The S0.. electric and electronic spur gear motors are specially designed to be installed in industrial and chemical combustion plants.They are particularly suitable to control ball valves, butterfly valves etc. as well as or to air locks and other devices for the regulation of fluids in air conditioning or heating systems. The electric motor operates bidirectional, with high static and maintaining torques for 3-position control.On request available also analogic input signal: current or voltage change or change in the resistance value of the potentiometer.