Extended Product Type:OVR T1 3N 25 255-7 Product ID:2CTB815101R8800 Technical Type of Low Voltage Distribution System:TT TN-S Nominal AC Voltage of the System (Uo):230 / 400 V Number of Protected Poles:4 Arrester Class:I Product Main Type:T1 Standards:IEC 61643-1 / EN 61643-11 Version:Fix Discharge Current:Nominal 25 kA Maximum 60 kA Total 175 kA