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
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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 -
Siemens MQ130 Miniature Circuit Breakers (MCBs) MQ 1P 30A 120/240V 50/60Hz 1Ph
MSRP $66.60Surplus $3.26Siemens MQ130 Miniature Circuit Breakers (MCBs) MQ 1P 30A 120/240V 50/60Hz 1Ph​ ARCA SKU: C15-3141 Brand: Siemens MPN: MQ130 UPC: 040892528169 Shipping Weight: 0.25 Shipping Height: 1.00...- SKU:
- C15-3141
- Type:
- Common Trip
- Approval:
- UL
- Volts:
- 120 V
- Amps:
- 30 A
- Used On:
- Loadcenter
- Used On:
- Type QO Circuit Breaker
- Used On:
- Type QO Panelboard
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Short Description:
- 30 A, 10 kA, 1-Pole, 3/4" Format, MSQ Frame
- Data Sheet:
- SiemensAG_06677_1_DATA.pdf
- Voltage Rating:
- 120 VAC
- Number of Poles:
- 1
- Current Rating:
- 30 A
- Series:
- MSQ
- Country of Origin:
- Mexico
MSRP $66.60Surplus $3.26 -
Siemens MXD63S800A Molded Case Breakers (MCCBs)
MSRP $14,340.00Surplus $2,031.58SKU: C15-7489 Brand: Siemens MPN: MXD63S800A UPC: 78364321533 Shipping Weight: 59.15 lbs. Shipping Height: 10.00 In. Shipping Length: 16.00 In. Shipping Width: 13.00...- SKU:
- C15-7489
- TS PIK:
- 120152400
- Type:
- Molded Case, Low Vage, Magnetic Trip, Standard Breaking Capacity
- Interrupting Rating:
- 25 kA at 600 VAC/500 VDC
- Maximum DC Voltage Rating:
- 500 V
- Maximum AC Voltage Rating:
- 600 V
- Current Rating:
- 800 A
- Catalog:
- SiemensAG_09175_17_100_17_117_CAT.pdf
- Terminal Type:
- Not Included
- Voltage Rating:
- 600 VAC 50/60 Hertz, 500 VDC
- Installation/Operator:
- SiemensAG_00592_INST.pdf
- Number of Poles:
- 3
- Frame Type:
- MD
- Size:
- 9 Inch Width x 6 Inch Depth x 16 Inch Height
- Country of Origin:
- Mexico
MSRP $14,340.00Surplus $2,031.58 -
Siemens N125X Circuit Breaker Accessories EA
MSRP $188.50Surplus $46.28Siemens N125X Circuit Breaker Accessories EA​ ARCA SKU: C15-9508 Brand: Siemens MPN: N125X UPC: 19512521049 Shipping Weight: 0.25 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-9508
- TS PIK:
- 129211476
- Short Description:
- NEUTRAL KIT 3VA 125A 100PERCENT CB ENCL
- Country of Origin:
- Mexico
MSRP $188.50Surplus $46.28 -
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Siemens ND62B120 Molded Case Breakers (MCCBs) 2P 1200A 600V
MSRP $27,922.00Surplus $10,051.92Siemens ND62B120 Molded Case Breakers (MCCBs) 2P 1200A 600V​ ARCA SKU: C15-7624 Brand: Siemens MPN: ND62B120 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-7624
MSRP $27,922.00Surplus $10,051.92 -
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Siemens ND63B120 Molded Case Breakers (MCCBs) 3P 1200A 600V
MSRP $35,570.00Surplus $12,805.20SKU: C15-7625 Brand: Siemens MPN: ND63B120 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7625
MSRP $35,570.00Surplus $12,805.20 -
Siemens ND63F120 Molded Case Breakers (MCCBs)
MSRP $17,097.00Surplus $4,424.91SKU: C15-7688 Brand: Siemens MPN: ND63F120 UPC: 78364321543 Shipping Weight: 46.90 lbs. Shipping Height: 10.00 In. Shipping Length: 19.00 In. Shipping Width: 12.00 In...- SKU:
- C15-7688
- TS PIK:
- 21333871
- Type:
- Interchangeable Trip
- Size:
- 9 Inch W x 6 Inch D x 16 Inch H
- Catalog:
- SiemensAG_01698_17_100_CAT.pdf
- Interrupting Rating:
- 25 kA at 600 VAC/500 VDC
- Voltage Rating:
- 600 VAC/500 VDC
- Number of Poles:
- 3
- Current Rating:
- 1200 A
- Short Description:
- 600 VAC, 500 VDC, 800 to 1200 A, 25 kA, 3-Pole, Interchangeable Trip, Molded Case, Thermal Magnetic, FD Frame, Circuit Breaker Frame
- Series:
- ND6
- Country of Origin:
- Mexico
MSRP $17,097.00Surplus $4,424.91 -
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Siemens ND63T120 Molded Case Breakers (MCCBs)
MSRP $15,979.00Surplus $1,945.79SKU: C15-7689 Brand: Siemens MPN: ND63T120 UPC: 78364321569 Shipping Weight: 6.20 lbs. Shipping Height: 7.00 In. Shipping Length: 10.00 In. Shipping Width: 8.00 In...- SKU:
- C15-7689
- TS PIK:
- 21333877
- Frame Type:
- ND
- Short Description:
- 600 VAC, 500 VDC, 1200 A, 25/50 kA, 3-Pole, 250 to 500 KCMIL Copper/Aluminum, Line/Load Lug Terminal, ND Frame, Thermal Magnetic, Interchangeable Molded Case Circuit Breaker Trip Unit
- Series:
- ND6
MSRP $15,979.00Surplus $1,945.79 -
Siemens NEB1B020B Molded Case Breakers (MCCBs)
MSRP $3,153.00Surplus $128.61SKU: E30-11706 Brand: Siemens MPN: NEB1B020B UPC: 78364355815 Shipping Weight: 1.05 lbs. Shipping Height: 5.00 In. Shipping Length: 7.00 In. Shipping Width: 5.00 In...- SKU:
- E30-11706
- TS PIK:
- 115459763
- Current Rating:
- 20 A
- Interrupting Rating:
- 100 kA at 120 VAC (UL 489), 85 kA at 240 VAC (UL 489), 35 kA at 277 VAC/125/250 VDC (UL 489), 22 kA at 347 VAC (UL 489), 85 kA at 240 VAC (IEC), 35 kA at 250 VDC (IEC)
- Number of Poles:
- 1
- Voltage Rating:
- 277 V
- Series:
- NEB
- Short Description:
- 240/277/347 VAC 50/60 Hz, 125/250 VDC, 20 A, 85 kA, 1-Pole, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Type:
- Thermal Magnetic, Molded Case
- Country of Origin:
- Dominican Republic
MSRP $3,153.00Surplus $128.61 -
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Siemens NEB3B020B Molded Case Breakers (MCCBs) 3P 20A
MSRP $9,787.00Surplus $2,371.67SKU: C15-7490 Brand: Siemens MPN: NEB3B020B UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7490
MSRP $9,787.00Surplus $2,371.67
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