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 Q24030CT2 Miniature Circuit Breakers (MCBs) 2P 120V
MSRP $197.50Surplus $50.54Murray 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 $197.50Surplus $50.54 -
Murray MP270 Miniature Circuit Breakers (MCBs) 2P 70A 120V
MSRP $295.20Surplus $49.64Murray 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 $49.64 -
Murray MP220SN Miniature Circuit Breakers (MCBs) 1P 20A 120V
MSRP $234.00Surplus $64.35Murray MP220SN Miniature Circuit Breakers (MCBs) 1P 20A 120V​ ARCA SKU: C15-6306 Brand: Murray MPN: MP220SN UPC: 04089252807 Shipping Weight: 0.75 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6306
- TS PIK:
- 120071982
- Short Description:
- BREAKER 20A 1P 120V 10K MG SWT NEUTRAL
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $234.00Surplus $64.35 -
Murray MP230GFA Miniature Circuit Breakers (MCBs) 2P 30A
MSRP $428.00Surplus $115.28Murray MP230GFA Miniature Circuit Breakers (MCBs) 2P 30A​ ARCA SKU: C15-6307 Brand: Murray MPN: MP230GFA UPC: 88762121595 Shipping Weight: 1.05 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6307
- TS PIK:
- 120071983
- Short Description:
- BRKR MP-GT GFCI 5MA 2P 240V 30A 10KA
- Number of Poles:
- 2
- Country of Origin:
- Philippines
MSRP $428.00Surplus $115.28 -
Murray MP240 Miniature Circuit Breakers (MCBs) 2P 40A 50/60Hz 3Ph EA
MSRP $144.90Surplus $34.42Murray 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 $34.42 -
Murray MP240GF Miniature Circuit Breakers (MCBs) 2P 40A
MSRP $334.50Surplus $142.24Murray 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 $334.50Surplus $142.24 -
Murray MPD2150 Miniature Circuit Breakers (MCBs) 2P 150A
MSRP $953.10Surplus $157.53Murray MPD2150 Miniature Circuit Breakers (MCBs) 2P 150A​ ARCA SKU: C15-6343 Brand: Murray MPN: MPD2150 UPC: 04089200642 Shipping Weight: 2.00 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6343
- TS PIK:
- 120251314
- Size:
- 7.61 Inch W x 3.5 Inch D x 6.65 Inch H
- Voltage Rating:
- 120/240 VAC
- Data Sheet:
- SiemensAG_06658_1_DATA.pdf
- Type:
- Main/Branch, Common Trip
- Used On:
- Loadcenter
- Terminal Type:
- Load Lug
- Number of Poles:
- 2
- Wire Size:
- 1 AWG to 300 KCMIL (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 150 A, 10 kA, 2-Pole, MD-T Frame, Non-Reversible, Main Circuit Breaker for Load Center
- Current Rating:
- 150 A
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Mexico
MSRP $953.10Surplus $157.53 -
Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A
MSRP $139.05Surplus $19.02Murray 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 $139.05Surplus $19.02 -
Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A
MSRP $139.05Surplus $18.05Murray 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 $139.05Surplus $18.05 -
Murray MQ250 Miniature Circuit Breakers (MCBs) 2P 50A
MSRP $146.25Surplus $20.24Murray 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 $146.25Surplus $20.24 -
Murray MQ260 Miniature Circuit Breakers (MCBs) 2P 60A
MSRP $146.25Surplus $15.48Murray 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 $146.25Surplus $15.48 -
Murray MQJ2150 Miniature Circuit Breakers (MCBs)
MSRP $1,133.00Surplus $160.48SKU: C15-7648 Brand: Murray MPN: MQJ2150 UPC: 04089252490 Shipping Weight: 3.30 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-7648
- TS PIK:
- 123474991
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $1,133.00Surplus $160.48
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