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 B350 Miniature Circuit Breakers (MCBs)
MSRP $622.00Surplus $81.20SKU: C15-6230 Brand: Siemens MPN: B350 UPC: 78364326375 Shipping Weight: 0.95 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-6230
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Short Description:
- 240 VAC, 50 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Type:
- Molded Case, Thermal and Fixed Magnetic, Branch, Common Trip
- Current Rating:
- 50 A
- Voltage Rating:
- 240 VAC
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Data Sheet:
- SiemensAG_05264_1_DATA.pdf
- Interrupting Rating:
- 10 kA at 240 VAC (UL)
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Number of Poles:
- 3
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
- Installation:
- Bolt-On
- Application:
- Lighting, Distribution
MSRP $622.00Surplus $81.20 -
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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 -
Siemens B350H Miniature Circuit Breakers (MCBs) 3P 50A
MSRP $944.00Surplus $141.71Siemens B350H Miniature Circuit Breakers (MCBs) 3P 50A​ ARCA SKU: C15-6205 Brand: Siemens MPN: B350H UPC: 78364326402 Shipping Weight: 0.95 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6205
- TS PIK:
- 115555115
- Short Description:
- 240 VAC, 50 A, 22 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Interrupting Rating:
- 22 kA at 240 VAC
- Current Rating:
- 50 A
- Type:
- Molded Case
- Voltage Rating:
- 240 VAC
- Series:
- BLH
- Number of Poles:
- 3
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Data Sheet:
- SiemensAG_05266_1_DATA.pdf
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Mounting:
- Bolt-On
- Country of Origin:
- Mexico
- Approval:
- UL 489, CSA C22.2
MSRP $944.00Surplus $141.71 -
Siemens BE250 Miniature Circuit Breakers (MCBs)
MSRP $300.00Surplus $199.50SKU: C15-10346 Brand: Siemens MPN: BE250 UPC: 78364327414 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10346
- TS PIK:
- 115554696
- Catalog:
- SiemensAG_01796_7_30_CAT.pdf
- Approval:
- UL 489
- Voltage Rating:
- 120/240 VAC
- Mounting:
- Bolt-On
- Country of Origin:
- PHL
- Size:
- 2 Inch Width
- Installation/Operator:
- SiemensAG_00695_INST.pdf
- Trip Sensitivity:
- 30 MilliA
- Current Rating:
- 50 A
- Data Sheet:
- SiemensAG_10270_1_2_DATA.pdf
- Interrupting Rating:
- 10 kA
- Type:
- Molded Case, Low Vage, Circuit Protector, Thermal Magnetic
- Short Description:
- BRKR BLE GFCI 30MA 2P 240V 50A 10kA
- Number of Poles:
- 2
- Used On:
- Panelboard
MSRP $300.00Surplus $199.50 -
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Siemens BF250 Miniature Circuit Breakers (MCBs) 2P
MSRP $545.00Surplus $151.03Siemens BF250 Miniature Circuit Breakers (MCBs) 2P​ ARCA SKU: C15-6249 Brand: Siemens MPN: BF250 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6249
- Mounting:
- Bolt-On
- Used On:
- Loadcenter, P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_01608_1_DATA.pdf
- Interrupting Rating:
- 10 kA
- Size:
- 2 Inch W
- Number of Poles:
- 2
- Current Rating:
- 50 A
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 2-Pole, Thermal Magnetic, Circuit Interrupter, Ground Fault Circuit Breaker
- Terminal Type:
- Load Lug
- Voltage Rating:
- 120/240 VAC
- Type:
- Circuit Interrupter
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
MSRP $545.00Surplus $151.03 -
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Siemens BF250A Miniature Circuit Breakers (MCBs)
MSRP $370.00Surplus $319.20SKU: C15-10356 Brand: Siemens MPN: BF250A UPC: 88762121545 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10356
- TS PIK:
- 126513855
- Number of Poles:
- 2
- Current Rating:
- 50 A
- Country of Origin:
- PHL
- Terminal Type:
- Load Lug
- Short Description:
- 120/240 VAC, 50 A, 10 kA Interrupt, 5 mA Trip Level, 2-Pole, Circuit Protector, Low Vage, Type BLFB, Molded Case Ground Fault Circuit Breaker
- Type:
- Molded Case, Low Vage, Thermal Magnetic
- Interrupting Rating:
- 10 kA
- Used On:
- Load Center, Panelboard
- Approval:
- UL 943, CSA
- Size:
- 2 Inch Width
- Mounting:
- Bolt-On
- Data Sheet:
- SiemensAG_10287_1_DATA.pdf
- Voltage Rating:
- 120/240 V AC
- Trip Sensitivity:
- 5 MilliA
- Installation/Operator:
- SiemensAG_00697_INST.pdf
- Catalog:
- SiemensAG_23946_10_17_CAT.pdf
MSRP $370.00Surplus $319.20 -
Siemens BQ2B050 Miniature Circuit Breakers (MCBs)
MSRP $188.50Surplus $33.60Siemens 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
- Approval:
- UL 489, CSA C22.2
MSRP $188.50Surplus $33.60
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