Circuit Breakers
Circuit Breakers - Source rare and hard-to-find breakers with ease
At ARCA Supply, we know that circuit breakers are essential to safeguarding electrical systems, protecting them from overloads and short circuits. Whether you're managing a commercial facility, maintaining industrial equipment, or working on residential projects, having the right circuit breakers ensures uninterrupted performance and peace of mind.
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.
Explore Our Circuit Breaker Categories:
- Air Circuit Breakers (ACBs): Ideal for large-scale industrial applications, ACBs provide superior protection in high-current scenarios.
- Din Rail Mounted Circuit Breakers: These breakers are designed for quick installation in compact spaces, making them perfect for modular setups.
- Main Breakers: As a crucial part of any electrical system, main breakers ensure that circuits are effectively managed and protected from faults.
- Miniature Circuit Breakers (MCBs): Designed for residential and commercial use, MCBs are essential for protecting lower power circuits from damage.
- Molded Case Breakers (MCCBs): When high current protection is needed, MCCBs offer robust and durable performance.
- Motor Circuit Protectors (MCPs): Specifically engineered to protect motors, MCPs offer fast response times to prevent equipment damage.
- Circuit Breaker Accessories: From trip units to mounting kits, we stock a variety of accessories to enhance the functionality of your breakers.
Leading Brands We Carry:
At ARCA Supply, we carry a comprehensive lineup of top brands to ensure you get the best quality and reliability. Our inventory includes trusted names such as Eaton, Square D, Siemens, and General Electric. With over 2,600 Eaton products and hundreds from brands like ABB, Schneider Electric, and Leviton, you can be confident in finding exactly what you need.
Choose the Right Circuit Breaker:
When selecting a circuit breaker, factors such as current rating, voltage rating, and mounting style are critical. Our range includes options for:
- Current Ratings: From 15A to 600A, ensuring the right protection for every application.
- Voltage Ratings: With options ranging from 120V to 600V for both AC and DC applications.
- Mounting Types: Choose from plug-on, DIN rail, or bolt-on mountings to match your installation requirements.
Why Choose ARCA Supply?
As a trusted distributor specializing in hard-to-find electrical components, we ensure that our circuit breakers meet the highest industry standards. Our commitment to the circular economy also means that unsold products are responsibly recycled, helping to reduce waste while supporting your projects.
Explore our extensive collection of circuit breakers today and find the perfect solution for your electrical system’s needs.
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Air Circuit Breakers (ACBs)
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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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Circuit Breaker Accessories
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Siemens HED43B045L Molded Case Breakers (MCCBs)
MSRP $3,546.00Surplus $565.52SKU: C15-7664 Brand: Siemens MPN: HED43B045L UPC: 78364323645 Shipping Weight: 3.75 lbs. Shipping Height: 4.00 In. Shipping Length: 7.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7664
- TS PIK:
- 115558254
- Current Rating:
- 45 A
- Frame Type:
- ED
- Catalog:
- SiemensAG_09175_17_1_17_4_17_81-17_84_17_112_17_113_17_123_17_133_CAT.pdf
- Number of Poles:
- 3
- Installation/Operator:
- SiemensAG_00593_INST.pdf
- Type:
- Molded Case, Low Vage, Thermal Magnetic, High IC Rating
- Interrupting Rating:
- 42 kA at 480 VAC
- Terminal Type:
- Line and Load Lug
- Maximum AC Voltage Rating:
- 480 V
- Voltage Rating:
- 480 VAC 50/60 Hertz
- Size:
- 3 Inch Width x 3.92 Inch Depth x 6.35 Inch Height
- Short Description:
- BRKR HED4 3P 480V 45A LUG
- Country of Origin:
- Mexico
MSRP $3,546.00Surplus $565.52 -
Siemens HED43B050 Molded Case Breakers (MCCBs)
MSRP $4,214.00Surplus $1,120.18SKU: C15-8447 Brand: Siemens MPN: HED43B050 UPC: 78364321016 Shipping Weight: 3.70 lbs. Shipping Height: 6.35 In. Shipping Length: 6.35 In. Shipping Width: 3.00 In...- SKU:
- C15-8447
- TS PIK:
- 21367455
- Type:
- Thermal Magnetic
- Country of Origin:
- Mexico
- Frame Type:
- ED
- Current Rating:
- 50 A
- Voltage Rating:
- 480 VAC
- Series:
- HED4
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Size:
- 3 Inch Width x 4.56 Inch Depth x 6.35 Inch Height
- Terminal Type:
- Load Lug
- Interrupting Rating:
- 100 kA at 240 VAC (UL 489), 42 kA at 480 VAC (UL 489)
- Number of Poles:
- 3
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Short Description:
- 480 VAC, 50 A, 42 kA, 3-Pole, 10 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
MSRP $4,214.00Surplus $1,120.18 -
Siemens HED43B060 Molded Case Breakers (MCCBs)
MSRP $3,546.00Surplus $417.47SKU: C15-7531 Brand: Siemens MPN: HED43B060 UPC: 78364321017 Shipping Weight: 3.65 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7531
- TS PIK:
- 115459890
- Frame Type:
- ED
- Number of Poles:
- 3
- Terminal Type:
- Load Lug
- Type:
- Thermal Magnetic
- Size:
- 3 Inch Width x 4.56 Inch Depth x 6.35 Inch Height
- Current Rating:
- 60 A
- Catalog:
- SiemensAG_00876_5_30_5_31_CAT.pdf
- Series:
- HED4
- Interrupting Rating:
- 100 kA at 240 VAC (UL 489), 42 kA at 480 VAC (UL 489)
- Voltage Rating:
- 480 VAC
- Short Description:
- 480 VAC, 60 A, 100 kA Interrupt, 3-Pole, HED4-Frame, Thermal Magnetic, Molded Case Circuit Breaker
- Country of Origin:
- Mexico
MSRP $3,546.00Surplus $417.47 -
Siemens HED43B090 Molded Case Breakers (MCCBs)
MSRP $3,815.00Surplus $450.91SKU: C15-7456 Brand: Siemens MPN: HED43B090 UPC: 78364321020 Shipping Weight: 3.65 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7456
- TS PIK:
- 115459914
- Type:
- Thermal Magnetic
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Frame Type:
- ED
- Voltage Rating:
- 480 VAC
- Short Description:
- 480 VAC, 90 A at 40 Deg C, 42 kA, 3-Pole, 10 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Number of Poles:
- 3
- Current Rating:
- 90 A
- Interrupting Rating:
- 100 kA at 240 VAC (UL 489), 42 kA at 480 VAC (UL 489)
- Series:
- HED4
- Terminal Type:
- Load Lug
- Size:
- 3 Inch Width x 4.56 Inch Depth x 6.35 Inch Height
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Country of Origin:
- Mexico
MSRP $3,815.00Surplus $450.91 -
Siemens HED43B125 Molded Case Breakers (MCCBs)
MSRP $7,792.00Surplus $583.25SKU: C15-7392 Brand: Siemens MPN: HED43B125 UPC: 78364321023 Shipping Weight: 3.75 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7392
- TS PIK:
- 120525170
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Short Description:
- 480 VAC, 125 A at 40 Deg C, 42 kA, 3-Pole, 3 to 3/0 AWG Copper/1 to 2/0 AWG Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Interrupting Rating:
- 100 kA at 240 VAC, 42 kA at 480 VAC (UL)
- Voltage Rating:
- 480 VAC at 50/60 Hz (UL)
- Series:
- HED4
- Number of Poles:
- 3
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Current Rating:
- 125 A
- Size:
- 3 Inch W x 4.56 Inch D x 6.35 Inch H
- Terminal Type:
- Load Lug
- Country of Origin:
- Mexico
MSRP $7,792.00Surplus $583.25 -
Siemens HFD63B175L Molded Case Breakers (MCCBs)
MSRP $14,887.00Surplus $1,782.48SKU: C15-7515 Brand: Siemens MPN: HFD63B175L UPC: 78364323590 Shipping Weight: 9.30 lbs. Shipping Height: 6.00 In. Shipping Length: 13.00 In. Shipping Width: 7.00 In...- SKU:
- C15-7515
- TS PIK:
- 121695075
- Interrupting Rating:
- 25 kA at 600 VAC/500 VDC
- Number of Poles:
- 3
- Current Rating:
- 175 A
- Voltage Rating:
- 600 VAC 50/60 Hertz, 500 VDC
- Catalog:
- SiemensAG_09175_17_4_17_81_17_86_17_114_CAT.pdf
- Terminal Type:
- Line and Load Lug
- Frame Type:
- FD
- Maximum AC Voltage Rating:
- 600 V
- Type:
- Molded Case, Low Vage, Thermal Magnetic, High Breaking Capacity
- Installation/Operator:
- SiemensAG_00590_INST.pdf
- Size:
- 4.5 Inch Width x 4 Inch Depth x 9.5 Inch Height
- Maximum DC Voltage Rating:
- 500 V
- Short Description:
- BRKR HFD6 3P 600V 175A LUG
- Country of Origin:
- Mexico
MSRP $14,887.00Surplus $1,782.48 -
Siemens HFD63B225 Molded Case Breakers (MCCBs) 225A
MSRP $13,657.00Surplus $1,984.12SKU: C15-7686 Brand: Siemens MPN: HFD63B225 UPC: 78364321185 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-7686
- TS PIK:
- 21367575
- Short Description:
- 600 VAC, 500 VDC, 225 A at 40 Deg C, 65 kA at 480 VAC, 3-Pole, FD Frame, Thermal Magnetic Trip Unit, Interchangeable Trip, Molded Case Circuit Breaker
- Installation/Operator:
- SiemensAG_00224_INST.pdf
- Number of Poles:
- 3
- Frame Type:
- FD
- Voltage Rating:
- 600 VAC
- Size:
- 4.5 Inch Width x 4 Inch Depth x 9.5 Inch Height
- Current Rating:
- 225 A
- Interrupting Rating:
- 100 kA at 240 VAC, 64 kA at 480 VAC, 25 kA at 600 VAC, 25 kA at 500 VDC (UL 489)
- Series:
- HFD6
- Terminal Type:
- Lug
- Catalog:
- SiemensAG_01698_17_78_17_82_17_83_17_111_CAT.pdf
- Country of Origin:
- Mexico
MSRP $13,657.00Surplus $1,984.12 -
Siemens HFXD63B125L Molded Case Breakers (MCCBs)
MSRP $14,896.00Surplus $1,618.14SKU: C15-7516 Brand: Siemens MPN: HFXD63B125L UPC: 78364308449 Shipping Weight: 9.35 lbs. Shipping Height: 7.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7516
- TS PIK:
- 115558313
- Number of Poles:
- 3
- Maximum AC Voltage Rating:
- 600 V
- Interrupting Rating:
- 25 kA at 600 VAC/500 VDC
- Frame Type:
- FD
- Installation/Operator:
- SiemensAG_00590_INST.pdf
- Voltage Rating:
- 600 VAC 50/60 Hertz, 500 VDC
- Type:
- Molded Case, Low Vage, Thermal Magnetic, High Breaking Capacity
- Terminal Type:
- Line and Load Lug
- Maximum DC Voltage Rating:
- 500 V
- Size:
- 4.5 Inch Width x 4 Inch Depth x 9.5 Inch Height
- Current Rating:
- 125 A
- Catalog:
- SiemensAG_09175_17_4_17_81_CAT.pdf
- Short Description:
- BRKR HFD6 3P 600V 125A FX LUG
- Country of Origin:
- Mexico
MSRP $14,896.00Surplus $1,618.14 -
Siemens HFXD63B175 Molded Case Breakers (MCCBs)
MSRP $14,503.00Surplus $1,556.68SKU: C15-7518 Brand: Siemens MPN: HFXD63B175 UPC: 78364331848 Shipping Weight: 8.85 lbs. Shipping Height: 7.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7518
- TS PIK:
- 115459657
- Maximum DC Voltage Rating:
- 500 V
- Size:
- 4.5 Inch W x 5.25 Inch D x 9.5 Inch H
- Type:
- Molded Case, Thermal Magnetic
- Voltage Rating:
- 600 VAC at 50/60 Hz, 500 VDC
- Installation/Operator:
- SiemensAG_00224_INST.pdf
- Current Rating:
- 175 A
- Catalog:
- SiemensAG_01698_17_78_CAT.pdf
- Terminal Type:
- Load and Line Lug
- Interrupting Rating:
- 25 kA at 600 VAC, 25 kA at 500 VDC
- Number of Poles:
- 3
- Frame Type:
- FD
- Maximum AC Voltage Rating:
- 600 V
- Short Description:
- 600 VAC, 175 A at 40 Deg C, 65 kA at 480 VAC, 3-Pole, FD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Country of Origin:
- Mexico
MSRP $14,503.00Surplus $1,556.68 -
Siemens HFXD63B225 Molded Case Breakers (MCCBs) EA
MSRP $17,232.00Surplus $4,650.31SKU: C15-10409 Brand: Siemens MPN: HFXD63B225 UPC: 78364331850 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10409
- TS PIK:
- 115558319
- Short Description:
- 600 VAC, 225 A, 65 kA at 480 VAC, 3-Pole, FD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Frame Type:
- FD
- Country of Origin:
- Mexico
- Maximum AC Voltage Rating:
- 600 V
- Series:
- HFXD6
- Installation/Operator:
- SiemensAG_00224_INST.pdf
- Size:
- 4.5 Inch Width x 5.25 Inch Depth x 9.5 Inch Height
- Maximum DC Voltage Rating:
- 500 V
- Type:
- Molded Case, Thermal Magnetic
- Interrupting Rating:
- 25 kA at 600 VAC, 25 kA at 500 VDC
- Catalog:
- SiemensAG_01698_17_78_CAT.pdf
- Voltage Rating:
- 600 VAC 50/60 Hertz, 500 VDC
- Number of Poles:
- 3
- Current Rating:
- 225 A
MSRP $17,232.00Surplus $4,650.31 -
Siemens HFXD63B250 Molded Case Breakers (MCCBs)
MSRP $16,799.00Surplus $4,703.26Siemens HFXD63B250 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-7700 Brand: Siemens MPN: HFXD63B250 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-7700
- Maximum AC Voltage Rating:
- 600 V
- Country of Origin:
- Mexico
- Short Description:
- 600 VAC, 250 A, 65 kA at 480 VAC, 3-Pole, FD Frame, Thermal Magnetic Trip Unit, Non-Interchangeable Trip, Molded Case Circuit Breaker
- Catalog:
- SiemensAG_01698_17_78_CAT.pdf
- Voltage Rating:
- 600 VAC, 500 VDC
- Frame Type:
- FD
- Type:
- Molded Case, Thermal Magnetic
- Maximum DC Voltage Rating:
- 500 V
- Installation/Operator:
- SiemensAG_00224_INST.pdf
- Size:
- 4.5 Inch Width x 5.25 Inch Depth x 9.5 Inch Height
- Current Rating:
- 250 A
- Terminal Type:
- Line and Load Lug
- Number of Poles:
- 3
- Interrupting Rating:
- 25 kA at 600 VAC, 25 kA at 500 VDC
MSRP $16,799.00Surplus $4,703.26 -
Siemens HFXD63B250L Molded Case Breakers (MCCBs)
MSRP $18,708.00Surplus $2,463.92SKU: C15-7670 Brand: Siemens MPN: HFXD63B250L UPC: 78364308452 Shipping Weight: 9.25 lbs. Shipping Height: 6.00 In. Shipping Length: 11.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7670
- TS PIK:
- 115558321
- Short Description:
- BRKR HFD6 3P 600V 250A FX LUG
- Country of Origin:
- Mexico
MSRP $18,708.00Surplus $2,463.92 -
Siemens HGB1B015B Molded Case Breakers (MCCBs) 1P 277V
MSRP $698.00Surplus $119.01SKU: C15-6214 Brand: Siemens MPN: HGB1B015B UPC: 88762121935 Shipping Weight: 0.85 lbs. Shipping Height: 2.00 In. Shipping Length: 8.00 In. Shipping Width: 4.00 In...- SKU:
- C15-6214
- TS PIK:
- 125309186
- Voltage Rating:
- 347 VAC 50/60 Hertz
- Number of Poles:
- 1
- Current Rating:
- 15 A
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, High Breaking Capacity
- Short Description:
- BRKR HGB 15A 1P 277V 35K LD LUG
- Interrupting Rating:
- 14 kA at 347 VAC
- Catalog:
- SiemensAG_01796_7_7_7_33_CAT.pdf
- Country of Origin:
- Mexico
MSRP $698.00Surplus $119.01 -
Siemens HGB1B030B Molded Case Breakers (MCCBs) EA
MSRP $900.00Surplus $251.16SKU: C15-10410 Brand: Siemens MPN: HGB1B030B UPC: 88762121849 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10410
- TS PIK:
- 125309185
- Country of Origin:
- Mexico
- Current Rating:
- 30 A
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, High Breaking Capacity
- Number of Poles:
- 1
- Catalog:
- SiemensAG_01796_7_7_7_33_CAT.pdf
- Voltage Rating:
- 347 VAC 50/60 Hertz
- Interrupting Rating:
- 14 kA at 347 VAC
MSRP $900.00Surplus $251.16 -
Siemens HGB2B015B Molded Case Breakers (MCCBs) EA
MSRP $2,100.00Surplus $579.56SKU: C15-10414 Brand: Siemens MPN: HGB2B015B UPC: 88762121961 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10414
- TS PIK:
- 125309198
- Catalog:
- SiemensAG_01796_7_7_7_33_CAT.pdf
- Country of Origin:
- Mexico
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, High Breaking Capacity
- Number of Poles:
- 2
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC/125/250 VDC
- Current Rating:
- 15 A
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz, 125/250 VDC
MSRP $2,100.00Surplus $579.56 -
Siemens HGB2B020B Molded Case Breakers (MCCBs) EA
MSRP $2,100.00Surplus $579.56SKU: C15-10415 Brand: Siemens MPN: HGB2B020B UPC: 88762121962 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10415
- TS PIK:
- 125309199
- Country of Origin:
- Mexico
- Current Rating:
- 20 A
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz, 125/250 VDC
- Number of Poles:
- 2
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC/125/250 VDC
- Catalog:
- SiemensAG_01796_7_7_7_33_CAT.pdf
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, High Breaking Capacity
MSRP $2,100.00Surplus $579.56 -
Siemens HGB2B030B Molded Case Breakers (MCCBs) EA
MSRP $2,100.00Surplus $579.56SKU: C15-10417 Brand: Siemens MPN: HGB2B030B UPC: 88762121964 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10417
- TS PIK:
- 125309201
- Country of Origin:
- Mexico
MSRP $2,100.00Surplus $579.56 -
Siemens HGB2B050B Molded Case Breakers (MCCBs) EA
MSRP $2,062.00Surplus $571.20SKU: C15-10420 Brand: Siemens MPN: HGB2B050B UPC: 88762121968 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10420
- TS PIK:
- 125309205
- Current Rating:
- 50 A
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz, 125/250 VDC
- Number of Poles:
- 2
- Catalog:
- SiemensAG_01796_7_7_7_33_CAT.pdf
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, High Breaking Capacity
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC/125/250 VDC
- Country of Origin:
- Mexico
MSRP $2,062.00Surplus $571.20 -
Siemens HGB2B060B Molded Case Breakers (MCCBs) EA
MSRP $2,100.00Surplus $579.56SKU: C15-10421 Brand: Siemens MPN: HGB2B060B UPC: 88762121969 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10421
- TS PIK:
- 125309206
- Country of Origin:
- Mexico
MSRP $2,100.00Surplus $579.56 -
Siemens HGB2B070B Molded Case Breakers (MCCBs) EA
MSRP $2,400.00Surplus $664.09SKU: C15-10422 Brand: Siemens MPN: HGB2B070B UPC: 88762121970 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10422
- TS PIK:
- 125309207
- Country of Origin:
- Mexico
MSRP $2,400.00Surplus $664.09