DEHNventil®, complete circuit for TT systems with 230/400 V / 50 Hz nominal voltage (circuit variant '3+1'), multipole combined arrester DEHNventil modular, type 1 + type 2 in accordance with EN 61643-11 on a spark gap basis, consisting of a base part and plugged-in protection modules. Maximum system availability due to RADAX-Flow follow current limitation. Enables terminal device protection. For protecting low-voltage consumer systems against overvoltages, even in the event of direct lightning strikes. Can be used according to the lightning protection zone concept at the interfaces 0A-2
