UL3661 High Voltage Silicone Insulated Specialty Lead Wire – BYC Cables

Product Overview

Feature Specification
Standard UL 3661
Rated Voltage 1100V Alternating Current (AC) (High-Voltage Rated)
Temperature Range -60°C to +180°C (-76°F to +356°F)
Conductor Material Tinned Copper or Nickel-plated Copper Stranding
Insulation Material Silicone Rubber (High-Performance Grade)
Additional Protection Optional Fiberglass Braiding available
Available Colors White, Blue, Red, Black, Brown, Yellow, Green, Transparent, Yellow/Green
Applications Internal wiring for heavy-duty industrial machinery, high-voltage power supplies, and specialized heating systems.

Technical Parameter Table

American Wire Gauge (AWG) Conductor Construction (Number x Diameter in mm) Conductor Diameter (mm) Insulation Thickness (mm) Finished Outside Diameter (mm) Maximum Conductor Resistance at 20°C (68°F) (Ohm/km)
16 7 / 0.50 1.5 0.94 3.4 14.6
15 33 / 0.254 1.7 0.94 3.6 11.3
14 41 / 0.254 1.9 0.94 3.8 8.96
13 52 / 0.254 2.1 0.94 4.0 7.1
12 65 / 0.254 2.4 0.94 4.2 5.64
11 83 / 0.254 2.7 0.94 4.7 4.48
10 75 / 0.30 2.6 0.94 5.0 3.55
9 53 / 0.40 3.4 0.94 5.9 2.81
8 119 / 0.30 4.3 0.94 6.3 2.3
7 84 / 0.40 4.8 0.94 7.2 1.79
6 106 / 0.40 5.3 0.94 7.8 1.42
5 133 / 0.40 6.0 1.53 9.1 1.12
4 168 / 0.40 6.8 1.53 9.9 0.89
3 213 / 0.40 6.6 1.53 10.7 0.707
2 268 / 0.40 8.5 1.53 11.6 0.56
1 338 / 0.40 9.5 1.53 12.7 0.449
1/0 665 / 0.32 10.9 1.53 14.3 0.355
2/0 538 / 0.40 12.2 2.04 16.8 0.282
3/0 677 / 0.40 13.7 2.04 18.5 0.223
4/0 854 / 0.40 15.4 2.04 20.5 0.177

Professional Performance Features

  • High-Dielectric Integrity: Specifically engineered with specialized silicone rubber to handle sustained voltages up to 1100V Alternating Current. This makes it a robust choice for high-voltage internal equipment wiring where safety margins are critical.
  • Superior Thermal Endurance: Capable of maintaining physical flexibility and electrical stability across a wide thermal spectrum, ranging from cryogenic sub-zero environments at -60°C (-76°F) to constant high-heat exposure up to +180°C (+356°F).
  • Advanced Conductor Protection: By utilizing Tinned Copper or Nickel-plated Copper, the conductor remains highly resistant to environmental oxidation and chemical corrosion, ensuring reliable electrical connectivity in humid or corrosive industrial zones.
  • Exceptional Pliability: The combination of soft silicone insulation and high-strand conductor stranding allows for a superior bend radius, facilitating easier installation within compact cabinets or complex cable harnesses.
  • Environmental and Chemical Resistance: Inherently resistant to ozone, UV radiation, and moisture. The modified silicone jacket also provides excellent protection against various industrial fluids and aging.

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