
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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Square D QO390 Miniature Circuit Breakers (MCBs)
MSRP $395.28Surplus $105.30Square D QO390 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6591 Brand: Square D MPN: QO390 UPC: 78590100440 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-6591
- TS PIK:
- 109595133
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Mounting:
- Plug-On
- Data Sheet:
- SchneiderElectric-SquareD_53614_1_2_DATA.pdf
- Number of Poles:
- 3
- Short Description:
- 120/240 VAC 50/60 Hz, 90 A, 10 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
- Type:
- Common Trip, Miniature, Standard
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Current Rating:
- 90 A
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $395.28Surplus $105.30 -
Eaton CH3090 Miniature Circuit Breakers (MCBs) CH 3P 90A 240V 50/60Hz 3Ph EA
MSRP $680.00Surplus $292.60Eaton CH3090 Miniature Circuit Breakers (MCBs) CH 3P 90A 240V 50/60Hz 3Ph EA​ ARCA SKU: C15-3739 Brand: Eaton MPN: CH3090 UPC: 782113102399 Shipping Weight: 0.90 lbs. Shipping...- SKU:
- C15-3739
- Series:
- CH
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 240 VAC
- Amps:
- 32 A
- Used On:
- CH Series Load Center
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 240 VAC, 90 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Thermal Magnetic
- Catalog:
- Eaton_00071_V1T1_36_V1T1_37_CAT.pdf
- TS PIK:
- 531282
- Current Rating:
- 90 A
- Voltage Rating:
- 240 VAC
- Number of Poles:
- 3
- Country of Origin:
- Dominican Republic
MSRP $680.00Surplus $292.60 -
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Eaton BR390ST Miniature Circuit Breakers (MCBs)
MSRP $1,037.00Surplus $360.43SKU: C15-1271 Brand: Eaton MPN: BR390ST UPC: 786676003476 Shipping Weight: 1.30 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-1271
- TS PIK:
- 115785821
- Type:
- Thermal Magnetic, Common Trip
- Interrupting Rating:
- 10 kA
- Current Rating:
- 90 A
- Wire Size:
- 4 to 1/0 AWG (Aluminum/Copper)
- Used On:
- BR Series Loadcenter
- Approval:
- UL 489
- Catalog:
- Eaton_36620_V1T1_84_CAT.pdf
- Mounting:
- Plug-On
- Number of Poles:
- 3
- Short Description:
- 240 VAC, 90 A, 10 kA, 3-Pole, Plug-On Mount, Common Trip, Shunt Trip, Duplex, Thermal Magnetic, Circuit Breaker
- Voltage Rating:
- 240 VAC
- Series:
- BR
MSRP $1,037.00Surplus $360.43 -
Siemens ED43B090 Everything Else 3P 90A
MSRP $2,297.00Surplus $930.29SKU: C15-7556 Brand: Siemens MPN: ED43B090 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-7556
- TS PIK:
- 120152300
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 480 VAC 50/60 Hz, 90 A, 18 kA, 3-Pole, 10 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Series:
- ED4
- Terminal Type:
- Load Lug
- Country of Origin:
- MEX
- Number of Poles:
- 3
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Size:
- 3 Inch W x 4.56 Inch D x 6.35 Inch H
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Approval:
- UL 489, CSA C22.2
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Voltage Rating:
- 480 VAC at 50/60 Hz (UL)
- Current Rating:
- 90 A
- Mounting:
- Plug-On
- Interrupting Rating:
- 65 kA at 240 VAC, 18 kA at 480 VAC (UL)
MSRP $2,297.00Surplus $930.29 -
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Siemens Q390 Molded Case Breakers (MCCBs)
MSRP $88.66Surplus $23.94SKU: C15-19057 Brand: Siemens MPN: Q390 UPC: 66286200439 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19057
- Voltage Rating:
- 240 V
- Number of Poles:
- 3
- Country of Origin:
- MEX
- Current Rating:
- 90 A
- Size:
- 3.7 Inch Width x 12.8 Inch Depth x 3.4 Inch Height
- Type:
- Thermal Magnetic, Common Trip
- Approval:
- UL 489
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07076_1_DATA.pdf
- Short Description:
- 240 VAC, 90 A, 10 kA, 3-Pole, 8 to 2/0 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Mounting:
- Plug-On
- Used On:
- Load Centre Main, Feeder
- Interrupting Rating:
- 10 kA
MSRP $88.66Surplus $23.94 -
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Siemens Q39000S01 Molded Case Breakers (MCCBs)
MSRP $273.36Surplus $73.81SKU: C15-19058 Brand: Siemens MPN: Q39000S01 UPC: 78364323767 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19058
- Size:
- 3 Inch W x 3 Inch D x 3-1/8 Inch H
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Number of Poles:
- 3
- Wire Size:
- 8 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Load Lug
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Short Description:
- 240 VAC, 90 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
- Data Sheet:
- SiemensAG_07077_1_DATA.pdf
- Used On:
- Loadcenter
- Interrupting Rating:
- 10 kA
- Country of Origin:
- MEX
- Current Rating:
- 90 A
- Approval:
- UL 489, CSA C22.2
- Type:
- Thermal and Fixed Magnetic, Common Trip
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Mounting:
- Plug-On
MSRP $273.36Surplus $73.81 -
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Square D QO3901021 Molded Case Breakers (MCCBs)
MSRP $836.00Surplus $225.72SKU: C15-17808 Brand: Square D MPN: QO3901021 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-17808
- Number of Poles:
- 3
- Terminal Type:
- Box Lug
- Short Description:
- 120/240 VAC 50/60 Hz, 90 A, 10 kA Interrupt, 3-Pole, Plug-On Mount, 4-Panel Space, Box Lug Terminal, AC Shunt Trip, Standard, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Current Rating:
- 90 A
- Type:
- Common Trip, Thermal Magnetic
- Wire Size:
- 4 to 2/0 AWG (Aluminum/Copper)
- Mounting:
- Plug-On
- Data Sheet:
- SchneiderElectric-SquareD_15075_1_2_DATA.pdf
- Size:
- 2.25 Inch W x 2.91 Inch D x 3 Inch H
- CAD Drawings:
- SchneiderElectric-SquareD_17845_1_CAD.pdf
- Catalog:
- SchneiderElectric-SquareD_03264_1_3_1_9_CAT.pdf
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Voltage Rating:
- 240 VAC at 50/60 Hz
- Approval:
- UL, CSA
MSRP $836.00Surplus $225.72 -
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Square D QO390VH Molded Case Breakers (MCCBs)
MSRP $996.00Surplus $146.35SKU: U00-8582 Brand: Square D MPN: QO390VH UPC: 78590112061 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8582
- Wire Size:
- 4 to 2/0 AWG (Copper/Aluminum)
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Series:
- QO
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 90 A, 22 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-On Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 3
- Type:
- Common Trip, Miniature, Standard
- Approval:
- UL, CSA
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Mounting:
- Plug-On
- Data Sheet:
- SchneiderElectric-SquareD_53615_1_2_DATA.pdf
- Current Rating:
- 90 A
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.5 Inch Height
MSRP $996.00Surplus $146.35
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