
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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- Qty in Cart
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Eaton BKHKD400T Molded Case Breakers (MCCBs) KD 3P 400A 480V 50/60Hz 3Ph K Frame
MSRP $8,607.20Surplus $2,094.63SKU: C15-3332 Brand: Eaton MPN: BKHKD400T UPC: 786685584683 Shipping Weight: 15.90 lbs. Shipping Height: 8.00 In. Shipping Length: 21.00 In. Shipping Width: 12.00 In...- SKU:
- C15-3332
- Series:
- C
- Volts:
- 480 V
- Amps:
- 400 A
- Poles:
- 3
- Frequency Rating:
- 50/60 Hz
- Frame:
- K
- Short Description:
- MAIN OR SUB-FEED BREAKER KIT, POW-R-STOCK SERIES, HKD CIRCUIT BREAKER, 480V MAX
MSRP $8,607.20Surplus $2,094.63 -
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Eaton BKKD250 Molded Case Breakers (MCCBs) KD 3P 250A 480V 50/60Hz 3Ph K Frame
MSRP $4,444.00Surplus $455.48SKU: C15-4833 Brand: Eaton MPN: BKKD250 UPC: 786689030827 Shipping Weight: 19.00 lbs. Shipping Height: 7.00 In. Shipping Length: 24.00 In. Shipping Width: 11.00 In...- SKU:
- C15-4833
- Frame Type:
- K
- Voltage Rating:
- 480 VAC
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Type:
- KD
- Size:
- 6 Inch Length x 4 Inch Width x 3 Inch Height
- Short Description:
- 250 A, 1 or 3-Phase, Top/Bottom Mount, KD Frame
- Specification/Technical:
- Eaton_00437_1_SPEC.pdf
- Number of Phases:
- 3
- Country of Origin:
- Mexico
MSRP $4,444.00Surplus $455.48 -
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Eaton BKKD250T Loadcenters and Panelboards EA
MSRP $5,357.00Surplus $480.20SKU: L19-5396 Brand: Eaton MPN: BKKD250T UPC: 78668700992 Shipping Weight: 16.15 lbs. Shipping Height: 7.00 In. Shipping Length: 23.00 In. Shipping Width: 12.00 In...- SKU:
- L19-5396
- TS PIK:
- 120824493
- Short Description:
- 240 VAC 1/3-Phase, 250 A, Top Mount, Main, Circuit Breaker Kit
- Type:
- Main
- Voltage Rating:
- 480 VAC
- Series:
- Series BKKD
- Current Rating:
- 250 A
MSRP $5,357.00Surplus $480.20 -
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Eaton BKKD350 Circuit Breaker Accessories Main Breaker Kit 350A
MSRP $4,444.00Surplus $1,491.81SKU: C15-3122 Brand: Eaton MPN: BKKD350 UPC: 786689030926 Shipping Weight: 19.30 lbs. Shipping Height: 7.00 In. Shipping Length: 24.00 In. Shipping Width: 11.00 In...- SKU:
- C15-3122
- Amps:
- 350 A
- Short Description:
- EATON POW-R-STOCK SERIES MAIN CIRCUIT BREAKER KIT, KD CIRCUIT BKR TYPE, TOP AND
MSRP $4,444.00Surplus $1,491.81 -
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Eaton BKKD350T Molded Case Breakers (MCCBs)
MSRP $4,050.00Surplus $1,477.23SKU: C15-4138 Brand: Eaton MPN: BKKD350T UPC: 786687009948 Shipping Weight: 15.70 lbs. Shipping Height: 6.00 In. Shipping Length: 22.00 In. Shipping Width: 12.00 In...- SKU:
- C15-4138
- Application:
- Distribution
- Amps:
- 350 A
- Installation:
- Top
- Poles:
- 0
- Trip Setting:
- 0
- Type:
- Main
- Used On:
- PRL1A/PRL2A Panelboard
- Volts:
- 480 VAC
- Short Description:
- 480 VAC 1/3-Phase, 350 A, Top Mount, Main, Circuit Breaker Kit
- Series:
- BKKD
- Specification/Technical:
- Eaton_37556_1_SPEC.pdf
- TS PIK:
- 127752230
- Voltage Rating:
- 480 VAC
- Current Rating:
- 350 A
MSRP $4,050.00Surplus $1,477.23 -
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Eaton BKKD400B Molded Case Breakers (MCCBs) KD 3P 400A 480V 50/60Hz 3Ph K Frame
MSRP $1,696.00Surplus $1,129.64SKU: C15-3462 Brand: Eaton MPN: BKKD400B UPC: 786687009993 Shipping Weight: 19.10 lbs. Shipping Height: 5.00 In. Shipping Length: 22.00 In. Shipping Width: 11.00 In...- SKU:
- C15-3462
- Application:
- Distribution
- Amps:
- 400 A
- Installation:
- Bottom
- Poles:
- 0
- Trip Setting:
- 0
- Type:
- Main
- Used On:
- PRL1A/PRL2A Panelboard
- Volts:
- 480 VAC
- Short Description:
- 240 VAC 1/3-Phase, 400 A, Bottom Mount, Main, Circuit Breaker Kit
- Series:
- Series BKKD
- Specification/Technical:
- Eaton_40639_1_SPEC.pdf
- TS PIK:
- 120824500
- Voltage Rating:
- 480 VAC
- Current Rating:
- 400 A
MSRP $1,696.00Surplus $1,129.64 -
Eaton BKKD400T Molded Case Breakers (MCCBs) Main Breaker Kit 3P 400A 480V 50/60Hz EA 3 Phase
MSRP $3,772.18Surplus $788.61SKU: C15-3391 Brand: Eaton MPN: BKKD400T UPC: 78668700995 Shipping Weight: 16.05 lbs. Shipping Height: 7.00 In. Shipping Length: 24.00 In. Shipping Width: 12.00 In...- SKU:
- C15-3391
- Application:
- Distribution
- Amps:
- 400 A
- Installation:
- Top
- Type:
- Main
- Used On:
- PRL1A/PRL2A Panelboard
- Volts:
- 480 VAC
- Short Description:
- 240 VAC 1/3-Phase, 400 A, Top Mount, Main, Circuit Breaker Kit
- Series:
- BKKD
- Specification/Technical:
- Eaton_40640_1_SPEC.pdf
- TS PIK:
- 120824496
- Current Rating:
- 400 A
- Voltage Rating:
- 480 VAC
- Number of Phases:
- 3
- Country of Origin:
- United States
MSRP $3,772.18Surplus $788.61 -
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Eaton BMH1 Circuit Breaker Accessories EA
MSRP $28.00Surplus $7.54Eaton BMH1 Circuit Breaker Accessories EA​ ARCA SKU: C15-2045 Brand: Eaton MPN: BMH1 UPC: 786679110058 Shipping Weight: 0.05 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-2045
- Series:
- C
- Type:
- Steel Screw
- Type:
- Lockwasher
- Used On:
- Molded Case Circuit Breaker
- Poles:
- 3/4
- Mounting:
- Individual
- Accessory Type:
- Mounting Accessories
- Short Description:
- 3/4-Pole, Individual Mount, Imperial Thread, Steel Screw, Lockwasher
- Catalog:
- Eaton_03771_V4T2_41_V4T2_417_V4T2_461_CAT.pdf
MSRP $28.00Surplus $7.54 -
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Eaton BMH2 Circuit Breaker Accessories Mounting Hardware 3P J Frame
MSRP $25.00Surplus $6.27Eaton BMH2 Circuit Breaker Accessories Mounting Hardware 3P J Frame​ ARCA SKU: C15-2059 Brand: Eaton MPN: BMH2 UPC: 786679110102 Shipping Weight: 0.14 Shipping Height: 0.50 In. Shipping...- SKU:
- C15-2059
- Mounting:
- Individual
- Number of Breakers:
- 0
- Poles:
- 38020
- Type:
- Screw and Lockwasher
- Type:
- Imperial Thread
- Type:
- Pan Head
- Used On:
- C Series J Frame Molded Case Circuit Breaker
- Short Description:
- 0.25"-20 TPI x 2.75", Steel, Pan Head, Mounting Screw with Lockwasher for 2/3/4-Pole J Frame Molded Case Circuit Breaker
- Specification/Technical:
- EatonCorp_00326_1_2_SPEC.pdf
- Catalog:
- EatonCorp_00274_V4T2_456_CAT.pdf
MSRP $25.00Surplus $6.27 -
Eaton BMH3 Circuit Breaker Accessories
MSRP $30.00Surplus $10.09Eaton BMH3 Circuit Breaker Accessories​ ARCA SKU: C15-11330 Brand: Eaton MPN: BMH3 UPC: Shipping Weight: 0.10 lbs. Shipping Height: 1.00 In. Shipping Length: 7.00 In...- SKU:
- C15-11330
- TS PIK:
- 110191843
- Type:
- Imperial Thread Mounting
- Used On:
- K-Frame Molded Case Circuit Breaker
- Short Description:
- 2/3/4-Pole, Individual, Base Mount, Imperial Thread Mounting, Circuit Breaker Mounting Hardware
- Catalog:
- Eaton_03771_V4T2_56_V4T2_417_V4T2_461_CAT.pdf
- Country of Origin:
- United States
- Mounting:
- Individual, Base
MSRP $30.00Surplus $10.09 -
Eaton BMH5 Circuit Breaker Accessories Mounting Hardware 4P
MSRP $27.00Surplus $4.28Eaton BMH5 Circuit Breaker Accessories Mounting Hardware 4P​ ARCA SKU: C15-2031 Brand: Eaton MPN: BMH5 UPC: 786679304112 Shipping Weight: 0.20 Shipping Height: 1.70 In. Shipping...- SKU:
- C15-2031
- Mounting:
- Individual
- Poles:
- 38020
- Type:
- Screw and Lockwasher and Flat Washer
- Type:
- Imperial Thread
- Type:
- Filister Head
- Used On:
- C Series M/N Frame Molded Case Circuit Breaker
- Specification/Technical:
- Eaton_05501_1_2_SPEC.pdf
- Catalog:
- Eaton_57992_57_CAT.pdf
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY HARDWARE, IMPERIAL THREAD MOUNTING H
- Country of Origin:
- United States
MSRP $27.00Surplus $4.28 -
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Eaton BQ215215 Miniature Circuit Breakers (MCBs)
MSRP $394.95Surplus $68.63SKU: U00-7900 Brand: Eaton MPN: BQ215215 UPC: Shipping Weight: 0.60 lbs. Shipping Height: 3.00 In. Shipping Length: 2.00 In. Shipping Width: 3.00 In. Product...- SKU:
- U00-7900
- TS PIK:
- 21493955
MSRP $394.95Surplus $68.63 -
Eaton BQ215220 Miniature Circuit Breakers (MCBs)
MSRP $175.00Surplus $73.15SKU: C15-1135 Brand: Eaton MPN: BQ215220 UPC: 786676004381 Shipping Weight: 0.75 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 2.00 In...- SKU:
- C15-1135
- Series:
- BQ
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 15/20 A, 10 kA, 2-Pole Outer/2-Pole Center, Plug-On Mount, BQ Breaker, Independent Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_83_V1T1_87_CAT.pdf
- Data Sheet:
- SchneiderElectric_15632_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02030_INST.pdf
- CAD Drawing:
- SchneiderElectric_30258_1_CAD.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 15 A (Outside Pole, Independent Trip Pole), 20 A (Center Pole, Independent Trip Pole)
- Country of Origin:
- Dominican Republic
- TS PIK:
- 116434675
MSRP $175.00Surplus $73.15 -
Eaton BQ215230 Miniature Circuit Breakers (MCBs) BQ 2P 15A/30A 240V 50/60Hz 1Ph
MSRP $181.00Surplus $73.15Eaton BQ215230 Miniature Circuit Breakers (MCBs) BQ 2P 15A/30A 240V 50/60Hz 1Ph​ ARCA SKU: C15-1136 Brand: Eaton MPN: BQ215230 UPC: 786676004404 Shipping Weight: 0.90 Shipping Height: 3.00...- SKU:
- C15-1136
- Series:
- BQ
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 15/30 A, 10 kA, 2-Pole Outer/2-Pole Center, Plug-On Mount, BQ Breaker, Independent Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_83_V1T1_87_CAT.pdf
- Current Rating:
- 15 A (Outside Pole, Independent Trip Pole), 30 A (Center Pole, Independent Trip Pole)
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Country of Origin:
- Dominican Republic
MSRP $181.00Surplus $73.15 -
Eaton BQ215250 Miniature Circuit Breakers (MCBs) BQ 2P 15/50A 120/240V 50/60Hz 1Ph
MSRP $175.00Surplus $67.61Eaton BQ215250 Miniature Circuit Breakers (MCBs) BQ 2P 15/50A 120/240V 50/60Hz 1Ph​ ARCA SKU: C15-1138 Brand: Eaton MPN: BQ215250 UPC: 786676004435 Shipping Weight: 0.90 lbs. Shipping...- SKU:
- C15-1138
MSRP $175.00Surplus $67.61 -
Eaton BQ2202115 Miniature Circuit Breakers (MCBs) BQ 2P 15A/20A 240V 50/60Hz 1Ph
MSRP $195.00Surplus $73.15Eaton BQ2202115 Miniature Circuit Breakers (MCBs) BQ 2P 15A/20A 240V 50/60Hz 1Ph​ ARCA SKU: C15-2828 Brand: Eaton MPN: BQ2202115 UPC: 786676371353 Shipping Weight: 0.76 Shipping Height: 3...- SKU:
- C15-2828
- Series:
- BQ
- Type:
- Thermal Magnetic
- Type:
- Independent Trip
- Type:
- Quadplex
- Approval:
- UL 489
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 15/20 A, 10 kA, 1-Pole Outer Left/1-Pole Outer Right/2-Pole Center, Plug-On Mount, BQ Breaker, Independent Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_83_V1T1_87_CAT.pdf
MSRP $195.00Surplus $73.15 -
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Eaton BQ220215 Miniature Circuit Breakers (MCBs) BQ 2P 20A/15A 240V 50/60Hz 1Ph
MSRP $195.00Surplus $55.63Eaton BQ220215 Miniature Circuit Breakers (MCBs) BQ 2P 20A/15A 240V 50/60Hz 1Ph​ ARCA SKU: C15-1140 Brand: Eaton MPN: BQ220215 UPC: 786676004459 Shipping Weight: 0.75 Shipping Height: 2.00...- SKU:
- C15-1140
- Type:
- Reversing
- Approval:
- UL 489
- Size:
- 2 Inch W x 3 Inch D x 3 Inch H
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- Type BR Loadcenter
- Poles:
- 4
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Enclosure:
- IP20
- Wire Size:
- 14 to 4 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 20/15 A, 10 kA, 4-Pole, Plug-On Mount, BQ Breaker, Quadplex, Independent Trip, Thermal Magnetic
- CAD Drawing:
- Eaton_46480_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 4
- Current Rating:
- (1) 2-Pole 20 A, (1) 2-Pole 15 A
MSRP $195.00Surplus $55.63 -
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Eaton BQ2252115 Miniature Circuit Breakers (MCBs) BQ 2P 15A/25A 120/240V 50/60Hz 1Ph
MSRP $184.00Surplus $63.80Eaton BQ2252115 Miniature Circuit Breakers (MCBs) BQ 2P 15A/25A 120/240V 50/60Hz 1Ph​ ARCA SKU: C15-1145 Brand: Eaton MPN: BQ2252115 UPC: 786676370967 Shipping Weight: 0.70 lbs. Shipping...- SKU:
- C15-1145
MSRP $184.00Surplus $63.80 -
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Eaton BQ225225 Miniature Circuit Breakers (MCBs) BQ 2P 25A 240V 50/60Hz 1Ph
MSRP $184.00Surplus $66.84Eaton BQ225225 Miniature Circuit Breakers (MCBs) BQ 2P 25A 240V 50/60Hz 1Ph​ ARCA SKU: C15-1147 Brand: Eaton MPN: BQ225225 UPC: 786676370950 Shipping Weight: 0.75 Shipping Height: 3.00 In...- SKU:
- C15-1147
- Series:
- BQ
- Volts:
- 240 V
- Amps:
- 25 A
- Poles:
- 2
- Frequency Rating:
- 50/60 Hz
- Short Description:
- EATON BR THERMAL MAGNETIC CIRCUIT BREAKER,TYPE BQ 1-INCH CTL PLUG-ON CIRCUIT BRE
MSRP $184.00Surplus $66.84 -
Eaton BQ2302115 Miniature Circuit Breakers (MCBs) BQ 2P 15A/30A 240V 50/60Hz 1Ph EA
MSRP $236.97Surplus $72.56Eaton BQ2302115 Miniature Circuit Breakers (MCBs) BQ 2P 15A/30A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-1149 Brand: Eaton MPN: BQ2302115 UPC: 786676371506 Shipping Weight: 0.75 Shipping...- SKU:
- C15-1149
- Series:
- BQ
- Type:
- Common Trip
- Approval:
- UL 489
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 14 to 4 AWG (Aluminum/Copper)
- Short Description:
- 120/240 VAC, 15/30 A, 10 kA, 1-Pole Outer Left/1-Pole Outer Right/2-Pole Center, Plug-On Mount, BQ Breaker, Independent Trip, Quadplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_83_V1T1_87_CAT.pdf
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 15/30 A
- Number of Poles:
- 2
- Country of Origin:
- Dominican Republic
MSRP $236.97Surplus $72.56
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