This Acti9 iPRD40 surge arrester protects 3P installations. It allows quick replacement of damaged cartridges. This Type 2 device is recommended for high risk level and incoming panel board. It can be turned over to allow the phase/neutral/earth cables to enter through either the top or the bottom. The associated circuit breaker Isc breaking capacity can go up to 50kA. This Acti9 iPRD40 is compatible with TT and TN-S earthing system. The Uc maximum continuous operating voltage in common mode (between phase and earth) is 350VAC. The Up maximum voltage protection level in common mode (between phase and earth) is 1.4kV. The Ue rated operational voltage is 230VAC +/- 10%. The product colour is white (RAL9003).The dimensions are (W) 54mm x (H) 85mm x (D) 69mm. The weight is 317g. 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.