
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 BQ3B045 Miniature Circuit Breakers (MCBs) 3P 45A 240V EA
MSRP $614.00Surplus $95.36Siemens 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 $95.36 -
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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 -
Siemens BQD115 Miniature Circuit Breakers (MCBs) 15A 277V
MSRP $306.00Surplus $35.24Siemens BQD115 Miniature Circuit Breakers (MCBs) 15A 277V​ ARCA SKU: C15-6148 Brand: Siemens MPN: BQD115 UPC: 78364327708 Shipping Weight: 0.60 lbs. Shipping Height: 1.00 In...- SKU:
- C15-6148
- TS PIK:
- 21366177
- Short Description:
- 277 VAC, 15 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Panelboard Circuit Breaker
- Series:
- BQD
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Data Sheet:
- SiemensAG_01385_1_DATA.pdf
- Interrupting Rating:
- 14 kA
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip
- Voltage Rating:
- 277 VAC 50/60 Hertz, 125 VDC
- Current Rating:
- 15 A
- Number of Poles:
- 1
- Used On:
- P1 Panelboard
- Country of Origin:
- Mexico
MSRP $306.00Surplus $35.24 -
Siemens BQD140 Miniature Circuit Breakers (MCBs) 1P 40A 277V
MSRP $306.00Surplus $44.26Siemens BQD140 Miniature Circuit Breakers (MCBs) 1P 40A 277V​ ARCA SKU: C15-6087 Brand: Siemens MPN: BQD140 UPC: 78364327713 Shipping Weight: 0.60 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6087
- TS PIK:
- 115270729
- Data Sheet:
- SiemensAG_05416_1_DATA.pdf
- Series:
- BQD
- Current Rating:
- 40 A
- Short Description:
- 277 VAC, 40 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip
- Voltage Rating:
- 277 VAC 50/60 Hertz, 125 VDC
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Interrupting Rating:
- 14 kA
- Used On:
- P1 Panelboard
- Number of Poles:
- 1
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Country of Origin:
- Mexico
MSRP $306.00Surplus $44.26 -
Siemens BQD150 Miniature Circuit Breakers (MCBs) 1P 50A 277V
MSRP $306.00Surplus $54.57Siemens BQD150 Miniature Circuit Breakers (MCBs) 1P 50A 277V​ ARCA SKU: C15-6154 Brand: Siemens MPN: BQD150 UPC: 78364327715 Shipping Weight: 0.60 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6154
- TS PIK:
- 21368629
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Current Rating:
- 50 A
- Data Sheet:
- SiemensAG_05418_1_DATA.pdf
- Short Description:
- 277 VAC, 50 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Series:
- BQD
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Number of Poles:
- 1
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Country of Origin:
- Mexico
MSRP $306.00Surplus $54.57 -
Siemens BQD160 Miniature Circuit Breakers (MCBs) 1P 60A 277V
MSRP $306.00Surplus $39.98Siemens BQD160 Miniature Circuit Breakers (MCBs) 1P 60A 277V​ ARCA SKU: C15-6156 Brand: Siemens MPN: BQD160 UPC: 78364327716 Shipping Weight: 0.60 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6156
- TS PIK:
- 21368631
- Short Description:
- 277 VAC, 60 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Series:
- BQD
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Number of Poles:
- 1
- Used On:
- P1 Panelboard
- Data Sheet:
- SiemensAG_05419_1_DATA.pdf
- Current Rating:
- 60 A
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip
- Interrupting Rating:
- 14 kA
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Voltage Rating:
- 277 VAC 50/60 Hertz, 125 VDC
- Country of Origin:
- Mexico
MSRP $306.00Surplus $39.98 -
Siemens BQD215 Miniature Circuit Breakers (MCBs) 2P 15A 277V
MSRP $680.00Surplus $111.41Siemens BQD215 Miniature Circuit Breakers (MCBs) 2P 15A 277V​ ARCA SKU: C15-6088 Brand: Siemens MPN: BQD215 UPC: 78364327721 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6088
- TS PIK:
- 115270520
- Number of Poles:
- 2
- Short Description:
- 480 VAC Star/277 VAC, 125/250 VDC, 15 A, 14 kA, 2-Pole, Bolt-On Mount, Molded Case, Branch, Thermal Magnetic, Panelboard Circuit Breaker
- Type:
- Molded Case, Branch, Thermal Magnetic
- Voltage Rating:
- 480 Star/277 VAC, 125/250 VDC
- Current Rating:
- 15 A
- Used On:
- P1 Panelboard
- Data Sheet:
- SiemensAG_01614_1_DATA.pdf
- Catalog:
- SiemensAG_00876_5_18_5_20_CAT.pdf
- Interrupting Rating:
- 14 kA
- Country of Origin:
- Mexico
MSRP $680.00Surplus $111.41 -
Siemens BQD225 Miniature Circuit Breakers (MCBs) 2P 25A 277V
MSRP $680.00Surplus $113.54Siemens BQD225 Miniature Circuit Breakers (MCBs) 2P 25A 277V​ ARCA SKU: C15-6159 Brand: Siemens MPN: BQD225 UPC: 78364327723 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6159
- TS PIK:
- 21368657
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Series:
- BQD
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Short Description:
- 480 VAC Star/277 VAC, 25 A, 14 kA, 2-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz, 125/250 VDC (UL)
- Number of Poles:
- 2
- Current Rating:
- 25 A
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC/125/250 VDC (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05425_1_DATA.pdf
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Country of Origin:
- Mexico
MSRP $680.00Surplus $113.54 -
Siemens BQD230 Miniature Circuit Breakers (MCBs) 2P 30A
MSRP $680.00Surplus $111.74Siemens BQD230 Miniature Circuit Breakers (MCBs) 2P 30A​ ARCA SKU: C15-4917 Brand: Siemens MPN: BQD230 UPC: 78364327724 Shipping Weight: 1.25 lbs. Shipping Height: 6.00 In. Shipping...- SKU:
- C15-4917
- Series:
- BQD
- Type:
- Molded Case
- Type:
- Thermal and Fixed Magnetic Trip
- Approval:
- UL 489
- Approval:
- CSA-C22.2
- Volts:
- 277/480 VAC 50/60 Hertz
- Volts:
- 125/250 VDC
- Amps:
- 32 A
- Used On:
- P1 Panelboard
- Poles:
- 2
- Interrupting Rating:
- 14 kA
- Application:
- Construction
- Construction:
- Used On
- Short Description:
- 480 VAC Star/277 VAC, 125/250 VDC, 30 A, 14 kA, 2-Pole, Bolt-On Mount, Molded Case, Branch, Thermal Magnetic
- Catalog:
- SiemensAG_00876_5_18_5_20_CAT.pdf
- Data Sheet:
- SiemensAG_01615_1_DATA.pdf
- TS PIK:
- 128313933
- Number of Poles:
- 2
- Current Rating:
- 30 A
- Voltage Rating:
- 277/480 VAC 50/60 Hertz, 125/250 VDC
- Country of Origin:
- Mexico
MSRP $680.00Surplus $111.74 -
Siemens BQD240 Miniature Circuit Breakers (MCBs)
MSRP $653.00Surplus $113.05SKU: C15-6160 Brand: Siemens MPN: BQD240 UPC: 78364327726 Shipping Weight: 1.15 lbs. Shipping Height: 4.49 In. Shipping Length: 4.00 In. Shipping Width: 2.00 In...- SKU:
- C15-6160
- TS PIK:
- 21368644
- Interrupting Rating:
- 14 kA
- Type:
- Molded Case, Branch, Thermal Magnetic
- Current Rating:
- 40 A
- Short Description:
- 480 VAC Star/277 VAC, 40 A, 14 kA, 2-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Used On:
- P1 Panelboard
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Number of Poles:
- 2
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Voltage Rating:
- 480 Star/277 VAC, 125/250 VDC
- Data Sheet:
- SiemensAG_05427_1_DATA.pdf
- Country of Origin:
- Mexico
MSRP $653.00Surplus $113.05 -
Siemens BQD270 Miniature Circuit Breakers (MCBs)
MSRP $1,368.00Surplus $84.31SKU: C15-7404 Brand: Siemens MPN: BQD270 UPC: 78364327730 Shipping Weight: 1.10 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-7404
- TS PIK:
- 115495143
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC/125/250 VDC (UL)
- Number of Poles:
- 2
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05431_1_DATA.pdf
- Current Rating:
- 70 A
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Short Description:
- 480 VAC Star/277 VAC, 70 A, 14 kA, 2-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Series:
- BQD
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz, 125/250 VDC (UL)
- Country of Origin:
- Mexico
MSRP $1,368.00Surplus $84.31 -
Siemens BQD290 Miniature Circuit Breakers (MCBs)
MSRP $1,368.00Surplus $116.87SKU: C15-8746 Brand: Siemens MPN: BQD290 UPC: 78364327732 Shipping Weight: 1.15 lbs. Shipping Height: 4.49 In. Shipping Length: 4.00 In. Shipping Width: 2.00 In...- SKU:
- C15-8746
- TS PIK:
- 21367352
- Number of Poles:
- 2
- Current Rating:
- 90 A
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz, 125/250 VDC (UL)
- Short Description:
- 480 VAC Star/277 VAC, 90 A, 14 kA, 2-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Data Sheet:
- SiemensAG_05433_1_DATA.pdf
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC/125/250 VDC (UL)
- Series:
- BQD
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Country of Origin:
- Mexico
MSRP $1,368.00Surplus $116.87 -
Siemens BQD315 Miniature Circuit Breakers (MCBs)
MSRP $1,202.00Surplus $267.32Siemens BQD315 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-7508 Brand: Siemens MPN: BQD315 UPC: 78364327734 Shipping Weight: 1.80 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-7508
- TS PIK:
- 126673471
- Used On:
- P1 Panelboard
- Number of Poles:
- 3
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip
- Current Rating:
- 15 A
- Interrupting Rating:
- 14 kA
- Short Description:
- 480 VAC Star/277 VAC, 15 A, 14 kA, 3-Pole, BQD-Frame, Thermal Magnetic, Molded Case Circuit Breaker
- Voltage Rating:
- 277/480 VAC 50/60 Hertz
- Series:
- BQD
- Catalog:
- SiemensAG_00876_5_18_5_20_CAT.pdf
- Data Sheet:
- SiemensAG_01617_1_DATA.pdf
- Country of Origin:
- Mexico
MSRP $1,202.00Surplus $267.32 -
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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
MSRP $1,155.00Surplus $291.27
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