
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 MP2020 Miniature Circuit Breakers (MCBs) 120V
MSRP $141.75Surplus $57.20Murray 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 $141.75Surplus $57.20 -
Murray MQ120 Miniature Circuit Breakers (MCBs) 1P 20A
MSRP $70.20Surplus $16.85Murray 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 $70.20Surplus $16.85 -
Murray MQ220 Miniature Circuit Breakers (MCBs) 2P 20A
MSRP $139.05Surplus $26.49Murray 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 $26.49
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.