We are offering surge protection device, surge arresters slp-075 v slp-130 v slp-275 v slp-385 v slp-440 v slp-600 v spd type 2 – surge arrester replaceable varistor module,visual fault signaling varistor surge protection to be installed in low-voltage distributions at the boundary of lpz 1 and lpz 2 zones to protect the distributions and equipment against overvoltage effects induced during a lightning strike and to prevent switching overvoltage.