Electric ion with safety system controlling electric heater depending on total supply time

Electric iron comprising a sole plate heated by means of an electric heating resistance (2) and a system of thermal regulation, in which a control member (4) indicates the reference value of temperature corresponding to the cloth to be ironed, a detector (5) gives the temperature of the sole plate, and a control system (6) controls the opening and closing of the supply circuit (1) of the electric heating resistance (2), as a function of the difference between the reference value and the measured value,

• wherein the iron further comprises a safety system (10) comprising an electronic module (9), which receives from the control system (6) information as to closure of the supply circuit (1) of the electric heating resistance (2), counts over a fixed time interval the number of alternations between open and closed conditions of the supply circuit (1) of the electric heating resistance (2), and opens the supply circuit (1) of the electric heating resistance (2) if the number thus obtained is below a predetermined threshold value.