Style 3253 / 30144 / 30145 250°C silicone wire is a single-core high-temperature wire family for internal equipment wiring where sustained heat resistance and flexible routing are required. The family combines a metallic conductor with silicone rubber insulation and offers 300 V, 600 V, and 1000 V style options.
Key Features
- Continuous operating temperature from -60 °C to +250 °C.
- Silicone rubber insulation with stated resistance to thermal shock and UV.
- Style-based voltage options: 3253 at 300 V, 30144 at 600 V, and 30145 at 1000 V.
- Available with bare copper, nickel-plated copper, or nickel conductor options according to the technical data.
- The source data identifies UL 758 approval, horizontal flame testing, FT2 flame rating, and halogen-free material performance.
Applications
Suitable for household electrical heating appliances, rotating machines, lighting equipment, and industrial wiring in hot atmospheres.
Technical Parameters
| Parameter | Specification |
|---|---|
| Product styles | 3253 / 30144 / 30145 |
| Rated voltage | 300 V / 600 V / 1000 V by style |
| Test voltage | 10 × rated voltage |
| Operating temperature | -60 °C to +250 °C |
| Insulation | Silicone rubber |
| Conductor options | Bare copper, nickel-plated copper, or nickel |
| Nominal cross-section range | 0.13 to 4 mm² |
| Typical insulation thickness | 0.76 mm |
| Standards and tests | UL 758; IEC 60754-1 / EN 60754-1; FT2 flame rating |
What Is 250°C Silicone Wire?
Styles 3253, 30144 and 30145 form a single-core silicone wire family for equipment wiring at temperatures up to 250°C. The styles provide 300 V, 600 V and 1000 V options respectively, with listed bare copper, nickel-plated copper or nickel conductor choices.
For procurement and engineering review, TEBAOFLEX can confirm the requested construction against the operating temperature, electrical load, installation space and project documentation before production.
Selection and Ordering Details
- Choose the style by rated voltage: 3253 for 300 V, 30144 for 600 V or 30145 for 1000 V.
- Match conductor material and cross-section to the electrical load, terminal and service temperature.
- State the required style, conductor finish, size, colour, quantity and applicable equipment approval.
Engineering Notes and Usage Limits
- The 250°C value applies to the listed wire construction; terminals and adjacent components may have lower temperature limits.
- Do not assume every conductor finish or section is available under every style without confirmation.
- Current capacity depends on ambient temperature, bundling, enclosure and installation method.
Related High-Temperature Cable Options
- Style 3367 / 3135 / 3139 / 3143 200°C Silicone Wire
- Style 3099 / 3132 / 3123 / 3133 150°C Silicone Wire
- View high-temperature and specialty cables
Frequently Asked Questions
Which style should be used for each voltage?
Style 3253 is listed for 300 V, Style 30144 for 600 V and Style 30145 for 1000 V.
What temperature range is listed?
The listed operating range is -60°C to +250°C for the specified constructions.
What conductor materials are available?
The source data lists bare copper, nickel-plated copper and nickel conductor options, selected by style and application.
What conductor size range is listed?
The named style family lists nominal conductor sections from 0.13 to 4 mm². Confirm the required style-size combination.
What information is needed for ordering?
Provide style number, voltage, conductor material, cross-section, insulation colour, operating temperature, quantity and approval requirements.
Send Your Requirements
Send the model or style, conductor size, voltage, temperature, installation conditions, quantity and required test documentation. Our technical team will review the construction before quotation.





