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Merlin Gerin S144D - Solid-State Trip Unit LSIG Protection (600V)

Merlin Gerin
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Merlin Gerin S144D is a solid-state trip unit designed for advanced circuit protection in industrial power distribution systems, providing comprehensive LSIG (Long-Time, Short-Time, Instantaneous, and Ground Fault) protection functions. It operates with a voltage rating of 600V and is engineered for integration into compatible circuit breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL. The unit features a compact, durable construction with a weight of 1 lb, ensuring reliable performance in demanding environments. It is designed to meet rigorous industrial standards for electrical protection and control. Typical applications include protecting feeders, motors, and generators within manufacturing plants, data centers, and commercial facilities.

Key Features & Specifications
  • Type: Solid-State Trip Unit (Micrologic Family), S144 Type
  • Voltage Rating: 600V
  • Functions: LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault Protection
  • Protection: Solid State
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Weight: 1 lb
  • Item Subcategory: Trip Units & Programmers


Product Identification
  • Manufacturer: Schneider Electric
  • Family: Micrologic
  • Model: S144D