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Eaton HLDB3400W - Molded Case Circuit Breaker 400A 600V

Cutler Hammer
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Eaton HLDB3400W is a three-pole molded case circuit breaker from the Series C family, engineered for primary protection in industrial and commercial power distribution systems. This L-frame unit delivers 400A of continuous current at 600V AC, utilizing a thermal magnetic trip mechanism with LI (Long-Time and Instantaneous) functions for reliable overcurrent protection. The breaker features a bolt-on connection, weighs 25 lb, and is built for robust performance in demanding environments. It complies with UL 489 standards and provides a high interrupting capacity of 65kA at 480V AC. Typical applications include main and feeder circuits in manufacturing plants, commercial buildings, and heavy equipment installations where high fault current protection is essential.

Key Features & Specifications
  • Manufacturer: Eaton
  • Item Subcategory: Molded Case
  • Family: Series C
  • Type: HLDB
  • Weight: 25 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 400A
  • Interrupt rating: 100kAIC at 240V AC
  • Frequency rating: 50/60 Hz
  • Dimensions: 8.25 in height, 8.25 in width, 4.06 in depth
  • Without terminals