MRS reversal circuit with Soft starter

The MRS- Reversal circuit has an integrated soft start up, so that a very soft acceleration takes place in each direction of rotation.  This avoids the premature wear and tear at the transfer elements like for example drive belt, chains etc even though a small delay is set in the start up.

The illustrated device is suitable for the motor performances up to 4 kW. For this performance also the associated cooling plate is constructed. The reversal circuit can however be delivered also for larger motor performances.

The delay between 1-10 s can be set using the potentiometer.
The controls take place using the 24 V- Signals at max. 50 mA.
The maximum load voltage should be 480 V AC.

The dimensions are 105 x 85 x 50 mm including snap mounting. In case of smaller performances or powers the part can also be assembled directly on the heat purging surface without the cooling plate.

The hitherto electronic reversal circuits are based on the principle of electronic load relays, whereby a phase is interchanged only for the direction rotation change. The circuit takes place in contact less manner and without wear and tear in the zero-crossing. High switching sequences with change in rotation direction has consequentially higher load or stress on the engaged transfer elements.

Is also available with soft start up.