General

The medium voltage V-Contact VSC contactors are apparatus

suitable for operating in alternating current and are normally used

to control users requiring a high number of hourly operations.

The V-Contact VSC contactor introduces the drive with permanent

magnets, already widely used, experimented and appreciated in

medium voltage circuit-breakers, into the worldwide panorama of

medium voltage contactors.

The experience acquired by ABB in the field of medium voltage

circuit-breakers fitted with drives with  “MABS”  permanent magnets,

has made it possible to develop an optimised version of the actuator

(bistable MAC drive) for medium voltage contactors.

The drive with permanent magnets is activated by means of an

electronic multi-voltage feeder. The feeders differ according to the

integrated functions and to the auxiliary power supply voltage.

Three bands of power supply are available with which all the voltage

values required by the major international Standards can be covered.

Each feeder is able to take any voltage value within its own operating band.