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
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Siemens ED43B045 Everything Else
MSRP $1,954.00Surplus $521.36SKU: C15-7385 Brand: Siemens MPN: ED43B045 UPC: 783643209428 Shipping Weight: 3.65 lbs. Shipping Height: 6.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In...- SKU:
- C15-7385
- TS PIK:
- 115142958
- Number of Poles:
- 3
- Voltage Rating:
- 480 VAC at 50/60 Hz (UL)
- Series:
- ED4
- Short Description:
- 480 VAC 50/60 Hz, 45 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
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Current Rating:
- 45 A
- Interrupting Rating:
- 65 kA at 240 VAC, 18 kA at 480 VAC (UL)
- Size:
- 3 Inch W x 4.56 Inch D x 6.35 Inch H
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Terminal Type:
- Load Lug
- Approval:
- UL 489, CSA C22.2
- Country of Origin:
- MEX
- Mounting:
- Plug-On
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
MSRP $1,954.00Surplus $521.36 -
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Siemens HED43B045 Molded Case Breakers (MCCBs)
MSRP $4,729.00Surplus $1,276.83SKU: C15-16467 Brand: Siemens MPN: HED43B045 UPC: 78364321015 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-16467
- Interrupting Rating:
- 100 kA at 240 VAC, 42 kA at 480 VAC (UL)
- Type:
- Molded Case, Thermal and Fixed Magnetic
- Series:
- HED4
- Approval:
- UL 489, CSA C22.2
- Country of Origin:
- MEX
- Mounting:
- Plug-On
- Terminal Type:
- Load Lug
- Wire Size:
- 10 to 1/0 AWG (Copper/Aluminum)
- Short Description:
- 480 VAC, 45 A, 42 kA, 3-Pole, 10 to 1/0 AWG Copper/Aluminum, Load Lug Terminal, ED Frame, Thermal Magnetic Trip Unit, Molded Case Circuit Breaker
- Installation/Operator:
- SiemensAG_00313_INST.pdf
- Catalog:
- SiemensAG_01698_17_78-17_80_CAT.pdf
- Number of Poles:
- 3
- Used On:
- P1/P2/P3/P4/P5 Panelboard
- Size:
- 3 Inch W x 4.56 Inch D x 6.35 Inch H
- Voltage Rating:
- 480 VAC at 50/60 Hz (UL)
- Current Rating:
- 45 A
MSRP $4,729.00Surplus $1,276.83 -
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Siemens Q145 Molded Case Breakers (MCCBs)
MSRP $7.50Surplus $2.02SKU: C15-17522 Brand: Siemens MPN: Q145 UPC: 78364316715 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17522
- Voltage Rating:
- 120 VAC at 50/60 Hz
- Approval:
- UL 489, CSA C22.2
- Interrupting Rating:
- 10 kA
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Wire Size:
- 8 to 6 AWG (Copper), 8 to 4 AWG (Aluminum)
- Size:
- 1 Inch W x 3 Inch D x 3-1/8 Inch H
- Country of Origin:
- MEX
- Number of Poles:
- 1
- Short Description:
- 120/240 VAC, 45 A, 10 kA, 1-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Type:
- Thermal and Fixed Magnetic
- Current Rating:
- 45 A
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- Terminal Type:
- Load Lug
- Mounting:
- Plug-On
- Data Sheet:
- SiemensAG_06976_1_DATA.pdf
- Used On:
- Loadcenter
MSRP $7.50Surplus $2.02 -
Siemens Q245 Miniature Circuit Breakers (MCBs)
MSRP $91.50Surplus $26.66SKU: C15-6274 Brand: Siemens MPN: Q245 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6274
- TS PIK:
- 121449811
- Number of Poles:
- 2
- Current Rating:
- 45 A
- Used On:
- Load Center
- Mounting:
- Plug-On
- Series:
- Q
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 10 kA
- Size:
- 3 Inch Width x 3 Inch Depth x 2 Inch Height
- Short Description:
- 120/240 VAC, 45 A, 10 kA Interrupt Rating, 2-Pole, Plug-On, Type QP, Circuit Breaker
- Data Sheet:
- Siemens_02206_1_DATA.pdf
- Country of Origin:
- Mexico
- Approval:
- UL 489
MSRP $91.50Surplus $26.66 -
Contact Us For Quote
Siemens Q345 Miniature Circuit Breakers (MCBs)
MSRP $322.50Surplus $76.03SKU: C15-6277 Brand: Siemens MPN: Q345 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6277
- Interrupting Rating:
- 10 kA
- Size:
- 3 Inch Width x 3 Inch Depth x 3 Inch Height
- Catalog:
- SiemensAG_00562_1_41_1_46_1_47_CAT.pdf
- Number of Poles:
- 3
- Type:
- Thermal Magnetic
- Voltage Rating:
- 240 V
- Short Description:
- 240 VAC, 45 A, 10 kA, 3-Pole, 8 to 6 AWG Copper/8 to 4 AWG Aluminum, Load Lug Terminal, Plug-On Mount, QP Frame, Common Trip, Thermal Magnetic Trip Unit, Miniature Circuit Breaker for Load Center
- Mounting:
- Plug-On
- Current Rating:
- 45 A
- Data Sheet:
- SiemensAG_07065_1_DATA.pdf
- Used On:
- Load Centre Main, Feeder
- Installation/Operator:
- SiemensAG_00215_INST.pdf
- TS PIK:
- 21366646
- Approval:
- UL 489
- Country of Origin:
- MEX
MSRP $322.50Surplus $76.03
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