Fiberglass Braided Thermocouple and Extension Wire

Series 304
Zesta Thermocouple Wire Series 304
Zesta Thermocouple Wire Series 304
The uniform quality and availability of the SERIES 304 make it the ideal wire for general applications requiring moderate abrasion and moisture resistance, wide temperature capabilities and economy.

Each conductor is covered with a color coded glass braid. This braid is impregnated to enhance abrasion resistance and reduce fraying. The insulated single conductors are laid parallel and covered with another layer of woven glass. A final impregnation is then applied to the glass.

For higher temperatures, consider SERIES 321.


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Product Features

Performance Capabilities
  • Continuous temperature rating: 900°F (482°C)
  • Fiberglass braided yarn insulation
  • Available with an optional metallic overbraid for additional abrasion resistance

Specifications

Insulation:
Fiberglass braided yarn
Continuous use temperature:
900°F (482°C)
Single use temperature:
1000°F (540°C)
Resistance properties:
  • Moisture: Good
  • Chemical: Good
  • Abrasion: Fair

Applications

  • Heat treating
  • Oven
  • General use