Oil-hydraulic control unit comprising: - a pump arranged for sending oil to a pressure unit arranged to pressurize said oil and to send it through a hydraulic circuit towards at least one actuator of a switch of a railway track, said hydraulic circuit comprising a plurality of canals, the at least one actuator being connected to at least two canals of said plurality of canals for being operated; - a control device connected to said pump and arranged for controlling the pump based on an activation signal coming from a remote control unit arranged for controlling switch operations of the switch; - at least two valves (16a, 16b) for the at least two canals connected to the at least one actuator, the at least two valves (16a, 16b) having a calibrating value and being arranged so that when a first valve breaks, a second valve starts sending the oil flowing in the at least two canals towards a reservoir of the oil-hydraulic control unit so that the internal pressure of the oil-hydraulic control unit starts decreasing thus not being able to exceed a predetermined minimum value corresponding to said calibrating value, and the pressure of the oil going to the at least one actuator decreases, thus regulating the pressure of the oil flowing into said at least two canals, characterized in that it further comprises: - a timing unit arranged to send control signals to the remote control unit representative of the correct operation of the oil-hydraulic control unit; wherein the timing unit is connected to the control device and arranged to cut off the power of the control device based on an increase of the value of the pressure of the oil going to the switch and not to cut off the power of the control device if the internal pressure of the oil-hydraulic control unit does not reach said predetermined minimum value, the predetermined minimum value being below a threshold value for which the timing unit is configured to send the control signals to the remote control unit, and wherein the remote control unit is configured for detecting that a valve of said at least two valves (16a, 16b) has been damaged if after a predetermined time starting from the sending of the activation signal, no control signals have been received. - a pump arranged for sending oil to a pressure unit arranged to pressurize said oil and to send it through a hydraulic circuit towards at least one actuator of a switch of a railway track, said hydraulic circuit comprising a plurality of canals, the at least one actuator being connected to at least two canals of said plurality of canals for being operated; - a control device connected to said pump and arranged for controlling the pump based on an activation signal coming from a remote control unit arranged for controlling switch operations of the switch; - at least two valves (16a, 16b) for the at least two canals connected to the at least one actuator, the at least two valves (16a, 16b) having a calibrating value and being arranged so that when a first valve breaks, a second valve starts sending the oil flowing in the at least two canals towards a reservoir of the oil-hydraulic control unit so that the internal pressure of the oil-hydraulic control unit starts decreasing thus not being able to exceed a predetermined minimum value corresponding to said calibrating value, and the pressure of the oil going to the at least one actuator decreases, thus regulating the pressure of the oil flowing into said at least two canals, characterized in that it further comprises: - a timing unit arranged to send control signals to the remote control unit representative of the correct operation of the oil-hydraulic control unit;