Power Line SPD - DIN-RAIL IEC TYPE 2/UL CSA
STP T2 40 is the series of Type 2/Class II surge protective devices for discharging voltage surges, in accordance with EN/IEC 61643-11 and certified UL 1449 4th Ed.
Suitable for the second stage of protection in supply distribution panels in which Type 1 protection devices are installed upstream, or for the first stage of protection in commercial or other applications not exposed to direct strikes and with no external lightning protection system.