The dry reed pipe is sheathed with an excitation coil, and the dry reed is controlled to be on and off by a magnetic field generated by electrification: Coil low voltage drive (5V/12V/24V), contacts can withstand high voltage High and low voltage electrical quarantine is very strong, and the insulation voltage can reach thousands of volts. Applications: Withstand voltage tester, photovoltaic insulation detection, high-voltage signal switching, medical high-voltage equipment Compared with the vacuum high voltage relay you asked before: Dry reed relay: small current and high voltage signal switching, fast speed, small size; can not switch high power load Vacuum high voltage relay: large current main circuit on-off (new energy main circuit), large bearing power