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Westinghouse HMA3250 - Molded Case Circuit Breaker 250A 600V 3-Pole

Westinghouse
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Westinghouse HMA3250 is a three-pole molded case circuit breaker from the Mark 75 family, designed for industrial power distribution with LI (Long-Time and Instantaneous) protection functions. It carries a 250A current rating and a 600V maximum voltage rating, with an interrupting capacity of 35kA at 480VAC. This bolt-on unit weighs 54 lb and features a thermal magnetic trip mechanism with an interchangeable trip unit for flexible protection settings. It is UL Listed for safety compliance and engineered for panel mount installations in demanding environments. The HMA3250 is suitable for protecting electrical circuits in industrial power distribution applications.

Key Features & Specifications
  • Type: HMA
  • Family: MARK 75
  • Amperage: 250A
  • Voltage Rating: 600V
  • Poles: 3
  • Phase: 3
  • Interrupt Rating: 35kA @ 480VAC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Mounting Type: Panel Mount
  • Weight: 54 lb
  • Interchangeable Trip Unit
  • UL Listed


Part Number: HMA3250