Question about Schönenberger Pur

Explained in layman's terms ( I am the layman) has to do with fusing. T13 up to 10 A and T 23 (square pins and socket accordingly) up to 16 A.
Genoa explained and with pictures here: https://de.wikipedia.org/wiki...
I wish you all a happy holiday season and a happy new year in 2020.

T23 16A T13 13A

The 13A refers to the LS - the socket can handle 10A continuous load.