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Westinghouse HLA21750TM - Magnetic Trip Unit 400A 600V

Westinghouse
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Westinghouse HLA21750TM is a magnetic-only trip unit designed for instantaneous overcurrent protection in industrial power distribution systems. It operates at a voltage rating of 600V with a fixed current rating of 400A, providing reliable short-circuit interruption without thermal delay. This two-pole unit weighs 2 lb and is constructed for direct integration into LA and HLA compatible frames, featuring a compact design for panelboard mounting. The trip unit complies with industry standards for magnetic-only protection, ensuring precise response to high-level faults. It is typically applied in motor control centers, switchboards, and other industrial environments requiring instantaneous trip characteristics without overload protection.

Key Features & Specifications
  • Type: Magnetic Only Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 400A
  • Poles: 2
  • Functions: I - Instantaneous
  • Compatible Frames: LA, HLA
  • Weight: 2 lb
  • Protection: Magnetic Only
  • Amperage Minimum: 400
  • Amperage Maximum: 400
  • Family: MARK 75
  • Item Subcategory: Trip Units & Programmers


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