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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Murray MP340 Miniature Circuit Breakers (MCBs)
MSRP $512.10Surplus $43.35Murray MP340 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6302 Brand: Murray MPN: MP340 UPC: Shipping Weight: 1.10 lbs. Shipping Height: 5.00 In. Shipping Length: 4...- SKU:
- C15-6302
- Short Description:
- 240 VAC, 40 A, 10 kA, 3-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Number of Poles:
- 3
- Interrupting Rating:
- 10 kA
- Type:
- Common Trip
- Used On:
- Loadcenter
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Size:
- 3 Inch W x 3 Inch D x 3 1/8 Inch H
- Current Rating:
- 40 A
- Terminal Type:
- Load Lug
- Data Sheet:
- SiemensAG_06651_1_DATA.pdf
- Mounting:
- Plug-On
- Voltage Rating:
- 240 VAC
- Series:
- MP-T
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Country of Origin:
- Mexico
MSRP $512.10Surplus $43.35 -
Murray MP140 Miniature Circuit Breakers (MCBs)
MSRP $37.00Surplus $8.98Murray 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 $37.00Surplus $8.98 -
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
MSRP $144.90Surplus $34.33 -
Murray MP240GF Miniature Circuit Breakers (MCBs) 2P 40A
MSRP $334.50Surplus $180.67Murray 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
MSRP $334.50Surplus $180.67 -
Murray MQ240 Miniature Circuit Breakers (MCBs) 2P 40A
MSRP $139.05Surplus $24.69Murray 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 $24.69
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.
