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Schneider Electric S174N - Trip Unit 600V (Micrologic 6.0H)

Schneider Electric
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Schneider Electric S174N is a Micrologic 6.0H harmonic trip unit designed for advanced protection and coordination in power distribution systems. This solid-state trip unit provides LSIG protection functions—long-time, short-time, instantaneous, and ground fault—and is rated for 600V. It weighs 1 lb and is compatible with a wide range of frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL. The unit meets industry standards for reliable performance in industrial and commercial power distribution applications. Typical applications include use in PowerPact and Masterpact circuit breakers for precise selective tripping and harmonic protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Trip Units & Programmers
  • Family: Micrologic
  • Type: S174
  • Weight: 1 lb
  • Functions: LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault
  • Voltage Rating: 600V
  • Protection: Solid State
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Trip Unit Type: Micrologic 6.0H Harmonic
  • Compatible with PowerPact and Masterpact circuit breakers


Part Number: S174N