- Rated voltage:12KV
- maximum working voltage:630KA
- rated current:1250A
- Rated short close current KA:50KA
- Type:Vacuum
- Poles Number:3
- Place of Origin:CN;ZHE
- Brand Name:CNYUFENG
- Model Number:ZN63(VS1)-12
parts of vacuum circuit breaker details listed as belows:
Adopt solid insulation structure, use of advanced solid epoxy sealing technology, the first time, the vacuum interrupter. A leading electrical circuit. insulation and other support to become an integrated combination of solid seal pole. Successfully from a fundamental solution of the vacuum breaker gas environment, tolerance issues, make it more broad. Integrated solid-pole closure of the fluent use of a self-ventilation technology, cleverly solved the structure of solid insulation caused by heat dissipation.
Environmental conditions:
1.Ambient temperature: not higher than +40 °C, not less than -40°C
2.Altitude: not exceed 2000m.
3.Relative humidity: daily average of not more than 95%, month average of not more than 90%.saturated vapor pressure daily average of not more than 2.2 × 103MPa, month average not more than 1.8 × 103MPa
4.Earthquake intensity: not more than eight.
5.No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration
| No. | Item | Unit | Data | |||
| 1 | Rated voltage | KV | 12 | |||
| 2 | Max. working voltage | KV | 12 | |||
| 3 | Rated current
| A | 630 1250 | 630 1250 1600 2000 2500 3150 | 1250 1600 2000 2500 3150 4000 | |
| 4 | Rated short circuit breaking current (Rated thermal stability current (RMS)) | KA | 20/25 | 31.5 | 40 | |
| 5 | Rated short-circuit current (peak) | KA | 50/63 | 80 | 100 | |
| 6 | Rated dynamic stability current (peak) | KA | 50/63 | 80 | 100 | |
| 7 | 4S Rated withstand current | KA | 20/25 | 31.5 | 40 | |
| 8 | Rated insulation level | Power frequency withstand voltage (rated breaking before and after) /1 min power frequency withstand voltage | KV | To earth 42 (Between open contacts) | ||
| Impulse withstand voltage(rated breaking before and after)/Lightning impulse withstand voltage (peak) | To earth 75 (Between open contacts) | |||||
| 9 | Rated thermal stability time | s | 4 | |||
| 10 | Rated operating sequence | O-0.3S-CO-180S-CO | ||||
| 11 | Mechanical life | Times | 20000 | |||
| 12 | Rated short circuit current breaking time | Times | 50 | |||
| 13 | Rated operating mechanism closing voltage (DC) | V | AC,DC 110, 220 | |||
| 14 | Actuator voltage of the floodgate (DC) | V | AC,DC 110, 220 | |||
| 15 | Contact stroke | mm | 11±1 | |||
| 16 | Overtravel (the length of contact spring compression) | mm | 3.5 ±0.5 | |||
| 17 | Three-phase points,closing phase asynchronous | ms | ≤ 2 | |||
| 18 | Contact closing bounce time | ms | ≤ 2 | |||
| 19 | Average opening speed | m/s | 0.9~1.2 | |||
| Average closing speed | m/s | 0.5~0.8 | ||||
| 20 | Opening Under max.operating voltage | c | ≤ 0.05 | |||
| 21 | time Under min.operating voltage | ≤ 0.08 | ||||
| 22 | Closing time | s | 0.1 | |||
| 23 | The main circuit resistance of each phase | μΩ | 630 ≤ 50 1250 ≤ 45 | |||
| 24 | Allowed comision thickness for fixed and movable contacts | mm | 3 | |||
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory with more than 20 years experience in this field.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days
if the goods are not in stock, it is according to quantity.
Q:Do your company have a website ?
A:Please check :www.cnyufeng.cn
Q: What is your terms of payment ?
A: Payment=500USD, 30% T/T in advance ,balance before shippment.
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