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 BQ220230 Miniature Circuit Breakers (MCBs) 2P 20A/30A 240V EA
MSRP $236.97Surplus $39.53Eaton BQ220230 Miniature Circuit Breakers (MCBs) 2P 20A/30A 240V EA​ ARCA SKU: C15-1142 Brand: Eaton MPN: BQ220230 UPC: 786676370806 Shipping Weight: 0.75 lbs. Shipping Height: 3.00...- SKU:
- C15-1142
- Series:
- BQ
- 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:
- 14 to 4 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 20/30 A, 10 kA, 2-Pole Outer/2-Pole Center, Plug-On Mount, BQ Breaker, Independent Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_83_V1T1_87_CAT.pdf
- TS PIK:
- 21493957
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 20/30 A
- Country of Origin:
- Dominican Republic
MSRP $236.97Surplus $39.53 -
Eaton BR2030 Miniature Circuit Breakers (MCBs) 2P 20/30A EA
MSRP $148.00Surplus $38.30Eaton BR2030 Miniature Circuit Breakers (MCBs) 2P 20/30A EA​ ARCA SKU: C15-1212 Brand: Eaton MPN: BR2030 UPC: 78667600660 Shipping Weight: 0.40 lbs. Shipping Height: 4.00 In...- SKU:
- C15-1212
- Series:
- BR
- Type:
- Thermal Magnetic
- Type:
- Duplex
- Approval:
- UL 489
- Volts:
- 120 VAC
- Amps:
- 32 A
- Used On:
- BR Series Loadcenter
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120 VAC, 20/30 A, 10 kA, 1-Pole, Plug-On Mount, Duplex, Thermal Magnetic
- TS PIK:
- 116434701
- Number of Poles:
- 1
- Voltage Rating:
- 120 VAC
- Current Rating:
- 20/30 A
- Country of Origin:
- Dominican Republic
MSRP $148.00Surplus $38.30 -
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Eaton BQC220230 Miniature Circuit Breakers (MCBs) 2P 20A/30A 120V EA
MSRP $268.55Surplus $92.40Eaton BQC220230 Miniature Circuit Breakers (MCBs) 2P 20A/30A 120V EA​ ARCA SKU: C15-1165 Brand: Eaton MPN: BQC220230 UPC: 78667637185 Shipping Weight: 0.75 lbs. Shipping Height: 4.00...- SKU:
- C15-1165
- Series:
- Type BQC
- Type:
- Common Trip
- Type:
- Quadplex
- Approval:
- UL 489
- Approval:
- Federal Specification W-C375
- Volts:
- 120/240 V
- Amps:
- 32 A
- Used On:
- Type BR Loadcenter
- Poles:
- 4
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 20/30 A, 10 kA, 2-Pole Outer/2-Pole Center, Plug-On Mount, BQC Breaker, Common Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_89_CAT.pdf
- Number of Poles:
- 4
- Current Rating:
- 20/30 A
- Voltage Rating:
- 120/240 VAC
- TS PIK:
- 21493985
- Country of Origin:
- Dominican Republic
MSRP $268.55Surplus $92.40 -
Eaton BQC2302120 Miniature Circuit Breakers (MCBs) BR 2P 20A/30A 240V 50/60Hz 1Ph
MSRP $210.00Surplus $87.78Eaton BQC2302120 Miniature Circuit Breakers (MCBs) BR 2P 20A/30A 240V 50/60Hz 1Ph​ ARCA SKU: C15-3336 Brand: Eaton MPN: BQC2302120 UPC: 786676371780 Shipping Weight: 0.75 Shipping...- SKU:
- C15-3336
- Series:
- BQC
- Type:
- Common Trip
- Type:
- Quadplex
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 4
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 20/30 A, 10 kA, 1-Pole Outer Left/1-Pole Outer Right/2-Pole Center, Plug-On Mount, BQC Breaker, Common Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_89_CAT.pdf
- Current Rating:
- 20/30 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 4
- Country of Origin:
- Dominican Republic
MSRP $210.00Surplus $87.78 -
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Siemens Q3020 Miniature Circuit Breakers (MCBs) 20/30A 120V
MSRP $98.00Surplus $17.56Siemens Q3020 Miniature Circuit Breakers (MCBs) 20/30A 120V​ ARCA SKU: C15-6193 Brand: Siemens MPN: Q3020 UPC: 78364317079 Shipping Weight: 0.40 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6193
- TS PIK:
- 21366194
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Size:
- 1 Inch W x 2.06 Inch D x 3.12 Inch H
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Catalog:
- SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
- Current Rating:
- 20/30 A
- Interrupting Rating:
- 10 kA
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Duplex
- Data Sheet:
- SiemensAG_07049_1_DATA.pdf
- Terminal Type:
- Load Lug
- Series:
- QT
- Voltage Rating:
- 120 VAC
- Short Description:
- 120 VAC, 30/20 A, 10 kA, (2) 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QT Frame, Duplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Used On:
- Loadcenter
- Mounting:
- Plug-On
- Number of Poles:
- 1
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $98.00Surplus $17.56 -
Eaton BQ2302120 Miniature Circuit Breakers (MCBs) BQ 2P 20A/30A 120V 50/60Hz 3Ph
MSRP $250.00Surplus $35.68Eaton BQ2302120 Miniature Circuit Breakers (MCBs) BQ 2P 20A/30A 120V 50/60Hz 3Ph​ ARCA SKU: C15-1150 Brand: Eaton MPN: BQ2302120 UPC: 786676371551 Shipping Weight: 0.75 Shipping Height: 3...- SKU:
- C15-1150
- Series:
- BQ
- Type:
- Thermal Magnetic
- Type:
- Independent Trip
- Type:
- Quadplex
- Approval:
- UL 489
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 20/30 A, 10 kA, 1-Pole Outer Left/1-Pole Outer Right/2-Pole Center, Plug-On Mount, BQ Breaker, Independent Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_83_V1T1_87_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Current Rating:
- 20/30 A
- Country of Origin:
- Dominican Republic
MSRP $250.00Surplus $35.68 -
Eaton BD2030 Miniature Circuit Breakers (MCBs) BD 1P 20A/30A 240V 50/60Hz 1Ph EA
MSRP $99.00Surplus $16.15Eaton BD2030 Miniature Circuit Breakers (MCBs) BD 1P 20A/30A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-1123 Brand: Eaton MPN: BD2030 UPC: 786676369305 Shipping Weight: 0.40 lbs. Shipping...- SKU:
- C15-1123
- Series:
- BD
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Volts:
- 120 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Copper/Aluminum)
- Short Description:
- 120 VAC, 20/30 A, 10 kA, 1-Pole, Plug-On Mount, BD Breaker, Duplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_87_CAT.pdf
- Number of Poles:
- 1
- Voltage Rating:
- 120 VAC
- Current Rating:
- 20/30 A
- TS PIK:
- 21493935
- Country of Origin:
- Dominican Republic
MSRP $99.00Surplus $16.15 -
Siemens Q2030 Miniature Circuit Breakers (MCBs) 20/30A 120V
MSRP $98.00Surplus $19.47Siemens Q2030 Miniature Circuit Breakers (MCBs) 20/30A 120V​ ARCA SKU: C15-6188 Brand: Siemens MPN: Q2030 UPC: 78364314827 Shipping Weight: 3.05 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6188
- TS PIK:
- 21366176
- Terminal Type:
- Load Side Lug
- Current Rating:
- 20/30 A
- Type:
- Miniature, Thermal Magnetic, Low Vage, Dual
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120 V
- Number of Poles:
- 2
- Catalog:
- SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Short Description:
- 120 VAC, 20/30 A, 10 kA, (2) 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QT Frame, Duplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Data Sheet:
- SiemensAG_06981_1_DATA.pdf
- Size:
- 2 Inch Width x 3 Inch Depth x 3 Inch Height
- Mounting:
- Plug-On
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA
- Frame Type:
- QT
MSRP $98.00Surplus $19.47 -
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Siemens Q22030CT Miniature Circuit Breakers (MCBs)
MSRP $64.32Surplus $42.77SKU: C15-10541 Brand: Siemens MPN: Q22030CT UPC: 78364319500 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10541
- TS PIK:
- 21367181
- Catalog:
- SiemensAG_23945_7_21_CAT.pdf
- Short Description:
- 120/240 VAC, 20/30 A, 10 kA Interrupt, (2) 1 or 2-Pole, Plug-On Mount, QT-Frame, Triplex, Low Vage, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- (2) Single, (1) Double
- Mounting:
- Plug-On
- Size:
- 2 Inch Width x 3 Inch Depth x 3 Inch Height
- Installation/Operator:
- SiemensAG_00053_INST.pdf
- Interrupting Rating:
- 10 kA
- Country of Origin:
- MEX
- Used On:
- Load Center
- Approval:
- UL 489, CSA
- Data Sheet:
- SiemensAG_00870_1_2_DATA.pdf
- Type:
- Triplex, Low Vage, Common Trip, Thermal Magnetic, Miniature
- Current Rating:
- 20/30 A
MSRP $64.32Surplus $42.77 -
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Square D HOMT3020 Molded Case Breakers (MCCBs)
MSRP $56.88Surplus $31.92SKU: C15-10786 Brand: Square D MPN: HOMT3020 UPC: 78590170636 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10786
- TS PIK:
- 115543081
- Number of Poles:
- 1
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Screw ClA
- Current Rating:
- 20/30 A
- Short Description:
- 120/240 VAC, 20/30 A, 10 kA Interrupt, 1-Pole, 14 to 8 AWG Aluminum/Copper, Plug-On Mount, Box Lug Terminal, Tandem, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Catalog:
- SchneiderElectric_00257_1_20_7_23_CAT.pdf
- Size:
- 1 Inch W x 2.98 Inch D x 3.13 Inch H
- Mounting:
- Plug-On
- Installation/Operator:
- SchneiderElectric-SquareD_00099_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13518_1_2_DATA.pdf
- Approval:
- UL, CSA
- Used On:
- Homeline Loadcenter
- Type:
- Miniature, Thermal Magnetic
- Wire Size:
- 14 to 8 AWG (Aluminum/Copper)
MSRP $56.88Surplus $31.92 -
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Square D QO2030 Molded Case Breakers (MCCBs)
MSRP $119.00Surplus $32.13SKU: C15-17757 Brand: Square D MPN: QO2030 UPC: 78590100101 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17757
- Series:
- QO
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Number of Poles:
- 1
- Approval:
- UL, CSA
- Short Description:
- 120/240 VAC 50/60 Hz, 20/30 A, 10 kA Interrupt, 1-Pole, 14 to 8 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Tandem, Miniature Circuit Breaker
- Current Rating:
- 20/30 A
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SchneiderElectric-SquareD_53466_1_2_DATA.pdf
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Used On:
- QO Load Center
- Terminal Type:
- Box Lug
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Type:
- Tandem, Miniature
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.23 Inch Height
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_4_CAT.pdf
MSRP $119.00Surplus $32.13 -
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Square D QO20303020 Molded Case Breakers (MCCBs)
MSRP $273.00Surplus $73.71SKU: C15-17758 Brand: Square D MPN: QO20303020 UPC: 78590176492 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17758
- Series:
- QO
- Type:
- Quad Tandem, Miniature
- Current Rating:
- 20/30 A
- Terminal Type:
- Box Lug
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Used On:
- QO Load Center
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.23 Inch Height
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_4_CAT.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 20/30 A, 10 kA Interrupt, 2-Pole, 14 to 8 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Quad Tandem, Miniature Circuit Breaker
- Approval:
- UL, CSA
- Data Sheet:
- SchneiderElectric-SquareD_53467_1_2_DATA.pdf
MSRP $273.00Surplus $73.71 -
Square D QO3020 Miniature Circuit Breakers (MCBs)
MSRP $118.00Surplus $500.00SKU: C15-10900 Brand: Square D MPN: QO3020 UPC: 78590111951 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10900
- TS PIK:
- 116558429
- Type:
- Tandem, Miniature
- Short Description:
- 120/240 VAC 50/60 Hz, 20/30 A, 10 kA Interrupt, 1-Pole, 14 to 8 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Tandem, Miniature Circuit Breaker
- Wire Size:
- 14 to 8 AWG (Copper/Aluminum)
- Current Rating:
- 20/30 A
- Interrupting Rating:
- 10 kA
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Number of Poles:
- 1
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_4_CAT.pdf
- Terminal Type:
- Box Lug
- Data Sheet:
- SchneiderElectric-SquareD_53554_1_2_DATA.pdf
- Series:
- QO
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.23 Inch Height
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Mounting:
- Plug-On
- Used On:
- QO Load Center
- Country of Origin:
- United States
MSRP $118.00Surplus $500.00
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