type:
- JD
- Voltage Rating:
- 600 VAC at 50/60 Hz, 500 VDC
- Short Description:
- 600 VAC, 500 VDC, 350 A at 40 Deg C, 35 kA at 480 VAC, 3-Pole, 3/0 AWG to 500 MCM Copper/4/0 AWG to 500 MCM Aluminum, Line/Load Lug Terminal, JD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Size:
- 7.5 Inch W x 5.44 Inch D x 11 Inch H
- Terminal Type:
- Line Lug
- Maximum DC Voltage Rating:
- 500 V
- Catalog:
- SiemensAG_01698_17_78_17_85_17_112_CAT.pdf
- Type:
- Molded Case, Thermal Magnetic
- Maximum AC Voltage Rating:
- 600 V
MSRP $9,812.00Surplus $2,282.80 -
Siemens JXD63B400 Molded Case Breakers (MCCBs) 400A 600V
MSRP $9,400.00Surplus $2,267.65SKU: C15-7475 Brand: Siemens MPN: JXD63B400 UPC: 78364321309 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-7475
- TS PIK:
- 21367653
- Series:
- JXD6-A
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at VAC, 25 kA at 500 VDC (UL 489), 65 kA at 220/240 VAC, 40 kA at 380/415 VAC (IEC)
- Current Rating:
- 400 A
- Catalog:
- SiemensAG_01698_17_78_17_85_CAT.pdf
- Maximum AC Voltage Rating:
- 600 V
- Short Description:
- 600 VAC, 500 VDC, 400 A at 40 Deg C, 35 kA at 480 VAC, 3-Pole, JD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Type:
- Molded Case, Thermal Magnetic
- Frame Type:
- JD
- Terminal Type:
- Not Included
- Size:
- 7.5 Inch Width x 5.44 Inch Depth x 11 Inch Height
- Number of Poles:
- 3
- Voltage Rating:
- 600 VAC, 500 VDC
- Country of Origin:
- Mexico
MSRP $9,400.00Surplus $2,267.65 -
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Siemens JXD63B400H Molded Case Breakers (MCCBs) EA
MSRP $13,000.00Surplus $4,810.14SKU: C15-10472 Brand: Siemens MPN: JXD63B400H UPC: 78364322936 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10472
- TS PIK:
- 115558788
- Country of Origin:
- Mexico
MSRP $13,000.00Surplus $4,810.14 -
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Siemens KM3F800 Molded Case Breakers (MCCBs)
MSRP $5,058.71Surplus $1,821.13SKU: C15-7477 Brand: Siemens MPN: KM3F800 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7477
MSRP $5,058.71Surplus $1,821.13 -
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Siemens L-5538 Miniature Circuit Breakers (MCBs) 3P 20A 240V 50/60Hz 3Ph
MSRP $125.00Surplus $33.59Siemens L-5538 Miniature Circuit Breakers (MCBs) 3P 20A 240V 50/60Hz 3Ph​ ARCA SKU: C15-4832 Brand: Siemens MPN: L-5538 UPC: Shipping Weight: 0.95 lbs. Shipping Height: 4.00 In...- SKU:
- C15-4832
MSRP $125.00Surplus $33.59 -
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Siemens LD63B400 Molded Case Breakers (MCCBs)
MSRP $15,702.00Surplus $5,652.72Siemens LD63B400 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-7618 Brand: Siemens MPN: LD63B400 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-7618
MSRP $15,702.00Surplus $5,652.72 -
Siemens LD63F600 Molded Case Breakers (MCCBs)
MSRP $10,070.00Surplus $3,440.54Siemens LD63F600 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-7620 Brand: Siemens MPN: LD63F600 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-7620
- Type:
- Molded Case, LD Frame
- Voltage Rating:
- 600 VAC, 500 VDC
- Number of Poles:
- 3
- Short Description:
- 7.5" x 4" x 11", 600 VAC, 500 VDC, 600 A, 3-Pole, Circuit Breaker Frame
- Current Rating:
- 250 to 600 A
- Terminal Type:
- Line/Load Lug
- Size:
- 11 Inch L x 7.5 Inch W x 4 Inch D
- Catalog:
- SiemensAG_00876_5_40_CAT.pdf
- Series:
- LD6-A
- Interrupting Rating:
- 65 kA at 240 VAC 50/60 Hertz (UL), 35 kA at 480 VAC 50/60 Hertz (UL), 25 kA at 600 VAC 50/60 Hertz (UL), 30 kA at 250 VDC 50/60 Hertz (UL)
- Country of Origin:
- Mexico
MSRP $10,070.00Surplus $3,440.54 -
Siemens LD63T450 Molded Case Breakers (MCCBs)
MSRP $5,638.00Surplus $944.74SKU: C15-7522 Brand: Siemens MPN: LD63T450 UPC: 78364321412 Shipping Weight: 2.50 lbs. Shipping Height: 6.00 In. Shipping Length: 9.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7522
- TS PIK:
- 115459724
- Country of Origin:
- Mexico
MSRP $5,638.00Surplus $944.74 -
Siemens LD63T500 Molded Case Breakers (MCCBs)
MSRP $5,638.00Surplus $443.67SKU: C15-7523 Brand: Siemens MPN: LD63T500 UPC: 78364321413 Shipping Weight: 2.50 lbs. Shipping Height: 6.00 In. Shipping Length: 9.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7523
- TS PIK:
- 115459729
- Short Description:
- 600 VAC, 500 VDC, 500 A, 22/35 kA, 3-Pole, 3/0 AWG to 500 KCMIL Copper, 4/0 AWG to 500 KCMIL Aluminum, Line/Load Lug Terminal, LD Frame, Thermal Magnetic, Interchangeable Molded Case Circuit Breaker Trip Unit
- Frame Type:
- LD
- Current Rating:
- 500 A
- Type:
- Thermal Magnetic, Interchangeable
- Catalog:
- SiemensAG_00564_7_3-7_5_7_112_7_145_CAT.pdf
- Number of Poles:
- 3
- Series:
- LD63
- Country of Origin:
- Mexico
MSRP $5,638.00Surplus $443.67 -
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Siemens LD6N1 Circuit Breaker Accessories
MSRP $1,462.00Surplus $526.32SKU: C15-7621 Brand: Siemens MPN: LD6N1 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7621
MSRP $1,462.00Surplus $526.32 -
Siemens LGB1B020B Molded Case Breakers (MCCBs)
MSRP $961.00Surplus $145.30SKU: C15-8800 Brand: Siemens MPN: LGB1B020B UPC: 88762121992 Shipping Weight: 0.85 lbs. Shipping Height: 4.49 In. Shipping Length: 2.71 In. Shipping Width: 1.00 In...- SKU:
- C15-8800
- TS PIK:
- 110613211
- Current Rating:
- 20 A
- Voltage Rating:
- 347 VAC 50/60 Hertz
- Short Description:
- 120/277/347 VAC 50/60 Hz, 125 VDC, 20 A, 100 kA Interrupt, 1-Pole, Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity, Panelboard Circuit Breaker
- Number of Poles:
- 1
- Catalog:
- SiemensAG_10807_1-5_CAT.pdf
- Interrupting Rating:
- 14 kA at 347 VAC
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity
- Country of Origin:
- Mexico
MSRP $961.00Surplus $145.30 -
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Siemens LGB2B030B Molded Case Breakers (MCCBs) EA
MSRP $2,400.00Surplus $682.38SKU: C15-10477 Brand: Siemens MPN: LGB2B030B UPC: 88762122009 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10477
- TS PIK:
- 125266273
- Short Description:
- 240/480 Star/277/600 Star/347 VAC 50/60 Hz, 125/250 VDC, 30 A, 100 kA Interrupt, 2-Pole, Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity, Panelboard Circuit Breaker
- Catalog:
- SiemensAG_10807_1-5_CAT.pdf
- Country of Origin:
- Mexico
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz, 125/250 VDC
- Number of Poles:
- 2
- Current Rating:
- 30 A
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC/125/250 VDC
MSRP $2,400.00Surplus $682.38 -
Siemens LGB3B015B Molded Case Breakers (MCCBs) EA
MSRP $3,200.00Surplus $927.73SKU: C15-10478 Brand: Siemens MPN: LGB3B015B UPC: 88762122021 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10478
- TS PIK:
- 125266285
- Voltage Rating:
- 480 V
- Number of Poles:
- 3
- Series:
- LGB
- Country of Origin:
- Mexico
- Short Description:
- 600 VAC Star/347 VAC, 15 A, 65 kA at 480 VAC Star/277 VAC, 3-Pole, 14 to 10 AWG Copper/Aluminum, Load Lug Terminal, LGB Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker for Panelboard
- Current Rating:
- 15 A
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 VAC Star/347 VAC, 14 kA at 600 VAC Star/347 VAC (UL)
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_00564_7_33_CAT.pdf
- Size:
- 3 Inch Width x 2.8 Inch Depth x 5.4 Inch Height
MSRP $3,200.00Surplus $927.73 -
Siemens LGB3B025B Molded Case Breakers (MCCBs) EA
MSRP $3,200.00Surplus $927.73SKU: C15-10480 Brand: Siemens MPN: LGB3B025B UPC: 88762122023 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10480
- TS PIK:
- 125266287
- Current Rating:
- 25 A
- Catalog:
- SiemensAG_10807_1-5_CAT.pdf
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC
- Number of Poles:
- 3
- Country of Origin:
- Mexico
- Short Description:
- 240/480 Star/277/600 Star/347 VAC 50/60 Hz, 125/250 VDC, 25 A, 100 kA Interrupt, 3-Pole, Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity, Panelboard Circuit Breaker
MSRP $3,200.00Surplus $927.73 -
Siemens LGB3B030B Molded Case Breakers (MCCBs)
MSRP $3,135.00Surplus $417.62SKU: C15-9231 Brand: Siemens MPN: LGB3B030B UPC: 88762122024 Shipping Weight: 2.58 lbs. Shipping Height: 5.40 In. Shipping Length: 3.00 In. Shipping Width: 2.80 In...- SKU:
- C15-9231
- Catalog:
- SiemensAG_10807_1-5_CAT.pdf
- Current Rating:
- 30 A
- Short Description:
- 240/480 Star/277/600 Star/347 VAC 50/60 Hz, 125/250 VDC, 30 A, 100 kA Interrupt, 3-Pole, Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity, Panelboard Circuit Breaker
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz
- Number of Poles:
- 3
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity
- Country of Origin:
- Mexico
MSRP $3,135.00Surplus $417.62 -
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Siemens LGB3B040B Molded Case Breakers (MCCBs) EA
MSRP $3,200.00Surplus $1,152.00SKU: C15-10481 Brand: Siemens MPN: LGB3B040B UPC: 88762122026 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10481
- TS PIK:
- 125266290
MSRP $3,200.00Surplus $1,152.00 -
Siemens LGB3B045B Molded Case Breakers (MCCBs) EA
MSRP $3,200.00Surplus $897.80SKU: C15-10482 Brand: Siemens MPN: LGB3B045B UPC: 88762122027 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10482
- TS PIK:
- 125266291
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz
- Catalog:
- SiemensAG_01796_7_7_7_33_CAT.pdf
- Current Rating:
- 45 A
- Number of Poles:
- 3
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC
- Country of Origin:
- Mexico
MSRP $3,200.00Surplus $897.80 -
Siemens LGB3B050B Molded Case Breakers (MCCBs) LGB 3P 50A 480V 50/60Hz 3Ph
MSRP $2,983.00Surplus $417.62Siemens LGB3B050B Molded Case Breakers (MCCBs) LGB 3P 50A 480V 50/60Hz 3Ph​ ARCA SKU: C15-4182 Brand: Siemens MPN: LGB3B050B UPC: 887621220280 Shipping Weight: 2.55 lbs. Shipping Height: 5...- SKU:
- C15-4182
- Series:
- LGB
- Approval:
- UL
- Size:
- 3 Inch Width x 2.8 Inch Depth x 5.4 Inch Height
- Volts:
- 480 V
- Amps:
- 50 A
- Used On:
- Panelboard
- Poles:
- 3
- Interrupting Rating:
- 100 kA at 240 VAC
- Interrupting Rating:
- 65 kA at 480 Volt AC Star/347 Volt AC
- Interrupting Rating:
- 14 kA at 600 Volt AC Star/347 Volt AC (UL)
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 600 VAC Star/347 VAC, 50 A at 40 Deg C, 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
- Catalog:
- SiemensAG_00564_7_33_CAT.pdf
- Current Rating:
- 50 A
- Voltage Rating:
- 480 V
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $2,983.00Surplus $417.62 -
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Siemens LGB3B060 Molded Case Breakers (MCCBs) LGB 3P 60A 600V 50/60Hz 3Ph
MSRP $1,602.00Surplus $309.34SKU: C15-1464 Brand: Siemens MPN: LGB3B060 UPC: Shipping Weight: 2.20 lbs. Shipping Height: 4.00 In. Shipping Length: 5.00 In. Shipping Width: 3.00 In. Product...- SKU:
- C15-1464
- Frame Type:
- LGB
- Voltage Rating:
- 600 VAC
- Current Rating:
- 60 A
- Number of Poles:
- 3
- Short Description:
- Siemens, VL Series, type LGB, 3P, 3PH, 50A, 600V, 100kA@240V, high interrupting capacity, panelboard mounting, suitable for reverse feed applications, bolt-on
MSRP $1,602.00Surplus $309.34
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