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Cutler Hammer HKD3300 - 300A Molded Case Breaker (65kA AIC, 600V)

Cutler Hammer
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Cutler Hammer HKD3300 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in demanding three-phase industrial power systems. It features a 300A continuous current rating and a 600V AC voltage rating, housed within a compact, durable frame measuring 4.1" x 5.5" x 5.5" and weighing 11.5 lb. This thermal-magnetic breaker is CSA Certified, IEC Rated, and UL Listed, ensuring compliance with key industry standards for safety and performance. Its 65kA interrupting rating at 480V and feed-thru connection make it suitable for integration into motor control centers, switchboards, and enclosed control panels from major manufacturers like Allen-Bradley and Eaton.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Standard Trip (LI - Long-Time and Instantaneous)
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Frame Size: 400A/K
  • AIC Rating: 65kA @ 480V AC
  • Poles: 3
  • Phase Connection: 3-Phase (ABC)
  • Connection Type: Feed-Thru
  • Terminal Connection: Line/Load Lug
  • Wire Size (MCM): 250 MCM (Min. and Max.)
  • Dimensions: 4.1 in (D) x 5.5 in (H) x 5.5 in (W)
  • Weight: 11.5 lb
  • Operating Temperature: -4°F to 158°F (-20°C to 70°C)
  • Standards & Certification: UL Listed, CSA Certified, IEC Rated
  • Compatible Panel Types: Allen Bradley MCC, Eaton MCC, Rockwell Automation Enclosed Control, Switchboard, Westinghouse
  • Family: Series C
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 786679319369
  • GTIN: 00786679319369