UL 10485 PFA High-Temperature Wire for Internal Equipment Wiring
UL 10485 PFA high-temperature wire is a single-core appliance and electronic-equipment wire designed for internal wiring where elevated-temperature capability and compact insulation dimensions are important. The listed construction combines a PFA insulated conductor with a 600 V and 250 C rating. Therefore, it is a practical option for engineers specifying internal leads in compact electrical assemblies, heating-related equipment and electronic modules, subject to the complete equipment design and applicable approvals.
This page describes the listed UL Style 10485 construction. It is not a statement that every finished assembly, custom length or end-terminated harness is automatically approved for every end use. Instead, the final application should be reviewed for conductor temperature, terminal rating, routing, bend condition and the rules applicable to the completed equipment.
Construction and Listed Technical Data
PFA is used as the insulation material for this wire style. It supports use where a high temperature rating and a small outside diameter are both relevant. The reference construction allows nickel, silver or bare copper conductors; however, the selected conductor material should match the actual temperature exposure, connection method and project specification. Black, white, red, yellow, green, blue, brown, grey, orange and violet are listed stock color options. Other project requirements should be confirmed before quotation.
| Property | Listed value or range |
|---|---|
| Product model | UL Style 10485 |
| Wire type | Single-core PFA insulated high-temperature wire |
| Rated voltage | 600 V |
| Temperature rating | 250 C |
| Conductor options | Nickel, silver or bare copper, subject to final construction |
| Insulation | PFA |
| Listed size range | 20 AWG to 30 AWG |
| Flame reference | VW-1 marking reference |
| Reference standards | UL Style 10485; UL 758 and UL 1581 referenced in source data |
Available AWG Sizes
The available range covers 20 AWG through 30 AWG. A smaller AWG number generally provides a larger conductor cross-section, while a higher AWG number is more compact. Selection should begin with the circuit current and permitted temperature rise. Next, consider conductor length and voltage drop, especially where wiring runs across an enclosure. Finally, allow for the number of grouped conductors, the routing space and the terminal or connector acceptance criteria. Rating alone is not enough to select a wire size.
| AWG size | Listed conductor construction | Maximum conductor resistance (Ohm/km) | Nominal overall diameter (mm) |
|---|---|---|---|
| 20 AWG | 7/0.30 | 36.70 | 1.36 +/- 0.10 |
| 22 AWG | 19/0.15 | 59.40 | 1.15 |
| 24 AWG | 7/0.20 | 94.20 | 1.00 |
| 26 AWG | 7/0.16 | 150.00 | 0.88 |
| 28 AWG | 1/0.32 or 7/0.127 | 227.00 | 0.72 |
| 30 AWG | 1/0.254 | 361.00 | 0.66 |
Values above are the listed reference data for this product page. Please provide the required AWG, conductor material and installation details when requesting a quotation so that the offered construction can be confirmed.
Typical Internal Wiring Applications
UL 10485 PFA wire is intended for internal appliance and electronic-equipment wiring. For example, it can be specified for internal leads in heating and thermal-processing equipment, heat-sealing assemblies, high-temperature control sections, compact electronic modules and appliance wire harnesses. It may also be considered where ordinary internal wiring insulation does not provide the required temperature rating. In each case, the wire must be evaluated as part of the complete system rather than treated as a general external power cable.
For electronic equipment, the compact diameter can help when routing multiple leads through a limited enclosure space. Nevertheless, avoid selecting it solely because of its 250 C marking. Connector temperature capability, nearby heat sources, installation radius, mechanical protection and the equipment-level approval requirements all need to be considered together.
Selection and Installation Limits
This product page does not claim a defined dynamic-flexing, continuous-motion, oil-resistance, abrasion-resistance or minimum-bend-radius performance because those conditions are not specified in the source data. If the cable will move repeatedly, contact surfaces, oil or chemicals are present, or the installation has a tight bend, please send the actual operating conditions before selecting a construction.
Similarly, 600 V and 250 C describe the listed wire rating, not a blanket operating guarantee for an entire machine. The applicable maximum conductor temperature depends on the finished equipment, terminals, protective devices, routing and local requirements. Confirm the product marking, conductor option and end-use acceptance with the responsible design and compliance team before production release.
Comparing Related PFA High-Temperature Wire Styles
| Item to compare | UL 10485 | Related UL 10503 product page |
|---|---|---|
| Wire style | UL Style 10485 | UL Style 10503 |
| Voltage and temperature shown | 600 V, 250 C | See the linked product page for its listed construction |
| Selection basis | Confirm AWG, conductor material, color and equipment use | Compare the actual style marking and project specification |
Wire styles with similar voltage, temperature or insulation descriptions are not interchangeable by default. Compare the specified style, required marking and the finished-equipment conditions before choosing a substitute.
Customization and Ordering Information
Listed packaging references include 500 ft, 1,000 ft and 2,000 ft lengths. Color, conductor material, AWG size, requested length and marking requirements should be confirmed for each order. MOQ and lead time depend on the requested construction and quantity, so they should be quoted after the technical requirement is reviewed.
Send Your Requirements: include the required AWG, conductor material preference, insulation color, total length, operating temperature, equipment type, quantity and any marking or compliance documents required. This enables TEBAOFLEX to check the correct construction before a quotation is issued.
Request a Quote for UL 10485 PFA high-temperature wire
Frequently Asked Questions
Can UL 10485 wire be supplied with a nickel or silver conductor?
The reference data lists nickel, silver and bare copper conductor options. Availability should be confirmed against the required AWG and final construction.
Which sizes are listed for this wire?
The listed range is 20 AWG to 30 AWG. The correct size depends on current, length, thermal conditions, routing and terminal requirements.
Does the 250 C rating make it suitable for every high-temperature installation?
No. The complete equipment design, terminals, wire routing and end-use requirements must be reviewed. The rating should not be used as the only selection criterion.
Can color and length be specified?
Listed stock colors and reference package lengths are available as a starting point. Please submit the required color, length and quantity for confirmation.
