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Eaton HLDB3300C - Molded Case Circuit Breaker 300A 600V 3-Pole

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Eaton HLDB3300C is a 300A, 3-pole molded case circuit breaker from the Series C L-frame family, designed for overcurrent protection in industrial power distribution systems. It operates at 600V AC with a 65kA interrupting capacity at 480V AC and 100kA at 240V AC, utilizing a thermal magnetic trip mechanism with fixed long-time and instantaneous (LI) functions. The unit weighs 25 lb and features a feed-thru connection with aluminum line and load terminals, supporting 50/60 Hz applications in a fixed mounting configuration. This breaker is UL listed, ensuring compliance with industry safety standards for commercial and industrial environments. It is suitable for protecting branch circuits and main feeders in manufacturing plants, commercial buildings, and heavy machinery installations.

Key Features & Specifications
  • Manufacturer: Eaton
  • Item Subcategory: Molded Case
  • Family: Series C
  • Type: HLDB
  • Weight: 25 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Voltage Rating: 600 V AC
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • AIC Rating: 65 kAIC at 480 VAC, 100 kAIC at 240 VAC
  • Phase: 3
  • Current Rating: 300 A
  • Amperage Rating: 300 A
  • Number of Poles: 3
  • Frame Type: L-frame
  • Trip Type: Fixed Thermal / Fixed Magnetic
  • Interrupt Rating: 100 kAIC at 240 VAC, 65 kAIC at 480 VAC
  • Terminal Material: Aluminum
  • Frequency: 50/60 Hz
  • Certifications: UL Listed
  • Mounting Type: Fixed