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Square D S144R - Solid-State Trip Unit 600V LSIG Protection

Square D
Price
Save $-5,474.36
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Square D S144R is a Micrologic 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 circuits rated up to 600V. The unit is engineered for integration with compatible Square D power circuit breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL, and features a robust construction with a weight of 1 lb. It meets relevant industry standards for solid-state protective devices, making it suitable for critical applications in manufacturing, data centers, and commercial facilities.

Key Features & Specifications
  • Type: Solid-state electronic trip unit (Micrologic family)
  • Voltage Rating: 600V
  • Functions: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Protection: Solid State
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Weight: 1 lb


Product Identification
  • Manufacturer Part Number: S144R