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Schneider Electric STR58U-LSIG - Solid-State Trip Unit 600V AC

Merlin Gerin
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The Schneider Electric Merlin Gerin STR58U-LSIG is a solid-state trip unit designed for the Masterpact family of circuit breakers, providing comprehensive protection through Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG) functions. It is rated for 600V AC and supports a current range from 800A to 6300A, making it suitable for high-capacity industrial power distribution systems. This 3-pole unit weighs 10 lb and is compatible with M and MP frame sizes, featuring a robust solid-state construction for reliable performance. It complies with relevant industry standards for overcurrent protection in commercial and industrial environments. Typical applications include main and feeder protection in switchboards, motor control centers, and large-scale electrical distribution networks.

Key Features & Specifications
  • Type: Solid-state trip unit for Masterpact circuit breakers
  • Voltage Rating: 600V AC
  • Current Rating: 800A to 6300A
  • Poles: 3
  • Protection: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Compatible Frames: M, MP
  • Weight: 10 lb
  • Functions: Long-Time, Short-Time, Instantaneous, Ground Fault
  • Manufacturer: Schneider Electric
  • Family: Masterpact
  • Type: STR
  • Item Subcategory: Trip Units & Programmers


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