This surge protection device is a single pole system with the protection capability of 50 kA 10/350 microsecond per pole. The protection level lie <1.3 kV. The line follow current quenching capacity I-peak is 10 kA. This product ensures plug gap for identifying connections and enclosed, non extinguishing discharge gap which is used in normal commercial distributor housings. The Operating Voltage is 320 V and impulse discharge current is 50 kA. The protection level can be 1, 3 kV.