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Standard temperature rated coils use PVC insulated stranded lead wire, UL style 1007 rated for 80°C at 300 volts. They also meet CSA type TR-64, 90°C at 600 volts; and MIL-W-16878/2, 105°C at 1000 volts. High temperature coils use Teflon type E, TFE lead wire and meet MIL-W-16878/4A rated at 200°C at 600 volts.