SPDs for energy systems

Weidmüller VPU I (Type I), VPU II (Type II) and VPU III (Type III) surge protection products effectively reduce the interference coupling that can occur from transient surge voltages, even significantly below the limits prescribed by insulation co-ordination according to EN 60664-3 / DIN VDE 0110-3. This means that the entire system is exposed to less malfunction.

The co-ordination of the arresters is achieved by technical means. This means that decoupling between types I, II and III is not necessary. The arresters are tested according to product standard IEC 61643-11:2012 / DIN EN 61643-11:2012 and can be installed in systems according to IEC 61643-12 / VDE V0675-6-12 and IEC 62305-4 / VDE 0185-4. This lightning and surge protection device is suited for installation in power supply systems. Weidmüller offers different products for different mains types and voltage levels. Even for photovoltaic applications, there is a special protection according to EN 50539-11/ VDE 0675-39-11: 2010 available.