- Rated voltage:12KV
- maximum working voltage:630A
- rated current:1250A
- Rated short circuit breaking current:20KA
- Rated peak withstand current:50KA
- 4S rated short-time resistance current:20KA
- Type:Vacuum
- Poles Number:3
- Place of Origin:CN;ZHE
- Brand Name:CNYUFENG
- Model Number:ZN85-40.5
high voltage 33KV 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.
| Item | Description | Unit | Data | ||||||
| 1 | Rated voltage | KV | 12 | ||||||
| 2 | Max. voltage | KV | 12 | ||||||
| 3 | Rated current | A | 630/1250 | 630A/1250A/ 1600A/2000A/ 2500A/3150A | 1250A/1600A/ 2000A/2500A/ 3150A/4000A | ||||
| 4 | Rated short circuit breaking current | KA | 20/25 | 31.5 | 40 | ||||
| 5 | Rated short circuit making current | KA | 50/63 | 80 | 100 | ||||
| 6 | Rated peak withstand current | KA | 50/63 | 80 | 100 | ||||
| 7 | 4S Rated withstand current | KA | 20/25 | 31.5 | 40 | ||||
| 8 | Rated insulation level | Power frequency withstand voltage(when losing a circuit) | KV | To earth 42 | |||||
| Impulse withstand voltage(when losing a circuit) | To earth 75 | ||||||||
| 9 | Rated operating sequence | OC-0.3s-CO-180S-CO | |||||||
| 10 | Mechanical life | Times | 20000 | ||||||
| 11 | Rated short circuit current breaking time | Times | 50 | ||||||
| 12 | Rated close brake voltage of operating machnie | V | AC,DC 110,220 | ||||||
| 13 | Rated break brake voltage of operating machnie | V | AC,DC 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 | |||||
| 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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