
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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Cutler-Hammer CH145 Miniature Circuit Breakers (MCBs)
MSRP $55.40Surplus $26.52SKU: C15-1389 Brand: Cutler-Hammer MPN: CH145 UPC: 782113510811 Shipping Weight: 0.28 lbs. Shipping Height: 3.30 In. Shipping Length: 3.00 In. Shipping Width: 0.75 In...- SKU:
- C15-1389
- TS PIK:
- 111019363
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 1-Pole, Plug-On Mount, Thermal Magnetic, Circuit Breaker
- Series:
- CH
- Used On:
- CH Series Loadcenter
- Type:
- Thermal Magnetic
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 1
- Approval:
- UL 489, CSA
- Mounting:
- Plug-On
- Current Rating:
- 45 A
- Wire Size:
- 14 to 2 AWG (Aluminum/Copper)
- Catalog:
- Eaton_36620_V1T1_36_V1T1_37_CAT.pdf
- Voltage Rating:
- 120/240 VAC
MSRP $55.40Surplus $26.52 -
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Eaton CHF145 Miniature Circuit Breakers (MCBs)
MSRP $58.54Surplus $15.80SKU: C15-19357 Brand: Eaton MPN: CHF145 UPC: 78668554560 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19357
- Number of Poles:
- 1
- Short Description:
- EATON CH THERMAL MAGNETIC CIRCUIT BREAKER,TYPE CHF PLUG-ON CIRCUIT BREAKER,45 A,10 kAIC,SINGLE-POLE,120/240V,CHF,TRIP FLAG, COMMON BREAKER TRIP,#14-2 AWG CU/AL,CHF,TYPE CH LOADCENTERS
- Current Rating:
- 45 A
- Size:
- 0.75 Inch Width x 3 Inch Depth x 3 Inch Height
- Mounting:
- Plug-On
- Type:
- Thermal Magnetic
- Voltage Rating:
- 120/240 VAC
- Wire Size:
- 14 to 4 AWG Copper/Aluminum
- Interrupting Rating:
- 10 kA
- Approval:
- UL 67/489/E11713/E8741/E3624/E51287, CSA LR87196
- Catalog:
- Eaton-CutlerHammer_00031_V1T1_3-V1T1_43_CAT.pdf
- Used On:
- CH Load Center
MSRP $58.54Surplus $15.80 -
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Siemens Q145 Molded Case Breakers (MCCBs)
MSRP $10.21Surplus $2.75SKU: C15-17522 Brand: Siemens MPN: Q145 UPC: 78364316715 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17522
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Approval:
- UL 489, CSA C22.2
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Country of Origin:
- MEX
- Number of Poles:
- 1
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 1-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Type:
- Thermal and Fixed Magnetic
- Current Rating:
- 45 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Terminal Type:
- Load Lug
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_06976_1_DATA.pdf
- Used On:
- Loadcenter
MSRP $10.21Surplus $2.75 -
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Square D QO145 Molded Case Breakers (MCCBs)
MSRP $32.67Surplus $8.82SKU: C15-17752 Brand: Square D MPN: QO145 UPC: 78590101200 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17752
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 45 A, 5/10 kA Interrupt, 1-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Current Rating:
- 45 A
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Number of Poles:
- 1
- Mounting:
- Plug-On
- Data Sheet:
- SchneiderElectric-SquareD_53430_1_2_DATA.pdf
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Approval:
- UL, CSA
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 5/10 kA
- Type:
- Common Trip, Miniature, Standard
- Installation/Operator:
- SchneiderElectric-SquareD_01259_INST.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
MSRP $32.67Surplus $8.82
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