In process technology, industrial manufacturing, or in the field of power generation and distribution, the power supply systems must be protected reliably and efficiently against lightning and surge damage to avoid costly repairs and breakdowns.
The new VARITECTOR PU I surge protection devices are designed for use in industrial energy networks. One of their designated functions is the protection of 400/690 V systems in wind turbines. The self-monitoring surge protection devices are available for a discharge current of 25 kA and as different variants for use in all types of networks.
The new rail clip, which can be operated entirely without tools, permits time-saving installation.
Status display and signalling contact
The VPU AC I 440V series has a fully visible status display. Versions with a signal contact can be installed quickly using a screw/plug connection; they provide reliable information on the status of the protective function.
The VPU AC I 440V surge protection devices have been tested as combined arresters of type I and II. They protect against both direct lightning strikes and overvoltages.
Overview product innovations
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