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Eaton Cutler-Hammer HKD3300Y - 300A Molded Case Circuit Breaker

Cutler Hammer
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Eaton Cutler-Hammer HKD3300Y is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 300A continuous current rating and a 600V AC voltage rating, housed within a durable K-frame construction with a bolt-on connection for secure installation. This thermal magnetic breaker utilizes long-time and instantaneous (LI) trip functions and offers an interrupting capacity of 65kA at 480V AC, ensuring compliance with rigorous industry standards for electrical safety and performance. Its robust design is engineered for demanding applications such as industrial control panels, main distribution boards, and large motor branch circuits.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Series C Family, HKD Type
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Frame Size: K Frame
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • AIC Rating: 65kA @ 480V AC
  • Weight: 13 lb


Product Identification
  • Manufacturer Part Number: HKD3300Y