PFA instrumentation cables are designed to deliver precise signal transmission and reliable performance in the most demanding environments.
Made with Perfluoroalkoxy (PFA) insulation, these cables combine excellent dielectric strength, exceptional temperature resistance, and superior chemical durability, making them the ideal solution for process control, instrumentation, and data acquisition systems in harsh industrial or high-temperature settings.

PFA Instrumentation Cables
Whether in chemical plants, power generation, or aerospace applications, PFA-insulated cables ensure stable performance where conventional materials fail.
What Are PFA Instrumentation Cables?
PFA (Perfluoroalkoxy) is a fluoropolymer known for its high thermal stability and outstanding resistance to chemicals and solvents.
Instrumentation cables using PFA insulation are built to transmit analog or digital signals with high accuracy even under extreme thermal or corrosive conditions.
Typical Construction
Conductors: Tinned, silver-plated, or nickel-plated copper
Insulation: PFA (Perfluoroalkoxy) fluoropolymer
Pairing: Twisted pairs or triads to minimize electromagnetic interference (EMI)
Shielding (optional): Aluminum/polyester foil with tinned copper braid
Outer Jacket: PFA, FEP, or PTFE for enhanced environmental protection
Key Features and Advantages
🌡 High Temperature Resistance – Operates continuously up to +250°C
🧪 Excellent Chemical Resistance – Immune to acids, alkalis, oils, and solvents
⚡ Superior Electrical Properties – Low capacitance and excellent dielectric strength ensure signal integrity
💧 Non-Hygroscopic – Does not absorb moisture, ensuring long-term stability
🔥 Flame Retardant & Low Smoke – Meets stringent fire safety standards (UL 94 V-0)
🧯 Non-Toxic & Halogen-Free – Suitable for sensitive environments
⚙️ Durable & Flexible – Retains flexibility even at cryogenic temperatures
Applications of PFA Instrumentation Cables
PFA cables are chosen for mission-critical applications where both temperature and chemical exposure are concerns:
🏭 Petrochemical & Refinery Plants – Process control and instrumentation wiring
⚡ Power Generation – Monitoring and control circuits in turbines or reactors
🧬 Pharmaceutical & Biotechnology – Cleanroom and sterilization environments
🚀 Aerospace & Defense – Precision signal cables for avionics and test systems
🌡 Laboratory & Research Equipment – High-temperature sensing and data acquisition
🧱 Industrial Automation – Sensor and control cabling for high-heat machinery
Technical Specifications
Parameter | Typical Value |
---|---|
Insulation Material | PFA (Perfluoroalkoxy) |
Conductor Material | Tinned / Silver-plated / Nickel-plated Copper |
Temperature Range | –90°C to +250°C |
Voltage Rating | 300V – 600V |
Dielectric Constant | ~2.1 |
Flame Rating | UL 94 V-0 |
Chemical Resistance | Excellent |
Water Absorption | < 0.01% |
Shielding Options | Foil, Braid, or Combination |
PFA vs PTFE vs FEP Instrumentation Cables
Property | PFA | PTFE | FEP |
---|---|---|---|
Temperature Limit | +250°C | +260°C | +200°C |
Flexibility | Excellent | Moderate | High |
Chemical Resistance | Excellent | Excellent | Very Good |
Processing (Extrusion) | Easier | Difficult | Easy |
Dielectric Constant | 2.1 | 2.1 | 2.1 |
Cost | Moderate | Higher | Lower |
👉 Summary:
PFA instrumentation cables provide a perfect balance between thermal endurance, mechanical flexibility, and chemical durability, making them one of the best choices for industrial instrumentation and control systems.
Why Choose PFA Instrumentation Cables?
Choosing a PFA-insulated cable means ensuring long-term reliability in harsh environments.
Compared to standard PVC or XLPE cables, PFA versions offer unmatched resistance to heat, corrosion, and radiation while maintaining stable signal transmission.
At TOT Wire & Cable, we supply high-quality PFA instrumentation and control cables tailored for your specific application — available in shielded, multi-pair, and custom configurations.
Conclusion
PFA instrumentation cables combine the chemical inertness of fluoropolymers with exceptional thermal and electrical performance, ensuring accurate data transmission even under extreme conditions.
They are the trusted choice across industries where precision, durability, and safety are paramount.
👉 Contact TOT Wire & Cable today to request specifications or a customized quote for your PFA instrumentation cable requirements.