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Square D HU363EI2 - Molded Case Circuit Breaker 600V 600A 3-Pole

Square D
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Square D HU363EI2 is a heavy-duty industrial circuit breaker designed for overcurrent protection in high-power electrical distribution systems. This unit is rated for 600 volts AC and 600 amps, providing robust fault interruption capabilities. The breaker measures 21.25 inches in height, 10.25 inches in width, and 6.38 inches in depth, with a weight of 10 pounds, and features a molded case construction with a thermal-magnetic trip mechanism. It complies with UL 489 and CSA standards, ensuring reliable performance in demanding environments. Typical applications include main service disconnects, feeder protection, and branch circuit protection in manufacturing plants, data centers, and commercial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600 V AC
  • Current Rating: 600 A
  • Dimensions: 21.25 in (539.75 mm) x 10.25 in (260.35 mm) x 6.38 in (162.05 mm) (H x W x D)
  • Standards: UL 489, CSA
  • Applications: Main service disconnects, feeder protection, branch circuit protection
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 21.25 in x 10.25 in x 6.38 in
  • Phase: 3-phase
  • Voltage: 600 V AC
  • Amperage: 600 A
  • AIC rating: 65 kAIC at 240 V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: On/Off switching, fault interruption
  • Frame Size: HU
  • Trip Type: Thermal-magnetic
  • Panel Type: Distribution panelboard
  • Breaker Type: HU363EI2
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 500 kcmil
  • Metal Type: Copper alloy
  • Panel Style: NEMA 1
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: 600 HP at 480 V
  • Aux Contacts: 1 NO/NC
  • CPT: Not included
  • Full Load Amps: 600 A
  • Dist Voltage: 600 V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 600 A
  • Full Load Amp Minimum: 600 A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 600 A
  • Amperage Minimum: 600 A
  • Nema Rating: NEMA 1
  • Switch Style: Toggle
  • Wire Size: 500 kcmil
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA
  • Compatible Frames: HU series
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: HU
  • Current Rating: 600 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78590161712
  • GTIN: 00785901617129