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 BQ3-B030 Miniature Circuit Breakers (MCBs) 3P 30A 240V
MSRP $685.93Surplus $171.48Siemens BQ3-B030 Miniature Circuit Breakers (MCBs) 3P 30A 240V​ ARCA SKU: C15-6140 Brand: Siemens MPN: BQ3-B030 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6140
MSRP $685.93Surplus $171.48 -
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Siemens BQ3-B050 Miniature Circuit Breakers (MCBs) 3P 50A 240V
MSRP $307.70Surplus $100.81Siemens BQ3-B050 Miniature Circuit Breakers (MCBs) 3P 50A 240V​ ARCA SKU: C15-6257 Brand: Siemens MPN: BQ3-B050 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6257
- Number of Poles:
- 3
MSRP $307.70Surplus $100.81 -
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Siemens BQ3-B060 Miniature Circuit Breakers (MCBs)
MSRP $200.00Surplus $149.95Siemens BQ3-B060 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8494 Brand: Siemens MPN: BQ3-B060 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-8494
MSRP $200.00Surplus $149.95 -
Siemens BQ3-B070 Miniature Circuit Breakers (MCBs) 3P 70A 240V
MSRP $839.75Surplus $173.10Siemens BQ3-B070 Miniature Circuit Breakers (MCBs) 3P 70A 240V​ ARCA SKU: C15-6145 Brand: Siemens MPN: BQ3-B070 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6145
- Country of Origin:
- Mexico
MSRP $839.75Surplus $173.10 -
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Siemens BQ3-B100 Miniature Circuit Breakers (MCBs)
MSRP $300.00Surplus $183.28SKU: C15-8466 Brand: Siemens MPN: BQ3-B100 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-8466
MSRP $300.00Surplus $183.28 -
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Siemens BQ3B015 Miniature Circuit Breakers (MCBs) 3P 15A 240V
MSRP $627.00Surplus $244.12SKU: 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 $627.00Surplus $244.12 -
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Siemens BQ3B020 Miniature Circuit Breakers (MCBs) EA
MSRP $627.00Surplus $136.99SKU: 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 $627.00Surplus $136.99 -
Siemens BQ3B025 Miniature Circuit Breakers (MCBs) 3P 25A 240V
MSRP $627.00Surplus $97.22Siemens BQ3B025 Miniature Circuit Breakers (MCBs) 3P 25A 240V​ ARCA SKU: C15-6255 Brand: Siemens MPN: BQ3B025 UPC: 78364316125 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6255
- TS PIK:
- 21367155
- Number of Poles:
- 3
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Current Rating:
- 25 A
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Terminal Type:
- Load Lug
- Data Sheet:
- SiemensAG_01610_1_DATA.pdf
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Series:
- BQ
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Catalog:
- SiemensAG_00876_5_18_5_24_CAT.pdf
- Short Description:
- 240 VAC, 25 A, 10 kA Interrupt, 3-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Country of Origin:
- Mexico
MSRP $627.00Surplus $97.22 -
Siemens BQ3B025H Miniature Circuit Breakers (MCBs) 3P 25A 240V
MSRP $933.00Surplus $161.01SKU: C15-6139 Brand: Siemens MPN: BQ3B025H UPC: 78364308838 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In. Shipping Length: 5.00 In. Shipping Width: 30.00 In...- SKU:
- C15-6139
- TS PIK:
- 21368415
- Short Description:
- BRKR BQH 3P 240V 25A 22K
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $933.00Surplus $161.01 -
Siemens BQ3B030H Miniature Circuit Breakers (MCBs) 3P 30A 240V
MSRP $933.00Surplus $149.61Siemens BQ3B030H Miniature Circuit Breakers (MCBs) 3P 30A 240V​ ARCA SKU: C15-6141 Brand: Siemens MPN: BQ3B030H UPC: 78364316169 Shipping Weight: 0.95 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6141
- TS PIK:
- 21368391
- Type:
- Molded Case, Low Vage, Common Trip, Circuit Protector
- Current Rating:
- 30 A
- Terminal Type:
- Load Lug
- Size:
- 3 Inch Width x 3 Inch Depth x 4 Inch Height
- Number of Poles:
- 3
- Catalog:
- SiemensAG_09175_0_8_17_1_17_7_17_8_17_133_CAT.pdf
- Interrupting Rating:
- 22 kA
- Data Sheet:
- SiemensAG_09561_1_2_DATA.pdf
- Voltage Rating:
- 240 VAC
- Country of Origin:
- Mexico
MSRP $933.00Surplus $149.61 -
Siemens BQ3B035 Miniature Circuit Breakers (MCBs) 3P 35A 240V
MSRP $627.00Surplus $110.56SKU: 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
MSRP $627.00Surplus $110.56 -
Siemens BQ3B040 Miniature Circuit Breakers (MCBs) BQ 3P 40A 240V EA
MSRP $295.00Surplus $34.20Siemens 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 $295.00Surplus $34.20 -
Siemens BQ3B045 Miniature Circuit Breakers (MCBs) 3P 45A 240V EA
MSRP $614.00Surplus $89.80Siemens 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
MSRP $614.00Surplus $89.80 -
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Siemens BQ3B050H Miniature Circuit Breakers (MCBs) 3P 50A 240
MSRP $914.00Surplus $295.34SKU: C15-6143 Brand: Siemens MPN: BQ3B050H UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6143
- TS PIK:
- 111063559
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05398_1_DATA.pdf
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Short Description:
- 240 VAC, 50 A, 22 kA, 3-Pole, Load Lug Terminal, BQH Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Series:
- BQH
- Terminal Type:
- Load Lug
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Current Rating:
- 50 A
- Interrupting Rating:
- 22 kA at 240 VAC Symmetrical (UL)
MSRP $914.00Surplus $295.34 -
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Siemens BQ3B080 Miniature Circuit Breakers (MCBs) 3P 80A 240V EA
MSRP $844.00Surplus $182.21Siemens 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
MSRP $844.00Surplus $182.21 -
Siemens BQ3B090 Miniature Circuit Breakers (MCBs)
MSRP $861.00Surplus $133.71Siemens BQ3B090 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8748 Brand: Siemens MPN: BQ3B090 UPC: 78364310265 Shipping Weight: 1.05 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8748
- TS PIK:
- 21366175
- Data Sheet:
- SiemensAG_05407_1_DATA.pdf
- Series:
- BQ
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Catalog:
- SiemensAG_01698_17_1_17_7_17_110_CAT.pdf
- Current Rating:
- 90 A
- Size:
- 3 Inch W x 3 Inch D x 4 Inch H
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Interrupting Rating:
- 10 kA at 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
- Terminal Type:
- Load Lug
- Short Description:
- 240 VAC, 90 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Country of Origin:
- Mexico
MSRP $861.00Surplus $133.71 -
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Siemens BQCH1B015 Molded Case Breakers (MCCBs)
MSRP $195.00Surplus $6.14SKU: C15-9428 Brand: Siemens MPN: BQCH1B015 UPC: Shipping Weight: 0.55 lbs. Shipping Height: 1.00 In. Shipping Length: 5.00 In. Shipping Width: 4.00 In. Product...- SKU:
- C15-9428
MSRP $195.00Surplus $6.14 -
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Siemens BQCH3B030 Molded Case Breakers (MCCBs)
MSRP $403.86Surplus $139.91Siemens BQCH3B030 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-6259 Brand: Siemens MPN: BQCH3B030 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6259
MSRP $403.86Surplus $139.91 -
Siemens BQCH3B040 Molded Case Breakers (MCCBs) EA
MSRP $764.00Surplus $105.11Siemens BQCH3B040 Molded Case Breakers (MCCBs) EA​ ARCA SKU: U00-3335 Brand: Siemens MPN: BQCH3B040 UPC: Shipping Weight: 1.45 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- U00-3335
- Frame Type:
- Bolt-On
- Voltage Rating:
- 480
- Current Rating:
- 14kA@480V
- Short Description:
- BQCH Series, type BQCH, 3P, 3PH, 40A, 277/480V, 14kA@480V, standard interrupting capacity, 40ºC, Bolt-On, complete with LI
MSRP $764.00Surplus $105.11 -
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Siemens BQCH3B100 Molded Case Breakers (MCCBs)
MSRP $242.00Surplus $243.81Siemens BQCH3B100 Molded Case Breakers (MCCBs)​ ARCA SKU: C15-8749 Brand: Siemens MPN: BQCH3B100 UPC: Shipping Weight: 1.50 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-8749
MSRP $242.00Surplus $243.81
Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.
