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VSHC-12A Vacuum Contactor

Basic Info

Model No.: VSHC-12-400A

Product Description


The medium voltage VSHC contactors are apparatus suitable for operating in alternating current and are normally used to control users requiring a high number of hourly operations.

The VSHC 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 SUNWAY 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.


The VSHC contactors are suitable for controlling electrical apparatus in industry, in the service sector, in the marine sector, etc. Thanks to the breaking technique with vacuum interrupters, they can operate in particularly difficult environments They are suitable for control and protection of motors, transformers, power factor correction banks, switching systems, etc.

Fitted with suitable fuses, they can be used in circuits with fault levels up to 1000 MVA (VSHC1.5 -VSHC12).




Type Form VSHC-12A
Rated work voltage kV 12
Rated work current A 160 250 400 630
Rated frequency Hz 50/60
Rated thermal current A 160 250 400 630
Rated making capacity A 1600 2500 4000 6300
Rated breaking capacity A 1280 2000 3200 5040
Limit breaking capacity A 1600 2500 4000 6300
Rated short time current A/s 1600/4 2500/4 4000/4 6300/4
Operating cycle Long time Time/hr 300
Short time Time/hr 600
Method of operation NON-LATCHED
Mechanical life man. 1000000
Electrical life AC-3 man. 250000
AC-4 man. 100000
Operation voltage V AC120/AC220
Closing time ms 200
Opening time Electric hold type ms 160
Mechanical hold type ms 60
Power frequency withstand voltage Main circuit kV 42
Secondary kV 2
Auxiliary switch 3a+3b
Overall dimensions (HeightXWidthXDepth) 537X470X218





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