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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Siemens BQD125 Miniature Circuit Breakers (MCBs) 1P 25A 277V
MSRP $306.00Surplus $95.76Siemens BQD125 Miniature Circuit Breakers (MCBs) 1P 25A 277V​ ARCA SKU: C15-6150 Brand: Siemens MPN: BQD125 UPC: 78364327710 Shipping Weight: 0.55 lbs. Shipping Height: 1.00 In...- SKU:
- C15-6150
- TS PIK:
- 21366179
- Short Description:
- 277 VAC, 25 A, 14 kA, 1-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Voltage Rating:
- 277 VAC at 50/60 Hz, 125 VDC (UL)
- Number of Poles:
- 1
- Interrupting Rating:
- 14 kA at 277 VAC/125 VDC (UL)
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Current Rating:
- 25 A
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05414_1_DATA.pdf
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Series:
- BQD
- Country of Origin:
- Mexico
MSRP $306.00Surplus $95.76 -
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Siemens ED43B025L Molded Case Breakers (MCCBs)
MSRP $2,130.00Surplus $340.10SKU: C15-8781 Brand: Siemens MPN: ED43B025L UPC: 78364323613 Shipping Weight: 3.75 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-8781
- TS PIK:
- 106248966
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Short Description:
- 480 VAC 50/60 Hz, 25 A at 40 Deg C, 18 kA, 3-Pole, 14 to 10 AWG Copper/12 to 10 AWG Aluminum, Line/Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Number of Poles:
- 3
- Current Rating:
- 25 A
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Voltage Rating:
- 480 VAC at 50/60 Hz (UL)
- Interrupting Rating:
- 65 kA at 240 VAC, 18 kA at 480 VAC (UL)
- Series:
- ED4
- Terminal Type:
- Line Lug
- Size:
- 3 Inch W x 4.56 Inch D x 6.35 Inch H
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Country of Origin:
- Mexico
MSRP $2,130.00Surplus $340.10 -
Siemens ED43B025 Molded Case Breakers (MCCBs)
MSRP $2,130.00Surplus $702.24SKU: C15-7510 Brand: Siemens MPN: ED43B025 UPC: 78364320938 Shipping Weight: 3.70 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 6.00 In...- SKU:
- C15-7510
- TS PIK:
- 126673645
- Type:
- Thermal Magnetic
- Number of Poles:
- 3
- Interrupting Rating:
- 65 kA at 240 VAC (UL 489), 18 kA at 480 VAC (UL 489)
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Frame Type:
- ED
- Size:
- 3 Inch Width x 4.56 Inch Depth x 6.35 Inch Height
- Terminal Type:
- Load Lug
- Voltage Rating:
- 480 VAC
- Series:
- ED4
- Short Description:
- 480 VAC 50/60 Hz, 25 A at 40 Deg C, 18 kA, 3-Pole, 14 to 10 AWG Copper/12 to 10 AWG Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Current Rating:
- 25 A
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $2,130.00Surplus $702.24 -
Siemens Q225 Miniature Circuit Breakers (MCBs) QP 2P 25A 240V
MSRP $155.00Surplus $19.61Siemens Q225 Miniature Circuit Breakers (MCBs) QP 2P 25A 240V​ ARCA SKU: C15-3711 Brand: Siemens MPN: Q225 UPC: 783643148376 Shipping Weight: 0.55 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-3711
- Approval:
- UL 489
- Amps:
- 25 A
- Interrupting Rating:
- 10 A
- Mounting:
- Plug-On
- Poles:
- 2
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Terminal Used On:
- Load Center
- Volts:
- 120/240 VAC
- Short Description:
- 120/240 VAC, 25 A, 10 kA, 2-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Series:
- Q
- Data Sheet:
- SiemensAG_07024_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Number of Poles:
- 2
- Current Rating:
- 25 A
- Voltage Rating:
- 120/240 VAC
- Used On:
- Load Center
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Country of Origin:
- MEX
MSRP $155.00Surplus $19.61 -
Siemens BQ3B025 Miniature Circuit Breakers (MCBs) 3P 25A 240V
MSRP $627.00Surplus $134.13Siemens BQ3B025 Miniature Circuit Breakers (MCBs) 3P 25A 240V​ ARCA SKU: C15-6255 Brand: Siemens MPN: BQ3B025 UPC: 78364316125 Shipping Weight: 1.00 lbs. Shipping Height: 3.00 In...- SKU:
- C15-6255
- TS PIK:
- 21367155
- Number of Poles:
- 3
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Interrupting Rating:
- 10 kA at 240 VAC Symmetrical (UL)
- Current Rating:
- 25 A
- Size:
- 3 Inch W x 3 Inch D x 3-3/4 Inch H
- Terminal Type:
- Load Lug
- Data Sheet:
- SiemensAG_01610_1_DATA.pdf
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Series:
- BQ
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Catalog:
- SiemensAG_00876_5_18_5_24_CAT.pdf
- Short Description:
- 240 VAC, 25 A, 10 kA Interrupt, 3-Pole, BQ-Frame, Load Lug Terminal, Bolt-On Mount, Thermal Magnetic, Common Trip, Molded Case Circuit Breaker
- Country of Origin:
- Mexico
MSRP $627.00Surplus $134.13 -
Siemens B325 Miniature Circuit Breakers (MCBs) B 3P 25A 240V 50/60Hz 3Ph
MSRP $592.00Surplus $117.04Siemens B325 Miniature Circuit Breakers (MCBs) B 3P 25A 240V 50/60Hz 3Ph​ ARCA SKU: C15-2726 Brand: Siemens MPN: B325 UPC: 783643263703 Shipping Weight: 0.95 Shipping Height: 4.00 In...- SKU:
- C15-2726
- Type:
- Molded Case
- Type:
- Thermal and Fixed Magnetic
- Approval:
- UL 489
- Approval:
- CSA C22.2
- Volts:
- 240 VAC at 50/60 Hz (UL)
- Amps:
- 32 A
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Poles:
- 3
- Interrupting Rating:
- 10 kA at 240 VAC (UL)
- Application:
- Lighting
- Application:
- Distribution
- Installation:
- Bolt-On
- Short Description:
- 240 VAC, 25 A, 10 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Data Sheet:
- SiemensAG_05244_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Current Rating:
- 25 A
- Number of Poles:
- 3
- Voltage Rating:
- 240 VAC
- Mounting:
- Bolt-On
- Series:
- B
- Country of Origin:
- Mexico
MSRP $592.00Surplus $117.04 -
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Siemens B325H Miniature Circuit Breakers (MCBs)
MSRP $925.00Surplus $196.84Siemens B325H Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6242 Brand: Siemens MPN: B325H UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6242
- Short Description:
- 240 VAC, 25 A, 22 kA, 3-Pole, Bolt-On Mount, Molded Case, Common Trip, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05246_1_DATA.pdf
- Voltage Rating:
- 240 VAC at 50/60 Hz (UL)
- Catalog:
- SiemensAG_00564_7_29_CAT.pdf
- Interrupting Rating:
- 22 kA at 240 VAC (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Number of Poles:
- 3
- Current Rating:
- 25 A
- Country of Origin:
- Mexico
MSRP $925.00Surplus $196.84 -
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Siemens BQ2B025 Miniature Circuit Breakers (MCBs)
MSRP $188.50Surplus $53.20Siemens BQ2B025 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6252 Brand: Siemens MPN: BQ2B025 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6252
- TS PIK:
- 126617518
- Short Description:
- 120/240 VAC, 25 A, 10 kA, 2-Pole, Load Lug Terminal, BQ Frame, Bolt-On, Common Trip, Molded Case Circuit Breaker
- Size:
- 2 Inch W x 3 Inch D x 3-3/4 Inch H
- Data Sheet:
- SiemensAG_05365_1_DATA.pdf
- Catalog:
- SiemensAG_01698_17_1_17_7_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Type:
- Molded Case, Thermal and Fixed Magnetic, Common Trip
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL)
- Number of Poles:
- 2
- Current Rating:
- 25 A
- Terminal Type:
- Load Lug
- Series:
- BQ
- Wire Size:
- 14 to 6 AWG (Copper), 12 to 6 AWG (Aluminum)
- Interrupting Rating:
- 10 kA at 120/240 VAC Symmetrical (UL)
MSRP $188.50Surplus $53.20 -
Siemens BQD225 Miniature Circuit Breakers (MCBs) 2P 25A 277V
MSRP $680.00Surplus $139.05Siemens BQD225 Miniature Circuit Breakers (MCBs) 2P 25A 277V​ ARCA SKU: C15-6159 Brand: Siemens MPN: BQD225 UPC: 78364327723 Shipping Weight: 1.10 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6159
- TS PIK:
- 21368657
- Catalog:
- SiemensAG_00565_11_16_CAT.pdf
- Series:
- BQD
- Installation/Operator:
- SiemensAG_00221_INST.pdf
- Short Description:
- 480 VAC Star/277 VAC, 25 A, 14 kA, 2-Pole, Low-Tab Mount, Molded Case, Thermal Magnetic Trip Unit, Branch, Panelboard Circuit Breaker
- Voltage Rating:
- 480 Star/277 VAC at 50/60 Hz, 125/250 VDC (UL)
- Number of Poles:
- 2
- Current Rating:
- 25 A
- Interrupting Rating:
- 14 kA at 480 Star/277 VAC/125/250 VDC (UL)
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Data Sheet:
- SiemensAG_05425_1_DATA.pdf
- Type:
- Branch, Molded Case, Thermal and Fixed Magnetic
- Country of Origin:
- Mexico
MSRP $680.00Surplus $139.05 -
Siemens ED63A025 Motor Circuit Protector (MCPs)
MSRP $3,146.00Surplus $422.99SKU: C15-10395 Brand: Siemens MPN: ED63A025 UPC: 78364321083 Shipping Weight: 4.00 lbs. Shipping Height: 6.00 In. Shipping Length: 8.00 In. Shipping Width: 4.00 In...- SKU:
- C15-10395
- TS PIK:
- 21367498
- Short Description:
- 600 VAC, 250 VDC, 25 A, 18/25 kA, 55 to 180 A Instantaneous Trip, 3-Pole, 14 to 10 AWG Copper/12 to 10 AWG Aluminum, Load Lug Terminal, ED Frame, Magnetic, ETI Motor, Molded Case Circuit Breaker
- Series:
- ED6
- Country of Origin:
- MEX
- Number of Poles:
- 3
- Current Rating:
- 25 A
- Size:
- 3 Inch Width x 4.56 Inch Depth x 6.35 Inch Height
- Type:
- Magnetic
- Approval:
- UL 489, CSA C22.2, IEC
- Terminal Type:
- Load Lug
- Maximum DC Voltage Rating:
- 250 V
- Voltage Rating:
- 600 VAC, 250 VDC
- Wire Type:
- 10 to 1/0 AWG (Copper/Aluminum)
- Maximum AC Voltage Rating:
- 600 V
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Motor FLA:
- 4.23 to 16.4 A
- Trip Setting:
- 55 to 180 A
- Frame Type:
- ED
- Catalog:
- SiemensAG_01698_9_111_CAT.pdf
MSRP $3,146.00Surplus $422.99 -
Siemens HGB3K025B Molded Case Breakers (MCCBs)
MSRP $295.77Surplus $357.61SKU: C15-12054 Brand: Siemens MPN: HGB3K025B UPC: 804766339899 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-12054
- Short Description:
- BRKR HGB 25A 3P 480V 35K LD LUG
- Country of Origin:
- MEX
- Number of Poles:
- 3
- Interrupting Rating:
- 22 kA at 600 Star/347 VAC
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, High Breaking Capacity
- Catalog:
- SiemensAG_01796_7_7_7_34_CAT.pdf
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Current Rating:
- 25 A
- Approval:
- UL 489
- Application:
- Lighting, Distribution
MSRP $295.77Surplus $357.61 -
Siemens LGB3B025B Molded Case Breakers (MCCBs) EA
MSRP $3,200.00Surplus $927.73SKU: C15-10480 Brand: Siemens MPN: LGB3B025B UPC: 88762122023 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10480
- TS PIK:
- 125266287
- Current Rating:
- 25 A
- Catalog:
- SiemensAG_10807_1-5_CAT.pdf
- Voltage Rating:
- 600 Star/347 VAC 50/60 Hertz
- Type:
- Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity
- Interrupting Rating:
- 14 kA at 600 Star/347 VAC
- Number of Poles:
- 3
- Country of Origin:
- Mexico
- Short Description:
- 240/480 Star/277/600 Star/347 VAC 50/60 Hz, 125/250 VDC, 25 A, 100 kA Interrupt, 3-Pole, Molded Case, Low Vage, Thermal and Fixed Magnetic, Very High Breaking Capacity, Panelboard Circuit Breaker
- Approval:
- UL 489
- Application:
- Lighting, Distribution
- Used On:
- P1/P2/P3/P4/P5 Panelboard
MSRP $3,200.00Surplus $927.73 -
Siemens Q125 Miniature Circuit Breakers (MCBs)
MSRP $17.00Surplus $9.33SKU: C15-4790 Brand: Siemens MPN: Q125 UPC: Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In. Product...- SKU:
- C15-4790
- TS PIK:
- 128015197
- Short Description:
- 120/240 VAC, 25 A, 10 kA, 1-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Type:
- Miniature, Thermal and Fixed Magnetic Trip, Common Trip, Shunt Trip
- Voltage Rating:
- 120 VAC
- Series:
- QP
- Size:
- 1 Inch Width x 3 Inch Depth x 3-1/8 Inch Height
- Mounting:
- Plug-On
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Number of Poles:
- 1
- Data Sheet:
- SiemensAG_06973_1_DATA.pdf
- Terminal Type:
- Load Lug
- Current Rating:
- 25 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Interrupting Rating:
- 10 kA
- Used On:
- Load Center
- Wire Size:
- 14 to 6 AWG (Copper/Aluminum)
- Country of Origin:
- Mexico
MSRP $17.00Surplus $9.33 -
Siemens Q325 Other Circuit Breakers Q 3P 25A 240V 50/60Hz 3Ph EA
MSRP $622.50Surplus $79.80Siemens Q325 Other Circuit Breakers Q 3P 25A 240V 50/60Hz 3Ph EA​ ARCA SKU: C15-4735 Brand: Siemens MPN: Q325 UPC: 783643156753 Shipping Weight: 0.95 Shipping Height: 3.00 In. Shipping...- SKU:
- C15-4735
- Type:
- Thermal Magnetic
- Type:
- Common Trip
- Approval:
- UL 489
- Size:
- 3 Inch Width x 3 Inch Depth x 3 Inch Height
- Volts:
- 240 V
- Amps:
- 32 A
- Used On:
- Load Centre Main
- Used On:
- Feeder
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 10 kA
- Short Description:
- 240 VAC, 25 A, 10 kA, 3-Pole, 14 to 6 AWG Copper/Aluminum, Load Lug Terminal, Plug-In Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Data Sheet:
- SiemensAG_07059_1_DATA.pdf
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Current Rating:
- 25 A
- Voltage Rating:
- 240 V
- Number of Poles:
- 3
- Country of Origin:
- Mexico
MSRP $622.50Surplus $79.80
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.
