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 BQD125 Miniature Circuit Breakers (MCBs) 1P 25A 277V
MSRP $416.56Surplus $130.36Siemens BQD125 Miniature Circuit Breakers (MCBs) 1P 25A 277V​ ARCA SKU: C15-6150 Brand: Siemens MPN: BQD125 UPC: 78364327710 Shipping Weight: 0.55 lbs. Shipping Height: 1.00 In...- SKU:
- C15-6150
- TS PIK:
- 21366179
- Short Description:
- 277 VAC, 25 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Number of Poles:
- 1
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Current Rating:
- 25 A
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05414_1_DATA.pdf
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Series:
- BQD
- Country of Origin:
- Mexico
- Approval:
- UL
- Application:
- Lighting, Distribution
- Installation:
- Bolt-On
MSRP $416.56Surplus $130.36 -
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Siemens BQD135 Miniature Circuit Breakers (MCBs) 1P 35A 277V
MSRP $416.56Surplus $135.79Siemens BQD135 Miniature Circuit Breakers (MCBs) 1P 35A 277V​ ARCA SKU: C15-6152 Brand: Siemens MPN: BQD135 UPC: 78364327712 Shipping Weight: 0.60 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6152
- TS PIK:
- 21366180
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Application:
- Lighting, Distribution
- Approval:
- UL
- Series:
- BQD
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Installation:
- Bolt-On
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Data Sheet:
- SiemensAG_05415_1_DATA.pdf
- Short Description:
- 277 VAC, 35 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Current Rating:
- 35 A
- Country of Origin:
- MEX
- Number of Poles:
- 1
- Installation/Operator:
- SiemensAG_00221_INST.pdf
MSRP $416.56Surplus $135.79 -
Siemens BQD145 Miniature Circuit Breakers (MCBs) 1P 45A 277V
MSRP $416.56Surplus $99.55Siemens BQD145 Miniature Circuit Breakers (MCBs) 1P 45A 277V​ ARCA SKU: C15-6153 Brand: Siemens MPN: BQD145 UPC: 78364327714 Shipping Weight: 0.55 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6153
- TS PIK:
- 21366723
- Current Rating:
- 45 A
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Series:
- BQD
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Short Description:
- 277 VAC, 45 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Number of Poles:
- 1
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Data Sheet:
- SiemensAG_05417_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Country of Origin:
- Mexico
- Approval:
- UL
- Installation:
- Bolt-On
- Application:
- Lighting, Distribution
MSRP $416.56Surplus $99.55 -
Siemens BQD150 Miniature Circuit Breakers (MCBs) 1P 50A 277V
MSRP $416.56Surplus $82.29Siemens BQD150 Miniature Circuit Breakers (MCBs) 1P 50A 277V​ ARCA SKU: C15-6154 Brand: Siemens MPN: BQD150 UPC: 78364327715 Shipping Weight: 0.60 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6154
- TS PIK:
- 21368629
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Current Rating:
- 50 A
- Data Sheet:
- SiemensAG_05418_1_DATA.pdf
- Short Description:
- 277 VAC, 50 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Series:
- BQD
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Number of Poles:
- 1
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Country of Origin:
- Mexico
- Installation:
- Bolt-On
- Approval:
- UL
- Application:
- Lighting, Distribution
MSRP $416.56Surplus $82.29 -
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Siemens BQD170 Miniature Circuit Breakers (MCBs)
MSRP $579.91Surplus $156.58SKU: C15-15676 Brand: Siemens MPN: BQD170 UPC: 78364327717 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15676
- Country of Origin:
- MEX
- Series:
- BQD
- Number of Poles:
- 1
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Short Description:
- 277 VAC, 70 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Approval:
- UL
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Application:
- Lighting, Distribution
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Installation:
- Bolt-On
- Data Sheet:
- SiemensAG_05420_1_DATA.pdf
- Current Rating:
- 70 A
MSRP $579.91Surplus $156.58 -
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Siemens BQD190 Miniature Circuit Breakers (MCBs)
MSRP $579.91Surplus $156.58SKU: C15-15678 Brand: Siemens MPN: BQD190 UPC: 78364327719 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15678
- Country of Origin:
- MEX
- Series:
- BQD
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Approval:
- UL
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05421_1_DATA.pdf
- Current Rating:
- 90 A
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Application:
- Lighting, Distribution
- Number of Poles:
- 1
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Short Description:
- 277 VAC, 90 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Installation:
- Bolt-On
MSRP $579.91Surplus $156.58 -
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Siemens CQD115 Molded Case Breakers (MCCBs)
MSRP $105.87Surplus $28.59SKU: C15-15809 Brand: Siemens MPN: CQD115 UPC: 78364327747 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15809
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Approval:
- UL
- Number of Poles:
- 1
- Series:
- CQD
- Mounting:
- Cable In, Cable Out, DIN Rail
- Size:
- 1 Inch W x 2.88 Inch D x 4.9 Inch H
- Interrupting Rating:
- 65 kA at 120 VAC, 14 kA at 277 VAC/125 VDC (UL)
- Short Description:
- 277 VAC, 125 VDC, 15 A, 14 kA, 1-Pole, 14 to 6 AWG Copper/12 to 6 AWG Aluminum, Load Lug Terminal, DIN Rail Mount, CQD Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Terminal Type:
- Load Lug
- Current Rating:
- 15 A
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Country of Origin:
- MEX
- Catalog:
- SiemensAG_01698_17_1_17_11_CAT.pdf
MSRP $105.87Surplus $28.59 -
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Siemens HED41B025 Molded Case Breakers (MCCBs)
MSRP $2,261.12Surplus $610.50SKU: C15-16448 Brand: Siemens MPN: HED41B025 UPC: 78364320983 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16448
- Interrupting Rating:
- 100 kA at 120 VAC, 65 kA at 277 VAC, 30 kA at 125 VDC (UL)
- Short Description:
- 277 VAC, 125 VDC, 25 A, 65 kA, 1-Pole, 14 to 10 AWG Copper/12 to 10 AWG Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Country of Origin:
- MEX
- Current Rating:
- 25 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Mounting:
- Plug-On
- Series:
- HED4
- Number of Poles:
- 1
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Terminal Type:
- Load Lug
- Size:
- 1 Inch W x 4.56 Inch D x 6.35 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Approval:
- UL 489, CSA C22.2
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
MSRP $2,261.12Surplus $610.50 -
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Siemens HED41B040 Molded Case Breakers (MCCBs)
MSRP $2,261.12Surplus $610.50SKU: C15-16449 Brand: Siemens MPN: HED41B040 UPC: 78364320986 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16449
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Wire Size:
- 10 to 4 AWG (Copper/Aluminum)
- Interrupting Rating:
- 100 kA at 120 VAC, 25 kA at 277 VAC, 30 kA at 125 VDC (UL)
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Short Description:
- 277 VAC, 125 VDC, 40 A, 25 kA, 1-Pole, 10 to 4 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Country of Origin:
- MEX
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Current Rating:
- 40 A
- Terminal Type:
- Load Lug
- Size:
- 1 Inch W x 4.56 Inch D x 6.35 Inch H
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Series:
- HED4
- Mounting:
- Plug-On
- Approval:
- UL 489, CSA C22.2
- Number of Poles:
- 1
MSRP $2,261.12Surplus $610.50
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