Default product image

Square D S143N - Solid-State Trip Unit (LSI, 600V)

Square D
Price
Save $1,357.37
/
Condition
  • In stock, ready to ship
  • Backordered, shipping soon
Call for Price
Square D S143N is a 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 circuits rated up to 600V. The unit is constructed with a compact form factor measuring 199.39 mm H x 112.78 mm W x 78.49 mm D and a weight of 3.001 lb, and it is certified to CSA and UL standards. This trip unit is engineered for integration with compatible Square D circuit breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL.

Key Features & Specifications
  • Type: Solid-state electronic trip unit (Micrologic family)
  • Voltage Rating: 600V
  • Functions: LSI - Long-Time, Short-Time, and Instantaneous protection
  • Dimensions: 199.39 mm H x 112.78 mm W x 78.49 mm D (7.85 in x 4.44 in x 3.09 in)
  • Weight: 3.001 lb
  • Protection: Solid State
  • Certification: CSA, UL listed
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Item Subcategory: Trip Units & Programmers


Product Identification
  • UPC: 3606486118719
  • GTIN: 03606486118719