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Westinghouse HLA3300 - Molded Case Circuit Breaker 300A 600V

Westinghouse
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The Westinghouse HLA3300 is a three-pole molded case circuit breaker from the MARK 75 family, designed to provide long-time and instantaneous (LI) protection for industrial electrical systems. This thermal magnetic breaker is rated for 600V AC, 300A continuous current, and delivers a 35kA interrupting capacity at 480V, with a bolt-on connection for secure installation. Weighing 29 lb, it features a robust molded case construction suited for demanding environments. The HLA3300 complies with applicable industry standards for overcurrent protection in three-phase power distribution. It is typically used in industrial switchboards, panelboards, and motor control centers requiring reliable circuit isolation and fault interruption.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 35kA@480V
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • Family: MARK 75
  • Weight: 29 lb
  • Functions: LI - Long-Time and Instantaneous
  • Breaker Type: HLA
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL, CSA
  • Installation Type: Fixed
  • Item QTY: 1
  • Breaker Frame: MARK 75
  • Current Rating: 300A
  • Operating Temperature Maximum Celsius: 40°C


Product Identification
  • UPC: Not available
  • GTIN: Not available