VD9-12GD  Indoor high-voltage three-station vacuum circuit breaker

Profile:

Integration, side mounting, with isolation switch, with ground switch (up and down ground), interlock mechanism integration miniaturization.

12kv.630A....1250A...31.5KA

The outlet section is equipped with non-contact live display sensor

Cabinet doors are locked without adjustment

Model meaning of indoor vacauum circuit breaker:

VD9-12GD/630(1250)  25(31.5)

VD9    ---- Three-station vacuum circuit breaker

12      ---- Rated voltage(kV)

G        ---- Disconnector

D        ---- Earthing switch

630(1250)- Rated current（A)

21(31.5)  --Rated short circuit breaking current (KA)

Normal use environment:

Ambient temperature: -15~40°C, the average daily temperature does not exceed +35°C.

Humidity: The average relative humidity measured within 24 hours is less than 2.2kpa; The average humidity ≤90%; The average monthly steam pressure is less than 1.5kpa.

Altitude: ≤1000m

Solar radiation is negligible.

Vibrations from outside switchgear and control equipment can be ignored.

The surrounding air is not significantly contaminated by dust, smoke, corrosive or combustible gases, vapors or fumes.

Parts names of this indoor vacuum circuit breaker:

The main circuit of the VD9-12GD series side-mounted three-station vacuum circuit breaker is arranged longitudinally. 

The upper part is the isolation switch, the middle part is the vacuum circuit breaker, and the lower part is the ground switch. 

The operating mechanism, circuit breaker mechanism and interlock mechanism are located in the front part of the switch. 

This switch can be installed backwards.

Drawing: