I wish all labels are as useful as the one you show, I find many state something like: 220-240V 8.5KW 35A.
Historically I have replaced many 13A sockets and FCU's due to overheating and found the measured current is higher than that shown on on the plate. I have measured up to 15A for a 3KW product running on a 13A fuse. Accordingly when I am involved with any commissioning [regularly as I work in controls] I automatically measure the operating current and make a note for future reference.
When dealing with larger circuits like showers which are prone to up-grading and the fuse or cable is suddenly working a bit above it's limit I find the issue of actual Vs. predicted current becomes a bigger problem than it should be. A classic being upgrading from 6 or 7KW to the above example on a 30A fuse/4mm² combo then finding the actual load is 38A.
I may be more sensitive to this than others as I used to be the first on the feed to a whole street, my supply was >250V and regularly 260V, my 8.5KW shower ran >40A and was ridiculously better than my parents from the same batch running nearer to 230V
