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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Murray MP3100 Miniature Circuit Breakers (MCBs) EA
MSRP $763.20Surplus $53.47SKU: C15-6331 Brand: Murray MPN: MP3100 UPC: 04089223760 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In. Shipping Length: 3.15 In. Shipping Width: 3.00 In...- SKU:
- C15-6331
- TS PIK:
- 21029187
- Short Description:
- 240 VAC, 100 A, 10 kA, 3-Pole, Plug-In Mount, MP-T Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker
- Type:
- Common Trip
- Series:
- MP-T
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Current Rating:
- 100 A
- Used On:
- Loadcenter
- Voltage Rating:
- 240 VAC
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Data Sheet:
- SiemensAG_06644_1_DATA.pdf
- Size:
- 3 Inch W x 3 Inch D x 3 1/8 Inch H
- Terminal Type:
- Load Lug
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $763.20Surplus $53.47 -
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Square D QO3100 Miniature Circuit Breakers (MCBs) 3P 100A 240V
MSRP $395.28Surplus $135.66Square D QO3100 Miniature Circuit Breakers (MCBs) 3P 100A 240V​ ARCA SKU: C15-6378 Brand: Square D MPN: QO3100 UPC: 78590100441 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6378
- TS PIK:
- 124024933
- Series:
- QO
- Terminal Type:
- Box Lug
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Type:
- Common Trip, Miniature, Standard
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53556_1_2_DATA.pdf
- Current Rating:
- 100 A
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Mounting:
- Plug-On
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Country of Origin:
- Mexico
MSRP $395.28Surplus $135.66 -
Eaton BR3100 Miniature Circuit Breakers (MCBs) 3P 100A 120V EA
MSRP $596.20Surplus $82.88Eaton BR3100 Miniature Circuit Breakers (MCBs) 3P 100A 120V EA​ ARCA SKU: C15-1251 Brand: Eaton MPN: BR3100 UPC: 786676368094 Shipping Weight: 1.10 lbs. Shipping Height: 3.00 In...- SKU:
- C15-1251
- Series:
- BR
- Type:
- Common Trip
- Type:
- Quadplex
- Approval:
- UL 489
- Volts:
- 208 VAC Star/120 VAC
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 4 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 208 Star/120 VAC, 240 VAC, 100 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_56_V1T1_85_CAT.pdf
- TS PIK:
- 21493902
- Voltage Rating:
- 208 VAC Star/120 VAC, 240 VAC
- Number of Poles:
- 3
- Current Rating:
- 100 A
- Country of Origin:
- Dominican Republic
MSRP $596.20Surplus $82.88 -
Eaton BRH3100 Miniature Circuit Breakers (MCBs) BR 3P 100A 240V 50/60Hz 3Ph EA
MSRP $1,184.00Surplus $186.84SKU: C15-2744 Brand: Eaton MPN: BRH3100 UPC: 786676372909 Shipping Weight: 1.15 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 3.00 In...- SKU:
- C15-2744
- Approval:
- UL 489
- Amps:
- 100 A
- Interrupting Rating:
- 22 kA
- Mounting:
- Plug-On
- Poles:
- 3
- Terminal Type:
- Thermal Magnetic
- Type:
- Main
- Used On:
- Loadcenter
- Volts:
- 208 VAC Star/120 VAC
- Volts:
- 240 VAC
- Gauge:
- 4 to 1/0 AWG (Aluminum/Copper)
- Short Description:
- 208 Star/120 VAC, 240 VAC, 100 A, 22 kA, 3-Pole, Plug-On Mount, Thermal Magnetic, Main, Circuit Breaker
- Series:
- BR
- Specification/Technical:
- images.tradeser ...
- TS PIK:
- 21494018
- Voltage Rating:
- 208 VAC Star/120 VAC, 240 VAC
- Catalog:
- Eaton_36620_V1T1_56_V1T1_85_CAT.pdf
- Current Rating:
- 100 A
- Number of Poles:
- 3
- Wire Size:
- 4 to 1/0 AWG (Aluminum/Copper)
- Country of Origin:
- Dominican Republic
MSRP $1,184.00Surplus $186.84 -
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GE TQL32Y100 Miniature Circuit Breakers (MCBs)
MSRP $653.00Surplus $176.31SKU: C15-14490 Brand: GE MPN: TQL32Y100 UPC: 78316418887 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-14490
- Number of Poles:
- 3
- Type:
- Thermal Magnetic, Compact
- Interrupting Rating:
- 5 kA at 120/240 VAC
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_12241_1_CAD.pdf
- Approval:
- UL
- Terminal Type:
- Plug-On
- Current Rating:
- 100 A
- Short Description:
- 240 VAC, 100 A, 52 kA, 3-Pole, Copper/Aluminum Load Lug Terminal, Q-Line Frame, Switch Trip Function, 1" Plug-On Mount, Molded Case, Thermal Magnetic, Compact, Internal Common Trip, Miniature Circuit Breaker
- Used On:
- Load Center, Lighting Panelboard
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC
MSRP $653.00Surplus $176.31 -
GENERAL ELECTRIC THQL32100 Miniature Circuit Breakers (MCBs) EA
MSRP $437.31Surplus $161.22GENERAL ELECTRIC THQL32100 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-6054 Brand: GENERAL ELECTRIC MPN: THQL32100 UPC: 78316401216 Shipping Weight: 1.05 lbs. Shipping...- SKU:
- C15-6054
- Terminal Type:
- Plug-On
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 240 VAC, 100 A, 10 kA, 3-Pole, 6 to 1/0 AWG Copper/4 to 1/0 AWG Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Non-Interchangeable/Internal Common Trip, Compact, Fixed Thermal Magnetic, Circuit Breaker
- Type:
- Thermal Magnetic, Compact
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00499_1_CAD.pdf
- Number of Poles:
- 3
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_31_CAT.pdf
- Current Rating:
- 100 A
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Mounting:
- Plug-On
- Maximum AC Voltage Rating:
- 240 V
- Frame Type:
- Q-Line
- Approval:
- UL
MSRP $437.31Surplus $161.22 -
Siemens ED43S100A Molded Case Breakers (MCCBs)
MSRP $2,310.00Surplus $277.32SKU: E30-11696 Brand: Siemens MPN: ED43S100A UPC: 78364321103 Shipping Weight: 3.70 lbs. Shipping Height: 6.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In...- SKU:
- E30-11696
- TS PIK:
- 126673849
- Series:
- ED4
- Interrupting Rating:
- 18 kA at 480 VAC (UL)
- Catalog:
- SiemensAG_01698_17_78_17_114_CAT.pdf
- Short Description:
- 480 VAC 50/60 Hz, 100 A, 1000 A Self-Protective Instantaneous Override, 3-Pole, 10 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Magnetic, Non-Interchangeable Trip, Molded Case Circuit Breaker Switch
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Terminal Type:
- Load Lug
- Type:
- Molded Case Switch
- Current Rating:
- 100 A
- Number of Poles:
- 3
- Size:
- 3 Inch W x 4.56 Inch D x 6.35 Inch H
- Voltage Rating:
- 480 VAC at 50/60 Hz, 500 VDC (UL)
- Country of Origin:
- Mexico
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Mounting:
- Plug-On
- Approval:
- UL 489, CSA C22.2
MSRP $2,310.00Surplus $277.32 -
Siemens Q3100 Miniature Circuit Breakers (MCBs)
MSRP $141.03Surplus $87.48SKU: C15-6275 Brand: Siemens MPN: Q3100 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6275
- TS PIK:
- 115704614
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_01547_1_DATA.pdf
- Used On:
- Load Centre Main, Feeder
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Catalog:
- SiemensAG_01502_1_12_CAT.pdf
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 3
- Current Rating:
- 100 A
- Voltage Rating:
- 240 V
- Type:
- Thermal Magnetic, Common Trip
- Short Description:
- 240 V, 100 A, 10 kA, 3-Pole, Plug-On, QP/MP Frame, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Country of Origin:
- Mexico
MSRP $141.03Surplus $87.48 -
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Siemens Q310000S01 Miniature Circuit Breakers (MCBs)
MSRP $804.00Surplus $319.20SKU: C15-10559 Brand: Siemens MPN: Q310000S01 UPC: 78364323768 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10559
- TS PIK:
- 120831462
- Short Description:
- 240 VAC, 100 A, 10 kA, 3-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, 120 VAC Shunt Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Type:
- Thermal and Fixed Magnetic, Common Trip
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Number of Poles:
- 3
- Mounting:
- Plug-On
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Current Rating:
- 100 A
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07052_1_DATA.pdf
- Size:
- 3 Inch W x 3 Inch D x 3-1/8 Inch H
- Interrupting Rating:
- 10 kA
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Used On:
- Loadcenter
- Terminal Type:
- Load Lug
- Country of Origin:
- Mexico
MSRP $804.00Surplus $319.20 -
Siemens Q3100H Miniature Circuit Breakers (MCBs) EA
MSRP $700.00Surplus $64.96SKU: C15-10560 Brand: Siemens MPN: Q3100H UPC: 78364317082 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10560
- TS PIK:
- 21366919
- Short Description:
- 240 VAC, 100 A, 22 kA, 3-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QPH Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Voltage Rating:
- 240 V
- Mounting:
- Plug-On
- Type:
- Thermal Magnetic
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Interrupting Rating:
- 22 kA
- Data Sheet:
- SiemensAG_07053_1_DATA.pdf
- Current Rating:
- 100 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Number of Poles:
- 3
- Used On:
- Load Centre Main, Feeder
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Country of Origin:
- Mexico
MSRP $700.00Surplus $64.96 -
Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph
MSRP $530.00Surplus $319.20Square D QO3100VH Miniature Circuit Breakers (MCBs) QO 3P 100A 240V 50/60Hz 3Ph​ ARCA SKU: C15-2181 Brand: Square D MPN: QO3100VH UPC: 785901060192 Shipping Weight: 39.10 Shipping...- SKU:
- C15-2181
- Series:
- QO
- Type:
- Bi-Metallic
- Type:
- Thermal
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Enclosure:
- IP20
- Terminal Type:
- Box Lug
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 22 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- Eaton_41013_1-7_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Number of Poles:
- 3
- Current Rating:
- 100 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Country of Origin:
- Mexico
MSRP $530.00Surplus $319.20
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