In the European Union (EU), the requirements for Rapid Shutdown (RSD) may vary among member states, as each country may have its own specific regulations and standards. However, there are a few common RSD solutions that can be adapted to meet EU requirements. Here are some examples:

1.Module-Level Power Electronics (MLPE): MLPE solutions such as power optimizers or microinverters can be used to achieve RSD in EU installations. These devices are installed at the module level and allow for individual panel-level shutdown. MLPE solutions provide high granularity and flexibility, ensuring rapid de-energization of the system.

2.DC Isolators: DC isolators are devices installed in the DC circuit of a solar installation. They provide a means to disconnect the DC power from the solar panels and isolate the system in case of an emergency or maintenance. DC isolators with RSD functionality are available, allowing for rapid shutdown of the DC circuit when required.

3.String-Level RSD: Similar to the US, string-level RSD solutions can be implemented in the EU. These solutions involve the use of rapid shutdown devices (RSDs) installed at the string level of the solar array. When a rapid shutdown signal is initiated, the RSDs shut down the entire string, reducing the voltage and current to a safe level.

4.Inverter-Integrated RSD: Inverter-integrated RSD solutions are also applicable in the EU. Certain solar inverters come with integrated RSD functionality, allowing for remote control and rapid shutdown of the system. These inverters are designed to meet the relevant EU regulations and standards.

It’s important to note that the specific RSD requirements and standards can vary among EU member states. It is crucial to consult with a qualified solar installer or electrical professional familiar with the regulations in your country to ensure compliance with the appropriate RSD requirements. They will be able to guide you on the specific RSD solutions that are suitable for your EU installation.