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Eaton MD3350 - Molded Case 350A 600V 3-Pole Breaker

Cutler Hammer
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Eaton MD3350 is a three-pole molded case circuit breaker from the Series C family, designed for thermal-magnetic overcurrent protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 600V AC, 350A continuous current, and provides a 50kA interrupting capacity at 480V, supporting three-phase systems via feed-thru connections. Weighing 34 lb, this MD-type breaker features a compact molded case construction suitable for industrial panelboards and switchboards. It complies with UL and NEMA standards for reliable performance in commercial and industrial power distribution applications. Typical uses include motor control centers, lighting panels, and main service disconnects in manufacturing facilities.

Key Features & Specifications
  • Type: Molded Case, Series C, MD Frame
  • Voltage Rating: 600V AC
  • Current Rating: 350A
  • Poles: 3
  • Phase: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 50kA@480V
  • Weight: 34 lb