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Eaton MDLB3350W - Molded Case Circuit Breaker 350A 600V

Cutler Hammer
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Eaton MDLB3350W is a three-pole Series C molded case circuit breaker designed for overcurrent protection in commercial and industrial power distribution systems. It carries a 350A current rating with a 600V AC voltage rating and provides LI (Long-Time and Instantaneous) protection through a thermal magnetic trip unit. The unit weighs 33 lb, features an M Frame size with bolt-on connection, and offers an interrupting rating of 50 kAIC at 480V AC. This breaker is UL Listed and operates at 50/60 Hz, making it suitable for heavy-duty applications requiring reliable circuit interruption.

Key Features & Specifications
  • Type: Molded Case
  • Manufacturer: Eaton
  • Family: Series C
  • Type: MDLB
  • Weight: 33 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • Voltage Rating: 600V AC
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 50 kAIC at 480V AC
  • Phase: 3
  • Current Rating: 350A
  • Interrupt Rating: 65 kAIC at 240V AC
  • Frequency Rating: 50/60 Hz
  • Mounting Type: Standard DIN rail or panel mount
  • Tripping Unit: Fixed thermal, fixed magnetic
  • Certifications: UL Listed


Additional Info: This item does not include Lugs. If you would like lugs please reach out to a sales rep with wiring specs and we can help you with the lugs part number.