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MDLB3300W

Culter Hammer
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Eaton MDLB3300W is a 300-amp, 3-pole molded case circuit breaker from the Series C family, designed for LI (Long-Time and Instantaneous) protection in industrial power distribution systems. It operates at 600V AC with a 50kA interrupting capacity at 480V AC and 65kA at 240V AC, supporting 50/60 Hz applications through a fixed thermal magnetic trip unit (T186). The unit weighs 33 lb, features an M Frame size with bolt-on connection, and is built for fixed mounting without included lugs. It is UL Listed and complies with industry standards for reliable overcurrent protection in commercial and industrial environments.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Eaton
  • Family: Series C
  • Type: MDLB
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • Voltage Rating: 600 V
  • Current Rating: 300 A
  • Number of Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 50 kA at 480 VAC, 65 kA at 240 VAC
  • Frequency: 50/60 Hz
  • Mounting Type: Fixed
  • Weight: 33 lb
  • Certifications: UL Listed
  • Additional Info: This item does not include lugs


Eaton MDLB3300W - Molded Case Circuit Breaker 300A 600V