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Westinghouse HMA3450 - Molded Case 450A 600V 3-Pole

Westinghouse
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Westinghouse HMA3450 is a 3-pole molded case circuit breaker from the MARK 75 family, designed for overcurrent protection using thermal magnetic technology. It is rated for 600V AC, 450A continuous current, and provides LI (Long-Time and Instantaneous) trip functions for coordinated fault interruption. The unit features a bolt-on connection, weighs 54 lb, and delivers an AIC rating of 35kA at 480V for robust short-circuit handling in 3-phase systems. This breaker complies with industry standards for industrial power distribution and motor control applications, ensuring reliable performance in demanding environments.

Key Features & Specifications
  • Type: Molded Case
  • Voltage Rating: 600V AC
  • Current Rating: 450A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 35kA@480V
  • Functions: LI - Long-Time and Instantaneous
  • Family: MARK 75
  • Weight: 54 lb


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