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Westinghouse HMA2250T - Thermal Magnetic Trip Unit 250A 600V

Westinghouse
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Westinghouse HMA2250T is a thermal-magnetic trip unit designed for overcurrent protection within the MARK 75 family of circuit breakers. It provides LI (Long-Time and Instantaneous) protection functions and is rated for 600V AC with a continuous current rating of 250A. This 2-pole unit weighs 3 lb and is compatible with MA and HMA frame circuit breakers. It is engineered for industrial power distribution systems requiring precise, reliable overcurrent protection.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 250A
  • Poles: 2
  • Functions: LI - Long-Time and Instantaneous
  • Protection: Thermal Magnetic
  • Compatible Frames: MA, HMA
  • Weight: 3 lb
  • Family: MARK 75
  • Item Subcategory: Trip Units & Programmers