Clause 3 – How to understand the definition of “rated current”

rated current: current assigned to the appliance by the manufacturer.
NOTE If no current is assigned to the appliance, the rated current is
– for heating appliances, the current calculated from the rated power input and the rated voltage;
– for motor-operated appliances and combined appliances, the current measured when the appliance is supplied at rated voltage and operated under normal operation.

This corresponds to the rated power input and is determined in the same way as the rated power input.
The first note of this clause, heating appliances, because only with electric heating elements for heating, this heating element is basically purely resistive load, so you can directly follow the mathematical method of calculation, because the current is equal to the input power divided by the rated voltage (P = U/I). The second note, because the product is not a purely resistive load, so according to the formula P = U/I calculation does not give accurate results, only by the test to get the current value.
In general, some motor-operated appliances are labeled rated current in rating label, such as refrigerators. Most air conditioners will have both rated power input and rated current on the rating label.

rating label for refrigerator

rating label for air conditioner