7P.22 surge arresters, SPD Type 2 (1 varistor + 1 gas spark gap) for TT and TN-S single-phase systems with Neutral. Varistor protection L-N + N-PE gas spark gap and with replaceable varistor and spark gap modules. Available with remote contact for signaling the status of the varistor.

Features include:

• Suitable for AC and DC systems/applications for protection against induced and switching overvoltages
• To be installed on the border between zones LPZ 1 and LPZ 2
• Visual indicator of the varistor status – functional/to be replaced
• Signaling with remote contact of the varistor status. Connector (07P.01) included in the package (depending on the version)
• Varistor and spark gap modules, replaceable
• Compliant with EN 61643-11: 2012
• 35 mm rail (EN 60715) mounting, 17.5 mm per pole