This arrestor is used in TN-S and TT systems. the protection capability of 125 kA 10/350 microsecond per pole. The protection level lie <1.3 kV. This product ensures plug gap for identifying connections and enclosed, non extinguishing discharge gap which is used in normal commercial distributor housings. The Nominal Voltage is 230 V and impulse discharge current is 125 kA. The protection level can be 1, 3 kV.