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Westinghouse HKA3150 - 3-Pole 150A Molded Case Breaker (600V)

Westinghouse
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Westinghouse HKA3150 is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial panel mount applications. It is rated for 150A at 600VAC and provides LI (Long-Time and Instantaneous) protection functions via a thermal magnetic trip unit. This bolt-on breaker weighs 19 lb and features a KA frame construction with standard pressure terminals compatible with aluminum or copper conductors. It is UL certified and carries a 35kA interrupting rating at 480VAC, with a 40°C ambient temperature rating. The HKA3150 is suitable for use in 3-phase power distribution systems within the MARK 75 family.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Westinghouse
  • Family: MARK 75
  • Type: HKA
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600 VAC
  • Current Rating: 150 Amp
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Certification: UL Listed
  • AIC rating: 35kA @ 480VAC
  • Weight: 19 lb
  • Mounting Type: Panel Mount
  • Interrupt Rating: 25kA @ 600VAC
  • Terminal Type: Aluminum/Copper Standard Pressure
  • Dimensions: Approx. 5.5" W x 4.06" D x 10.13" H
  • Ambient Temperature Rating: 40°C
  • Frame/Series: KA Frame