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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GENERAL ELECTRIC THHQB21100 Miniature Circuit Breakers (MCBs)
MSRP $779.00Surplus $38.32GENERAL ELECTRIC THHQB21100 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-2811 Brand: GENERAL ELECTRIC MPN: THHQB21100 UPC: 78316413498 Shipping Weight: 0.75 lbs. Shipping...- SKU:
- C15-2811
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Terminal Type:
- Bolt-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120/240 VAC, 100 A, 22 kA, 2-Pole, 6 to 1 AWG Copper/4 to 1 AWG Aluminum, Bolt-On, Fixed Thermal Magnetic, Internal Common Trip
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_38_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00004_INST.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00490_1_CAD.pdf
- TS PIK:
- 112128578
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00490_1_CAD.pdf
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 100 A
- Mounting:
- Bolt-On
- Series:
- THHQ
- Country of Origin:
- United States
MSRP $779.00Surplus $38.32 -
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
- Country of Origin:
- United States
MSRP $437.31Surplus $161.22 -
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Leviton LM100 Miniature Circuit Breakers (MCBs)
MSRP $139.00Surplus $36.18SKU: C15-11835 Brand: Leviton MPN: LM100 UPC: 7847781541 Shipping Weight: 2.90 lbs. Shipping Height: 3.00 In. Shipping Length: 7.00 In. Shipping Width: 3.00 In...- SKU:
- C15-11835
- Short Description:
- 120/240 VAC, 100 A, 22 kA, 2-Pole, Plug-On Mount, Hydraulic Magnetic Trip, Main Circuit Breaker
- Terminal Type:
- Lug
- Mounting:
- Plug-On
- Country of Origin:
- CHN
- Number of Poles:
- 2
- Voltage Rating:
- 120/240 VAC
- Used On:
- Load Center, Panel
- Interrupting Rating:
- 22 kA
- Type:
- Hydraulic Magnetic Trip
- Approval:
- UL 489, CSA C22.2, FCC, EMC
- Current Rating:
- 100 A
- Catalog:
- Leviton_00008_A2_A3_A6_A7_CAT.pdf
- Wire Size:
- 6 AWG to 300 MCM (Copper/Aluminum)
- Installation/Operator:
- Leviton_00228_INST.pdf
MSRP $139.00Surplus $36.18 -
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Siemens B2100 Miniature Circuit Breakers (MCBs)
MSRP $498.00Surplus $98.00Siemens B2100 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-2264 Brand: Siemens MPN: B2100 UPC: Shipping Weight: 0.56 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-2264
- Type:
- Molded Case
- Type:
- Branch
- Type:
- Common Trip
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Used On:
- P1 Panelboard
- Poles:
- 2
- Interrupting Rating:
- 10 kA
- Application:
- Electrical Distribution
- Installation:
- Bolt-On
- Short Description:
- 120/240 VAC, 100 A, 10 kA, 2-Pole, Bolt-On Mount, Molded Case, Branch, Common Trip
- Catalog:
- SiemensAG_00876_5_18_5_19_CAT.pdf
- Data Sheet:
- SiemensAG_01601_1_DATA.pdf
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 100 A
- Number of Poles:
- 2
- Country of Origin:
- Mexico
MSRP $498.00Surplus $98.00 -
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Siemens EQ8681 Molded Case Breakers (MCCBs)
MSRP $132.00Surplus $35.64SKU: C15-16013 Brand: Siemens MPN: EQ8681 UPC: 78364338788 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16013
- Series:
- EQ
- Short Description:
- 100 A, 22 kA, Plug-On Mount, EQ Frame, Thermal Magnetic, Main Circuit Breaker Kit for Load Center
- Voltage Rating:
- 120/240 VAC
- Wire Size:
- 4 AWG to 300 KCMIL (Copper/Aluminum)
- Mounting:
- Bolt-On
- Data Sheet:
- SiemensAG_05853_1_DATA.pdf
- Used On:
- Loadcenter
- Current Rating:
- 100 A
- Interrupting Rating:
- 22 kA
- Installation/Operator:
- SiemensAG_00316_INST.pdf
- Country of Origin:
- MEX
- Catalog:
- SiemensAG_01808_1_40-1_42_CAT.pdf
- Approval:
- UL
MSRP $132.00Surplus $35.64 -
Siemens Q2100 Miniature Circuit Breakers (MCBs)
MSRP $297.50Surplus $54.55SKU: C15-11912 Brand: Siemens MPN: Q2100 UPC: 78364314868 Shipping Weight: 0.65 lbs. Shipping Height: 3.00 In. Shipping Length: 3.00 In. Shipping Width: 2.00 In...- SKU:
- C15-11912
- TS PIK:
- 21366655
- Number of Poles:
- 2
- Type:
- Low Vage, Common Trip, Thermal Magnetic, Miniature
- Current Rating:
- 100 A
- Country of Origin:
- Mexico
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 100 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, QP/MP-Frame, Low Vage, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Mounting:
- Plug-On
- Used On:
- Load Center
- Size:
- 2 Inch Width x 3 Inch Depth x 3 Inch Height
- Approval:
- UL 489, CSA
- Installation/Operator:
- SiemensAG_00053_INST.pdf
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SiemensAG_00870_1_2_DATA.pdf
- Catalog:
- SiemensAG_01829_2_5_CAT.pdf
MSRP $297.50Surplus $54.55 -
Siemens Q2100 Miniature Circuit Breakers (MCBs) 2P 100A 120/240V
MSRP $908.77Surplus $108.90SKU: C15-8486 Brand: Siemens MPN: Q2100 UPC: 78312661976 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-8486
- TS PIK:
- 21333978
- Approval:
- UL 489, CSA
- Installation/Operator:
- SiemensAG_00053_INST.pdf
- Interrupting Rating:
- 10 kA
- Country of Origin:
- Mexico
- Catalog:
- SiemensAG_01829_2_5_CAT.pdf
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC, 100 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, QP/MP-Frame, Low Vage, Common Trip, Thermal Magnetic, Miniature, Circuit Breaker
- Mounting:
- Plug-On
- Type:
- Low Vage, Common Trip, Thermal Magnetic, Miniature
- Size:
- 2 Inch Width x 3 Inch Depth x 3 Inch Height
- Used On:
- Load Center
- Data Sheet:
- SiemensAG_00870_1_2_DATA.pdf
- Current Rating:
- 100 A
- Voltage Rating:
- 120/240 VAC
MSRP $908.77Surplus $108.90 -
Square D QO2100 Miniature Circuit Breakers (MCBs) 2P 100A 120V
MSRP $189.00Surplus $66.30Square D QO2100 Miniature Circuit Breakers (MCBs) 2P 100A 120V​ ARCA SKU: C15-6636 Brand: Square D MPN: QO2100 UPC: 78590150130 Shipping Weight: 0.70 lbs. Shipping Height: 2.00 In...- SKU:
- C15-6636
- TS PIK:
- 124024916
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Data Sheet:
- SchneiderElectric-SquareD_53469_1_2_DATA.pdf
- Number of Poles:
- 2
- Type:
- Common Trip, Miniature, Standard
- Current Rating:
- 100 A
- Terminal Type:
- Box Lug
- Mounting:
- Plug-On
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 10 kA Interrupt, 2-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Series:
- QO
- Interrupting Rating:
- 10 kA
- Country of Origin:
- United States
- Approval:
- UL, CSA
MSRP $189.00Surplus $66.30 -
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Square D QOM100VH8106 Miniature Circuit Breakers (MCBs) EA
MSRP $242.00Surplus $69.15Square D QOM100VH8106 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9374 Brand: Square D MPN: QOM100VH8106 UPC: Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-9374
- TS PIK:
- 122966518
- Data Sheet:
- SchneiderElectric-SquareD_05139_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 100 A, 22 kA, 2-Pole, 12 to 2/0 AWG Aluminum/Copper, Bolt-On Mount, Miniature Circuit Breaker
- Wire Size:
- 12 to 2/0 AWG (Aluminum/Copper)
- Interrupting Rating:
- 22 kA
- Voltage Rating:
- 120/240 VAC
- Current Rating:
- 100 A
- CAD Drawings:
- SchneiderElectric-SquareD_05485_1_CAD.pdf
- Mounting:
- Bolt-On
- Number of Poles:
- 1
- Country of Origin:
- Mexico
- Approval:
- UL
MSRP $242.00Surplus $69.15 -
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Square D QOM2100MM Molded Case Breakers (MCCBs)
MSRP $887.00Surplus $192.91SKU: U00-8597 Brand: Square D MPN: QOM2100MM UPC: 78590176520 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8597
- Installation/Operator:
- SchneiderElectric-SquareD_00343_INST.pdf
- Catalog:
- SchneiderElectric-SquareD_03284_2_7_CAT.pdf
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 100 A, 10 kA, Bolt-On Mount, 2-Pole, Circuit Breaker
- Current Rating:
- 100 A
- Approval:
- UL
MSRP $887.00Surplus $192.91 -
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Square D QOM2100MVH Molded Case Breakers (MCCBs)
MSRP $1,515.00Surplus $409.05SKU: C15-17916 Brand: Square D MPN: QOM2100MVH UPC: 78590130150 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17916
- Current Rating:
- 100 A
- Installation/Operator:
- SchneiderElectric-SquareD_00906_INST.pdf
- Voltage Rating:
- 120/240 VAC
- Short Description:
- 5.07" x 3.6" x 5.6", 120/240 VAC, 100 A, 22 kA Interrupt, 1-Phase, 2-Pole, Bolt-On Mount, Meter Center Miniature Circuit Breaker
- Interrupting Rating:
- 22 kA
- Catalog:
- SchneiderElectric-SquareD_03391_2_7_CAT.pdf
- Approval:
- UL
- Data Sheet:
- SchneiderElectric-SquareD_15296_1_2_DATA.pdf
MSRP $1,515.00Surplus $409.05 -
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THHQB32100 Miniature Circuit Breakers (MCBs) 3P 100A 240V
MSRP $905.00Surplus $258.02SKU: C15-3677 Brand: MPN: THHQB32100 UPC: 783164118674 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In. Shipping Length: 4.00 In. Shipping Width: 4.00 In...- SKU:
- C15-3677
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 3
- Interrupting Rating:
- 22 kA at 120/240 VAC
- Terminal Type:
- Bolt-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120/240 VAC, 100 A, 22 kA Interrupt, 3-Pole, 6 to 1/0 AWG Copper/4 to 1/0 AWG Aluminum Load Lug Terminal, 1" Bolt-On Mount, Q-Line Frame, Non-Interchangeable/Internal Common Trip, Compact, Fixed Thermal Magnetic
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00542_6_4_6_5_6_8_6_38_CAT.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01786_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 3
- Current Rating:
- 100 A
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01786_1_CAD.pdf
MSRP $905.00Surplus $258.02 -
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THQL21100 Miniature Circuit Breakers (MCBs) THQL 2P 100A 120V
MSRP $275.00Surplus $52.93THQL21100 Miniature Circuit Breakers (MCBs) THQL 2P 100A 120V​ ARCA SKU: C15-3785 Brand: MPN: THQL21100 UPC: 783164099232 Shipping Weight: 0.60 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-3785
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Terminal Type:
- Plug-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 120/240 VAC, 100 A, 10 kA, 2-Pole, 6 to 1/0 AWG Copper/4 to 1/0 AWG Aluminum, 1" Plug-In Mount, Box Terminal, Q-Line Frame, Molded Case, Internal Common Trip, Compact, Fixed Thermal Magnetic
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00015_6_8_6_30_CAT.pdf
- Installation/Operator:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00006_INST.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00501_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_00501_1_CAD.pdf
- Current Rating:
- 100 A
- Number of Poles:
- 2
MSRP $275.00Surplus $52.93 -
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THQL22100 Miniature Circuit Breakers (MCBs) 2P 100A 240VAC
MSRP $237.00Surplus $212.80THQL22100 Miniature Circuit Breakers (MCBs) 2P 100A 240VAC​ ARCA SKU: C15-3135 Brand: MPN: THQL22100 UPC: 783164012125 Shipping Weight: 0.70 Shipping Height: 4.00 In. Shipping...- SKU:
- C15-3135
- Type:
- Thermal Magnetic
- Type:
- Compact
- Approval:
- UL
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Interrupting Rating:
- 10 kA at 120/240 VAC
- Terminal Type:
- Plug-On
- Frame Type:
- Q-Line
- Maximum AC Voltage Rating:
- 240 V
- Short Description:
- 240 VAC, 100 A, 2-Pole, 10 kA, 6 to 1/0 AWG/4 to 1/0 AWG Copper/Aluminum, Plug-In Mount, Box Terminal, Thermal Magnetic, Non-Interchangeable
- Catalog:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_01912_1_7_6_29_6_31_CAT.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_04200_1_CAD.pdf
- Current Rating:
- 100 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- CAD Drawings:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_04200_1_CAD.pdf
MSRP $237.00Surplus $212.80
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.
