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Eaton DA3400Y - Molded Case Circuit Breaker 400A 600V 3-Pole

Cutler Hammer
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The Eaton Cutler Hammer DA3400Y is a 3-pole molded case circuit breaker from the AB DE-ION family, designed for thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 600V AC, 400A continuous current, and an interrupting capacity of 30kA at 480V, with a bolt-on connection for secure installation. This unit weighs 20 lb and features a compact frame construction suitable for industrial panelboards. It complies with applicable UL and NEMA standards for overcurrent protection. Typical applications include feeder and main circuit protection in commercial and industrial power distribution systems.

Key Features & Specifications
  • Type: Molded Case
  • Voltage Rating: 600V
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 30kA@480V
  • Functions: LI - Long-Time and Instantaneous
  • Family: AB DE-ION
  • Weight: 20 lb
  • Standards: UL, NEMA


Product Identification
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