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 MBKQR1A Circuit Breaker Accessories EA
MSRP $750.00Surplus $319.20Siemens MBKQR1A Circuit Breaker Accessories EA​ ARCA SKU: C15-2431 Brand: Siemens MPN: MBKQR1A UPC: 804766162107 Shipping Weight: 2.40 lbs. Shipping Height: 4.50 In. Shipping...- SKU:
- C15-2431
- Short Description:
- RP1 KIT QR MAIN/SUBFEED BREAKER 1PH
MSRP $750.00Surplus $319.20 -
Siemens MBKVAM3150A Molded Case Breakers (MCCBs)
MSRP $1,675.00Surplus $663.13SKU: C15-11970 Brand: Siemens MPN: MBKVAM3150A UPC: Shipping Weight: 9.85 lbs. Shipping Height: 10.00 In. Shipping Length: 16.00 In. Shipping Width: 10.00 In...- SKU:
- C15-11970
- Short Description:
- RP1 150A MB KIT, 35kA 3PH 3VA52
- Country of Origin:
- CZE
MSRP $1,675.00Surplus $663.13 -
Siemens MBKVAM3225A Molded Case Breakers (MCCBs)
MSRP $2,074.00Surplus $614.85SKU: C15-11973 Brand: Siemens MPN: MBKVAM3225A UPC: Shipping Weight: 9.95 lbs. Shipping Height: 10.00 In. Shipping Length: 15.00 In. Shipping Width: 10.00 In...- SKU:
- C15-11973
- Country of Origin:
- CZE
- Short Description:
- RP1 225A MB KIT, 35kA 3PH 3VA52
MSRP $2,074.00Surplus $614.85 -
Siemens MD62F800 Molded Case Breakers (MCCBs)
MSRP $7,789.00Surplus $1,548.42SKU: C15-7488 Brand: Siemens MPN: MD62F800 UPC: 78364321449 Shipping Weight: 45.05 lbs. Shipping Height: 10.00 In. Shipping Length: 17.00 In. Shipping Width: 13.00 In...- SKU:
- C15-7488
- TS PIK:
- 120152381
- Country of Origin:
- Mexico
MSRP $7,789.00Surplus $1,548.42 -
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Siemens MD63B800 Molded Case Breakers (MCCBs) 3P 800A 600V
MSRP $20,311.00Surplus $7,311.96Siemens MD63B800 Molded Case Breakers (MCCBs) 3P 800A 600V​ ARCA SKU: C15-7623 Brand: Siemens MPN: MD63B800 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-7623
MSRP $20,311.00Surplus $7,311.96 -
Siemens MD63F800 Molded Case Breakers (MCCBs) MD 3P 800A 600V 50/60Hz 3Ph
MSRP $6,952.00Surplus $3,374.21SKU: C15-1443 Brand: Siemens MPN: MD63F800 UPC: 783643214507 Shipping Weight: 48.50 lbs. Shipping Height: 10.00 In. Shipping Length: 19.00 In. Shipping Width: 12.00...- SKU:
- C15-1443
- Type:
- MD Frame
- Size:
- 16 Inch L x 9 Inch W x 6 Inch D
- Volts:
- 600 VAC/500 VDC
- Amps:
- 32 A
- Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 VAC
- Interrupting Rating:
- 50 kA at 480 VAC
- Interrupting Rating:
- 25 kA at 600 VAC/500 VDC (UL)
- Interrupting Rating:
- 65 kA at 220/240 VAC
- Interrupting Rating:
- 40 kA at 380/415 VAC (IEC)
- Terminal Type:
- Line Lug
- Terminal Type:
- Load Lug
- Maximum AC Voltage Rating:
- 600 V
- Maximum DC Voltage Rating:
- 500 V
- Short Description:
- 600 VAC, 500 VDC, 500 to 800 A, 25 kA, 3-Pole, Molded Case, Thermal Magnetic, MD Frame
- Catalog:
- SiemensAG_00564_7_3-7_5_7_129_CAT.pdf
- Number of Poles:
- 3
- Current Rating:
- 800 A
- Voltage Rating:
- 600 VAC
- Frame Type:
- MD
- Country of Origin:
- Mexico
MSRP $6,952.00Surplus $3,374.21 -
Siemens MD63T500 Molded Case Breakers (MCCBs) EA
MSRP $10,500.00Surplus $2,817.46SKU: C15-10496 Brand: Siemens MPN: MD63T500 UPC: 78364321481 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10496
- TS PIK:
- 21367729
- Country of Origin:
- Mexico
MSRP $10,500.00Surplus $2,817.46 -
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Siemens MP115DF Miniature Circuit Breakers (MCBs) MP 1P 15A 120V 50/60Hz 1Ph
MSRP $79.00Surplus $53.59Siemens MP115DF Miniature Circuit Breakers (MCBs) MP 1P 15A 120V 50/60Hz 1Ph​ ARCA SKU: C15-4047 Brand: Siemens MPN: MP115DF UPC: 887621817244 Shipping Weight: 0.30 Shipping Height: 1.00...- SKU:
- C15-4047
- Approval:
- UL 1699/943
- Size:
- 3 Inch W x 1 Inch D x 4.5 Inch H
- Volts:
- 120 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Mounting:
- Plug-In
- Interrupting Rating:
- 10 kA
- Application:
- HACR
- Application:
- 120 VAC Fluorescent Lighting
- Wire Size:
- 14 to 10 AWG (Copper)
- Wire Size:
- 12 to 8 AWG (Aluminum)
- Poles:
- 1
- Short Description:
- 120 VAC, 15 A, 10 kA, 1-Pole, Plug-In Mount, MP-GAT2 Frame, AFCI/GFCI
- Data Sheet:
- SiemensAG_06571_1_DATA.pdf
MSRP $79.00Surplus $53.59 -
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Siemens MP130GF Miniature Circuit Breakers (MCBs) MP 1P 30A 230V 50/60Hz 1Ph
MSRP $181.00Surplus $53.96Siemens MP130GF Miniature Circuit Breakers (MCBs) MP 1P 30A 230V 50/60Hz 1Ph​ ARCA SKU: C15-3970 Brand: Siemens MPN: MP130GF UPC: 040892522259 Shipping Weight: 1.05 Shipping Height: 3.00...- SKU:
- C15-3970
- Type:
- Circuit Interrupter
- Approval:
- UL 489/943
- Approval:
- CSA C22.2
- Size:
- 1 Inch W x 2.66 Inch D x 2.84 Inch H
- Volts:
- 120 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 1
- Mounting:
- Plug-In
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 10 AWG (Copper)
- Wire Size:
- 12 to 8 AWG (Aluminum)
- Trip Sensitivity:
- 5 Milliampere
- Short Description:
- 120 VAC, 30 A, 10 kA, 5 mA, 1-Pole, Plug-In Mount, MP-GT Frame, GFCI, Personal Protect
- Catalog:
- SiemensAG_01825_1_3_CAT.pdf
- Data Sheet:
- SiemensAG_06580_1_DATA.pdf
MSRP $181.00Surplus $53.96 -
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Siemens MP1515N Miniature Circuit Breakers (MCBs) MP 1P 15A 120/240V 60Hz
MSRP $235.80Surplus $48.09Siemens MP1515N Miniature Circuit Breakers (MCBs) MP 1P 15A 120/240V 60Hz​ ARCA SKU: C15-2426 Brand: Siemens MPN: MP1515N UPC: 040892280630 Shipping Weight: 0.36 Shipping Height: 3.50 In...- SKU:
- C15-2426
- Type:
- Duplex
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 120 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 1
- Mounting:
- Plug-In
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 8 AWG (Copper)
- Wire Size:
- 12 to 8 AWG (Aluminum)
- Short Description:
- 120 V, 15/15 A, 10 kA, 1-Pole, Load Lug Terminal, MH-T Frame, Thermal Magnetic, Low Voltage, Miniature
- Data Sheet:
- SiemensAG_01518_1_DATA.pdf
MSRP $235.80Surplus $48.09 -
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Siemens MP1520 Miniature Circuit Breakers (MCBs) MP 1P 15/20A 120/240V 60Hz
MSRP $120.00Surplus $23.48Siemens MP1520 Miniature Circuit Breakers (MCBs) MP 1P 15/20A 120/240V 60Hz​ ARCA SKU: C15-2425 Brand: Siemens MPN: MP1520 UPC: 040892521993 Shipping Weight: 0.36 Shipping Height: 3.50 In...- SKU:
- C15-2425
- Type:
- Duplex
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 120 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 1
- Mounting:
- Plug-In
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 8 AWG (Copper)
- Wire Size:
- 12 to 8 AWG (Aluminum)
- Short Description:
- 120 VAC, 15/20 A, 10 kA, (2) 1-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, Plug-In Mount, MH-T Frame, Duplex, Thermal Magnetic Trip Unit
- Data Sheet:
- SiemensAG_06586_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
MSRP $120.00Surplus $23.48 -
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Siemens MP2110 Miniature Circuit Breakers (MCBs) MP 2P 110A 120/240V
MSRP $90.00Surplus $72.45SKU: C15-2759 Brand: Siemens MPN: MP2110 UPC: 040892281163 Shipping Weight: 0.75 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 2.00 In...- SKU:
- C15-2759
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Size:
- 2 Inch W x 3 Inch D x 3-1/8 Inch H
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 110 A, 10 kA, 2-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit
- Current Rating:
- 110 A
- Number of Poles:
- 2
- Data Sheet:
- SiemensAG_06594_1_DATA.pdf
- Voltage Rating:
- 240 VAC
MSRP $90.00Surplus $72.45 -
Siemens MP215AFC Molded Case Breakers (MCCBs) MP-AT 2P 15A 240V 50/60Hz 1Ph
MSRP $411.50Surplus $57.36Siemens MP215AFC Molded Case Breakers (MCCBs) MP-AT 2P 15A 240V 50/60Hz 1Ph​ ARCA SKU: C15-1483 Brand: Siemens MPN: MP215AFC UPC: 040892148930 Shipping Weight: 0.72 Shipping Height: 3.50...- SKU:
- C15-1483
- Frame Type:
- BRkR
- Voltage Rating:
- 240 V
- Current Rating:
- 15 A
- Number of Poles:
- 2
- Interrupting Rating:
- 22kA at 240 VAC
- Short Description:
- BRKR MP-AT2 AFCI 2P 240V 15A 10KA
- Country of Origin:
- PHL
MSRP $411.50Surplus $57.36 -
Siemens MP220 Miniature Circuit Breakers (MCBs) MP 2P 20A 240V
MSRP $130.00Surplus $12.98Siemens MP220 Miniature Circuit Breakers (MCBs) MP 2P 20A 240V​ ARCA SKU: C15-3686 Brand: Siemens MPN: MP220 UPC: 040892518948 Shipping Weight: 0.55 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-3686
- Series:
- Type MP-T
- Type:
- Common Trip
- Approval:
- UL
- Size:
- 2 Inch W x 3 Inch D x 3-1/8 Inch H
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 16 to 14 AWG (Aluminum/Copper)
- Short Description:
- 120/240 V, 20 A, 10 kA, 2-Pole, MP-T Frame
- Data Sheet:
- SiemensAG_01523_1_DATA.pdf
- Current Rating:
- 20 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $130.00Surplus $12.98 -
Siemens MP240 Miniature Circuit Breakers (MCBs) MP 2P 40A 240V EA
MSRP $144.90Surplus $12.01Siemens MP240 Miniature Circuit Breakers (MCBs) MP 2P 40A 240V EA​ ARCA SKU: C15-2820 Brand: Siemens MPN: MP240 UPC: 040892518979 Shipping Weight: 0.60 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-2820
- Series:
- MP-T
- Type:
- Common Trip
- Approval:
- UL
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 6 AWG (Copper)
- Wire Size:
- 8 to 4 AWG (Aluminum)
- Short Description:
- 120/240 V, 40 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Voltage, Miniature
- Data Sheet:
- SiemensAG_01525_1_DATA.pdf
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $144.90Surplus $12.01 -
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Siemens MP280 Miniature Circuit Breakers (MCBs)
MSRP $423.90Surplus $120.84Siemens MP280 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-1468 Brand: Siemens MPN: MP280 UPC: Shipping Weight: 0.64 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-1468
MSRP $423.90Surplus $120.84 -
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Siemens MP315 Miniature Circuit Breakers (MCBs)
MSRP $486.90Surplus $75.75Siemens MP315 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-1469 Brand: Siemens MPN: MP315 UPC: 04089223765 Shipping Weight: 0.90 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-1469
- TS PIK:
- 21029189
MSRP $486.90Surplus $75.75 -
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Siemens MP320 Miniature Circuit Breakers (MCBs) MP 3P 20A 240V
MSRP $512.10Surplus $71.01SKU: C15-4186 Brand: Siemens MPN: MP320 UPC: 04089223780 Shipping Weight: 0.90 lbs. Shipping Height: 3.40 In. Shipping Length: 3.00 In. Shipping Width: 3.70 In...- SKU:
- C15-4186
- Series:
- MP-T
- Type:
- Common Trip
- Approval:
- UL
- Size:
- 3 Inch W x 3 Inch D x 3 1/8 Inch H
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 3
- Mounting:
- Plug-In
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 16 to 14 AWG (Copper/Aluminum)
- Short Description:
- 240 VAC, 20 A, 10 kA, 3-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit
- Data Sheet:
- SiemensAG_06646_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
MSRP $512.10Surplus $71.01 -
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Siemens MP330 Miniature Circuit Breakers (MCBs) MP 3P 30A 240V
MSRP $438.00Surplus $123.53Siemens MP330 Miniature Circuit Breakers (MCBs) MP 3P 30A 240V​ ARCA SKU: C15-2911 Brand: Siemens MPN: MP330 UPC: 040892238006 Shipping Weight: 0.90 Shipping Height: 3.50 In. Shipping...- SKU:
- C15-2911
- Type:
- Thermal Magnetic
- Approval:
- UL
- Approval:
- CSA
- Volts:
- 240 V
- Amps:
- 32 A
- Used On:
- Load Center
- Poles:
- 3
- Interrupting Rating:
- 10 kA
- Short Description:
- 240 VAC, 30 A, 10 kA, 3-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit
- Data Sheet:
- SiemensAG_06648_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
MSRP $438.00Surplus $123.53 -
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Siemens MP390 Miniature Circuit Breakers (MCBs) MP 3P 90A 240V
MSRP $653.00Surplus $147.92Siemens MP390 Miniature Circuit Breakers (MCBs) MP 3P 90A 240V​ ARCA SKU: C15-3394 Brand: Siemens MPN: MP390 UPC: 040892238709 Shipping Weight: 1.05 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-3394
- Series:
- MP-T
- Type:
- Common Trip
- Approval:
- UL
- Size:
- 3 Inch W x 3 Inch D x 3 1/8 Inch H
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 3
- Mounting:
- Plug-In
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 240 VAC, 90 A, 10 kA, 3-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit
- Data Sheet:
- SiemensAG_06657_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
MSRP $653.00Surplus $147.92
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.
