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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Murray MP150 Miniature Circuit Breakers (MCBs)
MSRP $39.00Surplus $7.43Murray MP150 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8240 Brand: Murray MPN: MP150 UPC: 04089251900 Shipping Weight: 3.20 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8240
- TS PIK:
- 21261830
- Voltage Rating:
- 120 VAC
- Series:
- MP-T
- Size:
- 1 Inch W x 3 Inch D x 3 1/8 Inch H
- Short Description:
- 120 VAC, 50 A, 10 kA, 1-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Terminal Type:
- Load Lug
- Number of Poles:
- 1
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Current Rating:
- 50 A
- Used On:
- Loadcenter
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Data Sheet:
- SiemensAG_06584_1_DATA.pdf
- Country of Origin:
- Mexico
MSRP $39.00Surplus $7.43 -
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GE THQL1150 Miniature Circuit Breakers (MCBs) THQL 1P 50A 50/60Hz 1Ph EA
MSRP $53.82Surplus $10.91GE THQL1150 Miniature Circuit Breakers (MCBs) THQL 1P 50A 50/60Hz 1Ph EA​ ARCA SKU: C15-7011 Brand: GE MPN: THQL1150 UPC: 78316401289 Shipping Weight: 1.50 lbs. Shipping Height: 1.00...- SKU:
- C15-7011
- TS PIK:
- 555077
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- Voltage Rating:
- 120/240 VAC
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00499_1_CAD.pdf
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_30_CAT.pdf
- Terminal Type:
- Plug-On
- Current Rating:
- 50 A
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 1-Pole, 8 to 3 AWG Copper/Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Compact, Fixed Thermal Magnetic, Circuit Breaker
- Number of Poles:
- 1
- Type:
- Thermal Magnetic, Compact
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Mounting:
- Plug-On
MSRP $53.82Surplus $10.91 -
Eaton CHF150 Miniature Circuit Breakers (MCBs) CHF 1P 50A 240V 50/60Hz 1Ph EA
MSRP $53.00Surplus $13.10Eaton CHF150 Miniature Circuit Breakers (MCBs) CHF 1P 50A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-3912 Brand: Eaton MPN: CHF150 UPC: 786685532141 Shipping Weight: 0.30 Shipping Height: 1.00 In...- SKU:
- C15-3912
- Type:
- Thermal Magnetic
- Type:
- Standard
- Approval:
- UL
- Size:
- 3 Inch Length x 0.75 Inch Width x 3 Inch Height
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- CH Load Center
- Poles:
- 1
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 2 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 50 A, 1-Pole, 10 kA, Plug-On Mount, Thermal Magnetic
- Catalog:
- Eaton_00001_V1T1_37_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Current Rating:
- 50 A
- Mounting:
- Plug-On
- Series:
- CH
- Country of Origin:
- Dominican Republic
MSRP $53.00Surplus $13.10 -
Eaton CH150 Miniature Circuit Breakers (MCBs) 50A 120V EA
MSRP $22.35Surplus $10.47Eaton CH150 Miniature Circuit Breakers (MCBs) 50A 120V EA​ ARCA SKU: C15-1390 Brand: Eaton MPN: CH150 UPC: 78211310168 Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-1390
- Series:
- CH
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- CH Series Loadcenter
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 2 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 1-Pole, Plug-On Mount, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_36_V1T1_37_CAT.pdf
- TS PIK:
- 531261
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Current Rating:
- 50 A
- Country of Origin:
- United States
MSRP $22.35Surplus $10.47 -
Eaton BR150 Miniature Circuit Breakers (MCBs) 50A 120V EA
MSRP $45.38Surplus $10.16Eaton BR150 Miniature Circuit Breakers (MCBs) 50A 120V EA​ ARCA SKU: C15-1205 Brand: Eaton MPN: BR150 UPC: 78667636230 Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-1205
- Series:
- BR
- Type:
- Common Trip
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 1-Pole, Plug-On Mount, Common Trip
- Catalog:
- Eaton_36620_V1T1_84_CAT.pdf
- TS PIK:
- 21493851
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Country of Origin:
- Dominican Republic
MSRP $45.38Surplus $10.16 -
Siemens ED41B050 Molded Case Breakers (MCCBs) 50A 277V
MSRP $543.00Surplus $130.50SKU: C15-6176 Brand: Siemens MPN: ED41B050 UPC: 78364320915 Shipping Weight: 2.70 lbs. Shipping Height: 5.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-6176
- TS PIK:
- 115554986
- Short Description:
- 120/277 VAC 50/60 Hz, 125 VDC, 50 A at 40 Deg C, 22 kA, 1-Pole, 10 to 4 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Current Rating:
- 50 A
- Terminal Type:
- Load Lug
- Voltage Rating:
- 120/277 VAC at 50/60 Hz, 125 VDC (UL)
- Number of Poles:
- 1
- Size:
- 1 Inch W x 4.56 Inch D x 6.35 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Series:
- ED4
- Interrupting Rating:
- 65 kA at 120 VAC, 22 kA at 277 VAC, 30 kA at 125 VDC (UL)
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Country of Origin:
- Mexico
- Mounting:
- Plug-On
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Wire Size:
- 10 to 4 AWG (Copper/Aluminum)
- Approval:
- UL 489, CSA C22.2
MSRP $543.00Surplus $130.50 -
Siemens Q150 Miniature Circuit Breakers (MCBs)
MSRP $96.00Surplus $8.78Siemens Q150 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-4752 Brand: Siemens MPN: Q150 UPC: 66286200392 Shipping Weight: 0.30 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-4752
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 50 A
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Poles:
- 1
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Terminal Type:
- Load Lug
- Type:
- Miniature
- Type:
- Thermal and Fixed Magnetic Trip
- Used On:
- Loadcenter
- Volts:
- 120 VAC at 50/60 Hz
- Gauge:
- 8 to 6 AWG (Copper)
- Gauge:
- 8 to 4 AWG (Aluminum)
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 1-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-In Mount, QP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Series:
- QP
- Data Sheet:
- SiemensAG_06977_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- TS PIK:
- 126791629
- Number of Poles:
- 1
- Voltage Rating:
- 120 VAC
- Current Rating:
- 50 A
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
MSRP $96.00Surplus $8.78 -
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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 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
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