The range is supplemented by devices for the respective AC mains connection. Varitector PU PV is primarily designed for installation in generator junction boxes and fully supports protection classes I and II. The surge protectors are compliant with the latest EN / IEC standards and comply with UL and EN standards for worldwide use.
The VPU PV have a maximum short-circuit rating, ie PV systems with many solar panels in a string are protected with up to 11 kA of the possible short-circuit current. No further protective elements are necessary. VPU PV is equipped with compact, pluggable arresters, which enable tool-free, fast and cost-efficient replacement - even of individual arresters.
Air circuit breaker, digital protection relay and soft starter
Installations of photovoltaic systems are often also at heights up to 4000 m. The overvoltage protection devices are designed in such a way that they also reliably protect PV systems at these exposed locations. An additional risk assessment in the direction of a power reduction - usual for installations at these heights - is not necessary.