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Westinghouse HLA3150 - 3-Pole 150A Thermal Magnetic Circuit Breaker

Westinghouse
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Westinghouse HLA3150 is a 3-pole molded case circuit breaker from the MARK 75 family, designed for thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 600V AC, 150A continuous current, and delivers a 35kA interrupting capacity at 480V AC in a 3-phase system. This bolt-on unit weighs 29 lb and features a compact molded case construction for secure panel mounting. It is UL certified, ensuring compliance with North American electrical safety standards. Typical applications include industrial power distribution, motor control centers, and commercial switchboards requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 35kA@480V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic (LI - Long-Time and Instantaneous)
  • Functions: LI - Long-Time and Instantaneous
  • Certification: UL
  • Weight: 29 lb
  • Family: MARK 75
  • Type: HLA
  • Item Subcategory: Molded Case