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In the past, and sometimes still today, Star/delta switches with their typical click-clack switching were once the only solution for switching on especially heavy motors, in order to get the peak load down. Soft starters are the current versions that limit starting currents and gradually ramp up motors. Patented vacuum soldering techniques make our soft starters unique. Easy to fuse due to extremely high short-circuit resistance. Unlimited start and stop due to optimal heat transfer via the integrated cooling element. Choose your version according to the actual and nominal load.