Dold BA9010 400V, 5.5 kW, 1 Phase Soft Starter, IP30

One 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.

Machines with gear, belt and chain drives

Increases the service life of asynchronous motors and mechanical drive components

If devices are used in 230 V three-phase networks, the next higher power stage must be used for a given motor power, because the motor current determines the overall size of the device.
The starting current in the network cannot be lowered with these devices. In order to achieve this simultaneously with torque reduction, the BA9026 must be used, for example.
The BA9010 must not be operated with a capacitive load (e.g. reactive power compensation) at the output.
In the decoupled state (without load), the starting behaviour is not particularly smooth.