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Eaton Cutler Hammer CKD3400Y - 400A Molded Case Circuit Breaker

Cutler Hammer
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Eaton Cutler Hammer CKD3400Y is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 400A continuous current rating and a 600V AC voltage rating, housed within a compact K-frame measuring 6" x 6.3" x 7" and weighing 12 lb for robust construction. The breaker utilizes a thermal-magnetic trip unit with Long-time and Instantaneous (LI) protection functions and offers a 35kA interrupting capacity at 480V, complying with relevant industry standards for safety and performance. Its three-pole, bolt-on connection design makes it suitable for installation in panelboards and switchboards to protect feeders and branch circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Series C, CKD Type, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 6" H x 6.3" W x 7" D
  • Weight: 12 lb
  • Standards: Designed to meet applicable UL and IEC standards
  • Applications: Industrial power distribution, panelboards, switchboards, feeder and branch circuit protection
  • Phase: 3
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI (Long-time and Instantaneous)
  • Frame Size: K Frame
  • AIC Rating: 35kA @ 480V AC