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Merlin Gerin STR38S-LSI-2000A - Trip Unit 2000A LSI (600V 3-Pole)

Merlin Gerin
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Merlin Gerin STR38S-LSI-2000A is a solid-state trip unit designed for advanced overcurrent and short-circuit protection within Masterpact circuit breakers. This unit provides Long-Time, Short-Time, and Instantaneous (LSI) protection functions for a 2000A, 600V, three-phase power system. Weighing 10 lb, it is compatible with M and MP Masterpact frames and supports both fixed and drawout mounting configurations. The trip unit complies with industry standards for industrial and commercial power distribution systems. It is typically deployed in marine, industrial, and commercial environments requiring precise protection coordination.

Key Features & Specifications
  • Manufacturer: Merlin Gerin
  • Item Subcategory: Trip Units & Programmers
  • Family: Masterpact
  • Type: STR
  • Weight: 10 lb
  • Functions: LSI - Long-Time, Short-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Amperage: 2000A
  • Protection: Solid State
  • Compatible Frames: M, MP
  • Remote mountable display with digital three-phase ammeter
  • FlashSAFE arc-flash reducing maintenance mode
  • MODBUS communications
  • Fixed or drawout mounting
  • Three-phase application