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Westinghouse JB31250M - Molded Case Breaker 250A 600V 3P

Westinghouse
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Westinghouse JB31250M is a molded case circuit breaker from the AB DE-ION family, designed for instantaneous magnetic-only protection against short circuits and high-level faults. It is rated for 600V AC, 250A, and 22kA interrupting capacity at 480V, with a 3-pole, 3-phase configuration. This bolt-on unit weighs 19 lb and features a compact molded case construction for reliable industrial service. It complies with applicable industry standards for overcurrent protection in commercial and industrial power distribution systems. Typical applications include motor control centers, switchboards, and panelboards requiring instantaneous trip response without thermal protection.

Key Features & Specifications
  • Type: Molded Case, Magnetic Only, Instantaneous Trip
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Magnetic Only
  • AIC Rating: 22kA@480V
  • Functions: I - Instantaneous
  • Family: AB DE-ION
  • Weight: 19 lb
  • Additional Info: This item does not include lugs. If you would like lugs please reach out to a sales rep with wiring specs and we can help you with the lugs part number.


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