Electronic thyristor regulators ARE, ARES for stepless change of rotational speed of single-phase fan motors. Intended for installation in industrial ventilation or heating systems. Equipped with an illuminated switch, a potentiometer for smooth change of the airflow speed and an additional potentiometer for setting the minimum fan speed. IP54 protection. The "S" version (implemented on the basis of a specialized, integrated controller) has the "Soft Start" function that provides protection against the starting impulse and the associated current surge, and the function that facilitates starting the fan motor when switching on at low speed. The functionality of the ARES 10.0 regulator has been additionally extended by the introduction of an auxiliary 230V AC output with a load capacity of 2A.