
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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Contact Us For Quote
Siemens BQ3B050 Miniature Circuit Breakers (MCBs) EA
MSRP $614.00Surplus $164.92Siemens BQ3B050 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-6144 Brand: Siemens MPN: BQ3B050 UPC: 78364310262 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6144
- TS PIK:
- 21366198
- Mounting:
- Bolt-On
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Short Description:
- 240 VAC, 50 A, 10 kA Interrupt, 3-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Current Rating:
- 50 A
- Series:
- BQ
- Number of Poles:
- 3
- Type:
- Molded Case, Thermal and Fixed Magnetic Trip, Common Trip
- Catalog:
- SiemensAG_00876_1_5_5_18_5_24_CAT.pdf
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $614.00Surplus $164.92 -
Contact Us For Quote
Siemens BQ3B05000S01 Miniature Circuit Breakers (MCBs) 120V
MSRP $1,008.00Surplus $372.40SKU: C15-6142 Brand: Siemens MPN: BQ3B05000S01 UPC: 78364323786 Shipping Weight: 1.40 lbs. Shipping Height: 3.00 In. Shipping Length: 6.00 In. Shipping Width: 5.00 In...- SKU:
- C15-6142
- TS PIK:
- 115732140
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Current Rating:
- 50 A
- Number of Poles:
- 3
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Series:
- BQ
- Short Description:
- 240 VAC, 50 A, 10 kA, 3-Pole, Load Lug Terminal, BQ Frame, Bolt-On, 120 VAC Shunt Trip, Molded Case Circuit Breaker
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Terminal Type:
- Load Lug
- Catalog:
- SiemensAG_01698_17_1_17_7_17_110_CAT.pdf
- Data Sheet:
- SiemensAG_05397_1_DATA.pdf
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Country of Origin:
- MEX
- Approval:
- UL
MSRP $1,008.00Surplus $372.40 -
Siemens B350H00S01 Miniature Circuit Breakers (MCBs)
MSRP $1,422.00Surplus $466.47SKU: C15-10333 Brand: Siemens MPN: B350H00S01 UPC: 78364326897 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10333
- TS PIK:
- 115555074
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Current Rating:
- 50 A
- Short Description:
- 240 VAC, 50 A, 22 kA, 3-Pole, Bolt-On Mount, Molded Case, Shunt Trip, Thermal Magnetic Trip Unit, Panelboard Circuit Breaker
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Data Sheet:
- SiemensAG_05267_1_DATA.pdf
- Number of Poles:
- 3
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Interrupting Rating:
- 22 kA at 240 VAC (UL)
- Country of Origin:
- Mexico
- Application:
- Lighting, Distribution
- Approval:
- UL 489, CSA C22.2
- Installation:
- Bolt-On
MSRP $1,422.00Surplus $466.47 -
Siemens B350HH Miniature Circuit Breakers (MCBs) B 3P 50A 120/240V 50/60Hz 3Ph EA
MSRP $465.00Surplus $250.04SKU: C15-4873 Brand: Siemens MPN: B350HH UPC: 78364326424 Shipping Weight: 0.90 lbs. Shipping Height: 3.00 In. Shipping Length: 5.00 In. Shipping Width: 3.00 In...- SKU:
- C15-4873
- Type:
- Molded Case
- Type:
- Thermal and Fixed Magnetic
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 240 VAC at 50/60 Hz (UL)
- Amps:
- 32 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 VAC (UL)
- Application:
- Lighting
- Application:
- Distribution
- Installation:
- Bolt-On
- Short Description:
- 240 VAC, 50 A, 65 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Data Sheet:
- SiemensAG_05268_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Country of Origin:
- Mexico
- Current Rating:
- 50 A
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Number of Poles:
- 3
MSRP $465.00Surplus $250.04 -
Contact Us For Quote
Siemens BQ3B050H Miniature Circuit Breakers (MCBs)
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)
- Country of Origin:
- MEX
- Approval:
- UL
MSRP $914.00Surplus $295.34
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