This combined lightning current and surge arrester is for three phase systems.
This 4 DIN rail mounted type 1 and 2 combined lightning and surge arrester is for grid AC connections.
It is to be used when the installation has a fitted lightning protection system on TNS supply systems.
It will need to be fitted at the origin of the supply with type 2 SPD closer to the invertor.
This arrester meets the requirements of BS7671 Amendment 1 section 534.
Keywords: DSHTNS255, DEHN, Three Phase Surge Protection