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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Eaton BRHH2125 Miniature Circuit Breakers (MCBs) 2P 125A 240V EA
MSRP $2,248.01Surplus $275.20Eaton BRHH2125 Miniature Circuit Breakers (MCBs) 2P 125A 240V EA​ ARCA SKU: C15-1323 Brand: Eaton MPN: BRHH2125 UPC: 786676377003 Shipping Weight: 0.75 lbs. Shipping Height: 2.00 In...- SKU:
- C15-1323
- Approval:
- UL 489
- Amps:
- 125 A
- Interrupting Rating:
- 42 kA
- Mounting:
- Plug-On
- Poles:
- 2
- Terminal Type:
- Thermal Magnetic
- Type:
- Common Trip
- Used On:
- BR Series Loadcenter
- Volts:
- 120/240 VAC
- Gauge:
- 4 to 2/0 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 125 A, 42 kA, 2-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic, Circuit Breaker
- Series:
- BR
- TS PIK:
- 21494076
- Voltage Rating:
- 120/240 VAC
- Catalog:
- Eaton_00001_V1T1_83_V1T1_84_CAT.pdf
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Number of Poles:
- 2
- Current Rating:
- 125 A
- Country of Origin:
- Dominican Republic
MSRP $2,248.01Surplus $275.20 -
Siemens Q2125 Miniature Circuit Breakers (MCBs) 2P 125A
MSRP $758.24Surplus $74.87Siemens Q2125 Miniature Circuit Breakers (MCBs) 2P 125A​ ARCA SKU: C15-6098 Brand: Siemens MPN: Q2125 UPC: 66286200404 Shipping Weight: 2.70 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6098
- TS PIK:
- 115277069
- Catalog:
- SiemensAG_01829_2_9_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 125 A, 10 kA Interrupt, 2-Pole, Plug-In Mount, QP/MP-Frame, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Country of Origin:
- Mexico
- Type:
- Common Trip, Thermal Magnetic, Miniature
- Size:
- 2 Inch Width x 3 Inch Depth x 3 Inch Height
- Mounting:
- Plug-On
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Current Rating:
- 125 A
- Used On:
- Load Center
- Installation/Operator:
- SiemensAG_00053_INST.pdf
- Data Sheet:
- SiemensAG_00870_1_2_DATA.pdf
- Approval:
- UL 489, CSA
MSRP $758.24Surplus $74.87 -
Eaton BR2125 Miniature Circuit Breakers (MCBs) BR 2P 125A 240V 50/60Hz 1Ph EA
MSRP $701.65Surplus $87.99Eaton BR2125 Miniature Circuit Breakers (MCBs) BR 2P 125A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-1219 Brand: Eaton MPN: BR2125 UPC: 786676367059 Shipping Weight: 0.75 lbs. Shipping...- SKU:
- C15-1219
- Series:
- BR
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 125 A, 10 kA, 2-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_56_V1T1_84_CAT.pdf
- TS PIK:
- 21493879
- Number of Poles:
- 2
- Current Rating:
- 125 A
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Dominican Republic
MSRP $701.65Surplus $87.99 -
Eaton BRHX2125 Miniature Circuit Breakers (MCBs) BR 2P 125A 240V 50/60Hz 1Ph EA
MSRP $1,490.62Surplus $136.08SKU: C15-3959 Brand: Eaton MPN: BRHX2125 UPC: 786689041670 Shipping Weight: 0.90 lbs. Shipping Height: 3.00 In. Shipping Length: 3.10 In. Shipping Width: 2.20 In...- SKU:
- C15-3959
- Amps:
- 125 A
- Interrupting Rating:
- 22 kA
- Mounting:
- Plug-On
- Poles:
- 2
- Size:
- 2.2 Inch Width x 3.1 Inch Depth x 3 Inch Height
- Terminal Type:
- Thermal Magnetic
- Type:
- Non-Interchangeable Trip
- Used On:
- BR Load Center
- Volts:
- 120/240 V
- Gauge:
- 4 to 2/0 AWG Copper/Aluminum at 60 Deg C
- Specification/Technical:
- Eaton_00467_1_SPEC.pdf
- Current Rating:
- 125 A
- Catalog:
- Eaton_00071_V1T1_83_V1T1_84_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Wire Size:
- 4 to 2/0 AWG Copper/Aluminum at 60 Deg C
- Short Description:
- EATON BR THERMAL MAGNETIC CIRCUIT BREAkER,QUICkLAG TYPE BRHX CIRCUIT BREAkER,125
- Country of Origin:
- Dominican Republic
MSRP $1,490.62Surplus $136.08 -
Eaton BRX2125 Miniature Circuit Breakers (MCBs) BR 2P 125A 240V 50/60Hz 1Ph
MSRP $3,471.32Surplus $144.69SKU: C15-1359 Brand: Eaton MPN: BRX2125 UPC: 786685926827 Shipping Weight: 0.50 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 2.00 In...- SKU:
- C15-1359
- Approval:
- UL E7819
- Amps:
- 125 A
- Interrupting Rating:
- 65 kA
- Mounting:
- Plug-On
- Poles:
- 2
- Size:
- 2 Inch Width x 3 Inch Depth x 3 Inch Height
- Terminal Type:
- Thermal Magnetic
- Type:
- Common Trip
- Used On:
- BR Load Center
- Volts:
- 120/240 VAC 50/60 Hertz
- Gauge:
- 4 to 2/0 AWG Copper/Aluminum at 60/75 Deg C
- Catalog:
- Eaton_00071_V1T1_83_V1T1_84_CAT.pdf
- Wire Size:
- 4 to 2/0 AWG Copper/Aluminum at 60/75 Deg C
- Current Rating:
- 125 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Short Description:
- EATON BR THERMAL MAGNETIC CIRCUIT BREAkER, THERMAL-MAGNETIC CIRCUIT BREAkER,125
- Series:
- BR
- Country of Origin:
- Dominican Republic
MSRP $3,471.32Surplus $144.69 -
Eaton CH2125 Miniature Circuit Breakers (MCBs) CH 2P 125A 120V 50/60Hz 1Ph EA
MSRP $858.03Surplus $231.54SKU: C15-1396 Brand: Eaton MPN: CH2125 UPC: 782113298788 Shipping Weight: 0.60 lbs. Shipping Height: 4.00 In. Shipping Length: 4.00 In. Shipping Width: 2.00 In...- SKU:
- C15-1396
- Series:
- CH
- Type:
- Main
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- CH Series Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 125 A, 10 kA, 2-Pole, Plug-On Mount, Common Trip, Thermal Magnetic
- Catalog:
- Eaton_00071_V1T1_36_V1T1_37_CAT.pdf
- TS PIK:
- 534871
- Current Rating:
- 125 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Dominican Republic
MSRP $858.03Surplus $231.54 -
Square D HOM2125 Miniature Circuit Breakers (MCBs) EA
MSRP $502.32Surplus $217.26Square D HOM2125 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-8948 Brand: Square D MPN: HOM2125 UPC: 785901065791 Shipping Weight: 0.85 lbs. Shipping Height: 4.00 In...- SKU:
- C15-8948
- Type:
- Standard, Common Trip
- Terminal Type:
- Box Lug
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Plug-On
- Current Rating:
- 125 A
- Number of Poles:
- 1
- Interrupting Rating:
- 10 kA
- Used On:
- Load Center
- Wire Size:
- 4 to 2/0 AWG (Aluminum/Copper)
- Size:
- 1 Inch Width x 2.98 Inch Depth x 3.13 Inch Height
- Short Description:
- 120/240 VAC, 125 A, 10 kA Interrupt, 2-Pole, 4 to 2/0 AWG Aluminum/Copper, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric_00257_1_19_1_37_1_39_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13438_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00099_INST.pdf
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $502.32Surplus $217.26 -
Eaton BJ2125 Molded Case Breakers (MCCBs) BJ 2P 125A 240V 50/60Hz 2Ph
MSRP $925.68Surplus $667.04SKU: C15-1131 Brand: Eaton MPN: BJ2125 UPC: 786676367004 Shipping Weight: 1.80 lbs. Shipping Height: 3.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In...- SKU:
- C15-1131
- Type:
- BJ
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Plug-On
- Current Rating:
- 125 A
- Number of Poles:
- 2
- Wire Size:
- 2 AWG to 300 KCMIL (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 125 A, 10 kA, 2-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Main
- Catalog:
- Eaton_36620_V1T1_83_V1T1_90_V1T1_91_CAT.pdf
- Specification/Technical:
- Eaton_37532_1_2_SPEC.pdf
- Interrupting Rating:
- 10 kA
- Series:
- BJ
- Used On:
- BR Series Loadcenter
- Approval:
- UL 489
- Country of Origin:
- Dominican Republic
MSRP $925.68Surplus $667.04 -
Eaton BJ3125 Molded Case Breakers (MCCBs) BJ 3P 125A 240V 50/60Hz 3Ph
MSRP $2,870.86Surplus $1,376.00SKU: C15-3023 Brand: Eaton MPN: BJ3125 UPC: 786676368308 Shipping Weight: 3.15 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 4.00 In...- SKU:
- C15-3023
- Frame Type:
- BJ1-Inch
- Voltage Rating:
- 240 VAC
- Current Rating:
- 125 A
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA
- Type:
- Thermal Magnetic
- Size:
- 2 AWG to 300 KCMIL (Aluminum/Copper)
- Short Description:
- 240 VAC, 125 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Main
- Catalog:
- Eaton_36620_V1T1_83_V1T1_90_V1T1_91_CAT.pdf
- Specification/Technical:
- Eaton_37537_1_2_SPEC.pdf
- Used On:
- BR Series Loadcenter
- Mounting:
- Plug-On
- Series:
- BJ
- Wire Size:
- 2 AWG to 300 KCMIL (Aluminum/Copper)
- Approval:
- UL 489
- Country of Origin:
- United States
MSRP $2,870.86Surplus $1,376.00 -
Eaton BRH2125 Miniature Circuit Breakers (MCBs) EA
MSRP $1,478.44Surplus $185.82SKU: C15-1304 Brand: Eaton MPN: BRH2125 UPC: 78667637395 Shipping Weight: 0.60 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 3.00 In...- SKU:
- C15-1304
- Series:
- BRH
- Type:
- Thermal Magnetic
- Type:
- Common/Independent Trip
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 125 A, 22 kA, 2-Pole, Plug-On Mount, Common Trip
- Catalog:
- Eaton_36620_V1T1_56_V1T1_84_CAT.pdf
- TS PIK:
- 21494037
- Number of Poles:
- 2
- Current Rating:
- 125 A
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Dominican Republic
MSRP $1,478.44Surplus $185.82 -
Eaton BW2125 Main Breakers
MSRP $865.79Surplus $289.68SKU: C15-3006 Brand: Eaton MPN: BW2125 UPC: 786676460361 Shipping Weight: 2.55 lbs. Shipping Height: 5.00 In. Shipping Length: 6.00 In. Shipping Width: 6.00 In...- SKU:
- C15-3006
- Series:
- BW
- Type:
- Main
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 2 AWG to 300 KCMIL (Copper/Aluminum)
- Current Rating:
- 125 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 125 A, 10 kA, 2-Pole, Plug-On Mount, Main, Circuit Breaker
- Catalog:
- Eaton_36620_V1T4_37_V1T4_38_V1T4_56_V1T4_60_CAT.pdf
- TS PIK:
- 109640220
- Country of Origin:
- United States
MSRP $865.79Surplus $289.68 -
Siemens MBK125A Molded Case Breakers (MCCBs) MBK 2P 125A 240V 50/60Hz 1Ph EA
MSRP $1,856.81Surplus $138.04Siemens 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 $1,856.81Surplus $138.04 -
Siemens Q2125B Miniature Circuit Breakers (MCBs)
MSRP $462.84Surplus $307.79SKU: C15-10531 Brand: Siemens MPN: Q2125B UPC: 78364314870 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10531
- TS PIK:
- 21366657
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Country of Origin:
- MEX
- Interrupting Rating:
- 10 kA
- Used On:
- Loadcenter
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Size:
- 4 Inch W x 4.54 Inch H
- Terminal Type:
- Load Lug
- Current Rating:
- 125 A
- Wire Size:
- 1 AWG (Copper), 2/0 AWG (Aluminum)
- Mounting:
- Plug-On
- Short Description:
- 120/240 VAC, 125 A, 10 kA, 2-Pole, 1 AWG Copper/2/0 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QPP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Data Sheet:
- SiemensAG_06990_1_DATA.pdf
- Catalog:
- SiemensAG_00562_1_45-1_47_CAT.pdf
- Approval:
- UL 489, CSA C22.2
MSRP $462.84Surplus $307.79 -
Siemens Q2125H Miniature Circuit Breakers (MCBs)
MSRP $1,927.60Surplus $293.36SKU: C15-7632 Brand: Siemens MPN: Q2125H UPC: 78364315640 Shipping Weight: 0.70 lbs. Shipping Height: 3.00 In. Shipping Length: 2.00 In. Shipping Width: 3.00 In...- SKU:
- C15-7632
- TS PIK:
- 120632077
- Type:
- Thermal Magnetic
- Voltage Rating:
- 120/240 V
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_06991_1_DATA.pdf
- Current Rating:
- 125 A
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Short Description:
- 120/240 VAC, 125 A, 22 kA, 2-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QPH Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Interrupting Rating:
- 22 kA
- Used On:
- Load Centre Main, Feeder
- Number of Poles:
- 2
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $1,927.60Surplus $293.36 -
Square D QO2125 Miniature Circuit Breakers (MCBs)
MSRP $582.64Surplus $114.35Square D QO2125 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6533 Brand: Square D MPN: QO2125 UPC: 78590103109 Shipping Weight: 0.75 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-6533
- TS PIK:
- 109595138
- Mounting:
- Plug-On
- Type:
- Common Trip, Miniature, Standard
- Data Sheet:
- SchneiderElectric-SquareD_53476_1_2_DATA.pdf
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Series:
- QO
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Number of Poles:
- 2
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Current Rating:
- 125 A
- Short Description:
- 120/240 VAC 50/60 Hz, 125 A, 10 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $582.64Surplus $114.35 -
Square D QO2125VH Miniature Circuit Breakers (MCBs)
MSRP $1,407.58Surplus $556.01SKU: C15-10882 Brand: Square D MPN: QO2125VH UPC: 78590105494 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10882
- TS PIK:
- 111081459
- Number of Poles:
- 2
- Interrupting Rating:
- 22 kA
- Mounting:
- Plug-On
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Terminal Type:
- Box Lug
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Current Rating:
- 125 A
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53479_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 125 A, 22 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Type:
- Common Trip, Miniature, Standard
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $1,407.58Surplus $556.01
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