.The In nominal discharge current is 2.5kA. The iPRD8r ensures secondary protection of loads to be protected and is placed in cascade with the incoming surge arresters. This surge arrester is required when the loads to be protected are at a distance of more than 10 m from the incoming surge arrester. The Uc maximum continuous operating voltage in common mode (between phase and earth) is 350VAC. The Up Voltage protection level in common mode (between phase and earth) is 1.2kV. The Ue rated operational voltage is 230VAC or 400VAC +/- 10%. The product colour is white (RAL9003).The dimensions are (W) 54mm x (H) 85mm x (D) 69mm. The weight is 340g. The degree of protection is IP20 and IP40 in modular enclosure. The operating temperature is -25°C to 60°C. The storage temperature is -40°C to 85°C. This product is compliant with EN 61643-11 and IEC 61643-11 standards.