UL3640 AC1100V 150℃ 180℃ FT2 Flame Test Silicone Cable
- Cable Type : UL3640
- Standard : UL758
- Rated Voltage : AC1100V
- Rated Temperature: 150℃ or 180℃
- Flame Test : FT2,FT1,VW-1
- Conductor:Bare or Tinned Copper Stranded
- Insulation : Silicone Rubber
- RoHS & Reach : Approval
- Certificate : UL,CUL
Description
UL3640 AC1100V 150℃ 180℃ FT2 Flame Test Silicone Cable
• UL certificate, Compliant with UL758 Standard
• Rating : 150, 180 deg C, 1100 Vac, Horizontal Flame
• Conductor : 16 AWG – 600 kcmil solid or stranded round, tinned or bare copper.
• Separator : Optional
• Insulation : Extruded SR,
• Covering : Optional Synthetic Yarn or Silicone Rubber.
• Use : Internal wiring of appliances.
Applications
According to the UL registry, UL 3640 is defined as a “Single Conductor with Extruded Insulation” under appliance wiring standards.
Typical ratings given by manufacturers for UL 3640 wire: 150 °C (some up to 180 °C) and 1100 V AC.
Insulation is silicone rubber (SR), conductor copper (tinned or bare), with gauge ranges covering a large span (from relatively small to heavy gauge 600 kcmil) depending on application.
Recommended Applications
-
Internal wiring of appliances and equipment where high temperature resistance is required (e.g., ovens, heaters, industrial heating equipment)
-
Wiring for power supplies, transformers, inverters, and similar electrical equipment where higher voltage and temperature rating is needed
-
Silicone‑insulated internal wiring in lighting fixtures, lighting modules, and high‑temperature lighting equipment
-
Wiring inside industrial machinery or electronic equipment operating under high temperature, high stress, or chemically demanding environments (oil, chemical exposure, vibration, etc.)
-
Internal wiring of photovoltaic (PV) inverters, energy‑storage systems (ESS), or other renewable‑energy equipment where robust insulation and higher voltage handling are required
-
Wiring in applications requiring robust flame resistance and high safety margins (silicone insulation, high‑temperature rating, flame test: FT2 / VW‑1)
Because of its silicone insulation and high‑temperature / high‑voltage rating, UL 3640 is suited for more demanding internal wiring compared with standard hook‑up wires.
Limitations
-
Intended for internal wiring (inside appliances, equipment, enclosures) — not necessarily for direct burial, permanent outdoor use, or extreme external mechanical stress (unless additional protective jacket/braid is used). Some manufacturer datasheets mention insulation plus optional glass‑fibre braid/jacket for enhanced mechanical protection.
| Conductor | Insulation | Max Resistance (Ω/km, 20°C, DC) |
|||
| AWG | No./mm | Dia.mm) | Thick.(mm) | Dia.(mm) | |
| 16AWG | 26/0.254 | 1.49 | 1.27 | 4.2 | 13.7 |
| 14AWG | 41/0.254 | 1.87 | 1.27 | 4.6 | 8.61 |
| 12AWG | 65/0.254 | 2.36 | 1.27 | 5.1 | 5.53 |
| 10AWG | 105/0.254 | 3.09 | 1.27 | 5.8 | 3.48 |
| 8AWG | 168/0.254 | 4 | 1.27 | 6.7 | 2.18 |
| 7AWG | 266/0.254 | 4.43 | 1.27 | 7.2 | 1.73 |
| 6AWG | 420/0.254 | 5 | 1.27 | 7.7 | 1.39 |
| 4AWG | 665/0.254 | 6.4 | 1.27 | 9.2 | 0.865 |
| 2AWG | 836/0.254 | 8 | 1.27 | 10.8 | 0.549 |
| 1AWG | 836/0.254 | 8.95 | 1.27 | 11.8 | 0.436 |
| 1/0AWG | 1045/0.254 | 10.02 | 1.53 | 13.5 | 0.345 |
| 2/0AWG | 1330/0.254 | 11.3 | 1.53 | 14.8 | 0.276 |
| 3/0AWG | 1672/0.254 | 12.7 | 1.53 | 16.4 | 0.219 |
| 4/0AWG | 2109/0.254 | 14.3 | 1.53 | 17.8 | 0.173 |
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