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Merlin Gerin STR58U-LSI-3000A - Solid State Trip Unit 3000A 600V

Merlin Gerin
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Merlin Gerin STR58U-LSI-3000A is a solid-state trip unit designed for overcurrent protection within the Masterpact family of circuit breakers. It provides Long-Time, Short-Time, and Instantaneous (LSI) protection functions, rated for 600V AC and a continuous current rating of 3000A across three poles. This trip unit weighs 10 lb and is compatible with M and MP frame circuit breakers, featuring a solid-state design for precise and reliable protection coordination. It complies with industry standards for industrial power distribution systems. Typical applications include protecting main feeders, large motors, and transformers in commercial and industrial electrical installations.

Key Features & Specifications
  • Type: Solid-state trip unit for Masterpact circuit breakers
  • Voltage Rating: 600V AC
  • Current Rating: 3000A (minimum and maximum)
  • Poles: 3
  • Protection: Solid State
  • Functions: LSI - Long-Time, Short-Time and Instantaneous
  • Compatible Frames: M, MP
  • Weight: 10 lb
  • Family: Masterpact
  • Item Subcategory: Trip Units & Programmers


Product Identification
  • UPC: Not available
  • GTIN: Not available