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Schneider Electric S144F - Solid-State Trip Unit LSIG Protection (600V)

Schneider Electric
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Schneider Electric S144F is a solid-state trip unit designed for advanced circuit protection in industrial power distribution systems. It provides comprehensive LSIG protection—Long-Time, Short-Time, Instantaneous, and Ground Fault—for electrical circuits rated up to 600V AC. The unit is engineered for integration into compatible breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL, featuring a compact, modular construction with a weight of 1 lb. It complies with relevant industry standards for solid-state protection devices, making it suitable for critical applications in manufacturing plants, data centers, and commercial facilities where reliable selective coordination and fault protection are required.

Key Features & Specifications
  • Type: Solid-State Trip Unit (Programmer), Micrologic Family
  • Voltage Rating: 600V AC
  • Protection Functions: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Weight: 1 lb
  • Technology: Solid State Protection


Product Identification
  • Manufacturer Part Number: S144F