
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 BQD345 Miniature Circuit Breakers (MCBs) 3P 45A 277V
MSRP $1,202.00Surplus $337.82Siemens BQD345 Miniature Circuit Breakers (MCBs) 3P 45A 277V​ ARCA SKU: C15-3566 Brand: Siemens MPN: BQD345 UPC: 78364327740 Shipping Weight: 1.70 lbs. Shipping Height: 3.00 In...- SKU:
- C15-3566
- Series:
- BQD
- Type:
- Branch
- Type:
- Molded Case
- Type:
- Thermal and Fixed Magnetic
- Approval:
- UL
- Volts:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Amps:
- 32 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Poles:
- 3
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
- Application:
- Lighting
- Application:
- Distribution
- Installation:
- Bolt-On
- Short Description:
- 480 VAC Star/277 VAC, 45 A, 14 kA, 3-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Data Sheet:
- SiemensAG_05440_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- TS PIK:
- 21368658
- Number of Poles:
- 3
- Current Rating:
- 45 A
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Country of Origin:
- Mexico
MSRP $1,202.00Surplus $337.82 -
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Siemens BQD310000S01 Miniature Circuit Breakers (MCBs)
MSRP $2,264.00Surplus $611.28SKU: C15-15679 Brand: Siemens MPN: BQD310000S01 UPC: 78364300054 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-15679
- Short Description:
- 480 VAC Star/277 VAC 50/60 Hz, 100 A, 14 kA, 3-Pole, Low-Tab Mount, Molded Case, Shunt Trip, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Series:
- BQD
- Number of Poles:
- 3
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
- Country of Origin:
- MEX
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05434_1_DATA.pdf
- Current Rating:
- 100 A
- Approval:
- UL
- Application:
- Lighting, Distribution
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Installation:
- Bolt-On
MSRP $2,264.00Surplus $611.28 -
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Siemens BQD325 Everything Else 3P 25A
MSRP $1,155.00Surplus $291.27SKU: C15-7406 Brand: Siemens MPN: BQD325 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7406
- TS PIK:
- 106248896
- Short Description:
- 480 VAC Star/277 VAC, 25 A, 14 kA, 3-Pole, Bolt-On Mount, Molded Case, Branch, Thermal Magnetic, Panelboard Circuit Breaker
- Number of Poles:
- 3
- Catalog:
- SiemensAG_00876_5_18_5_20_CAT.pdf
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Installation:
- Bolt-On
- Application:
- Lighting, Distribution
- Series:
- BQD
- Data Sheet:
- SiemensAG_01619_1_DATA.pdf
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Country of Origin:
- MEX
- Current Rating:
- 25 A
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
- Approval:
- UL, CE
MSRP $1,155.00Surplus $291.27 -
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Siemens BQD33000S01 Molded Case Breakers (MCCBs)
MSRP $1,949.00Surplus $526.23SKU: C15-15681 Brand: Siemens MPN: BQD33000S01 UPC: 78364310684 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15681
- Series:
- BQD
- Current Rating:
- 30 A
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
- Approval:
- UL, CE
- Short Description:
- 480 VAC Star/277 VAC 50/60 Hz, 30 A, 14 kA, 3-Pole, Low-Tab Mount, Molded Case, Shunt Trip, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Country of Origin:
- MEX
- Installation:
- Bolt-On
- Application:
- Lighting, Distribution
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05437_1_DATA.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Catalog:
- SiemensAG_00564_7_29_7_32_CAT.pdf
MSRP $1,949.00Surplus $526.23 -
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Siemens BQD335 Miniature Circuit Breakers (MCBs) 3P 35A 277
MSRP $1,155.00Surplus $337.82Siemens BQD335 Miniature Circuit Breakers (MCBs) 3P 35A 277​ ARCA SKU: C15-7539 Brand: Siemens MPN: BQD335 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-7539
- TS PIK:
- 120152086
- Short Description:
- 480 VAC Star/277 VAC, 35 A, 14 kA, 3-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Number of Poles:
- 3
- Data Sheet:
- SiemensAG_05438_1_DATA.pdf
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Country of Origin:
- MEX
- Series:
- BQD
- Installation:
- Bolt-On
- Application:
- Lighting, Distribution
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Approval:
- UL
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
- Current Rating:
- 35 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
MSRP $1,155.00Surplus $337.82 -
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Siemens BQD34000S01 Molded Case Breakers (MCCBs)
MSRP $1,949.00Surplus $526.23SKU: C15-15682 Brand: Siemens MPN: BQD34000S01 UPC: 78364310685 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15682
- Number of Poles:
- 3
- Country of Origin:
- MEX
- Short Description:
- 480 VAC Star/277 VAC 50/60 Hz, 40 A, 14 kA, 3-Pole, Low-Tab Mount, Molded Case, Shunt Trip, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Series:
- BQD
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
- Current Rating:
- 40 A
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Application:
- Lighting, Distribution
- Approval:
- UL
- Data Sheet:
- SiemensAG_05439_1_DATA.pdf
- Catalog:
- SiemensAG_00564_7_29_7_32_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Installation:
- Bolt-On
- Installation/Operator:
- SiemensAG_00221_INST.pdf
MSRP $1,949.00Surplus $526.23 -
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Siemens BQD36000S01 Molded Case Breakers (MCCBs)
MSRP $1,949.00Surplus $405.55SKU: U00-7907 Brand: Siemens MPN: BQD36000S01 UPC: 78364310690 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-7907
- Country of Origin:
- MEX
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Current Rating:
- 60 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Approval:
- UL
- Application:
- Lighting, Distribution
- Number of Poles:
- 3
- Installation:
- Bolt-On
- Catalog:
- SiemensAG_00564_7_29_7_32_CAT.pdf
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Short Description:
- 480 VAC Star/277 VAC 50/60 Hz, 60 A, 14 kA, 3-Pole, Low-Tab Mount, Molded Case, Shunt Trip, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Data Sheet:
- SiemensAG_05441_1_DATA.pdf
- Series:
- BQD
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
MSRP $1,949.00Surplus $405.55 -
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Siemens BQD37000S01 Miniature Circuit Breakers (MCBs)
MSRP $2,264.00Surplus $611.28SKU: C15-15684 Brand: Siemens MPN: BQD37000S01 UPC: 78364333339 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15684
- Country of Origin:
- MEX
- Series:
- BQD
- Number of Poles:
- 3
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC (UL)
- Short Description:
- 480 VAC Star/277 VAC 50/60 Hz, 70 A, 14 kA, 3-Pole, Low-Tab Mount, Molded Case, Shunt Trip, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Current Rating:
- 70 A
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Catalog:
- SiemensAG_00564_7_29_7_32_CAT.pdf
- Data Sheet:
- SiemensAG_05442_1_DATA.pdf
- Installation:
- Bolt-On
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Approval:
- UL
- Application:
- Lighting, Distribution
MSRP $2,264.00Surplus $611.28 -
Siemens CQD315 Din Rail Mounted Circuit Breakers
MSRP $1,000.00Surplus $308.15SKU: C15-10377 Brand: Siemens MPN: CQD315 UPC: 78364327773 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10377
- TS PIK:
- 115555357
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Terminal Type:
- Load Lug
- Series:
- CQD
- Interrupting Rating:
- 65 kA at 240 VAC, 14 kA at 480 Star/277 VAC (UL)
- Short Description:
- 480 VAC Star/277 VAC, 15 A, 14 kA, 3-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
- Mounting:
- Cable In, Cable Out, DIN Rail
- Country of Origin:
- Mexico
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Current Rating:
- 15 A
- Number of Poles:
- 3
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Size:
- 3 Inch W x 2.88 Inch D x 4.9 Inch H
- Catalog:
- SiemensAG_01698_17_1_17_11_CAT.pdf
- Approval:
- UL
MSRP $1,000.00Surplus $308.15 -
Siemens CQD330 Din Rail Mounted Circuit Breakers
MSRP $1,300.00Surplus $396.44SKU: C15-10379 Brand: Siemens MPN: CQD330 UPC: 78364327776 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10379
- TS PIK:
- 115555360
- Country of Origin:
- Mexico
- Terminal Type:
- Load Lug
- Number of Poles:
- 3
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Mounting:
- Cable In, Cable Out, DIN Rail
- Interrupting Rating:
- 65 kA at 240 VAC, 14 kA at 480 Star/277 VAC (UL)
- Catalog:
- SiemensAG_01698_17_1_17_11_CAT.pdf
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
- Size:
- 3 Inch W x 2.88 Inch D x 4.9 Inch H
- Approval:
- UL
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Current Rating:
- 30 A
- Series:
- CQD
- Short Description:
- 480 VAC Star/277 VAC, 30 A, 14 kA, 3-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
MSRP $1,300.00Surplus $396.44 -
Siemens CQD340 Din Rail Mounted Circuit Breakers
MSRP $334.00Surplus $222.11SKU: C15-10380 Brand: Siemens MPN: CQD340 UPC: 78364327778 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10380
- TS PIK:
- 115555362
- Country of Origin:
- MEX
- Mounting:
- Cable In, Cable Out, DIN Rail
- Series:
- CQD
- Interrupting Rating:
- 65 kA at 240 VAC, 14 kA at 480 Star/277 VAC (UL)
- Approval:
- UL
- Short Description:
- 480 VAC Star/277 VAC, 40 A, 14 kA, 3-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
- Size:
- 3 Inch W x 2.88 Inch D x 4.9 Inch H
- Current Rating:
- 40 A
- Number of Poles:
- 3
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_01698_17_1_17_11_CAT.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz (UL)
MSRP $334.00Surplus $222.11
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