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Square D S163H - Solid-State Trip Unit LSI Protection (600V)

Square D
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Square D S163H is a Micrologic solid-state trip unit designed for advanced circuit protection in industrial power distribution systems. It provides comprehensive LSI (Long-Time, Short-Time, and Instantaneous) protection functions for low-voltage power circuit breakers, operating with a voltage rating of 600V AC. The unit is engineered for reliable performance and integrates seamlessly with compatible breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL. This trip unit meets rigorous industry standards for electrical protection, making it suitable for critical applications in manufacturing, data centers, and commercial facilities where precise fault detection and system coordination are required.

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


Product Identification
  • Manufacturer Part Number: S163H