
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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Siemens Q340 Miniature Circuit Breakers (MCBs) 3P 40A
MSRP $329.00Surplus $58.80Siemens Q340 Miniature Circuit Breakers (MCBs) 3P 40A​ ARCA SKU: C15-6220 Brand: Siemens MPN: Q340 UPC: 66286200434 Shipping Weight: 0.90 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6220
- TS PIK:
- 21367351
- Voltage Rating:
- 240 V
- Current Rating:
- 40 A
- Used On:
- Load Centre Main, Feeder
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Size:
- 3.7 Inch Width x 12.8 Inch Depth x 3.4 Inch Height
- Number of Poles:
- 3
- Mounting:
- Plug-On
- Short Description:
- 240 VAC, 40 A, 10 kA, 3-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-In Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Interrupting Rating:
- 10 kA
- Type:
- Thermal Magnetic, Common Trip
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07063_1_DATA.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $329.00Surplus $58.80 -
Siemens Q320 Miniature Circuit Breakers (MCBs) 3P 20A EA
MSRP $329.00Surplus $53.20SKU: C15-6194 Brand: Siemens MPN: Q320 UPC: 66286200430 Shipping Weight: 1.00 lbs. Shipping Height: 2.50 In. Shipping Length: 3.00 In. Shipping Width: 3.00 In...- SKU:
- C15-6194
- TS PIK:
- 21366754
- Catalog:
- SiemensAG_00876_1_12_CAT.pdf
- Voltage Rating:
- 240 V
- Short Description:
- 240 VAC, 20 A, 10 kA Interrupt, 3-Pole, Load Centre Main, Feeder, Thermal Magnetic, Common Trip, Miniature Circuit Breaker
- Type:
- Thermal Magnetic, Common Trip
- Data Sheet:
- SiemensAG_01651_1_DATA.pdf
- Current Rating:
- 20 A
- Size:
- 3.7 Inch Width x 12.8 Inch Depth x 3.4 Inch Height
- Used On:
- Load Centre Main, Feeder
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 3
- Mounting:
- Plug-On
- Country of Origin:
- MEX
- Approval:
- UL 489
MSRP $329.00Surplus $53.20 -
Siemens Q3100 Miniature Circuit Breakers (MCBs)
MSRP $141.03Surplus $87.48SKU: C15-6275 Brand: Siemens MPN: Q3100 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6275
- TS PIK:
- 115704614
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_01547_1_DATA.pdf
- Used On:
- Load Centre Main, Feeder
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Catalog:
- SiemensAG_01502_1_12_CAT.pdf
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 3
- Current Rating:
- 100 A
- Voltage Rating:
- 240 V
- Type:
- Thermal Magnetic, Common Trip
- Short Description:
- 240 V, 100 A, 10 kA, 3-Pole, Plug-On, QP/MP Frame, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $141.03Surplus $87.48 -
Siemens Q3100H Miniature Circuit Breakers (MCBs) EA
MSRP $700.00Surplus $63.81SKU: C15-10560 Brand: Siemens MPN: Q3100H UPC: 78364317082 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10560
- TS PIK:
- 21366919
- Short Description:
- 240 VAC, 100 A, 22 kA, 3-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QPH Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Voltage Rating:
- 240 V
- Mounting:
- Plug-On
- Type:
- Thermal Magnetic
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Interrupting Rating:
- 22 kA
- Data Sheet:
- SiemensAG_07053_1_DATA.pdf
- Current Rating:
- 100 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Number of Poles:
- 3
- Used On:
- Load Centre Main, Feeder
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $700.00Surplus $63.81 -
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Siemens Q315 Miniature Circuit Breakers (MCBs) 3P 15A
MSRP $127.36Surplus $53.20Siemens Q315 Miniature Circuit Breakers (MCBs) 3P 15A​ ARCA SKU: C15-6276 Brand: Siemens MPN: Q315 UPC: 66286200429 Shipping Weight: 0.90 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6276
- TS PIK:
- 115704615
- Used On:
- Load Centre Main, Feeder
- Short Description:
- 240 VAC, 15 A, 10 kA, 3-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Data Sheet:
- SiemensAG_07055_1_DATA.pdf
- Type:
- Thermal Magnetic, Common Trip
- Interrupting Rating:
- 10 kA
- Current Rating:
- 15 A
- Number of Poles:
- 3
- Size:
- 4 Inch Width x 12.8 Inch Depth x 3.4 Inch Height
- Voltage Rating:
- 240 V
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Mounting:
- Plug-On
- Country of Origin:
- MEX
- Approval:
- UL 489
MSRP $127.36Surplus $53.20 -
Siemens Q325 Other Circuit Breakers Q 3P 25A 240V 50/60Hz 3Ph EA
MSRP $622.50Surplus $79.80Siemens Q325 Other Circuit Breakers Q 3P 25A 240V 50/60Hz 3Ph EA​ ARCA SKU: C15-4735 Brand: Siemens MPN: Q325 UPC: 783643156753 Shipping Weight: 0.95 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-4735
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Size:
- 3 Inch Width x 3 Inch Depth x 3 Inch Height
- Volts:
- 240 V
- Amps:
- 32 A
- Used On:
- Load Centre Main
- Used On:
- Feeder
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Short Description:
- 240 VAC, 25 A, 10 kA, 3-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07059_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Current Rating:
- 25 A
- Voltage Rating:
- 240 V
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $622.50Surplus $79.80 -
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Siemens Q335 Molded Case Breakers (MCCBs)
MSRP $211.00Surplus $56.97SKU: C15-17567 Brand: Siemens MPN: Q335 UPC: 78364317104 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17567
- Interrupting Rating:
- 10 kA
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Used On:
- Load Centre Main, Feeder
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07062_1_DATA.pdf
- Mounting:
- Plug-On
- Current Rating:
- 35 A
- Voltage Rating:
- 240 V
- Number of Poles:
- 3
- Approval:
- UL 489
- Size:
- 3 Inch Width x 3 Inch Depth x 3 Inch Height
- Type:
- Thermal Magnetic
- Short Description:
- 240 VAC, 35 A, 10 kA, 3-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Country of Origin:
- MEX
MSRP $211.00Surplus $56.97 -
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Siemens Q345 Miniature Circuit Breakers (MCBs)
MSRP $322.50Surplus $76.03SKU: C15-6277 Brand: Siemens MPN: Q345 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6277
- Interrupting Rating:
- 10 kA
- Size:
- 3 Inch Width x 3 Inch Depth x 3 Inch Height
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Number of Poles:
- 3
- Type:
- Thermal Magnetic
- Voltage Rating:
- 240 V
- Short Description:
- 240 VAC, 45 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
- Mounting:
- Plug-On
- Current Rating:
- 45 A
- Data Sheet:
- SiemensAG_07065_1_DATA.pdf
- Used On:
- Load Centre Main, Feeder
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- TS PIK:
- 21366646
- Approval:
- UL 489
- Country of Origin:
- MEX
MSRP $322.50Surplus $76.03 -
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Siemens Q350 Miniature Circuit Breakers (MCBs)
MSRP $61.62Surplus $71.82Siemens 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
- Approval:
- UL 489
MSRP $61.62Surplus $71.82 -
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Siemens Q360 Miniature Circuit Breakers (MCBs)
MSRP $510.53Surplus $102.89SKU: C15-8488 Brand: Siemens MPN: Q360 UPC: 78312611782 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-8488
- TS PIK:
- 21332082
- Country of Origin:
- MEX
- Short Description:
- 240 V, 60 A, 10 kA, 3-Pole, Plug-On, QP/MP Frame, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Mounting:
- Plug-On
- Current Rating:
- 60 A
- Approval:
- UL 489
- Voltage Rating:
- 240 V
- Catalog:
- SiemensAG_01502_1_12_CAT.pdf
- Used On:
- Load Centre Main, Feeder
- Data Sheet:
- SiemensAG_01549_1_DATA.pdf
- Interrupting Rating:
- 10 kA
- Size:
- 3 Inch Width x 3 Inch Depth x 3 Inch Height
- Number of Poles:
- 3
- Type:
- Thermal Magnetic, Common Trip
MSRP $510.53Surplus $102.89 -
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Siemens Q390 Molded Case Breakers (MCCBs)
MSRP $88.66Surplus $23.94SKU: C15-19057 Brand: Siemens MPN: Q390 UPC: 66286200439 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19057
- Voltage Rating:
- 240 V
- Number of Poles:
- 3
- Country of Origin:
- MEX
- Current Rating:
- 90 A
- Size:
- 3.7 Inch Width x 12.8 Inch Depth x 3.4 Inch Height
- Type:
- Thermal Magnetic, Common Trip
- Approval:
- UL 489
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07076_1_DATA.pdf
- Short Description:
- 240 VAC, 90 A, 10 kA, 3-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Mounting:
- Plug-On
- Used On:
- Load Centre Main, Feeder
- Interrupting Rating:
- 10 kA
MSRP $88.66Surplus $23.94 -
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Siemens Q330 Miniature Circuit Breakers (MCBs) Q 3P 30A 240V EA
MSRP $329.00Surplus $53.20Siemens Q330 Miniature Circuit Breakers (MCBs) Q 3P 30A 240V EA​ ARCA SKU: C15-3643 Brand: Siemens MPN: Q330 UPC: 78364314841 Shipping Weight: 0.95 lbs. Shipping Height: 3.00 In...- SKU:
- C15-3643
- Approval:
- UL 489
- Amps:
- 30 A
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Poles:
- 3
- Size:
- 3 Inch Width x 3 Inch Depth x 3 Inch Height
- Terminal Type:
- Thermal Magnetic
- Type:
- Common Trip
- Used On:
- Load Centre Main
- Used On:
- Feeder
- Volts:
- 240 V
- Short Description:
- 240 V, 30 A, 10 kA, 3-Pole, Plug-In, QP/MP Frame, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Data Sheet:
- SiemensAG_01548_1_DATA.pdf
- TS PIK:
- 21366630
- Number of Poles:
- 3
- Catalog:
- SiemensAG_01502_1_12_CAT.pdf
- Voltage Rating:
- 240 V
- Current Rating:
- 30 A
- Country of Origin:
- Mexico
MSRP $329.00Surplus $53.20
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