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Eaton MD2300 - Molded Case Circuit Breaker 300A 600V 2-Pole

Cutler Hammer
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Eaton MD2300 is a 2-pole molded case circuit breaker from the Series C family, designed for LI (Long-Time and Instantaneous) protection in industrial power distribution systems. It is rated for 600V AC, 300A continuous current, with a 50kA interrupting capacity at 480V, and operates as a single-phase, thermal-magnetic device with feed-thru connection. Weighing 31 lb, this Type MD breaker features a compact molded case construction suitable for panelboard and switchboard installations. It complies with UL 489 and NEMA AB-1 standards for overcurrent protection. Typical applications include motor control centers, lighting panels, and feeder circuits in manufacturing and commercial facilities.

Key Features & Specifications
  • Type: Molded Case, Series C, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 2
  • Phase: 1
  • Connection: Feed-Thru
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 50kA@480V
  • Weight: 31 lb
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial power distribution, motor control centers, lighting panels