UL 3580 silicone wire is a 1000 V, 150°C single-core high-temperature hook-up wire construction with a copper conductor and SR silicone rubber insulation. The supplied dimensional reference lists stranded 6–26 AWG options, their strand counts, insulation-wall thicknesses and finished outer diameters. TEBAOFLEX can review this construction against an equipment drawing and confirm the final production specification before quotation.
UL 3580 Silicone Wire at a Glance
| Selection point | Documented reference |
|---|---|
| Product model | UL 3580 style single-core silicone wire |
| Rated voltage | 1000 V |
| Rated temperature | 150°C |
| Conductor | Copper, solid or stranded; listed dimensions are for stranded constructions |
| Insulation | SR silicone rubber |
| Reference AWG sizes with dimensional data | 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 and 26 AWG |
| Reference bend radius | 10 × finished outer diameter; confirm for the final installation |
The 3580 designation is used here to identify the requested wire style and dimensional reference. Select the final conductor, insulation, test documentation and marking for the actual order; a style designation alone does not establish the status of a particular production lot.
What Is 1000V 150°C Silicone Hook-Up Wire?
It is an individual insulated copper lead for equipment wiring that needs a higher temperature rating than a general-purpose room-temperature lead. Buyers may also describe this construction as high-temperature silicone wire, 1000V silicone insulated wire, single-core heater lead wire or silicone appliance wire. These names express a similar purchasing need, but do not replace the exact wire drawing. Confirm the electrical load, conductor design, insulation thickness, temperature at the wire and terminal compatibility for each assembly.
Conductor and Insulation Construction
The reference sheet allows solid or stranded copper conductors; the measured series below is specifically for stranded versions. A single layer of SR silicone rubber provides the insulation. No separate outer sheath or multi-core assembly is described in the supplied construction. Strand count and wire diameter change with AWG size, so a part number or quotation should identify the selected row instead of treating all 3580-style wire as one interchangeable size.
6–26 AWG Stranded Wire Dimensions
The following are reference dimensions transcribed from the supplied technical sheet, not a universal tolerance promise for every custom construction. All diameters and wall thicknesses are in millimetres.
| AWG | Stranding (No./mm) | Conductor diameter (mm) | Insulation thickness (mm) | Finished OD (mm) |
|---|---|---|---|---|
| 6 | 259/0.254 | 5.46 | 1.58 | 7.89 ± 0.1* |
| 8 | 161/0.254 | 3.72 | 1.58 | 6.88 ± 0.1 |
| 10 | 105/0.254 | 3.01 | 1.20 | 5.41 ± 0.1 |
| 12 | 65/0.254 | 2.37 | 1.20 | 4.77 ± 0.1 |
| 14 | 41/0.254 | 1.88 | 1.20 | 4.28 ± 0.1 |
| 16 | 26/0.254 | 1.50 | 1.20 | 3.90 ± 0.1 |
| 18 | 34/0.18 | 1.21 | 1.20 | 3.62 ± 0.1 |
| 20 | 21/0.18 | 0.95 | 1.20 | 3.36 ± 0.1 |
| 22 | 17/0.16 | 0.76 | 1.20 | 3.17 ± 0.1 |
| 24 | 11/0.16 | 0.62 | 1.20 | 3.02 ± 0.1 |
| 26 | 7/0.16 | 0.49 | 1.20 | 2.89 ± 0.1 |
*Engineering check: The listed 6 AWG conductor diameter, insulation wall and finished OD do not reconcile arithmetically. TEBAOFLEX will confirm the 6 AWG finished diameter on the approved production drawing before an order is accepted. For every size, confirm the final dimensions and tolerances when specifying a terminal or restricted cable route.
Where Can This Silicone Wire Be Used?
Typical inquiries involve protected internal wiring in industrial heating equipment, appliance assemblies, electrical control compartments and similar equipment where the design calls for a 1000 V, 150°C single-core lead. The application image below is illustrative, not a documented customer installation. The wire should be routed and terminated according to the equipment design, with its actual conductor temperature and surrounding components checked by the project engineer.

Do not infer suitability for direct flame, immersion, outdoor exposure, moving cable chains, continuous flexing or exposed abrasion from the silicone insulation alone. Protect the wire from sharp edges and unsupported tensile loads. Current-carrying capacity also depends on installation, conductor size, grouping, ambient temperature and termination limits; no universal ampacity is assigned on this page.
How Should You Specify the Correct Wire?
| RFQ detail | Why it matters |
|---|---|
| AWG and conductor construction | Sets conductor dimensions, terminal choice and expected handling. |
| Operating voltage and temperature | Checks the wire against the actual circuit and the warmest wiring zone. |
| Routing and bending | Defines protection from sharp edges, support and the final bend-radius requirement. |
| Termination design | Confirms the strand class, strip length, connector and strain relief. |
| Colour, marking and packaging | Aligns production with the equipment drawing and assembly process. |
The supplied reference gives a bend-radius figure of 10 times the finished outside diameter. Treat that as an initial selection point and confirm the final bend requirement against the chosen conductor, routing temperature and installation method. The 150°C rating belongs to the specified wire construction; the complete assembly may have a lower limit set by terminals, sleeves or adjacent components.
TEBAOFLEX Customisation and Quotation
TEBAOFLEX can review copper conductor size and strand design, silicone-insulation colour, identification printing, cut length, reel or coil format and export packaging against the project requirement. Share the AWG, voltage, expected conductor temperature, operating environment, wiring drawing, quantity and destination. Final availability, dimensions, production documents, minimum quantity and lead time are confirmed with the approved specification.
Compare other high-temperature wire options, including 300 V 150°C silicone wire, when the equipment rating differs.
Frequently Asked Questions
What is the temperature rating of this 3580-style wire?
The supplied construction reference specifies 150°C. Confirm the conductor temperature in the actual assembly and the ratings of connected components.
What voltage is listed for this wire?
The reference rating is 1000 V. The final circuit and project documentation must match the ordered construction.
Is the conductor solid or stranded?
The reference permits either. Its detailed dimensional table covers stranded copper constructions from 6 to 26 AWG.
Can the colour and marking be changed?
Colour, identification printing and packaging can be reviewed for a project-specific order after the wire construction and quantity are confirmed.
Send Your Wire Requirements
Send your AWG size, strand design, installation conditions, target length and quantity to discuss a suitable 1000 V, 150°C silicone-wire construction.





