Rated voltage: The maximum voltage at which the thermal relay can operate normally; typical values are 220V, 380V, and 600V AC.
Rated current: The rated current of a thermal relay primarily refers to the current flowing through the relay itself.
Rated frequency: Generally, the rated frequency is designed to be within the 45–62 Hz range.
Setting current range: The setting current range is determined by the relay's inherent characteristics. It reflects the principle that, under specific current conditions, the relay's operating time is inversely proportional to the square of the current.
