Hilfe benötigt! Wofür ist das?

[High powered three phase electrical socket for these kinds of plugs.](https://www.okov.me/mn/proizvodi/gajtan-sa-trofaznim-utikacem-ppj-5x25mm2-2m-tehnoelektro)

They were/are used for high voltage appliances like ovens, tools, etc.

Hyper fast charging port!
(Usually stove outlet)

3 phase socket. 380V/50Hz. Dedicated for devices that consume high powers. Somewhere in house there must be 3 phase meter, and you should pay that 3 phase subscription and consumption regularly monthly.

If it’s disconnected, socket just remained to be there, connected to single phase.

For forks