3x20A High Power Slip Ring Large Current Collector Conductive Rotation Joint Insulation Resistance : 300 MΩ @ 500 VDC. Electronic Noise 1mΩMin. Lead Size silver plated copper UL Teflon®. Dielectric Strength :≥500 VAC @50Hz, between each circuit. ◆ Min-type wire-rolling machine. byJuly 5, 2026