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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Siemens BQ3B015 Miniature Circuit Breakers (MCBs) 3P 15A 240V
MSRP $853.54Surplus $224.51SKU: C15-6138 Brand: Siemens MPN: BQ3B015 UPC: 78364310258 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-6138
- TS PIK:
- 126961886
- Short Description:
- 240 VAC, 15 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Low Vage, Common Trip
- Voltage Rating:
- 240 V AC 50/60 Hertz
- Number of Poles:
- 3
- Current Rating:
- 15 A
- Size:
- 3 Inch Width x 2.37 Inch Depth x 3.75 Inch Height
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_01698_17_1_17_7_17_110_CAT.pdf
- Data Sheet:
- SiemensAG_05387_1_DATA.pdf
- Series:
- BQ
- Terminal Type:
- Load Side Lug, Bolt-On
MSRP $853.54Surplus $224.51 -
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Siemens BQ3B020 Miniature Circuit Breakers (MCBs) EA
MSRP $853.54Surplus $224.51SKU: C15-8429 Brand: Siemens MPN: BQ3B020 UPC: 78364310259 Shipping Weight: 0.95 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 4.00 In...- SKU:
- C15-8429
- Terminal Type:
- Load Lug
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Short Description:
- 240 VAC, 20 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Series:
- BQ
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Catalog:
- SiemensAG_01698_17_1_17_7_17_110_CAT.pdf
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Data Sheet:
- SiemensAG_05388_1_DATA.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Wire Size:
- 14 to 10 AWG (Copper), 12 to 10 AWG (Aluminum)
- Current Rating:
- 20 A
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
MSRP $853.54Surplus $224.51 -
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Siemens BQ3B03000S01 Molded Case Breakers (MCCBs)
MSRP $1,644.45Surplus $444.00SKU: C15-15665 Brand: Siemens MPN: BQ3B03000S01 UPC: 78364323783 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-15665
- Short Description:
- 240 VAC, 30 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, 120 VAC Shunt Trip, Molded Case Circuit Breaker
- Current Rating:
- 30 A
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Series:
- BQ
- Country of Origin:
- MEX
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05391_1_DATA.pdf
- Approval:
- UL
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Terminal Type:
- Load Lug
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Number of Poles:
- 3
MSRP $1,644.45Surplus $444.00 -
Siemens BQ3B035 Miniature Circuit Breakers (MCBs) 3P 35A 240V
MSRP $853.54Surplus $248.87SKU: C15-6234 Brand: Siemens MPN: BQ3B035 UPC: 78364316126 Shipping Weight: 1.05 lbs. Shipping Height: 3.00 In. Shipping Length: 5.00 In. Shipping Width: 3.00 In...- SKU:
- C15-6234
- TS PIK:
- 117094914
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Terminal Type:
- Load Lug
- Series:
- BQ
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Short Description:
- 240 VAC, 35 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Number of Poles:
- 3
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Data Sheet:
- SiemensAG_05393_1_DATA.pdf
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Current Rating:
- 35 A
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $853.54Surplus $248.87 -
Siemens BQ3B040 Miniature Circuit Breakers (MCBs) BQ 3P 40A 240V EA
MSRP $401.58Surplus $33.30Siemens BQ3B040 Miniature Circuit Breakers (MCBs) BQ 3P 40A 240V EA​ ARCA SKU: C15-2268 Brand: Siemens MPN: BQ3B040 UPC: 783643102613 Shipping Weight: 1.05 lbs. Shipping Height: 3.00...- SKU:
- C15-2268
- Series:
- BQ
- Type:
- Molded Case
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Size:
- 4.7 Inch Width x 12.7 Inch Depth x 3.7 Inch Height
- Volts:
- 240 VAC
- Amps:
- 32 A
- Poles:
- 3
- Mounting:
- Bolt-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Lug-In/Lug-Out with Insta-Wire
- Short Description:
- 240 VAC, 50 A, 10 kA Interrupt, 3-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip
- Catalog:
- SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
- Data Sheet:
- SiemensAG_01611_1_DATA.pdf
- TS PIK:
- 21366197
- Current Rating:
- 40 A
- Voltage Rating:
- 240 VAC
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $401.58Surplus $33.30 -
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Siemens BQ3B04000S01 Molded Case Breakers (MCCBs)
MSRP $743.58Surplus $200.76SKU: C15-15667 Brand: Siemens MPN: BQ3B04000S01 UPC: 78364323784 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-15667
- Series:
- BQ
- Short Description:
- 240 VAC, 40 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, 120 VAC Shunt Trip, Molded Case Circuit Breaker
- Number of Poles:
- 3
- Current Rating:
- 40 A
- Country of Origin:
- MEX
- Data Sheet:
- SiemensAG_05394_1_DATA.pdf
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Approval:
- UL
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Terminal Type:
- Load Lug
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
MSRP $743.58Surplus $200.76 -
Siemens BQ3B045 Miniature Circuit Breakers (MCBs) 3P 45A 240V EA
MSRP $835.84Surplus $84.97Siemens BQ3B045 Miniature Circuit Breakers (MCBs) 3P 45A 240V EA​ ARCA SKU: C15-6256 Brand: Siemens MPN: BQ3B045 UPC: Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6256
- TS PIK:
- 124364579
- Short Description:
- 240 VAC, 45 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Series:
- BQ
- Terminal Type:
- Load Lug
- Number of Poles:
- 3
- Current Rating:
- 45 A
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Data Sheet:
- SiemensAG_05396_1_DATA.pdf
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $835.84Surplus $84.97 -
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Siemens BQ3B06000S01 Molded Case Breakers (MCCBs)
MSRP $1,644.45Surplus $444.00SKU: C15-15669 Brand: Siemens MPN: BQ3B06000S01 UPC: 78364323787 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-15669
- Short Description:
- 240 VAC, 60 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, 120 VAC Shunt Trip, Molded Case Circuit Breaker
- Country of Origin:
- MEX
- Current Rating:
- 60 A
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Terminal Type:
- Load Lug
- Data Sheet:
- SiemensAG_05401_1_DATA.pdf
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Size:
- 3 Inch W x 3 Inch D x 4 Inch H
- Approval:
- UL
- Number of Poles:
- 3
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Wire Size:
- 8 to 4 AWG (Copper), 8 to 2 AWG (Aluminum)
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Series:
- BQ
MSRP $1,644.45Surplus $444.00 -
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Siemens BQ3B07000S01 Molded Case Breakers (MCCBs)
MSRP $1,863.62Surplus $503.18SKU: C15-15670 Brand: Siemens MPN: BQ3B07000S01 UPC: 78364323788 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-15670
- Series:
- BQ
- Short Description:
- 240 VAC, 70 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, 120 VAC Shunt Trip, Molded Case Circuit Breaker
- Terminal Type:
- Load Lug
- Size:
- 3 Inch W x 3 Inch D x 4 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Data Sheet:
- SiemensAG_05404_1_DATA.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Approval:
- UL
- Wire Size:
- 8 to 4 AWG (Copper), 8 to 2 AWG (Aluminum)
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Current Rating:
- 70 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Country of Origin:
- MEX
MSRP $1,863.62Surplus $503.18 -
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Siemens BQ3B080 Miniature Circuit Breakers (MCBs) 3P 80A 240V EA
MSRP $1,148.94Surplus $307.79Siemens BQ3B080 Miniature Circuit Breakers (MCBs) 3P 80A 240V EA​ ARCA SKU: C15-6258 Brand: Siemens MPN: BQ3B080 UPC: 78364316128 Shipping Weight: 1.05 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6258
- TS PIK:
- 121078654
- Short Description:
- 240 VAC, 80 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Series:
- BQ
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Current Rating:
- 80 A
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Size:
- 3 Inch W x 3 Inch D x 4 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Wire Size:
- 4 to 1/0 AWG (Copper), 2 to 1/0 AWG (Aluminum)
- Data Sheet:
- SiemensAG_05406_1_DATA.pdf
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Terminal Type:
- Load Lug
- Country of Origin:
- MEX
- Approval:
- UL
MSRP $1,148.94Surplus $307.79 -
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Siemens BQ3B10000S01 Molded Case Breakers (MCCBs)
MSRP $2,036.50Surplus $419.48SKU: U00-7904 Brand: Siemens MPN: BQ3B10000S01 UPC: 78364300085 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-7904
- Size:
- 3 Inch W x 2-3/8 Inch D x 4 Inch H
- Terminal Type:
- Load Lug
- Approval:
- UL
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05409_1_DATA.pdf
- Short Description:
- 240 VAC, 100 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, 120 VAC Shunt Trip, Molded Case Circuit Breaker
- Series:
- BQ
- Current Rating:
- 100 A
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Wire Size:
- 4 to 1/0 AWG (Copper), 2 to 1/0 AWG (Aluminum)
- Country of Origin:
- MEX
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
MSRP $2,036.50Surplus $419.48
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