An overview of the
Sirius 3RW Soft Starter – Multiple uses
3RW Soft Starters shall always be designed according to the desired motor operating current rating.The motor ratings listed in the selection and order data are rough guidance values for basic starting conditions (Class 10).For other starting conditions, the Soft Starter Simulation Tool (STS) is recommended.
Motor rating data (unit: kW and HP) based on IEC 60947 4‑1.
At altitudes greater than 2 000 m, the maximum permissible operating voltage is reduced to 480 V.