Power units CND/S e CND/A- -are equipped with a luminous switch ON/OFF and with a switch I/II to regulate output tension (4/5.000 V. for CND/S model - 7/8.000 V for CND/A model ). To each power unit it is possible to connect four antistatic bars or nozzles for a totale of 10 meters including high tension cable.

The feeders have a structure in painted steel.