UL 1330 FEP WIRE - 200°C

Our UL 1330 Type FEP (Fluorinated Ethylene Propylene) collection represents the gold standard for high-performance internal wiring. Rated for continuous operation at 200°C and 600V, these lead wires are engineered for environments where standard PVC or XLPE would fail.

Unlike standard high-temp wire, FEP insulation provides a unique combination of virtually total chemical inertness and superior dielectric properties, making it the preferred choice for oil and gas sensors, medical instrumentation, and high-end industrial ovens. With a thin-wall construction that doesn't sacrifice toughness, UL 1330 is optimized for compact electronic assemblies and aerospace applications that demand both flame resistance (VW-1 rated) and low-friction routing through tight conduits.

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UL 1330 FEP wire is a high-performance 600V internal lead wire insulated with Fluorinated Ethylene Propylene (FEP)—a premium fluoropolymer in the Teflon® family. Engineered for continuous operation up to 200°C (392°F), it offers exceptional dielectric strength, extreme chemical inertness, and a low-friction profile for high-end industrial and electronic applications.

UL 1330 FEP wire is rated for continuous operation at 200°C (392°F) and carries a standard voltage rating of 600 Volts. This combination makes it suitable for demanding industrial controls, high-temperature sensors, and power circuits.

UL 1330 FEP wire is widely specified for internal wiring where chemical, thermal, or electronic demands are extreme. Common applications include aerospace avionics, medical instrumentation, industrial processing plants, oil and gas sensors, commercial ovens, high-frequency electronic assemblies, and robotics.

FEP insulation features a carbon-fluorine molecular structure that makes it virtually chemically inert. It offers complete resistance to aggressive industrial chemicals, acids, alkalis, solvents, fuels, oils, and hydraulic fluids that would cause standard PVC or rubber insulations to dissolve or degrade.

Yes! Wire America stocks and custom-cuts UL 1330 FEP high-temperature wire by the foot so you order only the exact footage your job requires—eliminating scrap and leftover reel ends. Order online or contact our sales desk directly at (833) 268-8644 for custom cut lengths, engineering submittal sheets, or bulk spool pricing.

FEP outperforms PVC in heat resistance (200°C vs 90°C) and chemical toughness. Compared to PTFE, FEP is melt-processable, allowing for uniform thin-wall construction at a more cost-effective price point while offering similar chemical protection. Compared to Silicone, FEP provides significantly higher physical cut-through, abrasion, and oil resistance.

Yes. UL 1330 FEP wire carries a VW-1 flame rating. FEP insulation is inherently self-extinguishing, highly flame retardant, and produces extremely low smoke and toxicity when exposed to direct fire, enhancing safety in tight electronic enclosures.

The UL 1330 style designation identifies this conductor under Underwriters Laboratories Appliance Wiring Material (AWM) standards. It certifies the wire for 200°C, 600V internal wiring of appliances, machinery, and electronic equipment, including optional resistance to oil exposure at 60°C or 80°C.

Selecting the correct gauge depends on your circuit's total amperage and environmental operating temperature. Because FEP's high-temperature rating allows conductors to safely handle higher current density than standard wire, consult high-temp ampacity tables to select the optimal AWG for your space constraints.

Beyond heat and chemical defense, FEP features a non-stick, low-friction surface that makes pulling wire through compact spaces or dense wire harnesses exceptionally smooth. It resists mechanical abrasion, solder-iron contact damage, and moisture absorption over long-term operation.

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UL 1330 FEP High-Temperature Wire (200°C)

UL 1330 is a high-performance lead wire engineered for extreme environments requiring a combination of high-temperature resistance, excellent dielectric strength, and compact dimensions. Featuring a stranded tinned copper conductor insulated with a specialized Fluorinated Ethylene Propylene (FEP) jacket, this wire is rated for continuous operation at 200°C and 600V. Because FEP is a non-aging fluoropolymer, it is virtually immune to moisture, UV radiation, and a vast array of industrial chemicals and solvents. Its thin-wall construction allows for significantly more conductors to be routed through a single conduit or wiring harness compared to bulkier silicone-glass alternatives, making it the professional choice for sophisticated industrial and aerospace electronics.

Installation Note: While UL 1330 is incredibly durable chemically, its thin-wall FEP insulation is stiffer than silicone rubber. This "memory" makes it excellent for maintaining a specific shape in a harness but requires careful handling to avoid kinking during the initial pull. Because FEP has a higher melting point than standard solder, it is highly resistant to "shrink-back" during termination, allowing for very precise, clean soldering in tight connectors. However, always use specialized fluoropolymer wire strippers; standard strippers may struggle to cut through the tough FEP jacket cleanly without nicking the fine tinned copper strands underneath.

Key Features
  • 200°C Thermal Rating: Maintains its physical and electrical properties in extreme heat and remains flexible in temperatures as low as -70°C.
  • Chemical & Fluid Inertness: Provides nearly universal resistance to acids, alkalis, oils, and fuels, ensuring long-term reliability in harsh processing environments.
  • Thin-Wall Design: The high dielectric strength of FEP allows for a thinner insulation profile, reducing the overall diameter of the wire for high-density applications.
  • Low Friction Coefficient: The naturally "slick" surface of the FEP jacket makes it exceptionally easy to pull through complex conduit runs or tight wire harnesses.
  • Excellent Solderability: Features tinned copper conductors that resist oxidation and provide easy, reliable solder connections.
  • Non-Flammable: FEP is inherently flame-resistant and will not support combustion, meeting strict safety requirements for enclosed industrial systems.
Common Applications
  • Internal Appliance Wiring: Used in commercial ovens, high-end coffee makers, and industrial drying equipment.
  • Chemical Processing Equipment: Providing power to sensors and valves in environments where corrosive vapors or fluids are present.
  • Medical & Laboratory Instruments: Ideal for sterilization equipment and analytical devices requiring a chemically resistant, compact wire.
  • Aerospace & Defense Electronics: Used in flight control systems and communications gear where weight and space are critical factors.
  • Oil & Gas Downhole Tools: Reliable performance in the high-pressure, high-temperature (HPHT) environments of subterranean exploration.
  • Automotive Sensors: High-temperature lead wire for engine-mounted sensors and exhaust system monitoring.
  • Lighting Systems: Used as a ballast lead wire in high-intensity discharge (HID) and commercial LED fixtures.