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
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Murray MP245 Miniature Circuit Breakers (MCBs)
MSRP $197.25Surplus $71.01Murray MP245 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6329 Brand: Murray MPN: MP245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0...- SKU:
- C15-6329
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Current Rating:
- 45 A
- Type:
- Common Trip
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Plug-On Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Series:
- MP-T
- Terminal Type:
- Load Lug
- Used On:
- Loadcenter
- Data Sheet:
- SiemensAG_06627_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Voltage Rating:
- 120/240 VAC
MSRP $197.25Surplus $71.01 -
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Siemens B145 Miniature Circuit Breakers (MCBs)
MSRP $87.12Surplus $14.12SKU: C15-18957 Brand: Siemens MPN: B145 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-18957
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Series:
- BL
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 1
- Interrupting Rating:
- 10000 A
- Current Rating:
- 45 A
- Short Description:
- 120 VAC, 45 A, 10 kA, 1-Pole, Bolt-On Mount, Molded Case, Branch, Panelboard Circuit Breaker
- Data Sheet:
- SiemensAG_05175_1_DATA.pdf
- Approval:
- UL 489, CSA C22.2
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Country of Origin:
- MEX
MSRP $87.12Surplus $14.12 -
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Siemens B245 Miniature Circuit Breakers (MCBs)
MSRP $60.03Surplus $0.00SKU: C15-18965 Brand: Siemens MPN: B245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-18965
- Application:
- Electrical Distribution
- Interrupting Rating:
- 10 kA
- Used On:
- P1 Panelboard
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 2-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Approval:
- UL 489, CSA C22.2
- Current Rating:
- 45 A
- Installation:
- Bolt-On
- Country of Origin:
- MEX
- Number of Poles:
- 2
- Type:
- Molded Case, Branch, Common Trip, Thermal Magnetic
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Data Sheet:
- SiemensAG_05210_1_DATA.pdf
MSRP $60.03Surplus $0.00 -
Siemens B245HH Miniature Circuit Breakers (MCBs) Type BL 2P 45A 120V 50/60Hz
MSRP $784.11Surplus $259.19SKU: C15-1461 Brand: Siemens MPN: B245HH UPC: 783643512887 Shipping Weight: 0.72 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-1461
- Application:
- Lighting
- Application:
- Distribution
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Amps:
- 45 A
- Installation:
- Bolt-On
- Interrupting Rating:
- 65 kA at 120/240 VAC
- Poles:
- 2
- Type:
- Molded Case
- Used On:
- Panelboard
- Volts:
- 120/240 VAC
- Data Sheet:
- SiemensAG_09773_1_2_DATA.pdf
- Installation/Operator:
- SiemensAG_00053_INST.pdf
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Catalog:
- SiemensAG_01829_5_21_10_16_CAT.pdf
- Current Rating:
- 45 A
- Short Description:
- BREAKER 45A 2P 120/240V 65K HBL
- Country of Origin:
- Mexico
MSRP $784.11Surplus $259.19 -
Siemens Q245 Miniature Circuit Breakers (MCBs)
MSRP $124.56Surplus $36.29SKU: C15-6274 Brand: Siemens MPN: Q245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6274
- TS PIK:
- 121449811
- Number of Poles:
- 2
- Current Rating:
- 45 A
- Used On:
- Load Center
- Mounting:
- Plug-On
- Series:
- Q
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Short Description:
- 120/240 VAC, 45 A, 10 kA Interrupt Rating, 2-Pole, Plug-On, Type QP, Circuit Breaker
- Data Sheet:
- Siemens_02206_1_DATA.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $124.56Surplus $36.29
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