1.vacuum circuit breaker
2.Reliable and maintenance free
3.Long service life,non exploration
4.Short delivery time
ZN63A(VS1)-12 Side mounting vacuum circuit breaker is a type of high voltage switch equipment which appropriate to 12kv, 50Hz three phase alternating current system, applicable for protecting and controlling, especially appropriate to frequent operation and short circuit places. This type is mainly used in fixed type switchgear, can not only use alone, but also in loop network, box-type and other kinds of nonstandard power supply system.
Ambient condition
1 Ambient temperature: max +40°C min -15°C(conveyance under -30°C is allowed)
2 Altitude: ≤1000m
3 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%; daily average saturated vapor pressure ≤2.2*10-3 MPa; monthly average value ≤1.8*10-3 MPa
4 Earthquake intensity: ≤8 degree
5 The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution
Order instruction
Complete model and order quantity of the product
Rated current, rated voltage, distance of each poles
Rated short circuit breaking current
Rated voltage of operation mechanism open and close release, rated voltage of energy saving motor
Required accessory and quantity
Other requirement please contact with us directly
| Main Technical Data | ||||
| Rated voltage | kv | 12 | ||
| Rated lighting impulse withstand voltage | kv | Interphase or to ground 75,fructure 80 | ||
| Rated short-time power frequency withstand voltage(dry) | kv | Interphase or to ground 42,fructure 48 | ||
| Rated short-circuit breaking current | kA | 20 | 25 | 31.5 |
| Rated current | A | 630/1250 | 630/1250/1600 | |
| Rated thermostability current(valid) | kA | 20 | 25 | 31.5 |
| Rated dynamic stability current(peak) | kA | 63 | 80 | |
| Rated short-circuit making current(peak) | kA | 63 | 63 | 80 |
| Rated operations of short-circuit breaking current interruption | times | 50(4kA is 30) | ||
| Power frequency withstand voltage of secondary circuit(1 min) | v | 2000 | ||
| Rated operating sequence | 0-0.3s-CO-180s -CO | |||
| Rated thermostability time | s | 4 | ||
| Rated single/back to back capacitor bank breaking current | A | 630/400 | ||
| Mechanical life | times | 10000 | ||
| Note: Rated characteristics can be given on requirment | ||||
