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Westinghouse HKB2175T - 175A Thermal Magnetic Trip Unit (600V, 2-Pole)

Westinghouse
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The Westinghouse HKB2175T is a 2-pole thermal magnetic circuit breaker trip unit from the MARK 75 family, designed to provide long-time and instantaneous (LI) protection against overloads and short circuits. It is rated for 600V AC and carries a continuous current rating of 175A, with a minimum amperage of 175A and a maximum amperage of 175A. This unit weighs 2 lb and is compatible with KB and HKB frame circuit breakers, featuring a compact construction suitable for industrial panelboards and switchboards. It complies with applicable industry standards for overcurrent protection in commercial and industrial power distribution systems. Typical applications include motor control centers, lighting panels, and feeder circuits requiring reliable thermal-magnetic trip characteristics.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 175A
  • Poles: 2
  • Functions: LI - Long-Time and Instantaneous
  • Compatible Frames: KB, HKB
  • Protection: Thermal Magnetic
  • Weight: 2 lb
  • Family: MARK 75
  • Item Subcategory: Trip Units & Programmers