MERSEN ITALIA SPA - XES83020134 SPD T2,40kA,Uc275V,3+0 TNC,3P,

STP T2 40 is the series of Type 2/Class II devices for discharging voltage surges, in accordance with EN/IEC 61643-11. Suitable for the second stage of protection in supply distribution panels in which Type 1 protection devices are installed upstream, orfor the first stage of protection in commercial or other applications not exposed to direct strikes and with no external lightning protection system.