Choose a slow start! The use of soft starters is the optimal alternative if direct start-up or star-delta start-up are not suitable solutions.
Choose a gradual start-up! The use of soft starters is the optimal alternative when direct start-up or star-delta start-up is not a suitable solution. Mechanical shocks to the machine or voltage drops in the power supply network cause problems, require more frequent maintenance and shorten the life of the machinery.
Unlike frequency converters, they do not use a change in voltage frequency and therefore do not allow speed control of electric motors. However, due to their simplicity of design, they are significantly cheaper than inverters.