83020147https://www.cca.co.uk/image.php?filename=83020147.jpg&stockcode=83020147&category=000700440004&width=1000&height=1000STP T2 40 is the series of Type 2/Class II 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.
STP T2 40 is the series of Type 2/Class II 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.