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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- Qty in Cart
- Price
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Square D MGA36500 Molded Case Breakers (MCCBs)
MSRP $8,168.00Surplus $5,921.16SKU: C15-7748 Brand: Square D MPN: MGA36500 UPC: 78590146790 Shipping Weight: 28.95 lbs. Shipping Height: 11.00 In. Shipping Length: 18.00 In. Shipping Width: 12.00...- SKU:
- C15-7748
- TS PIK:
- 108425140
- Data Sheet:
- SchneiderElectric-SquareD_70426_1_2_DATA.pdf
- Voltage Rating:
- 600 VAC 50/60 Hertz
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 18 kA at 600 VAC
- Catalog:
- SchneiderElectric-SquareD_32357_7_31_CAT.pdf
- Short Description:
- 600 VAC 50/60 Hz, 500 A, 65 kA, 3-Pole, M-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Basic Electronic, ET 1.0, Panelboard Molded Case Circuit Breaker
- Number of Poles:
- 3
- Series:
- MG
- Current Rating:
- 500 A
- Type:
- Thermal Magnetic, Basic Electronic ET 1.0
- CAD Drawings:
- SchneiderElectric_30061_1_CAD.pdf
- Prop 65 Warning:
- Yes
- Country of Origin:
- United States
MSRP $8,168.00Surplus $5,921.16 -
Square D MGA36600 Molded Case Breakers (MCCBs)
MSRP $8,168.00Surplus $5,921.16SKU: C15-7793 Brand: Square D MPN: MGA36600 UPC: 78590142874 Shipping Weight: 26.75 lbs. Shipping Height: 11.00 In. Shipping Length: 18.00 In. Shipping Width: 14.00...- SKU:
- C15-7793
- TS PIK:
- 21333972
- Current Rating:
- 600 A
- Interrupting Rating:
- 18 kA at 600 VAC
- CAD Drawings:
- SchneiderElectric_30063_1_CAD.pdf
- Short Description:
- 600 VAC 50/60 Hz, 600 A, 18 kA, 3-Pole, M-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Basic Electronic, ET 1.0, Panelboard Molded Case Circuit Breaker
- Prop 65 Warning:
- Yes
- Number of Poles:
- 3
- Catalog:
- SchneiderElectric-SquareD_32357_9_62_CAT.pdf
- Series:
- MG
- Voltage Rating:
- 600 VAC 50/60 Hertz
- Type:
- Thermal Magnetic, Basic Electronic ET 1.0
- Data Sheet:
- SchneiderElectric-SquareD_70427_1-3_DATA.pdf
- Country of Origin:
- Mexico
MSRP $8,168.00Surplus $5,921.16 -
Square D MJA36300 Molded Case Breakers (MCCBs)
MSRP $9,929.00Surplus $6,418.31SKU: C15-7229 Brand: Square D MPN: MJA36300 UPC: 78590168956 Shipping Weight: 28.95 lbs. Shipping Height: 11.00 In. Shipping Length: 18.00 In. Shipping Width: 12.00...- SKU:
- C15-7229
- TS PIK:
- 122847026
- Current Rating:
- 300 A
- Short Description:
- 600 VAC 50/60 Hz, 300 A, 100 kA, 3-Pole, M-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Basic Electronic, ET 1.0, Panelboard Molded Case Circuit Breaker
- Voltage Rating:
- 600 VAC 50/60 Hertz
- Type:
- Thermal Magnetic, Basic Electronic ET 1.0
- Series:
- MJ
- Number of Poles:
- 3
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 VAC, 25 kA at 600 VAC
- Catalog:
- SchneiderElectric-SquareD_32357_7_31_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_70439_1-3_DATA.pdf
- CAD Drawings:
- SchneiderElectric_30153_1_CAD.pdf
- Approval:
- UL, CSA
- Prop 65 Warning:
- Yes
- Trip Setting:
- 600 to 3000 A
- Used On:
- I-Line Panelboard And Switchboard
- Application:
- Power Distribution
- Country of Origin:
- United States
MSRP $9,929.00Surplus $6,418.31 -
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Square D NA11021 Miniature Circuit Breakers (MCBs)
MSRP $1,254.00Surplus $471.03Square D NA11021 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-7231 Brand: Square D MPN: NA11021 UPC: Shipping Weight: 0.60 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-7231
MSRP $1,254.00Surplus $471.03 -
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Square D NNB FA34020 Molded Case Breakers (MCCBs) EA
MSRP $927.43Surplus $149.10SKU: E30-10196 Brand: Square D MPN: FA34020 UPC: Shipping Weight: 5.25 lbs. Shipping Height: 5.00 In. Shipping Length: 9.00 In. Shipping Width: 5.00 In. Product...- SKU:
- E30-10196
- Data Sheet:
- SchneiderElectric-SquareD_04337_1_2_DATA.pdf
- Interrupting Rating:
- 18 kA
- Short Description:
- 480 VAC, 250 VDC, 20 A, 10/18/25 kA, 3-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Type:
- Molded Case, Thermal Magnetic
- Catalog:
- SchneiderElectric-SquareD_00096_25_28_CAT.pdf
- Voltage Rating:
- 480 VAC, 250 VDC
- Series:
- FA
- Current Rating:
- 20 A
- Number of Poles:
- 3
MSRP $927.43Surplus $149.10 -
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Square D NQMB2Q Circuit Breaker Accessories EA
MSRP $780.00Surplus $282.76SKU: C15-9373 Brand: Square D MPN: NQMB2Q UPC: 78590166610 Shipping Weight: 9.40 lbs. Shipping Height: 2.00 In. Shipping Length: 21.00 In. Shipping Width: 15.00 In...- SKU:
- C15-9373
- TS PIK:
- 122684021
MSRP $780.00Surplus $282.76 -
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Square D Q2L3200 Molded Case Breakers (MCCBs)
MSRP $857.00Surplus $319.52Square D Q2L3200 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-2168 Brand: Square D MPN: Q2L3200 UPC: Shipping Weight: 4.10 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-2168
MSRP $857.00Surplus $319.52 -
Square D QBL22100 Molded Case Breakers (MCCBs) QBL 2P 100A 240V 50/60Hz 2Ph Q Frame EA
MSRP $474.00Surplus $465.50Square D QBL22100 Molded Case Breakers (MCCBs) QBL 2P 100A 240V 50/60Hz 2Ph Q Frame EA​ ARCA SKU: C15-2209 Brand: Square D MPN: QBL22100 UPC: 785901702931 Shipping Weight: 3.30 lbs. Shipping...- SKU:
- C15-2209
- Series:
- QBL
- Type:
- Thermal Magnetic
- Type:
- Twin
- Type:
- Switch Duty
- Approval:
- UL
- Approval:
- CSA
- Approval:
- IEC
- Size:
- 3 Inch Width x 3.93 Inch Depth x 6.47 Inch Height
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Interrupting Rating:
- 10 kA at 240 VAC
- Terminal Type:
- Line and Load Lug
- Frame Type:
- Q
- Maximum AC Voltage Rating (V):
- 240
- Short Description:
- 240 VAC, 100 A, 10 kA Interrupt, 2-Pole, Q-Frame, Line/Load Lug Terminal, Thermal Magnetic
- Catalog:
- SchneiderElectric_00260_1_44_CAT.pdf
- Data Sheet:
- Eaton_36590_1_2_DATA.pdf
- Installation/Operator:
- Eaton_00008_INST.pdf
- Manufacturer Warranty:
- Eaton_00009_WARR.pdf
- TS PIK:
- 119493717
- Current Rating:
- 100 A
- Voltage Rating:
- 240 VAC
- Number of Poles:
- 2
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
MSRP $474.00Surplus $465.50 -
Square D QBL32080 Molded Case Breakers (MCCBs) EA
MSRP $1,248.00Surplus $688.94SKU: C15-10962 Brand: Square D MPN: QBL32080 UPC: 78590145854 Shipping Weight: 4.80 lbs. Shipping Height: 6.00 In. Shipping Length: 10.00 In. Shipping Width: 6.00 In...- SKU:
- C15-10962
- Current Rating:
- 80 A
- Voltage Rating:
- 240 VAC
- Interrupting Rating:
- 10 kA at 240 VAC (UL/CSA/NOM), 10/5 kA at 240 VAC (IEC)
- Number of Poles:
- 3
- Frame Type:
- Q
- Series:
- QB
- Short Description:
- 240 VAC, 80 A, 10 kA Interrupt, 3-Pole, Q-Frame, Line/Load Lug Terminal, Thermal Magnetic, Molded Case Circuit Breaker
- Catalog:
- SchneiderElectric_00260_1_45_CAT.pdf
- Type:
- Molded Case, Thermal Magnetic
- Size:
- 4.5 Inch W x 3.93 Inch D x 6.47 Inch H
- Terminal Type:
- Line Lug, Load Lug
- Data Sheet:
- SchneiderElectric-SquareD_14657_1_2_DATA.pdf
- Maximum AC Voltage Rating:
- 240 V
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
MSRP $1,248.00Surplus $688.94 -
Square D QBL32150 Molded Case Breakers (MCCBs)
MSRP $1,248.00Surplus $688.94Square D QBL32150 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-2155 Brand: Square D MPN: QBL32150 UPC: 78590141783 Shipping Weight: 4.73 lbs. Shipping Height: 6.00 In. Shipping...- SKU:
- C15-2155
- Series:
- QBL
- Type:
- Thermal Magnetic
- Type:
- Molded Case
- Approval:
- UL
- Approval:
- CSA
- Approval:
- IEC
- Size:
- 4.5 Inch Width x 3.93 Inch Depth x 6.47 Inch Height
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 3
- Interrupting Rating:
- 10 kA at 240 VAC
- Terminal Type:
- Line and Load Lug
- Frame Type:
- Q
- Maximum AC Voltage Rating (V):
- 240
- Short Description:
- 240 VAC, 150 A, 10 kA Interrupt, 3-Pole, Q-Frame, Line/Load Lug Terminal, Thermal Magnetic
- Catalog:
- SchneiderElectric_00260_1_45_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_14662_1_2_DATA.pdf
- TS PIK:
- 119493649
- Voltage Rating:
- 240 VAC
- Current Rating:
- 150 A
- Number of Poles:
- 3
- Prop 65 Warning:
- Yes
- Country of Origin:
- Mexico
MSRP $1,248.00Surplus $688.94 -
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Square D QDP22150TM Miniature Circuit Breakers (MCBs)
MSRP $1,143.00Surplus $599.83Square D QDP22150TM Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-2216 Brand: Square D MPN: QDP22150TM UPC: 78590166239 Shipping Weight: 3.26 lbs. Shipping Height: 5.00 In...- SKU:
- C15-2216
- Frame Type:
- Q
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 32 A
- Number of Poles:
- 2
- Interrupting Rating:
- 25 kA at 240 VAC
- Type:
- Main
- Terminal Type:
- Lug (On End)
- Size:
- 3 Inch W x 3.93 Inch D x 6.47 Inch H
- Short Description:
- 240 VAC, 150 A, 25 kA Interrupt, 2-Pole, Unit Mount, Lug to Off End/Stud with Nut/Washer to On End Terminal, Q-Frame, Thermal Magnetic
- Catalog:
- SchneiderElectric-SquareD_03391_2_7_2_21_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_14722_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00130_INST.pdf
- TS PIK:
- 119493693
- Wire Size:
- 4 AWG to 300 KCMIL (Aluminum/Copper)
- Mounting:
- Bolt-On
- Series:
- QB
- CAD Drawings:
- SchneiderElectric-SquareD_17838_1_CAD.pdf
- Used On:
- EZ METER-PAK Meter Center
- Approval:
- UL, CSA, ANCE, IEC
MSRP $1,143.00Surplus $599.83 -
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Square D QE3200VH Molded Case Breakers (MCCBs)
MSRP $8,900.00Surplus $2,690.77SKU: C15-7201 Brand: Square D MPN: QE3200VH UPC: Shipping Weight: 3.10 lbs. Shipping Height: 4.00 In. Shipping Length: 9.00 In. Shipping Width: 4.00 In. Product...- SKU:
- C15-7201
MSRP $8,900.00Surplus $2,690.77 -
Square D QO2501021 Miniature Circuit Breakers (MCBs) EA
MSRP $256.00Surplus $296.59Square D QO2501021 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9350 Brand: Square D MPN: QO2501021 UPC: 78590149401 Shipping Weight: 0.95 lbs. Shipping Height: 3.00 In...- SKU:
- C15-9350
- TS PIK:
- 111089497
- CAD Drawings:
- SchneiderElectric-SquareD_03059_1_CAD.pdf
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Number of Poles:
- 2
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Catalog:
- SchneiderElectric-SquareD_03264_1_3_1_9_1_39_CAT.pdf
- Current Rating:
- 50 A
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Type:
- Common Trip, Thermal Magnetic
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Data Sheet:
- SchneiderElectric-SquareD_14982_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 3-Panel Space, Box Lug Terminal, AC Shunt Trip, Standard, Miniature Circuit Breaker
- Country of Origin:
- Mexico
MSRP $256.00Surplus $296.59 -
Square D QO3100 Miniature Circuit Breakers (MCBs) 3P 100A 240V
MSRP $395.28Surplus $75.97Square D QO3100 Miniature Circuit Breakers (MCBs) 3P 100A 240V​ ARCA SKU: C15-6378 Brand: Square D MPN: QO3100 UPC: 78590100441 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6378
- TS PIK:
- 124024933
- Series:
- QO
- Terminal Type:
- Box Lug
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Type:
- Common Trip, Miniature, Standard
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53556_1_2_DATA.pdf
- Current Rating:
- 100 A
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Country of Origin:
- Mexico
MSRP $395.28Surplus $75.97 -
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Square D QO320SWN Miniature Circuit Breakers (MCBs)
MSRP $170.00Surplus $57.12Square D QO320SWN Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8586 Brand: Square D MPN: QO320SWN UPC: Shipping Weight: 0.85 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8586
MSRP $170.00Surplus $57.12 -
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Square D QO330PL Miniature Circuit Breakers (MCBs)
MSRP $1,080.00Surplus $503.50Square D QO330PL Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8744 Brand: Square D MPN: QO330PL UPC: Shipping Weight: 1.15 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8744
- Number of Poles:
- 3
MSRP $1,080.00Surplus $503.50 -
Square D QOB1201021 Miniature Circuit Breakers (MCBs)
MSRP $229.00Surplus $219.45Square D QOB1201021 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6592 Brand: Square D MPN: QOB1201021 UPC: 78590149419 Shipping Weight: 0.65 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6592
- TS PIK:
- 109595136
MSRP $229.00Surplus $219.45 -
Square D QOB2125VH Miniature Circuit Breakers (MCBs)
MSRP $1,198.80Surplus $414.96Square D QOB2125VH Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6466 Brand: Square D MPN: QOB2125VH UPC: 78590112065 Shipping Weight: 0.75 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6466
- TS PIK:
- 21032611
- Short Description:
- 240 VAC 50/60 Hz, 125 A, 22 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_02167_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Interrupting Rating:
- 22 kA at 240 VAC
- Used On:
- NQ Panelboard
- Data Sheet:
- SchneiderElectric_21294_1_2_DATA.pdf
- Current Rating:
- 125 A
- Voltage Rating:
- 240 VAC 50/60 Hertz
- Number of Poles:
- 2
- Type:
- Miniature, Standard
- Series:
- QOB-VH
- Country of Origin:
- Mexico
MSRP $1,198.80Surplus $414.96 -
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Square D QOB260VH1021 Miniature Circuit Breakers (MCBs)
MSRP $360.00Surplus $221.69Square D QOB260VH1021 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6555 Brand: Square D MPN: QOB260VH1021 UPC: 78590127217 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6555
- TS PIK:
- 109594868
MSRP $360.00Surplus $221.69 -
Square D QOB280 Miniature Circuit Breakers (MCBs)
MSRP $256.31Surplus $70.84Square D QOB280 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6599 Brand: Square D MPN: QOB280 UPC: 78590101970 Shipping Weight: 0.75 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-6599
- TS PIK:
- 115138208
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Series:
- QOB
- Current Rating:
- 80 A
- Type:
- Miniature, Standard
- Interrupting Rating:
- 10 kA at 120/240 VAC, 5 kA at 48 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_9_16_CAT.pdf
- Number of Poles:
- 2
- Used On:
- NQ Panelboard
- Installation/Operator:
- SchneiderElectric-SquareD_02166_INST.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 80 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker
- Data Sheet:
- SchneiderElectric_21351_1_2_DATA.pdf
- Country of Origin:
- Mexico
MSRP $256.31Surplus $70.84
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