SMA Upgrade Kit AC Overvoltage Protector (type I+II) for STP50-41

SMA Upgrade Kit AC Overvoltage Protector (type I+II) for STP50-41

SMA module kit for the AC surge arresters type I and II. AC surge protection is necessary to protect electrical equipment against voltage surges. Type I overvoltage protection is designed to provide protection against direct lightning strikes. Type II has a lower value than Type I and only protects against indirect lightning strikes.