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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Siemens ED41B050 Molded Case Breakers (MCCBs) 50A 277V
MSRP $739.19Surplus $177.65SKU: 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 $739.19Surplus $177.65 -
Siemens ED42B050L Molded Case Breakers (MCCBs)
MSRP $2,213.47Surplus $176.49SKU: C15-7423 Brand: Siemens MPN: ED42B050L UPC: 78364308382 Shipping Weight: 2.65 lbs. Shipping Height: 3.00 In. Shipping Length: 6.00 In. Shipping Width: 7.00 In...- SKU:
- C15-7423
- TS PIK:
- 106248970
- Size:
- 2 Inch W x 4.56 Inch D x 6.35 Inch H
- Short Description:
- 480 VAC 50/60 Hz, 250 VDC, 50 A at 40 Deg C, 18 kA, 2-Pole, 10 to 1/0 AWG Copper/Aluminum, Line/Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Terminal Type:
- Line Lug
- Number of Poles:
- 2
- Voltage Rating:
- 480 VAC at 50/60 Hz, 250 VDC (UL)
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Series:
- ED4
- Interrupting Rating:
- 65 kA at 240 VAC, 18 kA at 480 VAC, 30 kA at 250 VDC (UL)
- Current Rating:
- 50 A
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Country of Origin:
- Mexico
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Approval:
- UL 489, CSA C22.2
- Mounting:
- Plug-On
MSRP $2,213.47Surplus $176.49 -
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Siemens HED42B050 Molded Case Breakers (MCCBs)
MSRP $5,254.62Surplus $1,418.75SKU: C15-16460 Brand: Siemens MPN: HED42B050 UPC: 78364321001 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16460
- Voltage Rating:
- 480 VAC at 50/60 Hz, 250 VDC (UL)
- Size:
- 2 Inch W x 4.56 Inch D x 6.35 Inch H
- Country of Origin:
- MEX
- Interrupting Rating:
- 100 kA at 240 VAC, 42 kA at 480 VAC, 30 kA at 250 VDC (UL)
- Number of Poles:
- 2
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Short Description:
- 480 VAC, 250 VDC, 50 A, 42 kA, 2-Pole, 10 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Current Rating:
- 50 A
- Series:
- HED4
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Mounting:
- Plug-On
- Approval:
- UL 489, CSA C22.2
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Terminal Type:
- Load Lug
MSRP $5,254.62Surplus $1,418.75 -
Siemens HHED63B050 Molded Case Breakers (MCCBs)
MSRP $5,008.22Surplus $314.64SKU: C15-7460 Brand: Siemens MPN: HHED63B050 UPC: 78364330809 Shipping Weight: 3.95 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7460
- TS PIK:
- 115459918
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Voltage Rating:
- 600 VAC at 50/60 Hz (UL)
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Series:
- HHED6
- Number of Poles:
- 3
- Terminal Type:
- Load Lug
- Size:
- 3 Inch W x 4.56 Inch D x 6.53 Inch H
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 VAC, 18 kA at 600 VAC (UL)
- Short Description:
- 600 VAC, 50 A at 40 Deg C, 65 kA at 480 VAC, 3-Pole, 10 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Fuseless, Current Limiting, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Current Rating:
- 50 A
- Country of Origin:
- Mexico
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Approval:
- UL 489, CSA C22.2
- Used On:
- P1/P2/P3/P4/P5 Panelboard
MSRP $5,008.22Surplus $314.64 -
Siemens Q150 Miniature Circuit Breakers (MCBs)
MSRP $130.68Surplus $11.95Siemens 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 $130.68Surplus $11.95 -
Siemens Q250 Miniature Circuit Breakers (MCBs) Type QP 2P 50A 120/240VAC 60Hz
MSRP $168.80Surplus $16.12Siemens Q250 Miniature Circuit Breakers (MCBs) Type QP 2P 50A 120/240VAC 60Hz​ ARCA SKU: C15-1486 Brand: Siemens MPN: Q250 UPC: 783643148642 Shipping Weight: 0.56 Shipping Height: 2.00 In...- SKU:
- C15-1486
- Approval:
- UL 489
- Amps:
- 50 A
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Poles:
- 2
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Terminal Type:
- Common Trip
- Used On:
- Load Center
- Volts:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 2-Pole, Plug-In Mount, QP-Frame, Common Trip, Circuit Breaker
- Specification/Technical:
- SiemensAG_57266_1_2_SPEC.pdf
- Number of Poles:
- 2
- Type:
- Common Trip
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
- Catalog:
- SiemensAG_23945_7_20_CAT.pdf
- Current Rating:
- 50 A
- Installation/Operator:
- SiemensAG_00053_INST.pdf
MSRP $168.80Surplus $16.12 -
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Siemens Q250H Miniature Circuit Breakers (MCBs)
MSRP $254.56Surplus $79.66Siemens Q250H Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6190 Brand: Siemens MPN: Q250H UPC: 78364314878 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6190
- TS PIK:
- 21366665
- Size:
- 2 Inch W x 3 Inch D x 3-1/8 Inch H
- Short Description:
- 120/240 VAC, 50 A, 22 kA, 2-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-In Mount, QPH Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Terminal Type:
- Load Lug
- Used On:
- Loadcenter
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07039_1_DATA.pdf
- Number of Poles:
- 2
- Interrupting Rating:
- 22 kA
- Type:
- Thermal and Fixed Magnetic, Common Trip
- Mounting:
- Plug-On
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Country of Origin:
- Mexico
MSRP $254.56Surplus $79.66 -
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Siemens Q350 Miniature Circuit Breakers (MCBs)
MSRP $83.88Surplus $97.77Siemens Q350 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6221 Brand: Siemens MPN: Q350 UPC: 66286200435 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6221
- TS PIK:
- 115704615
- Short Description:
- 240 VAC, 50 A, 10 kA, 3-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Voltage Rating:
- 240 V
- Current Rating:
- 50 A
- Type:
- Thermal Magnetic, Common Trip
- Number of Poles:
- 3
- Mounting:
- Plug-On
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_07066_1_DATA.pdf
- Used On:
- Load Centre Main, Feeder
- Size:
- 6 Inch Width x 7 Inch Depth x 4 Inch Height
- Country of Origin:
- Mexico
MSRP $83.88Surplus $97.77 -
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Siemens Q350H Miniature Circuit Breakers (MCBs)
MSRP $544.52Surplus $184.46SKU: C15-10567 Brand: Siemens MPN: Q350H UPC: 78364315645 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10567
- TS PIK:
- 21366695
- Mounting:
- Plug-On
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Data Sheet:
- SiemensAG_07068_1_DATA.pdf
- Size:
- 3 Inch W x 3 Inch D x 3-1/8 Inch H
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Terminal Type:
- Load Lug
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Used On:
- Loadcenter
- Current Rating:
- 50 A
- Type:
- Thermal and Fixed Magnetic, Common Trip
- Interrupting Rating:
- 22 kA
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Short Description:
- 240 VAC, 50 A, 22 kA, 3-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QPH Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Country of Origin:
- Mexico
MSRP $544.52Surplus $184.46 -
Siemens QE250 Miniature Circuit Breakers (MCBs)
MSRP $680.65Surplus $311.72SKU: C15-10580 Brand: Siemens MPN: QE250 UPC: 78364330594 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10580
- TS PIK:
- 115559357
- Used On:
- Loadcenter
- Type:
- Equipment Protector
- Mounting:
- Plug-On
- Catalog:
- SiemensAG_00562_1_40_CAT.pdf
- Current Rating:
- 50 A
- Data Sheet:
- SiemensAG_07093_1_DATA.pdf
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 30 mA, 2-Pole, Plug-On Mount, QE Frame, Ground Fault Equipment Protector, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Number of Poles:
- 2
- Size:
- 2 Inch W x 3 Inch D x 4.41 Inch H
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Philippines
MSRP $680.65Surplus $311.72
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