Fire brigade disconnector

So that the fire brigade can quickly disconnect photovoltaic systems from the rest of the DC grid of an object in case of danger, so-called fire brigade switches exist. The safety switches interrupt the connection between the live solar modules and the rest of the installation. The switch itself is therefore usually located in the direct vicinity of the solar modules. However, it is usually actuated via another switch, e.g. a key, which then transmits the signal to the disconnector.