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Westinghouse HMA3150 - Molded Case 150A 600V 3-Pole

Westinghouse
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Westinghouse HMA3150 is a 3-pole molded case circuit breaker from the MARK 75 family, designed for thermal magnetic overload and short circuit protection. It is rated for 150 amps at 600V AC with a 35kA interrupting capacity at 480V AC, utilizing a LI (Long-Time and Instantaneous) trip function. The unit weighs 54 lb, features a bolt-on connection, and is constructed for panel mounting with an interchangeable trip unit for application flexibility. This breaker is UL Listed, ensuring compliance with industry safety standards. It is suitable for industrial power distribution systems requiring reliable circuit protection in three-phase applications.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Item Subcategory: Molded Case
  • Family: MARK 75
  • Type: HMA
  • Weight: 54 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V AC
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 35kA at 480V
  • Phase: 3
  • Current Rating: 150A
  • Mounting Type: Panel mount
  • Trip Unit: Thermal Magnetic, Interchangeable
  • Series/Frame: HMA
  • Certifications: UL Listed


Part Number: HMA3150