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HKA3070

Westinghouse
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Westinghouse HKA3070 is a 3-pole molded case circuit breaker designed for thermal magnetic overload and short circuit protection in industrial and commercial power distribution systems. It is rated for 70 amps at 600 volts AC with a 35kA interrupting capacity at 480V, utilizing LI (Long-Time and Instantaneous) trip functions. The unit weighs 19 lb and features a bolt-on connection with a robust HKA frame from the MARK 75 family for secure installation. This breaker complies with applicable industry standards for molded case circuit breakers in 600 VAC systems. It is suitable for use in three-phase applications requiring reliable branch circuit or main feeder protection.

Key Features & Specifications
  • Type: Molded Case
  • Manufacturer: Westinghouse
  • Family: MARK 75
  • Frame Type: HKA
  • Amperage: 70 Amps
  • Voltage Rating: 600 Volts AC
  • Poles: 3
  • Phase: 3
  • Protection: Thermal Magnetic
  • Trip Unit: Thermal Magnetic Non-Interchangeable
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 35kA@480V
  • Connection: Bolt-On
  • Mounting Type: Molded Case
  • Weight: 19 lb
  • Load Side Lugs


Westinghouse HKA3070 - Molded Case 70A 600V 3-Pole