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Square D S143H - Solid-State Trip Unit 600V LSI Protection

Square D
Price
Save $-5,744.28
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Condition
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Square D S143H 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 circuit breakers operating at a 600V AC rating. The unit is engineered for integration with compatible Square D breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL, ensuring reliable performance in demanding environments. Its solid-state design offers precise trip characteristics for safeguarding electrical equipment against overloads and short circuits.

Key Features & Specifications
  • Type: Solid-State Trip Unit (Micrologic Family), S143H Model
  • Voltage Rating: 600V AC
  • Protection Functions: LSI (Long-Time, Short-Time, Instantaneous)
  • Protection Technology: 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: S143H