UL 10393 PTFE 250°C 600V High Temperature Wire is a single-core hook-up wire with a nickel-plated copper conductor and PTFE insulation. Its documented ratings are 250°C and 600 V, with conductor sizes from 10 AWG to 28 AWG for protected internal wiring in appliances and electronic equipment.
What is UL 10393 wire?
UL 10393 wire is a 600V high-temperature equipment wire designed around PTFE insulation and nickel-plated copper. It addresses purchasing requirements commonly described as 250°C PTFE wire, 600V high-temperature hook-up wire, nickel-plated copper appliance wire or single-core fluoropolymer insulated wire. The final construction should be selected according to conductor size, current, routing, termination and the complete operating environment.
Key product features
- 250°C temperature rating: intended for high-temperature internal wiring when the complete installation supports the stated rating.
- 600 V voltage rating: suited to protected equipment circuits requiring a 600V single-core wire.
- PTFE insulation: fluoropolymer insulation for demanding thermal and electrical environments.
- Nickel-plated copper conductor: provides a defined conductor option for high-temperature termination and equipment design.
- 10–28 AWG range: covers a broad selection of internal power, control and connection requirements.
- Project-specific supply: insulation colour, printing, length and packaging can be reviewed against the submitted specification.
UL 10393 technical specifications
| Parameter | Documented value |
|---|---|
| Product model | UL 10393 |
| Wire type | Single-core high-temperature hook-up wire |
| Rated voltage | 600 V |
| Rated temperature | 250°C |
| Conductor | Nickel-plated copper |
| Insulation | PTFE fluoropolymer |
| Conductor size range | 10 AWG to 28 AWG |
| Typical use | Protected internal appliance and electronic equipment wiring |
| Customisation | Insulation colour, printing, length and packaging subject to confirmation |
Typical applications
This 250°C PTFE insulated wire is intended for protected internal connections where elevated temperature and electrical insulation are central selection factors. Typical projects may include:
- High-temperature appliance internal wiring
- Electronic and electrical equipment connections
- Heating equipment and thermal processing assemblies
- Protected control cabinets and control circuits
- Laboratory, instrumentation and specialised OEM equipment
- Internal leads routed near elevated-temperature components
Suitability depends on the complete installation, including ambient temperature, conductor current, terminal system, mechanical protection, bend requirements and external exposure.
How to select the correct 600V PTFE wire
| Selection factor | Information to confirm | Why it matters |
|---|---|---|
| Conductor size | Required AWG, current and allowable voltage drop | Determines electrical capacity and terminal compatibility |
| Temperature | Continuous and peak temperature at the actual routing position | Prevents selection based only on equipment-wide ambient temperature |
| Termination | Connector, crimp, soldering or other termination method | Must be compatible with nickel-plated copper and finished wire size |
| Mechanical conditions | Fixed routing, occasional movement, abrasion and bend space | Defines whether added protection or another cable construction is required |
| Supply format | Colour, printing, length, reel and packaging | Supports installation control and purchasing requirements |
Why use nickel-plated copper in high-temperature wiring?
The conductor plating is part of the documented UL 10393 construction. For procurement and engineering review, confirm that the selected terminal, connection method and operating temperature are compatible with nickel-plated copper. The plating should not be treated as proof of suitability for every environment or termination process.
Usage limits and installation review
The stated 250°C and 600 V values are product ratings, not approval of a complete machine or installation. Do not assume suitability for direct burial, continuous flexing, outdoor exposure, immersion, unprotected abrasion or a particular flame, oil or chemical test unless those conditions and test requirements have been separately reviewed. TEBAOFLEX can evaluate the requested wire construction against the intended equipment and operating conditions.
Related high-temperature wire options
Explore the wider high-temperature and specialty cable range. For another PTFE construction with the same documented temperature and voltage ratings, compare the UL 1659 PTFE 250°C 600V wire and cable.
Frequently asked questions
What is the temperature rating of UL 10393 PTFE wire?
The documented temperature rating is 250°C. The actual installation must also account for current loading, terminals, adjacent components and local ambient conditions.
What voltage is UL 10393 wire rated for?
The documented voltage rating is 600 V for the wire construction described on this page.
What conductor sizes are available?
The documented conductor size range is 10 AWG to 28 AWG. Submit the required AWG size and terminal information so the finished construction can be confirmed.
Is UL 10393 suitable for continuous movement or outdoor installation?
The stated application is protected internal equipment wiring. Continuous movement, direct outdoor exposure, burial and immersion require separate evaluation and should not be assumed from the temperature and voltage ratings.
What information is needed for a quotation?
Please provide the conductor size, required length, insulation colour, printing, packaging, voltage, operating temperature, installation method and equipment application. Drawings or terminal specifications are helpful when finished dimensions are critical.

















