- Rated voltage:12KV
- Rated current:630A
- Rated short citcuit breaking current:20KA
- Ratede shotr-circuit close current:50KA
- Rated peak withstand current:50KA
- 4S Rated withstand current:20KA
- Rated operating sequence:O-0.3S-CO-180S-CO
- Mechanical life:20000
- Contact stroke:11±1
- Closing time:≤0.1
- Type:Vacuum
- Poles Number:3
- Place of Origin:CN;ZHE
- Brand Name:Yufeng
- Model Number:VS1(ZN63)
ZN63(VS1)-12 medium voltage vacuum circuit breaker
VS1-12-24 type side-mounted(VBM7) vacuum circuit breaker is indoor high voltage switchgear for rated 12 to 24 KV voltage, frequecy 50HZ three-phase power system, used as electrical protection and control, as the special advantages of the vacuum circuit breaker,eapecially for the frequent need to operate under the rated current,or multiple breaking short-circle current location.
VS1-12~24 type side-mounted(VBM7) fixed mounted vacuum circuit breaker is mainly used for fixed open switchgear,the circuit breaker can be used alone,but also for the rig power supplp,box-type variable,or non-standard power supply system.
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
| Item | Description | Unit | Data | |
| 1 | Rated voltage | KV | 12 | |
| 2 | Max. voltage | KV | 12 | |
| 3 | Rated current | A | 630/1250/1600 | |
| 4 | Rated short circuit breaking current | KA | 20/25/31.5 | |
| 5 | Rated short circuit making current | KA | 50/63/80 | |
| 6 | Rated peak withstand current | KA | 50/63/80 | |
| 7 | 4S Rated withstand current | KA | 20/25/31.5 | |
| 8 | Rated insulation level | Power frequency voltage(when losing a circuit) | KV | Dreaker 42 |
| Impulse withstand voltage(when losing a circuit) | Dreaker 75 | |||
| 9 | Rated operating sequence | OC-0.3s-CO-180S-CO | ||
| 10 | Mechanical life | Times | 10000 | |
| 11 | Rated short circuit current breaking time | Times | 50 | |
| 12 | Rated close brake voltage of operating machnie | V | 110,220 | |
| 13 | Rated break brake voltage of operating machnie | V | 110,220 | |
| 14 | Contact stroke | mm | 11±1 | |
| 15 | Exceed range(the compress length of contact sping) | mm | 3.5±0.5 | |
| 16 | Different period of three-phase break and close break | ms | ≤2 | |
| 17 | The jump time of contact close break | ms | ≤2 | |
| 18 | Average break speed | m/s | 0.9~1.2 | |
| 19 | Average closing speed | m/s | 0.5~0.8 | |
| 20 | Opening time | Ubder max.operating voltage | S | ≤0.05 |
| Under min.operating voltage | ≤0.08 | |||
| 21 | Closing time | s | 0.1 | |
| 22 | Resistance of each phase main loop | μΩ | 630≤50 1250≤45 1600≤40 | |
| 23 | Contacts limit ersion | 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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