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Eaton LDB3300Y - 3-Pole 300A Molded Case Circuit Breaker (35kA@480V)

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Eaton LDB3300Y is a 3-pole molded case circuit breaker from the Series C family, designed for thermal-magnetic overcurrent protection with long-time and instantaneous (LI) trip functions. Rated at 300A and 600V AC, it delivers an interrupting capacity of 35kA at 480V AC and operates at 50/60 Hz. The L-frame unit weighs 25 lb, features bolt-on aluminum terminals, and is constructed for fixed thermal and fixed magnetic trip settings. This breaker is UL 489 certified, ensuring compliance with industry safety standards for industrial and commercial power distribution systems.

Key Features & Specifications
  • Manufacturer: Eaton
  • Item Subcategory: Molded Case
  • Family: Series C
  • Type: LDB
  • Weight: 25 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Voltage Rating: 600 VAC
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 35 kAIC at 480 VAC
  • Phase: 3
  • Current Rating: 300 Amp
  • Interrupt Rating: 65 kAIC at 240 VAC
  • Trip Type: Fixed thermal, fixed magnetic (T186)
  • Terminal Material: Aluminum
  • Frequency: 50/60 Hz
  • Certifications: UL 489