This is the simplest design of the soft start up devices. Here the advantage is taken that the asynchronous motor can create a rotating field only when all the three phases conduct the voltage. No sooner the motor contactor connects the voltage to the device the two phases are immediately located on the motor... more

One phase is located directly on the motor; both others are controlled. These devices create very good motor soft start up with selectable start up time and initial voltage... more

In case of these devices all the three phases are controlled, whereby there is a variation possibility to control either both the Half-wave (Fully controlled process) or only one Half-wave (Half controlled start up)... more

Not only soft start up, even breaking and reversing!!!

With an introduction o the new soft start up series DSH is offering the users excellent new perspectives, as this series is not only about soft start up. Various configuration levels make the DSH is an all-rounder... more