Patent ID: 7948203

Claim:
Arrangement for the control of a soft start or a soft finish of a three phase current motor ( 1 ), so called soft starter which arrangement is pre-connected for the starting of heavy mechanical, electrical, or hydraulic drives, wherein individual device groups of a power block ( 4 ) with thyristors ( 16 ), a power electronic ( 5 ) as well as with contactor are together installed in a switch cabinet ( 2 ), wherein at least one switch cell ( 3 ) is formed in the switch cabinet ( 2 ), which switch cell ( 3 ) comprises at least the three phase power block ( 4 ), the associated power electronic ( 5 ) as well as the required contactors, and in a frame ( 7 ) with surrounding switch cell walls ( 9 b ) and an attachment of support insulators ( 28 ) running in the mounting direction ( 26 ), wherein the support insulators ( 28 ) as a unit are furnished easily demountable from the front and in reverse incorporatable and without attachment at a rear or side wall ( 8 ) of the switch cabinet ( 2 ) and that in contrast a separating switch ( 9 ) attached at the switch cabinet wall ( 2 ) and connectable upon insertion or disengageable upon removal with a collection rail connection ( 10 ) by way of a pluggable contact coupling ( 10 a ).