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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Crouse-Hinds HMCP250W5 Motor Circuit Protector (MCPs)
MSRP $3,115.23Surplus $1,191.52SKU: C15-7306 Brand: Crouse-Hinds MPN: HMCP250W5 UPC: Shipping Weight: 9.25 lbs. Shipping Height: 7.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00 In...- SKU:
- C15-7306
- TS PIK:
- 115281312
- Frame Type:
- J
- Catalog:
- Eaton_46579_V4T2_254_V4T2_255_V4T2_394_V4T2_395_CAT.pdf
- Number of Poles:
- 3
- Short Description:
- 600 VAC, 250 VDC, 250 A, 3-Pole, 1250 to 2500 A Trip, NEMA 5, Line/Load Terminal, J Frame, Molded Case, Magnetic, Motor Circuit Protector
- Maximum DC Voltage Rating:
- 250 V
- Maximum AC Voltage Rating:
- 600 V
- Terminal Type:
- Not Included
- Current Rating:
- 250 A
- Type:
- Molded Case, Magnetic
- CAD Drawings:
- Eaton_00054_1-9_CAD.pdf
- Voltage Rating:
- 600 VAC, 250 VDC
- Installation/Operator:
- Eaton_00176_INST.pdf
- Series:
- C, HMCP
MSRP $3,115.23Surplus $1,191.52 -
Crouse Hinds HMCP250W5C Motor Circuit Protector (MCPs) EA
MSRP $3,137.51Surplus $1,689.10SKU: C15-7882 Brand: Crouse-Hinds MPN: HMCP250W5C UPC: Shipping Weight: 9.70 lbs. Shipping Height: 8.00 In. Shipping Length: 13.00 In. Shipping Width: 8.00 In...- SKU:
- C15-7882
- TS PIK:
- 115927046
- Voltage Rating:
- 600 VAC, 250 VDC
- Frame Type:
- J
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Short Description:
- 600 VAC, 250 VDC, 250 A, 1250 to 2500 A Trip, 96.2 to 204 A FLA, 3-Pole, NEMA 5, Non-Aluminum Line and Load Terminal, J Frame, Magnetic, Molded Case, Motor Circuit Protector
- Terminal Type:
- Non-Aluminum Line and Load Terminal
- Size:
- 4.06 Inch Width x 4.13 Inch Depth x 10 Inch Height
- Series:
- C, HMCP
- Catalog:
- Eaton_27487_V4T2_394_V4T2_395_V4T2_401_CAT.pdf
- Maximum DC Voltage Rating:
- 250 V
- Type:
- Molded Case, Magnetic
- Maximum AC Voltage Rating:
- 600 V
- Country of Origin:
- Dominican Republic
- Approval:
- UL 489, CSA C22.2, CE
- Motor FLA:
- 96.2 to 204 A
- Starter Size:
- NEMA 5
- Trip Setting:
- 1250 to 2500 A
MSRP $3,137.51Surplus $1,689.10 -
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Eaton HMCP250A5C Molded Case Breakers (MCCBs)
MSRP $2,739.43Surplus $739.65SKU: C15-19189 Brand: Eaton MPN: HMCP250A5C UPC: 78667934206 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19189
- Starter Size:
- NEMA 5
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Type:
- Magnetic
- Installation/Operator:
- Eaton_00176_INST.pdf
- Terminal Type:
- Non-Aluminum Line and Load
- Approval:
- UL 489, CSA C22.2, CE
- CAD Drawings:
- Eaton_00054_1-9_CAD.pdf
- Frame Type:
- J
- Short Description:
- 600 VAC, 250 VDC, 250 A, 350 to 700 A Trip, 3-Pole, J Frame, Size NEMA 5, Non-Aluminum Line and Load Terminal, Molded Case, Magnetic, Circuit Breaker Motor Protection
- Series:
- C, HMCP
- Size:
- 4.13 Inch Width x 4.06 Inch Depth x 10 Inch Height
- Catalog:
- Eaton_03771_V4T2_360_V4T2_361_V4T2_367_CAT.pdf
- Maximum AC Voltage Rating:
- 600 V
- Trip Setting:
- 350 to 700 A
- Voltage Rating:
- 600 VAC, 250 VDC
- Maximum DC Voltage Rating:
- 250 V
MSRP $2,739.43Surplus $739.65 -
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Eaton HMCP250K5C Molded Case Breakers (MCCBs)
MSRP $3,005.00Surplus $486.81SKU: C15-19192 Brand: Eaton MPN: HMCP250K5C UPC: 78667915105 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-19192
- Frame Type:
- J
- Voltage Rating:
- 600 VAC, 250 VDC
- Starter Size:
- NEMA 5
- Maximum DC Voltage Rating:
- 250 V
- Trip Setting:
- 1000 to 2000 A
- Number of Poles:
- 3
- Type:
- Magnetic
- Maximum AC Voltage Rating:
- 600 V
- Catalog:
- Eaton_03771_V4T2_360_V4T2_361_V4T2_367_CAT.pdf
- Current Rating:
- 250 A
- Installation/Operator:
- Eaton_00176_INST.pdf
- Size:
- 4.13 Inch Width x 4.06 Inch Depth x 10 Inch Height
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY MOTOR PROTECTION, MOTOR CIRCUIT PROT
- CAD Drawings:
- Eaton_00054_1-7_CAD.pdf
- Terminal Type:
- Non-Aluminum Line and Load
- Approval:
- UL 489, CSA C22.2, CE
MSRP $3,005.00Surplus $486.81 -
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Eaton HMCP250L5C Molded Case Breakers (MCCBs)
MSRP $2,532.00Surplus $1,683.78SKU: U00-8206 Brand: Eaton MPN: HMCP250L5C UPC: 78667915106 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8206
- Short Description:
- 600 VAC, 250 VDC, 250 A, 1125 to 2250 A Trip, 86.6 to 183.6 A FLA, 3-Pole, NEMA 5, Non-Aluminum Line and Load Terminal, J Frame, Magnetic, Molded Case, Motor Circuit Protector
- Series:
- C, HMCP
- Size:
- 4.06 Inch W x 4.13 Inch D x 10 Inch H
- Maximum AC Voltage Rating:
- 600 VAC
- Frame Type:
- J
- Catalog:
- Eaton_27487_V4T2_394_V4T2_395_V4T2_401_CAT.pdf
- Type:
- Molded Case, Magnetic
- Starter Size:
- NEMA 5
- Terminal Type:
- Non-Aluminum Line and Load Terminal
- Approval:
- UL 489, CSA C22.2, CE
- Trip Setting:
- 1125 to 2250 A
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Voltage Rating:
- 600 VAC, 250 VDC
- Maximum DC Voltage Rating:
- 250 VDC
MSRP $2,532.00Surplus $1,683.78 -
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Eaton HMCP250W5C Motor Circuit Protector (MCPs)
MSRP $3,137.51Surplus $2,154.60SKU: C15-6863 Brand: Eaton MPN: HMCP250W5C UPC: 78667915036 Shipping Weight: 9.80 lbs. Shipping Height: 7.00 In. Shipping Length: 12.00 In. Shipping Width: 7.00 In...- SKU:
- C15-6863
- Frame Type:
- J-K
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Type:
- Molded Case Magnetic
- Maximum AC Voltage Rating:
- 600 V
- Maximum DC Voltage Rating:
- 250 V
- Terminal Type:
- Non-Aluminum Line and Load Terminal
- Size:
- 4.06 Inch Width x 4.13 Inch Depth x 10 Inch Height
- Short Description:
- Eaton molded case circuit breaker accessory motor protection, Motor circuit protector, 250 A, Three-pole, Frame J-K, 1250-2500 A, 600 V, 250 Vdc, Series C, Line and load, Non-aluminum
- Catalog:
- Eaton_27487_V4T2_394_V4T2_395_V4T2_401_CAT.pdf
- Data Sheet:
- Eaton_14356_1_2_SPEC.pdf
- Series:
- C, HMCP
MSRP $3,137.51Surplus $2,154.60 -
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Siemens FXD63A250 Molded Case Breakers (MCCBs)
MSRP $13,540.00Surplus $1,158.87SKU: U00-8127 Brand: Siemens MPN: FXD63A250 UPC: 78364321228 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8127
- Catalog:
- SiemensAG_01698_17_78_17_82_17_108_17_111_CAT.pdf
- Trip Setting:
- 1110 to 2500 A
- Maximum AC Voltage Rating:
- 600 V
- Short Description:
- 600 VAC 50/60 Hz, 250 VDC, 250 A, 35 kA at 480 VAC, 1100 to 2500 A Instantaneous Trip, 3-Pole, FD Frame, Magnetic, Non-Interchangeable Trip, ETI Motor, Molded Case Circuit Breaker
- Installation/Operator:
- SiemensAG_00224_INST.pdf
- Series:
- FXD6
- Maximum DC Voltage Rating:
- 250 V
- Approval:
- UL 489
- Type:
- Magnetic
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Country of Origin:
- MEX
MSRP $13,540.00Surplus $1,158.87 -
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Square D KA36250 Molded Case Breakers (MCCBs) EA
MSRP $5,500.00Surplus $644.97SKU: C15-7082 Brand: Square D MPN: KA36250 UPC: Shipping Weight: 8.60 lbs. Shipping Height: 6.00 In. Shipping Length: 15.00 In. Shipping Width: 9.00 In. Product...- SKU:
- C15-7082
- Size:
- 4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
- Type:
- Molded Case, Thermal Magnetic, Adjustable
- Number of Poles:
- 3
- Interrupting Rating:
- 42 kA at 240 VAC, 25 kA at 480 VAC, 22 kA at 600 VAC
- Current Rating:
- 250 A
- Data Sheet:
- SchneiderElectric-SquareD_04818_1_DATA.pdf
- Short Description:
- 600 VAC, 250 VDC, 250 A, 22 kA, 3-Pole, K-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Voltage Rating:
- 600 VAC, 250 VDC
- Catalog:
- SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
- Series:
- kA
- Frame Type:
- K
- Approval:
- UL
- Maximum AC Voltage Rating (V):
- 600
- Maximum DC Voltage Rating (V):
- 250
MSRP $5,500.00Surplus $644.97 -
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Square D KAL36250 Molded Case Breakers (MCCBs)
MSRP $4,222.00Surplus $1,139.94SKU: C15-16734 Brand: Square D MPN: KAL36250 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-16734
- Short Description:
- 600 VAC, 250 VDC, 250 A, 22 kA, 3-Pole, K-Frame, Individually Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Interrupting Rating:
- 42 kA at 240 VAC, 25 kA at 480 VAC, 22 kA at 600 VAC, 10 kA at 125/250 VDC
- Number of Poles:
- 3
- Size:
- 4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
- Series:
- kAL
- Terminal Type:
- Lug
- Type:
- Thermal Magnetic
- Catalog:
- SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
- Approval:
- UL 489, CSA C22.2, IEC 60947-2, Federal Specification W-C-375B/GEN
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 250 A
- Frame Type:
- K
MSRP $4,222.00Surplus $1,139.94 -
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Square D KAL3625026M Molded Case Breakers (MCCBs)
MSRP $3,531.00Surplus $953.37SKU: C15-16736 Brand: Square D MPN: KAL3625026M UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-16736
- Terminal Type:
- Lug
- Short Description:
- 600 VAC, 250 VDC, 250 A, 22 kA, 3-Pole, K-Frame, Individually Mount, Thermal Magnetic, Motor Circuit Protector
- Size:
- 4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
- Interrupting Rating:
- 42 kA at 240 VAC, 25 kA at 480 VAC, 22 kA at 600 VAC, 10 kA at 125/250 VDC
- Series:
- 655/825/660, kAL
- Frame Type:
- K
- Catalog:
- SchneiderElectric-SquareD_00935_11_21_11_22_CAT.pdf
- Type:
- Thermal Magnetic
- Current Rating:
- 250 A
- Approval:
- UL 489, CSA C22.2, IEC 60947-2, Federal Specification W-C-375B/GEN
- Number of Poles:
- 3
- Voltage Rating:
- 600 VAC, 250 VDC
MSRP $3,531.00Surplus $953.37 -
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Square D KAL3625031M Molded Case Breakers (MCCBs)
MSRP $2,457.00Surplus $663.39SKU: C15-16739 Brand: Square D MPN: KAL3625031M UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-16739
- Short Description:
- 600 VAC, 250 VDC, 250 A, 22 kA, 3-Pole, K-Frame, Individually Mount, Thermal Magnetic, Motor Circuit Protector
- Current Rating:
- 250 A
- Type:
- Thermal Magnetic
- Terminal Type:
- Lug
- Number of Poles:
- 3
- Interrupting Rating:
- 42 kA at 240 VAC, 25 kA at 480 VAC, 22 kA at 600 VAC, 10 kA at 125/250 VDC
- Voltage Rating:
- 600 VAC, 250 VDC
- Size:
- 4.5 Inch Width x 4.75 Inch Depth x 8 Inch Height
- Frame Type:
- K
- Approval:
- UL 489, CSA C22.2, IEC 60947-2, Federal Specification W-C-375B/GEN
- Catalog:
- SchneiderElectric-SquareD_00935_11_21_11_22_CAT.pdf
- Series:
- 655/825/660, kAL
MSRP $2,457.00Surplus $663.39 -
Square D KC34250 Molded Case Breakers (MCCBs)
MSRP $20,000.00Surplus $922.01SKU: C15-7094 Brand: Square D MPN: KC34250 UPC: Shipping Weight: 9.05 lbs. Shipping Height: 6.00 In. Shipping Length: 11.00 In. Shipping Width: 5.00 In. Product...- SKU:
- C15-7094
- Series:
- 655/825/660, KC
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 250 A
- Short Description:
- 600 VAC, 250 VDC, 250 A, 3-Pole, K-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Interrupting Rating:
- 100 kA at 240 VAC, 65 kA at 480 VAC
- Catalog:
- SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
- Type:
- Molded Case, Thermal Magnetic, Main
- Number of Poles:
- 3
- Trip Setting:
- 1250 to 2500 A
- Application:
- Construction
- Used On:
- I-Line Panelboard and Switchboard
- Installation:
- Plug-On
- Approval:
- UL, CSA, IEC
- Country of Origin:
- Mexico
MSRP $20,000.00Surplus $922.01 -
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Square D KH36250 Molded Case Breakers (MCCBs)
MSRP $3,491.67Surplus $1,132.78SKU: U00-8261 Brand: Square D MPN: KH36250 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- U00-8261
- Voltage Rating:
- 600 VAC, 250 VDC
- Series:
- 655/825/660, KH
- Used On:
- I-Line Panelboard and Switchboard
- Installation:
- Plug-On
- Interrupting Rating:
- 65 kA at 240 VAC, 35 kA at 480 VAC, 25 kA at 600 VAC
- Short Description:
- 600 VAC, 250 VDC, 250 A, 25 kA, 3-Pole, K-Frame, I-Line Mount, Thermal Magnetic, Molded Case Circuit Breaker
- Trip Setting:
- 1250 to 2500 A
- Type:
- Molded Case, Thermal Magnetic, Main
- Application:
- Construction
- Catalog:
- SchneiderElectric-SquareD_00935_11_12_11_13_CAT.pdf
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Approval:
- UL, CSA, IEC
MSRP $3,491.67Surplus $1,132.78 -
Square D LA36250 Molded Case Breakers (MCCBs)
MSRP $6,900.00Surplus $4,588.50SKU: U00-8281 Brand: Square D MPN: LA36250 UPC: 78590142620 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- U00-8281
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
- Type:
- Thermal Magnetic
- Data Sheet:
- SchneiderElectric-SquareD_47512_1_2_DATA.pdf
- Interrupting Rating:
- 22 kA at 600 VAC
- Approval:
- UL, CSA
- Number of Poles:
- 3
- Current Rating:
- 250 A
- Short Description:
- 600 VAC, 250 VDC, 250 A, 22 kA, 3-Pole, L-Frame, ABC Phase, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
- Series:
- LA
- Trip Setting:
- 1250 to 2500 A
- Voltage Rating:
- 600 VAC, 250 VDC
- Prop 65 Warning:
- Yes
- Used On:
- I-Line Panelboard and Switchboard
- Application:
- Power Distribution
- Country of Origin:
- Mexico
MSRP $6,900.00Surplus $4,588.50 -
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Square D LH36250 Molded Case Breakers (MCCBs)
MSRP $6,224.00Surplus $5,880.00SKU: C15-10819 Brand: Square D MPN: LH36250 UPC: 78590133940 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10819
- TS PIK:
- 115345732
- Data Sheet:
- SchneiderElectric-SquareD_47562_1_2_DATA.pdf
- Application:
- Power Distribution
- Approval:
- UL, CSA
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
- Used On:
- I-Line Panelboard and Switchboard
- Trip Setting:
- 1250 to 2500 A
- Installation/Operator:
- SchneiderElectric-Telemecanique_00325_INST.pdf
- Number of Poles:
- 3
- Short Description:
- 600 VAC, 250 VDC, 250 A, 25 kA, 3-Pole, L-Frame, Line Lug Load Terminal, Thermal Magnetic, Panelboard Molded Case Circuit Breaker
- Current Rating:
- 250 A
- Series:
- LH
- Type:
- Thermal Magnetic
- Interrupting Rating:
- 25 kA at 600 VAC
- Voltage Rating:
- 600 VAC, 250 VDC
- Prop 65 Warning:
- Yes
MSRP $6,224.00Surplus $5,880.00 -
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Square D LJA36250U33X Molded Case Breakers (MCCBs)
MSRP $6,941.00Surplus $1,874.07SKU: C15-16853 Brand: Square D MPN: LJA36250U33X UPC: 78590100790 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00...- SKU:
- C15-16853
- Short Description:
- 600 VAC, 250 VDC, 250 A, 25 kA, 3-Pole, L-Frame, ABC Phase, Line Lug Load, Thermal Magnetic, Electronic, Standard, Micrologic 3.3 S, LSI, Panelboard Molded Case Circuit Breaker
- Series:
- LJ
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 250 A
- Number of Poles:
- 3
- Approval:
- UL, CSA
- Type:
- Thermal Magnetic, Electronic, Standard, Micrologic 3.3 S, LSI
- Interrupting Rating:
- 25 kA at 600 VAC, 20 kA at 250 VDC
- Used On:
- I-Line Panelboard and Switchboard
- Data Sheet:
- SchneiderElectric-SquareD_69848_1-3_DATA.pdf
- Application:
- Power Distribution
- Catalog:
- SchneiderElectric-SquareD_32357_9_61_CAT.pdf
MSRP $6,941.00Surplus $1,874.07 -
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Unbranded HMCP250W5C Motor Circuit Protector (MCPs) 250A
MSRP $3,137.51Surplus $896.40Unbranded HMCP250W5C Motor Circuit Protector (MCPs) 250A​ ARCA SKU: C15-8930 Brand: Unbranded MPN: HMCP250W5C UPC: 78667915036 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- C15-8930
- TS PIK:
- 115927046
- Series:
- C, HMCP
- Frame Type:
- J
- Number of Poles:
- 3
- Catalog:
- Eaton_27487_V4T2_394_V4T2_395_V4T2_401_CAT.pdf
- Maximum DC Voltage Rating:
- 250 V
- Voltage Rating:
- 600 VAC, 250 VDC
- Current Rating:
- 250 A
- Short Description:
- 600 VAC, 250 VDC, 250 A, 1250 to 2500 A Trip, 96.2 to 204 A FLA, 3-Pole, NEMA 5, Non-Aluminum Line and Load Terminal, J Frame, Magnetic, Molded Case, Motor Circuit Protector
- Type:
- Molded Case, Magnetic
- Terminal Type:
- Non-Aluminum Line and Load Terminal
- Size:
- 4.06 Inch Width x 4.13 Inch Depth x 10 Inch Height
- Maximum AC Voltage Rating:
- 600 V
MSRP $3,137.51Surplus $896.40
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