With the non-contact magnetic coupling, there is always a speed difference between the motor and the load side. This means there is when you start an installation with all Zytec couplings automatically you have a mechnical soft start of 1-2 seconds. The engine also does not come in harse. In combination with a starter relay, the soft start period can, if necessary, be extended even further (5, 10, 30, 60 seconds, 2 minutes, 5 minutes, etc). This is a simple alternative solution with respect to an electric soft start with a Variable Frequency Drive (VFD).
Systems with an electrical motor could during the start (sometimes uncontrolled run-up) cause high starting currents or high torque peaks. The contact-free magnetic coupling has an automatic mechanical soft start. It does not matter whether if it is applied in low or medium voltage installations.