Lightning current arrester system solution type 1 (class B) according to DIN EN 61643-11. LightningController MC 50-B/VDE and MC 125-B/NPE mounted in insulating housing IP 65, housing can be sealed, pulse current 100 kA 10/350 s BET tested, meets the requirements of the VDN guideline 2nd edition 2004, protection level < 2.0 kV, encapsulated non-blow-out spark gap, suitable for TNS and TT network systems