
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 Q21515CT2 Miniature Circuit Breakers (MCBs)
MSRP $197.50Surplus $50.54Siemens Q21515CT2 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8783 Brand: Siemens MPN: Q21515CT2 UPC: 78364308391 Shipping Weight: 0.75 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8783
- TS PIK:
- 21333534
- Mounting:
- Plug-On
- Short Description:
- 120/240 VAC, 15 A, 10 kA, (2) 2-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QT Frame, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Terminal Type:
- Load Lug
- Series:
- QT
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Quadplex, Common Trip
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Current Rating:
- 15 A
- Catalog:
- SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_06996_1_DATA.pdf
- Number of Poles:
- (2) Inside, (2) Outside
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Used On:
- Loadcenter
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $197.50Surplus $50.54 -
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Siemens Q22020CT2NC Molded Case Breakers (MCCBs)
MSRP $154.00Surplus $41.58SKU: C15-17531 Brand: Siemens MPN: Q22020CT2NC UPC: 88762102432 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17531
- Current Rating:
- 20 A
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Series:
- QT
- Mounting:
- Plug-On
- Catalog:
- SiemensAG_00562_1_42_CAT.pdf
- Data Sheet:
- SiemensAG_07011_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Country of Origin:
- MEX
- Number of Poles:
- (2) Inside, (2) Outside
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Used On:
- Loadcenter
- Short Description:
- 120/240 VAC, 20 A, 10 kA, (2) 2-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QT Frame, Non-CTL, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Approval:
- UL 489, CSA C22.2
- Terminal Type:
- Load Lug
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Quadplex, Common Trip, Non-Control
MSRP $154.00Surplus $41.58 -
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Siemens Q22050CT2 Molded Case Breakers (MCCBs)
MSRP $59.00Surplus $15.93SKU: C15-17533 Brand: Siemens MPN: Q22050CT2 UPC: 88762102438 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17533
- Short Description:
- 120/240 VAC, 20/50 A, 10 kA, (2) 2-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QT Frame, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Interrupting Rating:
- 10 kA
- Number of Poles:
- (2) Inside, (2) Outside
- Country of Origin:
- MEX
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Approval:
- UL 489, CSA C22.2
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_00562_1_45-1_47_CAT.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Quadplex, Common Trip
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum) Inside, 14 to 6 AWG (Copper/Aluminum) Outside
- Used On:
- Loadcenter
- Data Sheet:
- SiemensAG_07016_1_DATA.pdf
- Mounting:
- Plug-On
- Current Rating:
- 50 A (Inside), 20 A (Outside)
- Installation/Operator:
- SiemensAG_00215_INST.pdf
MSRP $59.00Surplus $15.93 -
Contact Us For Quote
Siemens Q23020CT2NC Molded Case Breakers (MCCBs)
MSRP $154.00Surplus $41.58SKU: C15-17536 Brand: Siemens MPN: Q23020CT2NC UPC: 88762102435 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17536
- Used On:
- Loadcenter
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Data Sheet:
- SiemensAG_07026_1_DATA.pdf
- Country of Origin:
- MEX
- Terminal Type:
- Load Lug
- Number of Poles:
- (2) Inside, (2) Outside
- Current Rating:
- 20 A (Inside), 30 A (Outside)
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Catalog:
- SiemensAG_00562_1_42_CAT.pdf
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Approval:
- UL 489, CSA C22.2
- Short Description:
- 120/240 VAC, 30/20 A, 10 kA, (2) 2-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QT Frame, Non-CTL, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Series:
- QT
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Quadplex, Common Trip, Non-Control
MSRP $154.00Surplus $41.58 -
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Siemens Q23030CT2NC Molded Case Breakers (MCCBs)
MSRP $154.00Surplus $41.58SKU: C15-17539 Brand: Siemens MPN: Q23030CT2NC UPC: 88762102451 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17539
- Current Rating:
- 30 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Catalog:
- SiemensAG_00562_1_42_CAT.pdf
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Quadplex, Common Trip, Non-Control
- Terminal Type:
- Load Lug
- Mounting:
- Plug-On
- Number of Poles:
- (2) Inside, (2) Outside
- Used On:
- Loadcenter
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Country of Origin:
- MEX
- Short Description:
- 120/240 VAC, 30 A, 10 kA, (2) 2-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QT Frame, Non-CTL, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Series:
- QT
- Data Sheet:
- SiemensAG_07027_1_DATA.pdf
- Approval:
- UL 489, CSA C22.2
MSRP $154.00Surplus $41.58 -
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Siemens Q24020CT2 Miniature Circuit Breakers (MCBs)
MSRP $197.50Surplus $68.27SKU: C15-8952 Brand: Siemens MPN: Q24020CT2 UPC: 78364308395 Shipping Weight: 0.75 lbs. Shipping Height: 4.00 In. Shipping Length: 2.00 In. Shipping Width: 3.00 In...- SKU:
- C15-8952
- TS PIK:
- 115559523
- Current Rating:
- 20 A (Inside), 40 A (Outside)
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Country of Origin:
- Mexico
- Number of Poles:
- (2) Inside, (2) Outside
- Terminal Type:
- Lug
- Mounting:
- Plug-On
- Short Description:
- 120/240 VAC, 40/20 A, 10 kA, (2) 2-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QT Frame, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Series:
- QT
- Type:
- Thermal/Fixed Magnetic, Common Trip, Quadplex
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum) Inside, 8 to 6 AWG (Copper)/8 to 4 AWG (Aluminum) Outside
- Data Sheet:
- SiemensAG_07034_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Catalog:
- SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
- Interrupting Rating:
- 10 kA
- Used On:
- Loadcenter
- Approval:
- UL 489
MSRP $197.50Surplus $68.27 -
Contact Us For Quote
Siemens Q24040CT2 Miniature Circuit Breakers (MCBs)
MSRP $80.00Surplus $99.01SKU: C15-10551 Brand: Siemens MPN: Q24040CT2 UPC: 78364308397 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10551
- TS PIK:
- 115559525
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Current Rating:
- 40 A
- Series:
- QT
- Catalog:
- SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
- Short Description:
- 120/240 VAC, 40 A, 10 kA, (2) 2-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QT Frame, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Number of Poles:
- (2) Inside, (2) Outside
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Terminal Type:
- Lug
- Used On:
- Loadcenter
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Approval:
- UL 489
- Mounting:
- Plug-On
- Country of Origin:
- Mexico
- Data Sheet:
- SiemensAG_07036_1_DATA.pdf
- Interrupting Rating:
- 10 kA
- Type:
- Thermal/Fixed Magnetic, Common Trip, Quadplex
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
MSRP $80.00Surplus $99.01
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