Product Overview: UL 3530 Silicone Wire is a single-core 600 V, -60°C to +150°C high-temperature hook-up wire combining tinned or bare copper conductors (10 AWG to 26 AWG) with supple extruded silicone rubber insulation for internal wiring in totally enclosed appliances and thermal equipment.
1. Application & High-Temperature Wire Family Comparison
UL 3530 provides wide thermal elasticity (-60°C to +150°C) where ordinary 80°C–105°C PVC hook-up wires embrittle near warm components inside enclosed equipment:
- Totally Enclosed Appliances: Internal power and control harnesses in commercial ovens, heaters, drying cabinets, and food-service equipment.
- Lighting & Thermal Controls: Lead wiring inside enclosed luminaires, thermostats, and temperature-control assemblies protected against sharp edges.
- Compact Control Panels: Flexible internal jumpers routed near warm resistors, transformers, or power electronics (not for outdoor, direct-burial, submerged, or drag-chain motion).
| High-Temp Wire Family | When to Specify | Engineering Selection Caution |
|---|---|---|
| UL 3530 Silicone (150°C / 600V) | Ultra-flexible unbraided 150°C, 600 V internal wiring in totally enclosed appliances | Protect plain silicone rubber from sharp sheet-metal edges and external abrasion |
| UL 3122 Silicone + Fiberglass (200°C / 300V) | Higher 200°C thermal margin with outer fiberglass textile abrasion protection | Lower 300 V rating; account for braid fraying control during stripping |
| UL 3321 XLPE (150°C / 600V) / UL 3287 | Cross-linked polyolefin toughness with firmer mechanical cut-through resistance | Stiffer bend feel than elastomeric silicone rubber |
| UL 10362 PFA Fluoropolymer (250°C / 600V) | Up to 250°C temperature capability, chemical inertness, and ultra-thin wall OD | Different stripping tools and conductor plating rules (silver/nickel above 150°C) |
2. Wire Construction (Unbraided Silicone AWM Build)
UL 3530 uses a clean two-element single-core construction without an external fiberglass jacket for rapid automated stripping and termination:
3. Technical Characteristics & Enclosure Rules
Evaluate terminal temperature ratings, grommet edge protection, and ampacity derating inside the completed appliance enclosure:
| Parameter | Specified Engineering Value |
|---|---|
| Style Reference | UL 3530 Heat-Resistant Appliance Wiring Material (Single-Core) |
| Rated Voltage | 600 V AC |
| Operating Temperature Range | -60°C to +150°C (for the confirmed construction) |
| Conductor Options | Tinned copper or bare copper; stranded (table below) or solid per order |
| Documented Gauge Span | 10 AWG to 26 AWG |
| Installation Boundary | Internal wiring of totally enclosed appliances; protect from sharp edges, oil immersion, and unsupported mechanical pull |
4. 10–26 AWG Reference Specification & Ordering SKU Table
Reference stranded-conductor series from TEBAOFLEX technical data (final strand count, wall thickness, and OD are confirmed on the order specification):
| Part SKU | AWG | Stranding (No. / mm) | Max. 20°C Conductor Resistance (Ω/km) | Conductor OD (mm) | Insulation Wall Nom. / Min. (mm) | Overall Diameter (mm) |
|---|---|---|---|---|---|---|
TF-3530-10AWG | 10 AWG | 105 / 0.251 | 3.54 | 3.05 | 1.15 / 1.02 | 5.35 ± 0.15 |
TF-3530-12AWG | 12 AWG | 65 / 0.251 | 5.64 | 2.36 | 0.78 / 0.69 | 3.95 ± 0.15 |
TF-3530-14AWG | 14 AWG | 41 / 0.251 | 8.96 | 1.90 | 0.78 / 0.69 | 3.46 ± 0.15 |
TF-3530-16AWG | 16 AWG | 26 / 0.251 | 14.60 | 1.50 | 0.78 / 0.69 | 3.06 ± 0.10 |
TF-3530-18AWG | 18 AWG | 7 / 0.390 | 23.20 | 1.19 | 0.78 / 0.69 | 2.75 ± 0.10 |
TF-3530-20AWG | 20 AWG | 7 / 0.300 | 36.70 | 0.92 | 0.78 / 0.69 | 2.48 ± 0.10 |
TF-3530-22AWG | 22 AWG | 7 / 0.254 | 59.40 | 0.76 | 0.78 / 0.69 | 2.32 ± 0.10 |
TF-3530-24AWG | 24 AWG | 7 / 0.200 | 94.20 | 0.61 | 0.78 / 0.69 | 2.17 ± 0.10 |
TF-3530-26AWG | 26 AWG | 7 / 0.160 | 150.00 | 0.48 | 0.78 / 0.69 | 2.05 ± 0.10 |
5. Frequently Asked Questions
What is UL 3530 silicone wire used for?
UL 3530 is used for internal power and control lead wiring inside totally enclosed appliances requiring a 600 V, 150°C silicone rubber insulated single-core wire.
What conductor sizes and resistances are covered?
The documented range spans 10 AWG (3.54 Ω/km max at 20°C) to 26 AWG (150.00 Ω/km max at 20°C); alternative solid or fine-stranded designs can be confirmed separately.
Should I specify tinned copper or bare copper?
Tinned copper protects strands against oxidation at 150°C and aids soldering/crimping; bare copper is available where specialized welding or crimp tooling requires unplated copper.
How does UL 3530 compare with PVC hook-up wire?
UL 3530 stays supple from -60°C to +150°C, providing critical thermal head-room inside warm appliance housings where standard 80°C–105°C PVC insulation hardens or cracks.
Can colour, jacket printing, and cut lengths be customized?
Yes—ten standard silicone colours, custom surface printing, pre-cut harness lengths, and spool packaging are available against confirmed MOQs (explore more in High-Temp & Specialty Cables).
What details are needed for an accurate UL 3530 quotation?
Provide AWG size, solid or stranded build, tinned or bare copper, operating temperature, colour breakdown, print text, spool/cut length, quantity, and required inspection documents.
Request UL 3530 Silicone Wire Spec Confirmation & Quote
Send your required AWG size (10–26 AWG), tinned/bare copper stranding, colour schedule, and quantity. TEBAOFLEX will verify production tolerances and return a fast factory quote.
