30 hp motor soft starter, 22 kW three phase 240v, 415v, 480v, 690v AC motor starter for choice.

Tips: The difference between soft starter and variable frequency drive (VFD)
From the application, the soft starter and variable frequency drive (VFD) are two completely different products. The soft starter is actually a device that controls the voltage and limits the starting current, uses for starting motor and only changes the output voltage amplitude without changing the frequency. And VFD is used for the device needed speed governing, the output not only changes the voltage but also changes the frequency. From the function, VFD has all the functions of the soft starter, so it can be said that VFD is a more powerful soft starter.
Although the soft starter solves the problem of motor starting, but there is no significant energy saving effect. When start using energy-saving operation mode, no-load energy saving is 40%, and load energy saving is only 5%. VFD not only solves the big impact current caused by the motor starting, but also has the good energy saving effect and the frequency conversion ability.