Soft starter, 3p, 22kW, Ie=41A

The types of DS6 series are soft starters for applications with normal switching frequency for the performance range from 22 kW to 110 kW.All versions allow a significant reduction of the inrush current for lamps and heaters (with an unearthed star point) by setting a short soft start ramp time (at least 1 s). the special actuation method (asymmetrical trigger phase control / Eaton patent) for the soft starter function avoids the DC components that would normally occur in two-phase-controlled soft starters. This suppresses the generation of an elliptical rotating field, which would cause uneven motor starting and increase the motor’s acceleration.the true run behavior of the DS6 is therefore comparable with that of a three-phase-controlled soft starter.The ramp time and the start voltage can be set using a potentiometer. The time can be adjusted between 1 to 30 s (start) or 0 to 30 s (stop), the starting voltage (starting torque) from 30 to 100 % mains voltage. Internal bypass relay in DS6-340-MX models: switches on automatically after the end of the ramp, bypassing the internal thyristors. typical fields of application for the soft starter: pump drive pressure surges are avoided by the soft start. The mechanical load on the whole plant is reduced and its service life increases. Fan drives: soft starting prevents drive belt slippage and premature wear. This reduces operating costs and extends the service life of the system. Conveyors: the conveyor belt starts up gently instead of with a jerk. the conveyed goods do not fall over, the mechanical stress on the conveyor is reduced and its lifespan increased.