... wear-resistant, high temperature resistant, smooth surface.Specification of 4AWG Silicone Wire:● Nominal Voltage: 600V● Testing Voltage: 2000V● Temperature Range: -60°C ... the 6AWG, 8AWG, 10AWG, 12AWG, 14AWG,16AWG, 18AWG, 20AWG, 22AWG silicone cables.