Type 7P.27 surge arresters, SPD Type 2 (2 varistors) for single-phase TN systems with Neutral with v..
Type 7P.23.9 surge arresters, SPD Type 2 (3 varistors) for photovoltaic systems 1020 V DC Protects d..
Type 7P.05 surge arresters, SPD Type 1 + 2, for TN-S systems three-phase with Neutral. Varistor + GD..
Type 7P.12 surge arresters SPD Type 1 + 2 with low Up value, for TT and TN-S single-phase systems wi..