Noark surge protection devices are used to protect electrical installations against direct, low-intensity lightning strikes. This line of surge arresters consists of Class 1+2 devices. They are suitable for lightning protection zones LPL III, IV according to EN 62305 in a 3-phase TN-C grid, where the total lightning current introduced into the electrical installation is 37.5 kA, and the stroke can reach 75 or 100 kA depending on the configuration and location of the grounding point, the grounding of the lightning protection system, and the installation location of the surge protection device. The design of the Ex9UE1+2 12.5 surge arresters is based on varistor elements. It ensures a short response time and meets the criteria for both Class I and II. The modular design with a replaceable insert allows for quick and easy replacement of functional modules in case they burn out due to frequent overvoltage peaks.
B2B
Buying wholesale? Register your company and see B2B prices.
