UL 3232 Silicone or Nylon 105°C 300V High Temperature Wire is a single-core hook-up wire with a stranded copper conductor, silicone rubber insulation and an optional nylon covering. The documented construction is available from 16 AWG to 26 AWG, with a 300 V rating and 105°C rated temperature. It is a practical choice where flexible internal wiring, controlled outside diameter and an optional abrasion-protective outer covering are specified.
For a quotation, send TEBAOFLEX the required AWG size, conductor stranding, preferred insulation colour, nylon-covering requirement, installation condition and required length. We will confirm the build against the application before production.
What is UL 3232 silicone wire?
UL 3232 wire is a 300 V, 105°C silicone-insulated single conductor used for internal equipment wiring. In this construction, fine stranded copper forms the conductor; silicone rubber supplies the primary insulation; and a nylon covering may be added over the insulation. The optional outer layer is useful when the installation needs an additional surface covering without changing the basic single-core construction.
Key construction and selection data
- Voltage and temperature: 300 V and 105°C.
- Conductor: stranded copper, with documented sizes from 16 AWG through 26 AWG.
- Insulation: silicone rubber.
- Optional covering: nylon over the silicone insulation.
- Reference bend radius: 10 × the finished cable diameter.
- Flame-performance reference: horizontal flame performance is identified in the supplied product data.
UL 3232 wire specifications
| Parameter | Documented value |
|---|---|
| Product model | UL 3232 |
| Product type | Single-core silicone-insulated hook-up wire |
| Rated voltage | 300 V |
| Rated temperature | 105°C |
| Conductor | Stranded copper |
| Insulation | Silicone rubber |
| Outer covering | Optional nylon |
| Conductor-size range | 16 AWG to 26 AWG |
| Reference bend radius | 10 × finished outside diameter |
Size and dimensional guide
The following table provides the documented stranded-conductor constructions and finished outside diameters. Finished dimensions include the listed 0.44 mm silicone insulation and 0.11 mm covering thickness. Confirm final dimensions for a specified colour, construction and order requirement.
| AWG | Stranded conductor (No./mm) | Silicone insulation thickness | Covering thickness | Finished outside diameter |
|---|---|---|---|---|
| 16 AWG | 26 / 0.254 mm | 0.44 mm | 0.11 mm | 2.60 ± 0.10 mm |
| 18 AWG | 34 / 0.18 mm | 0.44 mm | 0.11 mm | 2.32 ± 0.10 mm |
| 20 AWG | 21 / 0.18 mm | 0.44 mm | 0.11 mm | 2.06 ± 0.10 mm |
| 22 AWG | 17 / 0.16 mm | 0.44 mm | 0.11 mm | 1.87 ± 0.10 mm |
| 24 AWG | 11 / 0.16 mm | 0.44 mm | 0.11 mm | 1.72 ± 0.10 mm |
| 26 AWG | 7 / 0.16 mm | 0.44 mm | 0.11 mm | 1.59 ± 0.10 mm |
Where to use silicone insulated nylon covered wire
Typical uses include internal wiring in electrical equipment, control assemblies, heating equipment, lighting assemblies and compact industrial devices where the voltage, temperature and installation conditions match the specified construction. The optional nylon covering should be selected only when the installation needs an additional surface covering.
This product is designed for fixed internal wiring applications within its confirmed design limits. It is not a substitute for a multi-core control cable, outdoor power cable, submersible cable or a product that requires a different voltage or environmental construction.
How to specify UL 3232 wire for quotation
- Choose the conductor size from 16, 18, 20, 22, 24 or 26 AWG.
- State whether the optional nylon covering is required.
- Provide the insulation colour, required length and packaging preference.
- Describe the equipment, routing and movement condition so TEBAOFLEX can confirm the construction.
For related high-temperature internal wiring options, browse the high-temperature and specialty cable range or compare the UL 1330 FEP high-temperature wire where a 200°C, 600 V FEP construction is required.
Frequently asked questions
Is UL 3232 wire a single-core cable?
Yes. The documented design is a single stranded copper conductor with silicone insulation and an optional nylon covering.
What sizes are available?
The documented range is 16 AWG through 26 AWG. The stranding and finished diameter for each listed size are shown in the size table above.
Does every UL 3232 silicone wire have a nylon outer layer?
No. The nylon covering is optional in the referenced construction. Include this requirement in the enquiry so the ordered build can be confirmed.
Can TEBAOFLEX supply a customised length or colour?
Submit the required AWG, insulation colour, nylon-covering choice, length and application details. TEBAOFLEX will confirm the suitable production configuration before quoting.
Need a 300 V silicone hook-up wire? Send Your Requirements for a configuration check and quotation.
