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Eaton HKDDC3400 - Molded Case 400A 600V 3-Pole Breaker

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Eaton HKDDC3400 is a 3-pole molded case circuit breaker from the Series C family, designed for thermal magnetic protection in industrial power distribution systems. It is rated for 400A continuous current at 600VAC with a 42kA interrupting capacity at 600V, providing LI (Long-Time and Instantaneous) trip functions. The unit features a K-frame construction, bolt-on connection, and compact dimensions of 4.1 inches in depth, 5.5 inches in height, and 5.5 inches in width, weighing 3 lb. This breaker is UL 489 certified for compliance with North American safety standards and is manufactured in the Dominican Republic. Typical applications include motor control centers, switchboards, and panelboards requiring reliable overcurrent protection in three-phase systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, LI (Long-Time and Instantaneous) trip
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 4.1 in x 5.5 in x 5.5 in (Length/Depth x Height x Width)
  • Standards: UL 489
  • Applications: Industrial power distribution, motor control centers, switchboards
  • Poles: 3
  • Connection: Bolt-On
  • AIC rating: 42kA@600V
  • Phase: 3
  • Frame Size: K Frame
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Manufacturer: Eaton
  • Family: Series C
  • Country of Origin: Dominican Republic
  • Weight: 3 lb


Product Identification
  • UPC: 782114206720
  • GTIN: 00782114206720