
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 BQ1B070 Miniature Circuit Breakers (MCBs) 70A 120V
MSRP $85.50Surplus $31.75Siemens BQ1B070 Miniature Circuit Breakers (MCBs) 70A 120V​ ARCA SKU: C15-6131 Brand: Siemens MPN: BQ1B070 UPC: 78364316118 Shipping Weight: 0.35 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6131
- TS PIK:
- 124234486
- Catalog:
- SiemensAG_57191_7_4_7_5_7_8_7_38_7_39_7_156_CAT.pdf
- Short Description:
- 120/240 VAC, 70 A, 10 kA Interrupt, 1-Pole, BQ Frame, Load Lug Terminal, Low Vage, Circuit Protector, Molded Case, Non-Interchangeable Trip Circuit Breaker
- Number of Poles:
- 1
- Type:
- Molded Case, Low Vage, Circuit Protector
- Size:
- 1 Inch Width x 3 Inch Depth x 4 Inch Height
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 70 A
- Country of Origin:
- Mexico
MSRP $85.50Surplus $31.75 -
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Siemens BQ2-B020 Miniature Circuit Breakers (MCBs) 2P 20A 120/240V
MSRP $209.94Surplus $52.48Siemens BQ2-B020 Miniature Circuit Breakers (MCBs) 2P 20A 120/240V​ ARCA SKU: E30-8835 Brand: Siemens MPN: BQ2-B020 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- E30-8835
MSRP $209.94Surplus $52.48 -
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Siemens BQ2-B040 Miniature Circuit Breakers (MCBs) 2P 40A 120/240V
MSRP $209.94Surplus $54.35Siemens BQ2-B040 Miniature Circuit Breakers (MCBs) 2P 40A 120/240V​ ARCA SKU: E30-8836 Brand: Siemens MPN: BQ2-B040 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- E30-8836
MSRP $209.94Surplus $54.35 -
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Siemens BQ2-B070 Miniature Circuit Breakers (MCBs) 2P 70A 120/240V
MSRP $403.85Surplus $99.84Siemens BQ2-B070 Miniature Circuit Breakers (MCBs) 2P 70A 120/240V​ ARCA SKU: E30-8848 Brand: Siemens MPN: BQ2-B070 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- E30-8848
MSRP $403.85Surplus $99.84 -
Siemens BQ2B015 Miniature Circuit Breakers (MCBs) 2P 15A 120V
MSRP $192.50Surplus $30.49Siemens BQ2B015 Miniature Circuit Breakers (MCBs) 2P 15A 120V​ ARCA SKU: C15-6251 Brand: Siemens MPN: BQ2B015 UPC: 78364310240 Shipping Weight: 0.65 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6251
- TS PIK:
- 119226719
- Short Description:
- 120/240 VAC, 15 A, 2-Pole, Thermal Magnetic, Common Trip, Panelboard Molded Case Circuit Breaker
- Terminal Type:
- Load Side Lug, Bolt-On
- Current Rating:
- 15 A
- Number of Poles:
- 2
- Data Sheet:
- SiemensAG_01609_1_DATA.pdf
- Catalog:
- SiemensAG_00876_1_15_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Size:
- 2 Inch Width x 2.37 Inch Depth x 3.75 Inch Height
- Series:
- BQ
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Low Vage, Common Trip
- Country of Origin:
- Mexico
MSRP $192.50Surplus $30.49 -
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Siemens BQ2B015H Miniature Circuit Breakers (MCBs)
MSRP $363.00Surplus $48.06Siemens BQ2B015H Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6132 Brand: Siemens MPN: BQ2B015H UPC: 78364316157 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6132
- TS PIK:
- 21366745
- Short Description:
- BRKR BQH 2P 120/240V 15A 22K
- Country of Origin:
- Mexico
MSRP $363.00Surplus $48.06 -
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Siemens BQ2B020H Miniature Circuit Breakers (MCBs)
MSRP $394.00Surplus $74.20SKU: C15-11429 Brand: Siemens MPN: BQ2B020H UPC: 78364316158 Shipping Weight: 0.62 lbs. Shipping Height: 3.75 In. Shipping Length: 2.37 In. Shipping Width: 2.00 In...- SKU:
- C15-11429
- Wire Size:
- 14 to 10 AWG (Copper), 12 to 10 AWG (Aluminum)
- Short Description:
- 120/240 VAC, 20 A, 22 kA, 2-Pole, Load Lug Terminal, BQH Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Series:
- BQH
- Terminal Type:
- Load Lug
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Number of Poles:
- 2
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Data Sheet:
- SiemensAG_05362_1_DATA.pdf
- Interrupting Rating:
- 22 kA at 120/240 VAC Symmetrical (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Current Rating:
- 20 A
- Country of Origin:
- Mexico
MSRP $394.00Surplus $74.20 -
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Siemens BQ2B025 Miniature Circuit Breakers (MCBs)
MSRP $188.50Surplus $45.01Siemens BQ2B025 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6252 Brand: Siemens MPN: BQ2B025 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6252
- TS PIK:
- 126617518
- Short Description:
- 120/240 VAC, 25 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Data Sheet:
- SiemensAG_05365_1_DATA.pdf
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Number of Poles:
- 2
- Current Rating:
- 25 A
- Terminal Type:
- Load Lug
- Series:
- BQ
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
MSRP $188.50Surplus $45.01 -
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Siemens BQ2B035 Miniature Circuit Breakers (MCBs)
MSRP $188.50Surplus $49.96Siemens BQ2B035 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6253 Brand: Siemens MPN: BQ2B035 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6253
- TS PIK:
- 21366647
- Short Description:
- 120/240 VAC, 35 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Data Sheet:
- SiemensAG_05369_1_DATA.pdf
- Number of Poles:
- 2
- Mounting:
- Bolt-On
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Current Rating:
- 35 A
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Series:
- BQ
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
MSRP $188.50Surplus $49.96 -
Siemens BQ2B040 Miniature Circuit Breakers (MCBs) 2P 40A 120V
MSRP $192.50Surplus $36.41Siemens BQ2B040 Miniature Circuit Breakers (MCBs) 2P 40A 120V​ ARCA SKU: C15-2270 Brand: Siemens MPN: BQ2B040 UPC: 78364310243 Shipping Weight: 1.75 lbs. Shipping Height: 3.00 In...- SKU:
- C15-2270
- TS PIK:
- 21366179
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Mounting:
- Bolt-On
- Series:
- BQ
- Terminal Type:
- Load Lug
- Short Description:
- 120/240 VAC, 40 A, 10 kA Interrupt, 2-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Current Rating:
- 40 A
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Catalog:
- SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- 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
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $192.50Surplus $36.41 -
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Siemens BQ2B040L Miniature Circuit Breakers (MCBs) B 2P 40A 120/240V 50/60Hz 1Ph
MSRP $183.00Surplus $75.96SKU: C15-4916 Brand: Siemens MPN: BQ2B040L UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-4916
MSRP $183.00Surplus $75.96 -
Siemens BQ2B045 Miniature Circuit Breakers (MCBs) 2P 45A 120V
MSRP $192.50Surplus $32.14Siemens 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
MSRP $192.50Surplus $32.14 -
Siemens BQ2B050 Miniature Circuit Breakers (MCBs)
MSRP $188.50Surplus $34.58Siemens 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
MSRP $188.50Surplus $34.58 -
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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
MSRP $53.96Surplus $17.55 -
Siemens BQ2B070 Miniature Circuit Breakers (MCBs) 2P 70A 120V
MSRP $371.00Surplus $57.19Siemens BQ2B070 Miniature Circuit Breakers (MCBs) 2P 70A 120V​ ARCA SKU: C15-2269 Brand: Siemens MPN: BQ2B070 UPC: 78364310246 Shipping Weight: 0.63 lbs. Shipping Height: 2.00 In...- SKU:
- C15-2269
- Series:
- BQ
- Type:
- Molded Case
- Type:
- Thermal and Fixed Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Size:
- 2 Inch W x 3 Inch D x 4 Inch H
- Volts:
- 120/240 VAC at 50/60 Hz (UL)
- Amps:
- 32 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Poles:
- 2
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 4 AWG (Copper)
- Wire Size:
- 8 to 2 AWG (Aluminum)
- Short Description:
- 120/240 VAC, 70 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Data Sheet:
- SiemensAG_05380_1_DATA.pdf
- TS PIK:
- 21366182
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 70 A
- Number of Poles:
- 2
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
MSRP $371.00Surplus $57.19 -
Siemens BQ2B080 Miniature Circuit Breakers (MCBs)
MSRP $503.00Surplus $71.81Siemens BQ2B080 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8750 Brand: Siemens MPN: BQ2B080 UPC: 78364316123 Shipping Weight: 0.65 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-8750
- TS PIK:
- 115270502
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Data Sheet:
- SiemensAG_05381_1_DATA.pdf
- Series:
- BQ
- Short Description:
- 120/240 VAC, 80 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Size:
- 2 Inch W x 3 Inch D x 4 Inch H
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Current Rating:
- 80 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Wire Size:
- 4 to 1/0 AWG (Copper), 2 to 1/0 AWG (Aluminum)
- Country of Origin:
- Mexico
MSRP $503.00Surplus $71.81 -
Siemens BQ2B090 Miniature Circuit Breakers (MCBs) 2P 90A 120V
MSRP $503.00Surplus $63.38Siemens BQ2B090 Miniature Circuit Breakers (MCBs) 2P 90A 120V​ ARCA SKU: C15-6134 Brand: Siemens MPN: BQ2B090 UPC: 78364310247 Shipping Weight: 0.65 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6134
- TS PIK:
- 119226720
- Series:
- BQ
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Terminal Type:
- Load Lug
- Current Rating:
- 90 A
- Short Description:
- 120/240 VAC, 90 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Size:
- 2 Inch W x 3 Inch D x 4 Inch H
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
- Wire Size:
- 4 to 1/0 AWG (Copper), 2 to 1/0 AWG (Aluminum)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05382_1_DATA.pdf
- Country of Origin:
- Mexico
MSRP $503.00Surplus $63.38 -
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Siemens BQ2B100 Miniature Circuit Breakers (MCBs) EA
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
MSRP $534.00Surplus $167.35 -
Siemens BQ2B125 Miniature Circuit Breakers (MCBs)
MSRP $1,053.00Surplus $136.72SKU: C15-8751 Brand: Siemens MPN: BQ2B125 UPC: 78364316124 Shipping Weight: 0.70 lbs. Shipping Height: 2.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-8751
- TS PIK:
- 115495142
- Data Sheet:
- SiemensAG_05386_1_DATA.pdf
- Voltage Rating:
- 120/240 VAC
- Size:
- 3 Inch W x 4 Inch D x 2 Inch H
- Current Rating:
- 125 A
- Number of Poles:
- 2
- Mounting:
- Bolt-On
- Terminal Type:
- Load Lug
- Type:
- Molded Case
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Short Description:
- 120/240 VAC, 125 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Country of Origin:
- Mexico
MSRP $1,053.00Surplus $136.72 -
Siemens BQ2S060 Molded Case Breakers (MCCBs) 2P 60A 120V
MSRP $192.50Surplus $39.17Siemens BQ2S060 Molded Case Breakers (MCCBs) 2P 60A 120V​ ARCA SKU: C15-6135 Brand: Siemens MPN: BQ2S060 UPC: 78364316122 Shipping Weight: 0.65 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6135
- TS PIK:
- 118287780
- Short Description:
- CIRCUIT BREAKER 60A 2P BQ MOLDED CASE
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $192.50Surplus $39.17
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