Replacement protection module for iPRD C40r 3P+N surge arresters. Suitable for R9L2C640 (N-PE). Optical arrester status display (green = OK/red = device faulty). U0 nominal voltage: 240 V AC (50/60 Hz). Uc maximum continuous voltage: 255 V AC (N-PE)/275 V AC (L-N). In nominal discharge current: 20 kA (L-N)/(N-PE). Imax maximum discharge current: 40 kA (L-N)/(N-PE). Uoc no-load voltage: 6 kV (L-N/N-PE). Up protection level: 1.5 kV (type 2+3) for (L-N/N-PE). Up protection level: 1.0 kV (type 3) for (L-N/N-PE). Dimensions: (W) 18 mm x (H) 45.3 mm x (D) 54 mm. Weight: 65.5 g. Integrated IP20 degree of protection. Operating temperature: -40 to +85°C. Complies with IEC 61643-11:2011, EN 61643-11:2012+A11:2018.