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 & Kits
- Product
- Qty in Cart
- Price
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Eaton BR2100 Miniature Circuit Breakers (MCBs)
MSRP $273.14Surplus $52.65SKU: C15-1215 Brand: Eaton MPN: BR2100 UPC: 786676363259 Shipping Weight: 0.70 lbs. Shipping Height: 3.00 In. Shipping Length: 2.00 In. Shipping Width: 2.00 In...- SKU:
- C15-1215
- Series:
- BR
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Approval:
- CSA
- Size:
- 1.9 Inch Length x 2 Inch Width x 2.4 Inch Height
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- BR Series Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Lug
- Wire Size:
- 4 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 100 A, 10 kA, 2-Pole, Lug Screw Terminal, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_56_V1T1_84_CAT.pdf
- TS PIK:
- 21493865
- Number of Poles:
- 2
- Current Rating:
- 100 A
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Dominican Republic
MSRP $273.14Surplus $52.65 -
Eaton BRH2100 Miniature Circuit Breakers (MCBs)
MSRP $244.00Surplus $117.00SKU: C15-1302 Brand: Eaton MPN: BRH2100 UPC: 786676373906 Shipping Weight: 0.75 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-1302
- Series:
- BR
- Type:
- Standard
- Type:
- Common Trip
- Approval:
- UL 489
- Volts:
- 208 VAC Star/120 VAC
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- Loadcenter
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Wire Size:
- 8 to 1/0 AWG (Aluminum/Copper)
- Short Description:
- 208 Star/120 VAC, 240 VAC, 100 A, 22 kA, 2-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic
- Catalog:
- Eaton_36620_V1T1_56_V1T1_84_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_13464_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00099_INST.pdf
- TS PIK:
- 21494036
- Number of Poles:
- 2
- Current Rating:
- 100 A
- Voltage Rating:
- 208 VAC Star/120 VAC, 240 VAC
- Country of Origin:
- Dominican Republic
MSRP $244.00Surplus $117.00 -
Eaton BRHH2100 Miniature Circuit Breakers (MCBs)
MSRP $728.46Surplus $117.00SKU: C15-1321 Brand: Eaton MPN: BRHH2100 UPC: 786676376952 Shipping Weight: 0.75 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 2.00 In...- SKU:
- C15-1321
- Series:
- BR
- Short Description:
- 120/240 VAC, 100 A, 42 kA, 2-Pole, Plug-On Mount, Common Trip, Duplex, Thermal Magnetic, Circuit Breaker
- Mounting:
- Plug-On
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 42 kA
- Type:
- Thermal Magnetic, Common Trip
- Current Rating:
- 100 A
- Used On:
- BR Series Loadcenter
- Catalog:
- Eaton_36620_V1T1_84_CAT.pdf
- Wire Size:
- 8 to 1/0 AWG (Aluminum/Copper)
- TS PIK:
- 21494075
- Country of Origin:
- Dominican Republic
- Approval:
- UL 489
- Poles:
- 2
MSRP $728.46Surplus $117.00 -
Eaton CH2100CS Miniature Circuit Breakers (MCBs)
MSRP $309.65Surplus $98.34SKU: C15-1394 Brand: Eaton MPN: CH2100CS UPC: 782116630776 Shipping Weight: 0.65 lbs. Shipping Height: 3.00 In. Shipping Length: 6.00 In. Shipping Width: 5.00 In...- SKU:
- C15-1394
- Series:
- CH
- Type:
- Standard
- Type:
- Thermal Magnetic
- Type:
- HACR Rated
- Approval:
- UL 489
- Approval:
- CSA 22.2
- Approval:
- Fed Spec WC 375b
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- CH Series Load Center
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Short Description:
- 120/240 VAC, 100 A, 2-Pole, 10 kA, Plug-On Mount, Common Trip, Thermal Magnetic
- Catalog:
- Eaton_00001_V1T1_37_V1T1_38_CAT.pdf
- TS PIK:
- 120935344
- Current Rating:
- 100 A
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Country of Origin:
- Dominican Republic
MSRP $309.65Surplus $98.34 -
Eaton CH3100 Miniature Circuit Breakers (MCBs)
MSRP $600.00Surplus $214.50SKU: C15-4116 Brand: Eaton MPN: CH3100 UPC: 622588123454 Shipping Weight: 0.90 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 4.00 In...- SKU:
- C15-4116
- Approval:
- UL 489
- Approval:
- CSA
- Amps:
- 100 A
- Interrupting Rating:
- 10 kA
- Mounting:
- Plug-On
- Poles:
- 3
- Terminal Type:
- Thermal Magnetic
- Type:
- Common Trip
- Used On:
- CH Series Load Center
- Volts:
- 240 VAC
- Gauge:
- 10 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 240 VAC, 100 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Thermal Magnetic, Circuit Breaker
- Series:
- CH
- TS PIK:
- 116113440
- Country of Origin:
- Dominican Republic
- Current Rating:
- 100 A
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Catalog:
- Eaton_00071_V1T1_36_V1T1_37_CAT.pdf
- Voltage Rating:
- 240 VAC
- Number of Poles:
- 3
MSRP $600.00Surplus $214.50 -
GENERAL ELECTRIC THQL32100 Miniature Circuit Breakers (MCBs) EA
MSRP $437.31Surplus $85.80GENERAL 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
- Country of Origin:
- United States
- Poles:
- 3
MSRP $437.31Surplus $85.80 -
Siemens ED43S100A Molded Case Breakers (MCCBs)
MSRP $2,310.00Surplus $507.00SKU: 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 $507.00 -
Siemens Q3100 Miniature Circuit Breakers (MCBs)
MSRP $141.03Surplus $109.20SKU: 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
- Approval:
- UL 489
MSRP $141.03Surplus $109.20 -
Square D HOM2100 Standard, Common Trip 100A Miniature Circuit Breaker
MSRP $168.00Surplus $52.65Square D HOM2100 Miniature Circuit Breakers (MCBs) 2P 100A 120V EA​ ARCA SKU: C15-6617 Brand: Square D MPN: HOM2100 UPC: 78590106575 Shipping Weight: 0.90 lbs. Shipping Height: 3.00...- SKU:
- C15-6617
- TS PIK:
- 111082012
- Interrupting Rating:
- 10 kA
- Catalog:
- SchneiderElectric-SquareD_03264_1_19_1_37_1_39_CAT.pdf
- Size:
- 1 Inch Width x 2.98 Inch Depth x 3.13 Inch Height
- Type:
- Standard, Common Trip
- Mounting:
- Plug-On
- Terminal Type:
- Box Lug
- Current Rating:
- 100 A
- Used On:
- Load Center
- Voltage Rating:
- 120/240 VAC
- Wire Size:
- 4 to 2/0 AWG (Aluminum/Copper)
- Number of Poles:
- 1
- Short Description:
- 120/240 VAC, 100 A, 10 kA, 2-Pole, Box Lug Terminal, Plug-In Mount, Standard, Common Trip, Miniature Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_00099_INST.pdf
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $168.00Surplus $52.65 -
Square D QO3100 Miniature Circuit Breakers (MCBs) 3P 100A 240V
MSRP $395.28Surplus $142.80Square 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
- Approval:
- UL, CSA
MSRP $395.28Surplus $142.80
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.

