
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 QBHW2020H Miniature Circuit Breakers (MCBs)
MSRP $727.14Surplus $80.37Eaton QBHW2020H Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-1658 Brand: Eaton MPN: QBHW2020H UPC: 786679152508 Shipping Weight: 0.70 lbs. Shipping Height: 4.80 In. Shipping...- SKU:
- C15-1658
- Series:
- QBHW
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Bolt-On
- Interrupting Rating:
- 22000 A at 240 VAC
- Terminal Type:
- Extended Tang Line Terminal
- Terminal Type:
- Box Lug Load Terminal
- Wire Size:
- 14 to 4 AWG Aluminum/Copper (Load)
- Short Description:
- 240 VAC, 20 A, 22 kA, 2-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_12_CAT.pdf
- Voltage Rating:
- 240 VAC
- Current Rating:
- 20 A
- Number of Poles:
- 2
- TS PIK:
- 21505481
- Country of Origin:
- United States
MSRP $727.14Surplus $80.37 -
Eaton QBHW3020H Molded Case Breakers (MCCBs)
MSRP $938.98Surplus $156.60SKU: C15-1528 Brand: Eaton MPN: QBHW3020H UPC: 78667939320 Shipping Weight: 1.05 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 4.00 In...- SKU:
- C15-1528
- Series:
- QBHW
- Type:
- Molded Case
- Type:
- Thermal Magnetic
- Approval:
- UL
- Approval:
- CSA
- Size:
- 3.8 Inch Length x 3.2 Inch Width x 4.7 Inch Height
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 3
- Mounting:
- Bolt-On
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Extended Tang Line Terminal
- Terminal Type:
- Box Lug Load Terminal
- Wire Size:
- 8 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 240 VAC, 20 A, 22 kA, 3-Pole, Extended Tang Line/Steel Box Lug Load Terminal, Bolt-On Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_12_CAT.pdf
- Data Sheet:
- Eaton_07831_1-3_DATA.pdf
- Installation/Operator:
- Eaton_00091_INST.pdf
- TS PIK:
- 21510605
- Voltage Rating:
- 240 VAC
- Current Rating:
- 20 A
- Number of Poles:
- 3
- Country of Origin:
- Dominican Republic
MSRP $938.98Surplus $156.60 -
Eaton QC2020H Miniature Circuit Breakers (MCBs) QC 2P 20A 240V 50/60Hz 1Ph EA
MSRP $570.38Surplus $147.18Eaton QC2020H Miniature Circuit Breakers (MCBs) QC 2P 20A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-3543 Brand: Eaton MPN: QC2020H UPC: 786679309384 Shipping Weight: 0.70 lbs. Shipping...- SKU:
- C15-3543
- Series:
- QC
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Cable-In
- Mounting:
- Cable Out
- Interrupting Rating:
- 10000 A
- Terminal Type:
- Ring
- Wire Size:
- 14 to 10 AWG Aluminum/Copper (Load)
- Short Description:
- 240 VAC, 20 A, 10 kA, 2-Pole, Steel Ring Line/Load Terminal, Cable-In/Out Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_19_V4T1_20_V4T1_46_CAT.pdf
- TS PIK:
- 21508958
- Current Rating:
- 20 A
- Number of Poles:
- 2
- Voltage Rating:
- 240 VAC
- Country of Origin:
- Dominican Republic
MSRP $570.38Surplus $147.18 -
Eaton QCR3020HT Din Rail Mounted Circuit Breakers
MSRP $1,112.02Surplus $152.90SKU: C15-11123 Brand: Eaton MPN: QCR3020HT UPC: 78211422569 Shipping Weight: 0.75 lbs. Shipping Height: 2.00 In. Shipping Length: 6.00 In. Shipping Width: 4.00 In...- SKU:
- C15-11123
- TS PIK:
- 115463469
- Country of Origin:
- Dominican Republic
- Voltage Rating:
- 240 VAC
- Series:
- QCR
- Short Description:
- is a 3-pole, 20A thermal-magnetic miniature circuit breaker from the Quicklag QCR series, designed for DIN rail mounting in industrial applications.​
- Number of Poles:
- 3
- Current Rating:
- 20 A
- Type:
- Thermal-Magnetic
- Interrupting Rating:
- 10 kA
- Poles:
- 3
MSRP $1,112.02Surplus $152.90 -
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Siemens B320H Miniature Circuit Breakers (MCBs) B 3P 20A 240V 50/60Hz 3Ph
MSRP $358.02Surplus $206.40Siemens B320H Miniature Circuit Breakers (MCBs) B 3P 20A 240V 50/60Hz 3Ph​ ARCA SKU: C15-1455 Brand: Siemens MPN: B320H UPC: 783643263994 Shipping Weight: 1.05 lbs. Shipping...- SKU:
- C15-1455
- Type:
- Molded Case
- Type:
- Thermal and Fixed Magnetic
- Type:
- Branch
- Type:
- Common Trip
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 240 VAC at 50/60 Hertz (UL)
- Amps:
- 32 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Poles:
- 3
- Interrupting Rating:
- 22 kA at 240 VAC (UL)
- Application:
- Lighting
- Application:
- Distribution
- Installation:
- Bolt-On
- Short Description:
- 240 VAC, 20 A, 22 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Branch
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Data Sheet:
- SiemensAG_05240_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- TS PIK:
- 21368420
- Voltage Rating:
- 240 VAC
- Number of Poles:
- 3
- Current Rating:
- 20 A
- Mounting:
- Bolt-On
- Series:
- B
- Country of Origin:
- Mexico
MSRP $358.02Surplus $206.40 -
Siemens HB3B020 Miniature Circuit Breakers (MCBs)
MSRP $1,602.25Surplus $248.26SKU: C15-7446 Brand: Siemens MPN: HB3B020 UPC: 78364311126 Shipping Weight: 1.10 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-7446
- TS PIK:
- 21333605
- Terminal Type:
- Load Lug
- Type:
- Molded Case, Low Vage, Common Trip, Circuit Protector
- Current Rating:
- 20 A
- Voltage Rating:
- 240 VAC
- Size:
- 3 Inch Width x 3 Inch Depth x 4 Inch Height
- Data Sheet:
- SiemensAG_09573_1_2_DATA.pdf
- Catalog:
- SiemensAG_09175_17_8_17_9_CAT.pdf
- Interrupting Rating:
- 65 kA at 240 VAC
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $1,602.25Surplus $248.26 -
Square D FA32020 Molded Case Breakers (MCCBs)
MSRP $964.10Surplus $614.76Square D FA32020 Molded Case Breakers (MCCBs)​ ARCA SKU: E30-10194 Brand: Square D MPN: FA32020 UPC: Shipping Weight: 6.15 lbs. Shipping Height: 6.00 In. Shipping...- SKU:
- E30-10194
- Interrupting Rating:
- 10 kA at 240 VAC, 25 kA at 480 VAC, 25 kA at 600 VAC
- Current Rating:
- 20 A
- Type:
- Molded Case, Thermal Magnetic, Main
- Number of Poles:
- 3
- Data Sheet:
- SchneiderElectric-SquareD_04322_1_2_DATA.pdf
- Voltage Rating:
- 240 VAC
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Series:
- 650, FA
- Short Description:
- 240 VAC, 250 VDC, 20 A, 5/10 kA, 3-Pole, F-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Application:
- Construction, Commercial Building, Control Equipment Panel, Industrial Building, OEM Commercial
- Used On:
- I-Line Panelboard and Switchboard
- Approval:
- UL 489, CSA, IEC, Federal Specification W-C-375B/GEN
- Installation:
- Plug-On
- Trip Setting:
- 275 A Hold, 600 A Trip
MSRP $964.10Surplus $614.76 -
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Square D FAL32020 Molded Case Breakers (MCCBs) EA
MSRP $1,334.07Surplus $187.64Square D FAL32020 Molded Case Breakers (MCCBs) EA​ ARCA SKU: U00-3255 Brand: Square D MPN: FAL32020 UPC: Shipping Weight: 4.35 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- U00-3255
- Installation/Operator:
- SchneiderElectric-SquareD_00076_INST.pdf
- Interrupting Rating:
- 10 kA at 240 VAC, 25 kA at 480 VAC, 25 kA at 600 VAC
- Type:
- Thermal Magnetic
- Data Sheet:
- SchneiderElectric-SquareD_04436_1_2_DATA.pdf
- Size:
- 4.5 Inch Width x 4.13 Inch Depth x 6 Inch Height
- Number of Poles:
- 3
- Terminal Type:
- Lug
- Series:
- FA
- Current Rating:
- 20 A
- Short Description:
- 240 VAC, 250 VDC, 20 A, 10/5 kA, 3-Pole, F-Frame, Unit Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Frame Type:
- F
- Voltage Rating:
- 240 VAC
- Prop 65 Warning:
- Yes
MSRP $1,334.07Surplus $187.64
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