This Acti9 iPF K 40 product is a modular surge arrester. It protects 3P+N installations. The Imax maximum discharge current is 40kA .The In nominal discharge current is 15kA. The multi-pole single-piece surge arrester range is adapted for TT and TN-S earthing systems. This type 2 incoming protection surge arrester is recommended for a medium risk level. The Uc maximum continuous operating voltage in common mode (between neutral and earth) is 260VAC. The Uc maximum continuous operating voltage in differential mode (between phase and neutral) is 340VAC. The Up Voltage protection level is 1.5kV in common mode (between neutral and earth) and in differential mode (between phase and neutral). The Ue rated operational voltage is 230VAC or 400VAC +/- 10%. The product colour is white (RAL 9003). The dimensions are (W) 72mm x (H) 81mm x (D) 69mm. The product weight is 420g. The IP degree of protection is IP20 and IP40 in modular enclosure. The operating temperature is from -25°C to +60°C. The storage temperature is from -40°C to +85°C. This product complies with IEC 61643-11 and EN 61643-11 standards.