- Rated voltage:12KV
- Rated current:1600A
- Place of Origin:CN;ZHE
- Type:Vacuum
- Poles Number:3
- Place of Origin:CN
- Brand Name:YUFENG
- Model Number:ZN73-12~24KV
ZN73-12~24KV permanant magnet vacuum circuit breaker is uses permanant magnetic actuator for the operation of indoor vacuum circuit three-phase AC Device,rated voltage 12KV,rated frequency 50HZ,rated current 630A-3150A,short-circuit current 16KA-40KA.Can really take for KYN28 switch cabinet,without the need for cabinet make any changes.
Working condition:
Altitude:≤2000m
Ambient temperature:-40℃~+40℃
Ambient humidity:daily average ≤95%,monthly average≤90%
Standard vapor pressure:daily average≤2.2Kpa,monthly average≤1.8Kpa
Earthquake intensity:≤8 degree
It should be installed in the places without dust,smoke,corrosive or flammable gases,vapor and salt spary.
| No. | Item | Unit | Data | |||
| 1 | Rated voltage | KV | 12 | |||
| 2 | Rated frequency | Hz | 50 | |||
| 3 | Rated lightning impulse withstand voltage (peak) | KV | 75 | |||
| 4 | Rated short-time power frequency voltage (1 min) | KV | 42 | |||
| 5 | Rated current | A | 630,1250 | 630,1250 | 1250,1600 2000,2500 | 1600,2000 2500,3150 4000,5000 |
| 6 | Rated short circuit breaking current | KA | 20 | 25 | 31.5 | 40 |
| 7 | Rated short circuit making current (peak) | KA | 50 | 63 | 80 | 100 |
| 8 | Rated short circuit duration | S | 4 | |||
| 9 | Rated operating sequence | O-0.3s-CO-180s-CO 0-I80s-C0-I80s-C0 (40KA) | ||||
| 10 | Rated single / back to back capacitor bank breaking current | A | 630/400 | |||
| 11 | Rated short circuit current breaking time | Times | 30 | |||
| 12 | Opening time | ms | 35-70 | |||
| 13 | Closing time | ms | 20-50 | |||
| 14 | Mechanical life | Times | 10000 | |||
| 15 | Rated energy storage and operating voltage | V | AC220/110DC220/110 | |||
| 16 | Contact stroke | mm | 11 ±1 | |||
| 17 | Contact overtravel | mm | 3.5 ±0.5 | |||
| 18 | Average closing speed | m/s | 0.5-0.8 | |||
| 19 | Average opening speed | m/s | 0.9-1.2 | |||
| 20 | Contact closing bounce time | ms | W2 | |||
| 21 | Three-phase opening,closing asynchronous | ms | W2 | |||
| 22 | The main circuit resistance | μΩ | W50 (63OA)W45 (1250A) W35 n600~2000A)<25 (more than 2500) | |||
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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