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 MP1515N Miniature Circuit Breakers (MCBs) 1P 15/15A 50/60Hz 1Ph EA
MSRP $320.99Surplus $44.50Murray MP1515N Miniature Circuit Breakers (MCBs) 1P 15/15A 50/60Hz 1Ph EA​ ARCA SKU: C15-6297 Brand: Murray MPN: MP1515N UPC: 04089228063 Shipping Weight: 2.50 lbs. Shipping...- SKU:
- C15-6297
- Data Sheet:
- SiemensAG_01518_1_DATA.pdf
- Used On:
- Loadcenter
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 8 AWG (Copper), 12 to 8 AWG (Aluminum)
- Current Rating:
- 15 A
- Mounting:
- Plug-On
- Short Description:
- 120 V, 15/15 A, 10 kA, 1-Pole, Load Lug Terminal, MH-T Frame, Thermal Magnetic, Low Vage, Miniature, Circuit Breaker
- Type:
- Duplex
- Number of Poles:
- 1
- Voltage Rating:
- 120 VAC
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Mexico
MSRP $320.99Surplus $44.50 -
Murray Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V
MSRP $268.86Surplus $68.80Murray Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V​ ARCA SKU: C15-6219 Brand: Murray MPN: Q24030CT2 UPC: 78364308396 Shipping Weight: 0.80 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6219
- TS PIK:
- 115555490
- Used On:
- Loadcenter
- Series:
- QT
- Terminal Type:
- Lug
- Country of Origin:
- Mexico
- Type:
- Thermal/Fixed Magnetic, Common Trip, Quadplex
- Data Sheet:
- SiemensAG_07035_1_DATA.pdf
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum) Inside, 8 to 6 AWG (Copper)/8 to 4 AWG (Aluminum) Outside
- Size:
- 2 Inch W x 2.06 Inch D x 3.12 Inch H
- Catalog:
- SiemensAG_00562_1_42_1_46_1_47_CAT.pdf
- Mounting:
- Plug-On
- Current Rating:
- 40/30 A
- Interrupting Rating:
- 10 kA
- Short Description:
- 120/240 VAC, 40/30 A, 10 kA, (2) 2-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-In Mount, QT Frame, Quadplex, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Approval:
- UL 489
MSRP $268.86Surplus $68.80 -
Murray MP130 Miniature Circuit Breakers (MCBs) 1P 30A 50/60Hz 1Ph EA
MSRP $53.09Surplus $22.54Murray MP130 Miniature Circuit Breakers (MCBs) 1P 30A 50/60Hz 1Ph EA​ ARCA SKU: C15-6293 Brand: Murray MPN: MP130 UPC: 04089251891 Shipping Weight: 3.40 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6293
- TS PIK:
- 21029782
- Used On:
- Loadcenter
- Size:
- 1 Inch W x 3 Inch D x 3 1/8 Inch H
- Wire Size:
- 16 to 14 AWG (Copper/Aluminum)
- Current Rating:
- 30 A
- Voltage Rating:
- 120 VAC
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_06579_1_DATA.pdf
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 1
- Series:
- MP-T
- Terminal Type:
- Load Lug
- Short Description:
- 120 VAC, 30 A, 10 kA, 1-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Country of Origin:
- Mexico
MSRP $53.09Surplus $22.54 -
Murray MP2020 Miniature Circuit Breakers (MCBs) 120V
MSRP $192.96Surplus $77.87Murray MP2020 Miniature Circuit Breakers (MCBs) 120V​ ARCA SKU: C15-4042 Brand: Murray MPN: MP2020 UPC: 04089228110 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-4042
- Series:
- MP
- Type:
- Thermal Magnetic
- Type:
- Duplex
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 120 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 1
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Load Lug
- Wire Size:
- 14 to 8 AWG (Copper)
- Wire Size:
- 12 to 8 AWG (Aluminum)
- Short Description:
- 120 VAC, 20 A, 10 kA, (2) 1-Pole, 14 to 8 AWG Copper/12 to 8 AWG Aluminum, Plug-In Mount, MH-T Frame, Duplex, Thermal Magnetic Trip Unit
- Data Sheet:
- SiemensAG_06589_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- TS PIK:
- 21029422
- Number of Poles:
- 1
- Voltage Rating:
- 120 VAC
- Current Rating:
- 20 A
- Country of Origin:
- Mexico
MSRP $192.96Surplus $77.87 -
Murray MP270 Miniature Circuit Breakers (MCBs) 2P 70A 120V
MSRP $401.86Surplus $66.79Murray 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 $401.86Surplus $66.79 -
Murray MBK100 Miniature Circuit Breakers (MCBs)
Surplus $180.05SKU: C15-8543 Brand: Murray MPN: MBK100 UPC: 78138145556 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-8543
- TS PIK:
- 21262725
- Current Rating:
- 100 A
- Used On:
- EQIII Load Center
- Interrupting Rating:
- 22 kA
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_10293_1_2_DATA.pdf
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Catalog:
- SiemensAG_09190_1_40-1_47_CAT.pdf
- Type:
- Low Vage, Thermal Magnetic
- Country of Origin:
- Mexico
- Approval:
- UL 489
- Short Description:
- BREAKER 100A 2P 120/240V 22K EQ9675 MAIN
Surplus $180.05 -
Murray MP140 Miniature Circuit Breakers (MCBs)
MSRP $50.37Surplus $12.22Murray MP140 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6295 Brand: Murray MPN: MP140 UPC: Shipping Weight: 3.55 lbs. Shipping Height: 3.00 In. Shipping Length: 11...- SKU:
- C15-6295
- Series:
- MP-T
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Short Description:
- 120 VAC, 40 A, 10 kA, 1-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Voltage Rating:
- 120 VAC
- Size:
- 1 Inch W x 3 Inch D x 3 1/8 Inch H
- Current Rating:
- 40 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Used On:
- Loadcenter
- Number of Poles:
- 1
- Data Sheet:
- SiemensAG_06582_1_DATA.pdf
- Terminal Type:
- Load Lug
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Country of Origin:
- United States
MSRP $50.37Surplus $12.22 -
Murray MP240 Miniature Circuit Breakers (MCBs) 2P 40A 50/60Hz 3Ph EA
MSRP $197.25Surplus $46.73Murray 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 $197.25Surplus $46.73 -
Murray MP240GF Miniature Circuit Breakers (MCBs) 2P 40A
MSRP $455.35Surplus $245.95Murray MP240GF Miniature Circuit Breakers (MCBs) 2P 40A​ ARCA SKU: C15-6322 Brand: Murray MPN: MP240GF UPC: 04089252997 Shipping Weight: 1.05 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-6322
- TS PIK:
- 120071726
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC, 40 A, 10 kA, 5 mA, 2-Pole, Plug-In Mount, MP-GT Frame, GFCI, Personal Protect, Miniature Circuit Breaker
- Type:
- Circuit Interrupter
- Current Rating:
- 40 A
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_01825_1_3_CAT.pdf
- Size:
- 2 Inch W x 3 Inch D x 4.41 Inch H
- Terminal Type:
- Load Lug
- Data Sheet:
- SiemensAG_06625_1_DATA.pdf
- Used On:
- Loadcenter
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Country of Origin:
- Philippines
- Trip Sensitivity:
- 5 MilliA
- Approval:
- UL 489/943, CSA C22.2
MSRP $455.35Surplus $245.95 -
Murray MQ115 Miniature Circuit Breakers (MCBs) 1P 15A
MSRP $95.56Surplus $17.13Murray MQ115 Miniature Circuit Breakers (MCBs) 1P 15A​ ARCA SKU: C15-6314 Brand: Murray MPN: MQ115 UPC: 04089252814 Shipping Weight: 2.70 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6314
- TS PIK:
- 120071844
- Voltage Rating:
- 120 VAC
- Type:
- Common Trip
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Current Rating:
- 15 A
- Short Description:
- 15 A, 10 kA, 1-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Number of Poles:
- 1
- Data Sheet:
- SiemensAG_06675_1_DATA.pdf
- Mounting:
- Plug-On
- Country of Origin:
- Mexico
MSRP $95.56Surplus $17.13 -
Murray MQ120 Miniature Circuit Breakers (MCBs) 1P 20A
MSRP $95.56Surplus $22.94Murray MQ120 Miniature Circuit Breakers (MCBs) 1P 20A​ ARCA SKU: C15-6315 Brand: Murray MPN: MQ120 UPC: 04089252815 Shipping Weight: 4.30 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6315
- TS PIK:
- 120072352
- Data Sheet:
- SiemensAG_06676_1_DATA.pdf
- Interrupting Rating:
- 10 kA
- Current Rating:
- 20 A
- Mounting:
- Plug-On
- Short Description:
- 20 A, 10 kA, 1-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Type:
- Common Trip
- Voltage Rating:
- 120 VAC
- Number of Poles:
- 1
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Country of Origin:
- Mexico
MSRP $95.56Surplus $22.94 -
Murray MQ130 Miniature Circuit Breakers (MCBs) 1P 30A 50/60Hz 1Ph EA
MSRP $90.66Surplus $93.36Murray MQ130 Miniature Circuit Breakers (MCBs) 1P 30A 50/60Hz 1Ph EA​ ARCA SKU: C15-6316 Brand: Murray MPN: MQ130 UPC: 30040892528160 Shipping Weight: 2.30 lbs. Shipping Height: 4.00...- SKU:
- C15-6316
- Short Description:
- 30 A, 10 kA, 1-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_06677_1_DATA.pdf
- Voltage Rating:
- 120 VAC
- Number of Poles:
- 1
- Type:
- Common Trip
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Current Rating:
- 30 A
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $90.66Surplus $93.36 -
Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A
MSRP $189.29Surplus $36.06Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A​ ARCA SKU: C15-6317 Brand: Murray MPN: MQ220 UPC: 04089252820 Shipping Weight: 3.70 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6317
- TS PIK:
- 120071665
- Short Description:
- 20 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Type:
- Common Trip
- Current Rating:
- 20 A
- Number of Poles:
- 2
- Mounting:
- Plug-On
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_06682_1_DATA.pdf
- Voltage Rating:
- 120/240 V
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $189.29Surplus $36.06 -
Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A
MSRP $189.29Surplus $33.61Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A​ ARCA SKU: C15-6318 Brand: Murray MPN: MQ240 UPC: 04089252822 Shipping Weight: 4.45 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6318
- TS PIK:
- 120071673
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_06684_1_DATA.pdf
- Mounting:
- Plug-On
- Number of Poles:
- 2
- Current Rating:
- 40 A
- Short Description:
- 40 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Type:
- Common Trip
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $189.29Surplus $33.61 -
Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A
MSRP $199.09Surplus $38.28Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A​ ARCA SKU: C15-6319 Brand: Murray MPN: MQ250 UPC: 04089252823 Shipping Weight: 1.30 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6319
- TS PIK:
- 120071678
- Mounting:
- Plug-On
- Type:
- Common Trip
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Current Rating:
- 50 A
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_06685_1_DATA.pdf
- Short Description:
- 50 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Mexico
MSRP $199.09Surplus $38.28 -
Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A
MSRP $199.09Surplus $21.07Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A​ ARCA SKU: C15-6320 Brand: Murray MPN: MQ260 UPC: 04089252824 Shipping Weight: 2.30 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6320
- TS PIK:
- 120072355
- Voltage Rating:
- 120/240 VAC
- Type:
- Common Trip
- Short Description:
- 60 A, 10 kA, 2-Pole, 3/4" Format, MSQ Frame, Circuit Breaker
- Number of Poles:
- 2
- Mounting:
- Plug-On
- Current Rating:
- 60 A
- Data Sheet:
- SiemensAG_06686_1_DATA.pdf
- Used On:
- Loadcenter, Type QO Circuit Breaker, Type QO Panelboard
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Mexico
MSRP $199.09Surplus $21.07
Disclaimer: ARCA Supply is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by ARCA Supply are covered under ARCA Supply's warranty and not the manufacturer warranty.
