Thiết bị chống sét lan truyền Kumwell KZ02

Kumwell KZ02.*.pv.ds is lightning arrester class l+ll (type 1+2) according to IEC 61643-11. It is designed for protection of positive and negative busbars of p******o-voltaic systems against the surge effects. These arresters are recommended for  use in the Lightning Protection Zones Concept at the boundaries of LPZ 0-2 (according to IEC 62305). Particular varistor sectors connected between terminals L+, L- and PE are equipped with fitted internal disconnectors which are activated when varistors fail (overheat). Failure indication of these disconnectors is partly mechanical (by red signaling target) and partly remote monitoring (by potential free switching contacts).