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Merlin Gerin ST308S-LSI-800A - Trip Unit 800A 3-Pole

Merlin Gerin
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Merlin Gerin ST308S-LSI-800A is a Masterpact ST series solid-state trip unit designed for precise protection coordination in low voltage power distribution systems. This 3-pole unit is rated for 800 amperes maximum and minimum, with a voltage rating of 600V AC, and provides LSI (Long-Time, Short-Time, and Instantaneous) protection functions. Weighing 15 lb, it is compatible with Masterpact M and MP frames and features a robust construction suitable for fixed or drawout mounting. The trip unit complies with IEC 60947-2 and BSEN 60947-2 standards for safety and reliability. It is typically applied in industrial environments requiring high interrupting capacity and selective coordination for main or feeder circuits.

Key Features & Specifications
  • Manufacturer: Merlin Gerin
  • Item Subcategory: Trip Units & Programmers
  • Family: Masterpact
  • Type: ST
  • Weight: 15 lb
  • Functions: LSI - Long-Time, Short-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Amperage Minimum: 800
  • Protection: Solid State
  • Compatible Frames: M,MP
  • Amperage Maximum: 800
  • Part Number: ST308S-LSI-800A
  • Series/Frame: Masterpact ST
  • Mounting Type: Fixed or Drawout
  • High Interrupting Capacity
  • Standards: IEC 60947-2, BSEN 60947-2