
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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Square D HOM245 Miniature Circuit Breakers (MCBs) 2P 45A 120V
MSRP $60.00Surplus $20.20Square D HOM245 Miniature Circuit Breakers (MCBs) 2P 45A 120V​ ARCA SKU: C15-6373 Brand: Square D MPN: HOM245 UPC: 78590106550 Shipping Weight: 0.70 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6373
- TS PIK:
- 111860172
- Data Sheet:
- SchneiderElectric-SquareD_13455_1_2_DATA.pdf
- Used On:
- Homeline Load Center
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Installation/Operator:
- SchneiderElectric-SquareD_00099_INST.pdf
- Voltage Rating:
- 120/240 VAC
- Catalog:
- SchneiderElectric_00257_1_19_1_39_7_22_7_23_CAT.pdf
- Interrupting Rating:
- 10 kA
- Current Rating:
- 45 A
- Number of Poles:
- 2
- Type:
- Common Trip, Main
- Mounting:
- Plug-On
- Short Description:
- 120/240 VAC, 45 A, 10 kA Interrupt, 2-Pole, 8 to 2 AWG Aluminum/Copper, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- HOM
- Terminal Type:
- Box Lug
- Country of Origin:
- United States
- Approval:
- UL
MSRP $60.00Surplus $20.20 -
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Eaton CH245 Main Breakers EA
MSRP $57.00Surplus $69.16Eaton CH245 Main Breakers EA​ ARCA SKU: C15-9245 Brand: Eaton MPN: CH245 UPC: 30782113317015 Shipping Weight: 0.55 lbs. Shipping Height: 4.00 In. Shipping Length: 2.00 In...- SKU:
- C15-9245
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Circuit Breaker
- Interrupting Rating:
- 10 kA
- Series:
- CH
- Current Rating:
- 45 A
- Catalog:
- Eaton_36620_V1T1_36_V1T1_37_CAT.pdf
- Terminal Type:
- Box Lug, Solid/Stranded
- Type:
- Branch, Thermal Magnetic, Common Trip
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Used On:
- Type CH Load Center
- Approval:
- UL 486B
MSRP $57.00Surplus $69.16 -
Eaton CHF245 Miniature Circuit Breakers (MCBs) 2P 45A 240V EA
MSRP $104.45Surplus $17.22Eaton CHF245 Miniature Circuit Breakers (MCBs) 2P 45A 240V EA​ ARCA SKU: C15-1549 Brand: Eaton MPN: CHF245 UPC: 78668554561 Shipping Weight: 0.55 lbs. Shipping Height: 2.00 In...- SKU:
- C15-1549
- Series:
- CH
- Type:
- Common Trip
- Type:
- Renewal
- Size:
- 3.2 Inch Width x 1.5 Inch Depth x 2.6 Inch Height
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- CH Series Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Terminal Type:
- Load
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Mechanical Trip Flag
- Catalog:
- Eaton_36601_V1T1_35_V1T1_36_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 45 A
- Installation/Operator:
- Eaton_00008_INST.pdf
- Number of Poles:
- 2
- TS PIK:
- 125153617
- Country of Origin:
- Dominican Republic
MSRP $104.45Surplus $17.22 -
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Crouse-Hinds CHF245 Miniature Circuit Breakers (MCBs)
MSRP $104.45Surplus $37.83SKU: L19-3998 Brand: Crouse-Hinds MPN: CHF245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- L19-3998
- TS PIK:
- 125153617
- Catalog:
- Eaton_36601_V1T1_35_V1T1_36_CAT.pdf
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Mechanical Trip Flag, Circuit Breaker
- Type:
- Common Trip
- Number of Poles:
- 2
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Terminal Type:
- Load
- Size:
- 3.2 Inch Width x 1.5 Inch Depth x 2.6 Inch Height
- Mounting:
- Plug-On
- Series:
- CH
- Voltage Rating:
- 120/240 VAC
- Used On:
- CH Series Load Center
- Installation/Operator:
- Eaton_00008_INST.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Current Rating:
- 45 A
MSRP $104.45Surplus $37.83 -
Eaton BR245 Miniature Circuit Breakers (MCBs) 1P 20A 240V EA
MSRP $142.47Surplus $14.21Eaton BR245 Miniature Circuit Breakers (MCBs) 1P 20A 240V EA​ ARCA SKU: C15-1233 Brand: Eaton MPN: BR245 UPC: 786676374453 Shipping Weight: 0.55 lbs. Shipping Height: 3.00 In...- SKU:
- C15-1233
- Series:
- BR
- Approval:
- UL 489
- Size:
- 1.9 Inch Length x 2.9 Inch Width x 2.5 Inch Height
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_84_CAT.pdf
- Installation/Operator:
- Eaton_00008_INST.pdf
- Manufacturer Warranty:
- Eaton_00009_WARR.pdf
- TS PIK:
- 21494044
- Type:
- Thermal Magnetic, Common Trip
- Current Rating:
- 45 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- United States
MSRP $142.47Surplus $14.21 -
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Murray MP245 Miniature Circuit Breakers (MCBs)
MSRP $144.90Surplus $52.16Murray MP245 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6329 Brand: Murray MPN: MP245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0...- SKU:
- C15-6329
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Current Rating:
- 45 A
- Type:
- Common Trip
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Plug-On Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Series:
- MP-T
- Terminal Type:
- Load Lug
- Used On:
- Loadcenter
- Data Sheet:
- SiemensAG_06627_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Voltage Rating:
- 120/240 VAC
MSRP $144.90Surplus $52.16 -
Siemens Q245 Miniature Circuit Breakers (MCBs)
MSRP $91.50Surplus $26.66SKU: C15-6274 Brand: Siemens MPN: Q245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6274
- TS PIK:
- 121449811
- Number of Poles:
- 2
- Current Rating:
- 45 A
- Used On:
- Load Center
- Mounting:
- Plug-On
- Series:
- Q
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Short Description:
- 120/240 VAC, 45 A, 10 kA Interrupt Rating, 2-Pole, Plug-On, Type QP, Circuit Breaker
- Data Sheet:
- Siemens_02206_1_DATA.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $91.50Surplus $26.66 -
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Square D QO245 Everything Else
MSRP $57.08Surplus $37.24Square D QO245 Everything Else​ ARCA SKU: C15-6455 Brand: Square D MPN: QO245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In...- SKU:
- C15-6455
- TS PIK:
- 21032365
- Type:
- Common Trip, Miniature, Standard
- Series:
- QO
- Number of Poles:
- 2
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Interrupting Rating:
- 5/10 kA
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 45 A, 5/10 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_53523_1_2_DATA.pdf
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Current Rating:
- 45 A
- Terminal Type:
- Box Lug
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $57.08Surplus $37.24 -
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Square D QO245GFI Molded Case Breakers (MCCBs)
MSRP $167.20Surplus $45.14SKU: C15-17782 Brand: Square D MPN: QO245GFI UPC: 78590150906 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17782
- Used On:
- Load Center
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 4.13 Inch Height
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Current Rating:
- 45 A
- Series:
- QO
- CAD Drawings:
- SchneiderElectric_30262_1_CAD.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_5_CAT.pdf
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Data Sheet:
- SchneiderElectric-SquareD_53524_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 45 A, 10 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Pigtail, Miniature Circuit Breaker
- Approval:
- UL, CSA
- Type:
- Miniature, Pigtail, Ground Fault Protecting
- Mounting:
- Plug-On
MSRP $167.20Surplus $45.14
Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.