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Eaton LDB3350X - Molded Case Circuit Breaker 350A 3-Pole

Cutler Hammer
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Eaton LDB3350X is a Series C molded case circuit breaker from the LDB type family, designed for reliable overcurrent protection in demanding electrical environments. It is a three-pole, bolt-on unit rated at 350A with a voltage rating of 600VAC and 250VDC, featuring a thermal magnetic protection system with LI (Long-Time and Instantaneous) trip functions. The breaker weighs 25 lb and is built on an L Frame with aluminum terminals, offering a high interrupt capacity of 35kA at 480VAC. It is UL 489 certified for compliance with industry safety standards. This circuit breaker is suitable for industrial and commercial power distribution systems requiring robust, fixed-trip protection.

Key Features & Specifications
  • Type: Molded Case
  • Family: Series C
  • Type: LDB
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 35kA@480V
  • Phase: 3
  • Current Rating: 350A
  • Weight: 25 lb
  • Amperage rating: 350A
  • Voltage rating: 600VAC / 250VDC
  • Three-pole configuration
  • L-frame construction
  • Fixed thermal and fixed magnetic trip unit
  • 65 kAIC interrupt rating at 240VAC
  • 35 kAIC interrupt rating at 480VAC
  • Aluminum terminals
  • 50/60 Hz frequency rating
  • UL 489 certified