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Eaton KD4350W - Molded Case Circuit Breaker 350A 600V

Cutler Hammer
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Eaton KD4350W is a 4-pole molded case circuit breaker from the Series C family, designed for thermal-magnetic overcurrent protection in industrial power distribution systems. It is rated for 350A continuous current at 600VAC/250VDC, with a 35kA interrupting capacity at 480VAC and 65kA at 240VAC, utilizing a K-frame construction with bolt-on connections. The unit weighs 15 lb and features a fixed thermal and fixed magnetic trip unit providing LI (Long-Time and Instantaneous) protection functions, with aluminum line and load terminals. This breaker complies with industry standards for molded case circuit breakers and is suitable for three-phase applications requiring high fault current interruption in commercial and industrial environments.

Key Features & Specifications
  • Manufacturer: Eaton
  • Item Subcategory: Molded Case
  • Family: Series C
  • Type: KD
  • Weight: 15 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: K Frame
  • Voltage Rating: 600 VAC / 250 VDC
  • Poles: 4
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 35kA@480V, 65kA@240V
  • Phase: 3
  • Current Rating: 350 A
  • Trip Unit: Fixed Thermal / Fixed Magnetic
  • Mounting Type: Complete molded case breaker
  • Terminal Material: Aluminum