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 due to 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
whole installation is exposed to fewer malfunctions. The
arresters are co-ordinated using technical means. This
means that decoupling between Types I, II and III is unnecessary. The arresters are tested according to product
standard IEC 61643-11 / DIN EN 61643-11 and can be
installed in systems according to IEC 61643-12 / VDE
0675-6-12 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 depending on the particular mains network type
and voltage level. A special Type I and Type II protective
device is even available for photovoltaic applications.
