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Westinghouse JB31500M - Molded Case 250A 600V 3-Pole

Westinghouse
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The Westinghouse JB31500M is a molded case circuit breaker from the AB DE-ION family, designed for instantaneous magnetic-only protection of industrial electrical systems. This three-pole, three-phase unit is rated for 600V AC with a continuous current rating of 250A and an interrupting capacity of 22kA at 480V. The breaker features a bolt-on connection and weighs 19 lb, constructed for robust performance in demanding environments. It complies with industry standards for overcurrent protection, ensuring reliable operation in motor control centers and distribution panels. Typical applications include heavy machinery, manufacturing plants, and commercial power distribution systems where instantaneous trip response is critical.

Key Features & Specifications
  • Type: Molded Case, AB DE-ION Family
  • Voltage Rating: 600V
  • Current Rating: 250A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Magnetic Only
  • Functions: I - Instantaneous
  • AIC Rating: 22kA@480V
  • Weight: 19 lb
  • Standards: Industry standard for overcurrent protection
  • Applications: Industrial motor control, distribution panels, heavy machinery


Product Identification
  • Manufacturer: Westinghouse
  • Model: JB31500M
  • Type: JB