The PHOENIX CONTACT part VAL-SEC-T2-3S-350-FM is a plug-in surge arrester designed for use in 3-phase power supply networks with a separate N and PE (5-conductor system: L1 - L2 - L3 - N - PE). This surge arrester is in accordance with Type 2/Class II standards, providing reliable protection against transient voltage surges.Featuring a remote indication contact, this surge arrester allows for easy monitoring and alerts in the event of a surge. It is designed to safeguard sensitive equipment and electrical systems from potential damage caused by lightning strikes or other electrical disturbances.With its plug-in design, installation and maintenance of the surge arrester is simple and efficient. It is a reliable and cost-effective solution for ensuring the protection and uninterrupted operation of your electrical infrastructure.