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Westinghouse JB31750M - Molded Case 250A 600V 3-Pole

Westinghouse
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Westinghouse JB31750M is a 3-pole molded case circuit breaker from the AB DE-ION family, designed for instantaneous magnetic-only protection in industrial power systems. It is rated for 600V AC and 250A, with a bolt-on connection and a 22kA interrupting capacity at 480V AC. Weighing 19 lb, this Type JB unit features a fixed mounting configuration and a J frame construction for robust performance. It complies with UL listing standards for reliable overcurrent protection. This breaker is suited for motor control centers and distribution panels requiring high-fault current handling in three-phase applications.

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: 175 Amps
  • Voltage Rating: 600 VAC
  • Poles: 3
  • Trip Unit: Thermal Magnetic
  • Mounting Type: Fixed
  • Interrupt Rating: 25,000 A Symmetrical at 600 VAC
  • Load Side Lugs
  • Series/Frame: J Frame
  • UL Listed