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.
-
Din Rail Mounted Circuit Breakers
-
Main Breakers
-
Miniature Circuit Breakers (MCBs)
-
Molded Case Breakers (MCCBs)
-
Motor Circuit Protector (MCPs)
-
Lug Terminal Kits
-
Auxiliary, Shunt, Trip Units and UVRs
-
Circuit Breaker Accessories
- Product
- Qty in Cart
- Price
-
Square D QO250 Miniature Circuit Breakers (MCBs) 2P 50A 120V
MSRP $70.00Surplus $34.05Square D QO250 Miniature Circuit Breakers (MCBs) 2P 50A 120V​ ARCA SKU: C15-4183 Brand: Square D MPN: QO250 UPC: 78590140052 Shipping Weight: 0.60 lbs. Shipping Height: 2.00 In...- SKU:
- C15-4183
- Series:
- QO
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 5/10 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 5/10 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53530_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 110616090
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Country of Origin:
- Ireland
MSRP $70.00Surplus $34.05 -
Square D QO350 Miniature Circuit Breakers (MCBs) 3P 50A 240V
MSRP $248.00Surplus $102.41Square D QO350 Miniature Circuit Breakers (MCBs) 3P 50A 240V​ ARCA SKU: C15-6381 Brand: Square D MPN: QO350 UPC: 78590140080 Shipping Weight: 2.65 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6381
- TS PIK:
- 124024945
- Interrupting Rating:
- 5/10 kA
- Current Rating:
- 50 A
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53603_1_2_DATA.pdf
- Terminal Type:
- Box Lug
- Number of Poles:
- 3
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Voltage Rating:
- 120/240 VAC
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Mounting:
- Plug-On
- Series:
- QO
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 5/10 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Type:
- Common Trip, Miniature, Standard
- Country of Origin:
- Mexico
MSRP $248.00Surplus $102.41 -
Square D QO2501021 Miniature Circuit Breakers (MCBs) EA
MSRP $256.00Surplus $385.70Square 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 $385.70 -
Contact Us For Quote
Square D HOM150 Miniature Circuit Breakers (MCBs) HOM 1P 50A 120V 50/60Hz 1Ph EA
MSRP $22.41Surplus $11.44Square D HOM150 Miniature Circuit Breakers (MCBs) HOM 1P 50A 120V 50/60Hz 1Ph EA​ ARCA SKU: C15-4918 Brand: Square D MPN: HOM150 UPC: 785901065258 Shipping Weight: 0.35 lbs. Shipping...- SKU:
- C15-4918
- Type:
- Miniature
- Type:
- Thermal Magnetic
- Type:
- Branch
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1 Inch W x 2.98 Inch D x 3.13 Inch H
- Volts:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Amps:
- 32 A
- Used On:
- Homeline Loadcenter
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Screw ClA
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 1-Pole, 8 to 2 AWG Aluminum/Copper, Plug-In Mount, Box Lug Terminal
- Catalog:
- SchneiderElectric_00257_1_19_1_39_7_22_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13428_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Current Rating:
- 50 A
- Number of Poles:
- 1
MSRP $22.41Surplus $11.44 -
Square D HOM250GFI Miniature Circuit Breakers (MCBs)
MSRP $413.00Surplus $173.98SKU: C15-10773 Brand: Square D MPN: HOM250GFI UPC: 78590178357 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10773
- TS PIK:
- 113875669
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 2-Pole, 12 to 4 AWG Aluminum, 14 to 6 AWG Copper, Plug-On Mount, Screw ClA Terminal, Miniature Circuit Breaker
- Current Rating:
- 50 A
- Terminal Type:
- Screw ClA
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Installation/Operator:
- SchneiderElectric-SquareD_00207_INST.pdf
- Used On:
- Load Center
- Type:
- Common Trip
- Data Sheet:
- SchneiderElectric-SquareD_13459_1_2_DATA.pdf
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Catalog:
- SchneiderElectric_00257_1_19_1_45_7_23_CAT.pdf
- Mounting:
- Plug-On
- Size:
- 2 Inch Width x 2.98 Inch Depth x 3.13 Inch Height
MSRP $413.00Surplus $173.98 -
Square D QO150 Miniature Circuit Breakers (MCBs) 50A 120V
MSRP $29.10Surplus $11.77Square D QO150 Miniature Circuit Breakers (MCBs) 50A 120V​ ARCA SKU: C15-4923 Brand: Square D MPN: QO150 UPC: 78590140022 Shipping Weight: 0.30 lbs. Shipping Height: 3.00 In...- SKU:
- C15-4923
- TS PIK:
- 21371522
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Number of Poles:
- 1
- Mounting:
- Plug-On
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 5/10 kA
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01259_INST.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Type:
- Common Trip, Miniature, Standard
- Data Sheet:
- SchneiderElectric-SquareD_53432_1_2_DATA.pdf
- Terminal Type:
- Box Lug
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 5/10 kA Interrupt, 1-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Country of Origin:
- Ireland
MSRP $29.10Surplus $11.77 -
Square D QO250EPD Miniature Circuit Breakers (MCBs)
MSRP $713.00Surplus $369.90SKU: C15-10895 Brand: Square D MPN: QO250EPD UPC: 78590118833 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10895
- TS PIK:
- 116965844
- Catalog:
- SchneiderElectric-SquareD_03264_1_6_CAT.pdf
- Used On:
- QO Loadcenter, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Prop 65 Warning:
- Yes
- Terminal Type:
- Box Lug
- Series:
- QO-EPD
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 2-Panel Space, Box Lug Terminal, 30 mA Class B Ground Fault, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SchneiderElectric-SquareD_14984_1_2_DATA.pdf
- Mounting:
- Plug-On
- Installation/Operator:
- SchneiderElectric-SquareD_00133_INST.pdf
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Size:
- 1.5 Inch W x 2.91 Inch D x 4.12 Inch H
- Type:
- Thermal Magnetic, Common Trip, Equipment Protector
MSRP $713.00Surplus $369.90 -
Square D QO250GFI Miniature Circuit Breakers (MCBs)
MSRP $413.00Surplus $167.47SKU: C15-6644 Brand: Square D MPN: QO250GFI UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6644
- TS PIK:
- 42800411
- Current Rating:
- 50 A
- Prop 65 Warning:
- Yes
- Number of Poles:
- 2
- Mounting:
- Plug-On
- Series:
- QO-GFI
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 2-Panel Space, Box Lug Terminal, 6 mA Class A Ground Fault, Pigtail, Miniature Circuit Breaker
- Type:
- Miniature, Thermal Magnetic, Common Trip
- Installation/Operator:
- SchneiderElectric-SquareD_00198_INST.pdf
- Used On:
- QO Loadcenter, NQ Panelboard, NQ OEM Interior/Speed-D Switchboard Distribution Panel
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 4.12 Inch Height
- Data Sheet:
- SchneiderElectric-SquareD_14985_1_2_DATA.pdf
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Catalog:
- SchneiderElectric-SquareD_03264_1_5_1_45_1_47_CAT.pdf
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Box Lug
- Voltage Rating:
- 120/240 VAC
MSRP $413.00Surplus $167.47 -
Square D QO250VH Miniature Circuit Breakers (MCBs) QO 2P 50A 120V 50/60Hz 1Ph 1 Phase
MSRP $146.00Surplus $114.38Square D QO250VH Miniature Circuit Breakers (MCBs) QO 2P 50A 120V 50/60Hz 1Ph 1 Phase​ ARCA SKU: C15-2171 Brand: Square D MPN: QO250VH UPC: 785901054962 Shipping Weight: 0.70 Shipping...- SKU:
- C15-2171
- Series:
- QO
- Type:
- Common Trip
- Type:
- Thermal Magnetic
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 22 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_14970_1_2_DATA.pdf
- CAD Drawing:
- SchneiderElectric-SquareD_03068_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Number of Poles:
- 2
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Current Rating:
- 50 A
- Country of Origin:
- Mexico
MSRP $146.00Surplus $114.38 -
Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph
MSRP $371.00Surplus $236.74Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph​ ARCA SKU: C15-2190 Brand: Square D MPN: QO350VH UPC: 785901060215 Shipping Weight: 1.03 Shipping Height: 2.30...- SKU:
- C15-2190
- Series:
- QO
- Type:
- Bi-Metallic
- Type:
- Thermal
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Enclosure:
- IP20
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 22 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- Eaton_41012_1-6_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Current Rating:
- 50 A
- Country of Origin:
- Ireland
MSRP $371.00Surplus $236.74
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.
