Surge Protection Devices Type 2 (Class II, T2, C) Tested according to EN 61643-11 Nominal discharge current In 20 kA (8/20 µs) per module and 40 kA for NPE module Maximum continuous operational voltage Uc from 275 V up to 440 V AC Versions with 1+0, 1+1, 2+0, 3+0, 3+1 and 4+0 connection Plug-in module design With and without remote indication contact Device status indicator