Soft starter, BA9010One of the three motor phases is influenced in the BA9010 by phase control in such a way that the current in this phase rises steadily. The motor torque behaves in exactly the same way during start-up. This guarantees that the drive can start up without jerking. It is thus impossible for drive elements to be damaged, because the abrupt starting torque caused by direct starting is not generated. This property enables a cost-efficient design for the drive elements. A marked reduction of starting noise is also perceived. Slippage or tipping over of items being conveyed on belts is avoided. After starting, the power electronics are bridged via an internal relay contact to minimise losses in the device. ### ApplicationsMachines with gear, belt and chain drives Conveyor belts, fans, pumps, compressors Packaging machines, door operating mechanisms Inrush current limitation for single-phase transformers ### FeaturesIncreases the service life of asynchronous motors an