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 BQ2B040H Molded Case Breakers (MCCBs)
MSRP $75.77Surplus $106.40SKU: C15-12050 Brand: Siemens MPN: BQ2B040H UPC: 783643161610 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-12050
- Short Description:
- 120/240 VAC, 40 A, 22 kA, 2-Pole, Load Lug Terminal, BQH Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Series:
- BQH
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Current Rating:
- 40 A
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Country of Origin:
- MEX
- Terminal Type:
- Load Lug
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Interrupting Rating:
- 22 kA at 120/240 VAC Symmetrical (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Approval:
- UL 489, CSA C22.2
- Data Sheet:
- SiemensAG_05370_1_DATA.pdf
MSRP $75.77Surplus $106.40 -
Siemens BQ2B045 Miniature Circuit Breakers (MCBs) 2P 45A 120V
MSRP $192.50Surplus $55.24Siemens BQ2B045 Miniature Circuit Breakers (MCBs) 2P 45A 120V​ ARCA SKU: C15-6254 Brand: Siemens MPN: BQ2B045 UPC: 78364316121 Shipping Weight: 0.70 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6254
- TS PIK:
- 126638515
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Current Rating:
- 45 A
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Series:
- BQ
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Terminal Type:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05372_1_DATA.pdf
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
- Frame Type:
- QD
MSRP $192.50Surplus $55.24 -
Siemens BQ2B050 Miniature Circuit Breakers (MCBs)
MSRP $188.50Surplus $33.60Siemens BQ2B050 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6084 Brand: Siemens MPN: BQ2B050 UPC: 78364310244 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6084
- TS PIK:
- 21366180
- Series:
- BQ
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Current Rating:
- 50 A
- Terminal Type:
- Load Lug
- Mounting:
- Bolt-On
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Number of Poles:
- 2
- Catalog:
- SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $188.50Surplus $33.60 -
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Siemens BQ2B050QLD Molded Case Breakers (MCCBs)
MSRP $234.00Surplus $63.18SKU: C15-15643 Brand: Siemens MPN: BQ2B050QLD UPC: 78364341187 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15643
- Size:
- 2 Inch W x 3 Inch D x 4-1/2 Inch H
- Series:
- BQXD
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Approval:
- UL 489, CSA C22.2
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 2-Pole, Line/Load Lug Terminal, DIN Rail Mount, BQLD Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Country of Origin:
- MEX
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Wire Size:
- 8 to 1 AWG (Copper), 6 to 1/0 AWG (Aluminum)
- Mounting:
- DIN Rail
- Data Sheet:
- SiemensAG_05374_1_DATA.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Catalog:
- SiemensAG_01698_17_1_17_8_CAT.pdf
- Terminal Type:
- Line Lug
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
MSRP $234.00Surplus $63.18 -
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Siemens BQ2B060 Miniature Circuit Breakers (MCBs)
MSRP $53.96Surplus $17.55SKU: C15-6233 Brand: Siemens MPN: BQ2B060 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6233
- TS PIK:
- 115902569
- Short Description:
- 120/240 VAC, 60 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Country of Origin:
- MEX
- Series:
- BQ
- Catalog:
- SiemensAG_00876_1_15_CAT.pdf
- Current Rating:
- 60 A
- Wire Size:
- 8 to 4 AWG (Copper), 8 to 2 AWG (Aluminum)
- Terminal Type:
- Load Lug
- Size:
- 2 Inch W x 3 Inch D x 4 Inch H
- Approval:
- UL 489, CSA C22.2
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Number of Poles:
- 2
- Mounting:
- Bolt-On
MSRP $53.96Surplus $17.55 -
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Siemens BQ2B060QLD Molded Case Breakers (MCCBs)
MSRP $234.00Surplus $63.18SKU: C15-15646 Brand: Siemens MPN: BQ2B060QLD UPC: 78364341188 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15646
- Number of Poles:
- 2
- Series:
- BQXD
- Catalog:
- SiemensAG_01698_17_1_17_8_CAT.pdf
- Terminal Type:
- Line Lug
- Current Rating:
- 60 A
- Wire Size:
- 8 to 1 AWG (Copper), 6 to 1/0 AWG (Aluminum)
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Data Sheet:
- SiemensAG_05376_1_DATA.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Size:
- 2 Inch W x 3 Inch D x 4-1/2 Inch H
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Country of Origin:
- MEX
- Approval:
- UL 489, CSA C22.2
- Mounting:
- DIN Rail
- Short Description:
- 120/240 VAC, 60 A, 10 kA, 2-Pole, Line/Load Lug Terminal, DIN Rail Mount, BQLD Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
MSRP $234.00Surplus $63.18 -
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Siemens BQ2B060QXD Molded Case Breakers (MCCBs)
MSRP $273.00Surplus $73.71SKU: C15-15647 Brand: Siemens MPN: BQ2B060QXD UPC: 78364316977 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15647
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Wire Size:
- 8 to 4 AWG (Copper), 8 to 2 AWG (Aluminum)
- Country of Origin:
- MEX
- Terminal Type:
- Quick Connect Load Lug
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Number of Poles:
- 2
- Size:
- 2 Inch W x 3 Inch D x 4-1/2 Inch H
- Catalog:
- SiemensAG_01698_17_1_17_8_CAT.pdf
- Data Sheet:
- SiemensAG_05378_1_DATA.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Mounting:
- Bolt-On
- Current Rating:
- 60 A
- Series:
- BQ
- Short Description:
- 120/240 VAC, 60 A, 10 kA, 2-Pole, Line/Quick-Connect Load Lug Terminal, DIN Rail Mount, BQXD Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Approval:
- UL 489, CSA C22.2
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip
MSRP $273.00Surplus $73.71 -
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Siemens BQ2B100 Miniature Circuit Breakers (MCBs)
MSRP $534.00Surplus $167.35SKU: C15-10363 Brand: Siemens MPN: BQ2B100 UPC: 78364310248 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10363
- TS PIK:
- 21366184
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Terminal Type:
- Load Lug
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Mounting:
- Bolt-On
- Size:
- 2 Inch W x 3 Inch D x 4 Inch H
- Wire Size:
- 4 to 1/0 AWG (Copper), 2 to 1/0 AWG (Aluminum)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Series:
- BQ
- Catalog:
- SiemensAG_01502_1_15_5_9_5_24_CAT.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 10 kA, 2-Pole, Line and Load Side Lug/Bolt-On Terminal, BQ Frame, Molded Case, Thermal and Fixed Magnetic Trip, Low Vage, Common Trip, Circuit Breaker
- Current Rating:
- 100 A
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $534.00Surplus $167.35 -
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Siemens BQ2B100H Miniature Circuit Breakers (MCBs)
MSRP $953.00Surplus $165.20SKU: C15-10364 Brand: Siemens MPN: BQ2B100H UPC: 78364316166 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10364
- TS PIK:
- 21366753
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC, 100 A, 22 kA, 2-Pole, Load Lug Terminal, BQH Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Series:
- BQH
- Interrupting Rating:
- 22 kA at 120/240 VAC Symmetrical (UL)
- Country of Origin:
- MEX
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Data Sheet:
- SiemensAG_05383_1_DATA.pdf
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Current Rating:
- 100 A
- Size:
- 2 Inch W x 3 Inch D x 4 Inch H
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Terminal Type:
- Load Lug
- Wire Size:
- 4 to 1/0 AWG (Copper), 2 to 1/0 AWG (Aluminum)
- Approval:
- UL 489, CSA C22.2
MSRP $953.00Surplus $165.20 -
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Siemens BQ2B110 Molded Case Breakers (MCCBs)
MSRP $149.10Surplus $40.26SKU: C15-15654 Brand: Siemens MPN: BQ2B110 UPC: 78364319165 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-15654
- Series:
- BQ
- Short Description:
- 120/240 VAC, 110 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Number of Poles:
- 2
- Current Rating:
- 110 A
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Wire Size:
- 2 to 1/0 AWG (Copper), 1/0 to 2/0 AWG (Aluminum)
- Country of Origin:
- MEX
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Approval:
- UL 489, CSA C22.2
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Terminal Type:
- Load Lug
- Data Sheet:
- SiemensAG_05385_1_DATA.pdf
- Size:
- 2 Inch W x 3 Inch D x 4 Inch H
- Used On:
- P1/P2/P3/P4/P5 Panelboard
MSRP $149.10Surplus $40.26
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