ZN23-40.5 indoor high voltage vacuum circuit breaker
1.vacuum circuit breaker with IEC standard
2.Reliable and maintenance free
3.Type: Vacuum
4.Provide OEM service
ZN23-40.5 indoor high voltage vacuum circuit breaker is the indoor installation in 35kv,50Hz three phase current system. They are applicable to control and protect of high-voltage electromotor, transformer, capacitor in mining industrial enterprise, power station, transformer substation.
The strength is
1.Non-contamination, non-fire hazard, non-exploration;
2.Long mechanical life;
3. Nearly no need to maintain
4.Can be frequent operated. Both type CT19BN spring operating structure or the CD10III electromagnetic operating structure can be chosen.
This type of product conforms to the requirement of GB1984-89 and DL402-91standard for alternating current high voltage circuit breaker.
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 and rated voltage
Rated short circuit breaking current, operation voltage
Required accessory and quantity, rated voltage of open and close coil
Other requirement please contact with us directly
| Main Technical Data | ||||
| Rated voltage | kv | 40.5 | ||
| Rated frequency | Hz | 50 | ||
| Rated lighting impulse withstand voltage | kv | 185 | ||
| Rated short-time power frequency withstand voltage (dry) | kv | 95 | ||
| Rated short-time power frequency withstand voltage(humid) | kv | 80 | ||
| Rated current | A | 1250 | 1600 | 2000 |
| Rated short-circuit breaking current | kA | 20 | 25 | 31.5 |
| Rated short-circuit making current | kA | 50 | 63 | 80 |
| Rated short-time withstand current | kA | 20 | 25 | 31.5 |
| Rated peak withstand current | kA | 50 | 63 | 80 |
| Rated operations of short-circuit breaking current interruption | times | 20 | ||
| Full opening time | s | 0.1 | ||
| Rated operating sequence | 0-0.3-CO-180s -CO | |||
| Rated duration of short-circuit | s | 4 | ||
| Rated single capacitor bank breaking current | A | 400 | ||
| Contact erosion limit | mm | 3 | ||
| Closing time | ms | 50~100 | ||
| Opening time | ms | 30~60 | ||
| Mechanical life | times | 12000 | ||
| Note:Rated characteristics can be given on requirment | ||||
