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Westinghouse HLA3400TM - Magnetic Trip Unit 400A 600V

Westinghouse
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Westinghouse HLA3400TM is a magnetic-only trip unit designed for instantaneous circuit protection in industrial power distribution systems. This 3-pole unit operates at a voltage rating of 600V and supports a current rating of 400A, providing reliable overcurrent interruption without thermal delay. Weighing 3 lb, the HLA3400TM is constructed for integration into LA and HLA compatible frames, ensuring robust mechanical compatibility. It complies with industry standards for magnetic-only protection, making it suitable for applications requiring precise instantaneous trip response. Typical uses include motor control centers, switchgear, and heavy machinery where short-circuit protection is prioritized over overload protection.

Key Features & Specifications
  • Type: Trip Unit, Magnetic Only
  • Voltage Rating: 600V
  • Current Rating: 400A (Minimum 400A, Maximum 400A)
  • Poles: 3
  • Functions: I - Instantaneous
  • Protection: Magnetic Only
  • Compatible Frames: LA, HLA
  • Family: MARK 75
  • Weight: 3 lb


Product Identification
  • Manufacturer: Westinghouse
  • Item Subcategory: Trip Units & Programmers