The Phoenix Contact 1044388 is a plug-in lightning and surge protective device designed for robust protection in 2-phase power supply networks operating in isolated conditions. This Type 1+2 / Class I+II SPD efficiently discharges high-energy surges, serving as the first line of defense in a multi-stage surge protection strategy. Ideal for safeguarding electrical systems, this device integrates seamlessly with the VAL-MS-T1/T2 PT base element, ensuring reliable performance and enhanced safety. Its N-PE total current spark gap further optimizes protection, making it a critical component for industrial applications requiring high-level surge mitigation.