The PCA301 is a RF controlled AC mains plug with integrated power meter functionality from ELV.

Step 1: Thats All

After a power failure, the radio plug socket remains switched off.

This is e.g. in a freezer completely unusable.

With a small conversion, the switch-on is achieved after mains return.

The diagram shows the wiring for the conversion.

Step 2: Links

I run the PCA301 alone with my FHEM server