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Westinghouse HMA3125T - Thermal Magnetic Trip Unit 125A 600V

Westinghouse
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Westinghouse HMA3125T is a thermal magnetic trip unit designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC and 125A, providing long-time and instantaneous (LI) protection functions. This 3-pole unit weighs 4 lb and is compatible with MA and HMA frame circuit breakers. It complies with applicable industry standards for molded case circuit breaker components. Typical applications include protecting feeders, motors, and branch circuits in commercial and industrial electrical panels.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 125A
  • Poles: 3
  • Protection: LI - Long-Time and Instantaneous
  • Compatible Frames: MA, HMA
  • Weight: 4 lb
  • Family: MARK 75
  • Functions: LI - Long-Time and Instantaneous
  • Amperage Minimum: 125
  • Amperage Maximum: 125


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