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Square D S131N - Solid-State Trip Unit 600V (LI Protection)

Square D
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Square D S131N is a solid-state trip unit designed for providing advanced protection and coordination within low-voltage power circuit breakers. It operates at a voltage rating of 600V and delivers LI (Long-time and Instantaneous) protection functions for precise overcurrent coordination. The unit is constructed with a compact form factor, measuring 78.49 mm in depth by 112.78 mm in width and weighing 3.001 lb, and is certified to IEC standards for global application. This trip unit is engineered for integration into a wide range of compatible breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL, making it suitable for critical industrial and commercial power distribution systems.

Key Features & Specifications
  • Type: Solid-State Trip Unit (Micrologic Family), S131 Type
  • Voltage Rating: 600V
  • Functions: LI - Long-Time and Instantaneous Protection
  • Dimensions: 78.49 mm (Depth) x 112.78 mm (Width)
  • Weight: 3.001 lb
  • Protection: Solid State
  • Standards: IEC Certification
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Item Subcategory: Trip Units & Programmers


Product Identification
  • UPC: 3606486281475
  • GTIN: 03606486281475