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Westinghouse JB31500SM - Molded Case Breaker 250A 600V

Westinghouse
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Westinghouse JB31500SM is a 3-pole molded case circuit breaker from the AB DE-ION family, designed for instantaneous magnetic-only protection in low voltage distribution systems. It is rated for 250A continuous current at up to 600V AC, with an interrupting capacity of 22kA at 480V AC. The unit features a bolt-on connection type, weighs 19 lb, and is constructed for fixed mounting in industrial environments. It complies with IEC 60947-2 standards for robust interrupting performance and durable construction. This breaker is suitable for industrial and commercial applications requiring reliable short circuit protection without thermal overload sensing.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Part Number: JB31500SM
  • Type: Molded Case Circuit Breaker
  • Family: AB DE-ION
  • Type: JB
  • Amperage: 250 A
  • Voltage Rating: 600 V AC
  • Number of Poles: 3
  • Phase: 3
  • Functions: I - Instantaneous
  • Protection: Magnetic Only
  • AIC Rating: 22kA@480V
  • Connection: Bolt-On
  • Mounting Type: Fixed
  • Weight: 19 lb
  • Standards: IEC 60947-2 Compliant