Protection device against impulse overvoltages K2P SVR25-230 3+0 C, cat.no.?123 021.

Three-pole surge arresters of test classes I, II, III combined type for three-phase networks with earthing system type TN-C. Uo = 230/400 V AC. Iimp(10/350)= 25 kA. With remote signalling. Installed within 0A(V) - 2 lightning protection zones (in accordance with GOST R IEC 62305-1 and SO-153-34.21.122). They are intended for protection of equipment in low-voltage power distribution systems with air or cable power input. The device is mounted on a 35 mm DIN-rail by means of a special latch on the rear side of the housing. Assembled on the basis of zinc-oxide varistors and gas-filled arrester, included in each pole in series - "valve arrester". They exclude leakage currents.