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JA3150S

Westinghouse
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Westinghouse JA3150S is a 3-pole molded case circuit breaker from the JA Series, designed for reliable overcurrent protection in low-voltage power distribution systems. It is rated for 600V AC and 150A continuous current, utilizing a thermal magnetic trip mechanism with LI (Long-Time and Instantaneous) functions to safeguard against overloads and short circuits. This bolt-on unit weighs 19 lb and features a 225-amp frame with a 150-amp trip setting, offering an interrupting capacity of 22kA at 480V. It complies with industry standards for industrial and commercial electrical panel installations, ensuring robust performance in demanding environments. Typical applications include motor control centers, switchboards, and branch circuit protection in manufacturing facilities and commercial buildings.

Key Features & Specifications
  • Type: Molded Case
  • Family: JA Series
  • Poles: 3
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • Frame Amperage: 225 amps
  • Trip Amperage: 150 amps
  • Interrupt Rating: 22kA at 480V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Phase: 3
  • Weight: 19 lb


Westinghouse JA3150S - Molded Case Circuit Breaker 150A 3-Pole 600V