Surge Protective Device, Nominal AC Voltage of the System (Uo):, 239 … 400 V, Maximum Continuous Operating Voltage (Uc):, (L-PE) - V, (L-N) - V, (N-PE) 255 V, Temporary Overvoltage Test Value (UT):, (N-PE) 1200/200ms V, Rated Service Short-Circuit Breaking Capacity (Ics):, 100 kA, Discharge Current:, Nominal (8 / 20 µs) 25 kA, I (max, 8 / 20 µs) 60 kA, I (total, 10 / 350 µs) 50 kA