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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Murray MP250 Miniature Circuit Breakers (MCBs)
MSRP $144.90Surplus $29.54Murray MP250 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8861 Brand: Murray MPN: MP250 UPC: 04089251898 Shipping Weight: 0.80 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-8861
- TS PIK:
- 115407723
- Short Description:
- 120/240 V, 50 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Vage, Miniature, Circuit Breaker
- Type:
- Common Trip
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC
- Data Sheet:
- SiemensAG_01526_1_DATA.pdf
- Used On:
- Loadcenter
- Current Rating:
- 50 A
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 2
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Series:
- MP-T
- Terminal Type:
- Load Lug
MSRP $144.90Surplus $29.54 -
Murray MP270 Miniature Circuit Breakers (MCBs) 2P 70A 120V
MSRP $295.20Surplus $49.06Murray MP270 Miniature Circuit Breakers (MCBs) 2P 70A 120V​ ARCA SKU: C15-6308 Brand: Murray MPN: MP270 UPC: 04089227980 Shipping Weight: 4.00 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6308
- TS PIK:
- 120071984
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Type:
- Common Trip
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_06636_1_DATA.pdf
- Short Description:
- 120/240 VAC, 70 A, 10 kA, 2-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Used On:
- Loadcenter
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Series:
- MP-T
- Number of Poles:
- 2
- Current Rating:
- 70 A
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Country of Origin:
- Mexico
MSRP $295.20Surplus $49.06 -
Crouse-Hinds MP215 Miniature Circuit Breakers (MCBs)
MSRP $144.90Surplus $26.16Crouse-Hinds MP215 Miniature Circuit Breakers (MCBs)​ ARCA SKU: E30-7370 Brand: Crouse-Hinds MPN: MP215 UPC: 04089251893 Shipping Weight: 0.90 lbs. Shipping Height: 4.00 In...- SKU:
- E30-7370
- TS PIK:
- 21029784
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Current Rating:
- 15 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Series:
- MP-T
- Mounting:
- Plug-On
- Wire Size:
- 16 to 14 AWG (Copper/Aluminum)
- Terminal Type:
- Load Lug
- Short Description:
- 120/240 V, 15 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Vage, Miniature, Circuit Breaker
- Type:
- Common Trip
- Data Sheet:
- SiemensAG_01522_1_DATA.pdf
- Used On:
- Loadcenter
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Mexico
MSRP $144.90Surplus $26.16 -
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Crouse-Hinds MP260 Conduit Fittings
MSRP $144.90Surplus $22.15Crouse-Hinds MP260 Conduit Fittings​ ARCA SKU: C15-5795 Brand: Crouse-Hinds MPN: MP260 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In...- SKU:
- C15-5795
- TS PIK:
- 120071938
- Short Description:
- 120/240 V, 60 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Vage, Miniature, Circuit Breaker
- Series:
- MP-T
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- MEX
- Terminal Type:
- Load Lug
- Type:
- Common Trip
- Current Rating:
- 60 A
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Data Sheet:
- SiemensAG_01527_1_DATA.pdf
- Interrupting Rating:
- 10 kA
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Mounting:
- Plug-On
MSRP $144.90Surplus $22.15 -
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Murray MP215 Miniature Circuit Breakers (MCBs)
MSRP $144.90Surplus $31.05Murray MP215 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6298 Brand: Murray MPN: MP215 UPC: 04089251893 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6298
- TS PIK:
- 21029784
- Terminal Type:
- Load Lug
- Short Description:
- 120/240 V, 15 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Vage, Miniature, Circuit Breaker
- Data Sheet:
- SiemensAG_01522_1_DATA.pdf
- Current Rating:
- 15 A
- Number of Poles:
- 2
- Interrupting Rating:
- 10 kA
- Series:
- MP-T
- Used On:
- Loadcenter
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Voltage Rating:
- 120/240 VAC
- Wire Size:
- 16 to 14 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Type:
- Common Trip
MSRP $144.90Surplus $31.05 -
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Murray MP225 Miniature Circuit Breakers (MCBs)
MSRP $144.90Surplus $52.16Murray MP225 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6326 Brand: Murray MPN: MP225 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0...- SKU:
- C15-6326
- Current Rating:
- 25 A
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 2
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Wire Size:
- 16 to 14 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 25 A, 10 kA, 2-Pole, Plug-On Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Data Sheet:
- SiemensAG_06611_1_DATA.pdf
- Series:
- MP-T
- Type:
- Common Trip
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Used On:
- Loadcenter
- Mounting:
- Plug-On
- Terminal Type:
- Load Lug
MSRP $144.90Surplus $52.16 -
Murray MP240 Miniature Circuit Breakers (MCBs) 2P 40A 50/60Hz 3Ph EA
MSRP $144.90Surplus $34.33Murray MP240 Miniature Circuit Breakers (MCBs) 2P 40A 50/60Hz 3Ph EA​ ARCA SKU: C15-6288 Brand: Murray MPN: MP240 UPC: 30040892518970 Shipping Weight: 3.70 lbs. Shipping Height: 4.00...- SKU:
- C15-6288
- TS PIK:
- 21029788
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_01525_1_DATA.pdf
- Terminal Type:
- Load Lug
- Current Rating:
- 40 A
- Series:
- MP-T
- Voltage Rating:
- 120/240 VAC
- Used On:
- Loadcenter
- Mounting:
- Plug-On
- Type:
- Common Trip
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Short Description:
- 120/240 V, 40 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Vage, Miniature, Circuit Breaker
- Number of Poles:
- 2
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $144.90Surplus $34.33 -
Contact Us For Quote
Murray MP245 Miniature Circuit Breakers (MCBs)
MSRP $144.90Surplus $52.16Murray 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 $144.90Surplus $52.16 -
Contact Us For Quote
Murray MP290 Miniature Circuit Breakers (MCBs)
MSRP $423.90Surplus $152.60Murray MP290 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6330 Brand: Murray MPN: MP290 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0...- SKU:
- C15-6330
- Type:
- Common Trip
- Used On:
- Loadcenter
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Series:
- MP-T
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Data Sheet:
- SiemensAG_06639_1_DATA.pdf
- Short Description:
- 120/240 VAC, 90 A, 10 kA, 2-Pole, Plug-On Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Current Rating:
- 90 A
- Number of Poles:
- 2
- Terminal Type:
- Load Lug
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
MSRP $423.90Surplus $152.60 -
Siemens MP240 Miniature Circuit Breakers (MCBs) MP 2P 40A 240V EA
MSRP $144.90Surplus $12.01Siemens MP240 Miniature Circuit Breakers (MCBs) MP 2P 40A 240V EA​ ARCA SKU: C15-2820 Brand: Siemens MPN: MP240 UPC: 040892518979 Shipping Weight: 0.60 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-2820
- Series:
- MP-T
- Type:
- Common Trip
- Approval:
- UL
- Size:
- 2 Inch W x 3 Inch D x 3 1/8 Inch H
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 8 to 6 AWG (Copper)
- Wire Size:
- 8 to 4 AWG (Aluminum)
- Short Description:
- 120/240 V, 40 A, 10 kA, 2-Pole, Load Lug Terminal, MP-T Frame, Thermal Magnetic, Low Voltage, Miniature
- Data Sheet:
- SiemensAG_01525_1_DATA.pdf
- Current Rating:
- 40 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $144.90Surplus $12.01
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