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Westinghouse HLA31750TM - Magnetic Trip Unit 400A 600V 3-Pole

Westinghouse
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Westinghouse HLA31750TM 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 current rating of 400A, providing precise short-circuit interruption without thermal delay. The unit measures 10.3 inches in length/depth by 5.5 inches in height by 5.5 inches in width, weighs 2.9 lb, and features a 3-pole configuration with an instantaneous (I) function. This trip unit is UL Listed and is compatible with LA and HLA frame circuit breakers, making it suitable for motor control centers, switchboards, and heavy industrial equipment requiring high fault current protection.

Key Features & Specifications
  • Type: Trip Unit, Magnetic Only
  • Voltage Rating: 600V
  • Current Rating: 400A (Minimum 400A, Maximum 400A)
  • Dimensions: 10.3 in x 5.5 in x 5.5 in (Length/Depth x Height x Width)
  • Weight: 2.9 lb
  • Poles: 3
  • Protection: Magnetic Only
  • Functions: I - Instantaneous
  • Certification: UL Listed
  • Compatible Frames: LA, HLA
  • Family: MARK 75
  • Country of Origin: United States
  • Item Subcategory: Trip Units & Programmers


Product Identification
  • UPC: 786679831588
  • GTIN: 00786679831588