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Westinghouse HMC3800FM - Molded Case 800A Magnetic Only Breaker

Westinghouse
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Westinghouse HMC3800FM - Molded Case 800A Magnetic Only Breaker The Westinghouse HMC3800FM is a 3-pole molded case circuit breaker from the Seltronic family, designed for instantaneous magnetic-only protection in industrial power distribution systems. It is rated for 600V AC and 800A continuous current, with an interrupting capacity of 50kA at 480V AC. This bolt-on unit weighs 38 lb and features a compact molded case construction for panelboard or switchboard installation. It complies with applicable UL and NEMA standards for overcurrent protection in commercial and industrial environments. Typical applications include motor control centers, feeder circuits, and high-capacity branch circuits requiring selective coordination.

Key Features & Specifications
  • Type: Molded Case, Seltronic family, HMC series
  • Voltage Rating: 600V AC
  • Current Rating: 800A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Magnetic Only (Instantaneous trip)
  • AIC Rating: 50kA @ 480V AC
  • Functions: I - Instantaneous
  • Weight: 38 lb
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial power distribution, motor control, feeder protection


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