This PV module level rapid shutdown communicates via Power Line Communication (“PLC“), supporting SunSpec™ Alliance protocol.

The solution can retrofit conventional modules and shuts them down fully meeting the requirements of NEC 2017.

Output voltage is limited to 1 V when “keep alive“ signal is absent.

When the integrated PLC receiver detects “keep alive“ signal from a SunSpec enabled inverter or our special RSD-String Reader, modules are connected to the string. In absence of this signal, the sensor automatically shuts the modules off. To avoid deadlock, the system provides 1 volt regulated output.

Besides the RSD function, the sensor provides full SunSniffer® functionality: precise measurements of the module, and sophisticated analysis by artificial intelligence in the Webportal.