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Westinghouse JB32250SMW - Molded Case Circuit Breaker 250A 600V 3-Pole

Westinghouse
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Westinghouse JB32250SMW is a three-pole molded case circuit breaker from the AB DE-ION family, designed for instantaneous magnetic-only overcurrent protection in industrial power distribution systems. It is rated for 250 amperes at 600 volts AC, with a 22kA interrupting capacity at 480VAC, and features a bolt-on connection for secure panel mounting. The unit weighs 19 lb and is constructed as a Type JB breaker with a three-phase configuration, providing dependable short-circuit protection without thermal elements. This breaker complies with UL listing standards and Federal Specification W-C-375b Class 19a, ensuring reliable performance in low voltage systems. It is typically applied in industrial and commercial power distribution panels requiring magnetic-only trip protection for motor circuits and other high-inrush loads.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Item Subcategory: Molded Case
  • Family: AB DE-ION
  • Type: JB
  • Weight: 19 lb
  • Functions: I - Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Magnetic Only
  • AIC rating: 22kA@480V
  • Phase: 3
  • Current Rating: 250A
  • Amperage Rating: 250 Amps
  • Voltage Rating: 600 Volts AC
  • Number of Poles: 3 Pole
  • Trip Type: Thermal Magnetic
  • Breaker Type: Molded Case
  • UL Listed Interrupting Rating: 15,000 Amps Asymmetrical at 600VAC
  • Federal Specification: W-C-375b Class 19a
  • Continuous Rating at 40 degrees C