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Type J Thermocouple Wire 20 Gauge Solid Wire Rated 900°F (480°C) Fiberglass Insulation (Copy)

Key Features

  • High-Quality Fiberglass braided single conductor and Jacket.
  • Rated for continuous use at 900° F (480º C).
  • Impregnated with high-temperature resin for better handling and reduce fraying.
  • Available in standard limits and special Limits of error.


Type J Fiberglass insulated wire has Iron and Constantan Conductors and it is commonly used in medium temp application e.g. heat treating, aluminum processing, high temp furnaces, and heaters. It has fair abrasion and moisture resistance compare to the other insulations. Nominal Outside diameter with jacket 0.098″.