VIB-12 Indoor Vacuum Circuit Breaker With Embeded Poles

Vib-12 series indoor high voltage vacuum circuit breaker is used for 12kv rated voltage and as ac50hz indoor switchgear component. Product meets iec62271-100, dlt403-2000 & gb1984-2003 standards. It can be used for switching load, frequent operation and repeated breaking short circuit current situations.this series vcb uses independent mkl operating mechanism, with embed vacuum interrupter and main circuit's components as a integration to form embedded poles for assortment, so as to protect vcb for good environmental adaptability and greatly reduce maintenance cost. Matched withxgn2 and gg1-a series of switchgears.
With competitive price, reliable quality, quick delivery
applying ambient conditions
1. Ambient temperature:-10âºc~+40âºc.
2. The height above sea level: �2000m (oem for special usage).
3. Relative humidity: average humidity daily no more than 95%; average humidity monthly no more than 90%.
4. Saturated vapour pressure: average pressure daily no more than 2.2kpa; average pressure monthly no more than 1.8kpa.
5. Earthquake intensity: not exceed 8 degrees.
6. Installed in the places without fire, explosion, serious filth, chemical erosion and violent vibration.
Product specification:
1. Rated voltage: 12 kv
2. Rated frequency: 50 hz
3. Rated current: 630a~4000a
4. Rated short circuit breaking current: 20~50ka
5. Rated short-circuit duration: 4s
6. Rated operating sequence: 0-0.3s-co-180s-co
7. Mechanical endurance: 30000 cycles
8. Rated power frequency withstand voltage: 42 kv