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High-temperature, flexible, and chemically resistant cables are required for PTC, NTC, and RTD temperature sensing, typically featuring specialized insulation like PTFE (Teflon), FEP, Silicone, or Fiberglass to handle environmental heat, often up to 200°C–500°C. These cables ensure accurate signal transmission from the sensor to control equipment, minimizing lead resistance errors.
Recommended Cable Types & Materials:
- FEP Teflon Insulated (Rated to 200°C/400°F): Ideal for high-temperature, oily, or chemical environments. Commonly used in 24 AWG stranded configurations for flexibility.
- Silicone Rubber Cable: Waterproof, flexible, and heat-resistant, often used for NTC 10k/100k probes in liquid heating applications.
- Fiberglass Insulated Cable: Suitable for extreme heat, with high-temperature ratings often reaching 500°C.
- Stainless Steel Shielded Cable: Used for extra protection against abrasion and mechanical damage.
- Retractable/Coiled Cable: Available with TPE or similar insulation for applications requiring cable movement (e.g., in instrumentation).
Key Features for Selection:
- Conductor Type: Stranded, tinned, or silver-plated copper is used for better flexibility and signal integrity.
- Configuration: 2-wire (2 red, 1 white) for standard NTC/PTC/RTD; 3-wire for accurate RTD measurement; 4-wire for highest precision.
- Shielding: Shielded cables (tinned copper braid) are recommended to prevent interference in industrial environments.
- Temperature Rating: Cable selection must match the maximum temperature of the application, not just the sensor rating.
Common Applications:
- NTC/PTC: Heat pumps, electric water heaters, HVAC systems, refrigerators, and electric blankets.
- RTD (Pt100/Pt1000): Industrial automation, food-grade sensors, furnaces, and autoclaves.
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High Temperature PRT Cable and RTD Cable Manufacturer
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