YFV-12KV-1250A circuit breaker switch has the advantages of easy installation,lile maintenance ,long life,small size,low price,safety and reliability. This product meets technical requirements of GB1984-89,GB/T1984-2003″AC high voltage circuit breaker”.
Major loop:1250A-20KA(4s) 、5KA(3s),Mechanical life:10000 times.
Ground loop:20KA(2s),Mechanical life:20000 times.
Product introduction
YFV-12KV-1250A circuit breaker switch has the advantages of easy installation,lile maintenance ,long life,small size,low price,safety and reliability. This product meets technical requirements of GB1984-89,GB/T1984-2003″AC high voltage circuit breaker”.
Major loop:1250A-20KA(4s) 、5KA(3s),Mechanical life:10000 times.
Ground loop:20KA(2s),Mechanical life:20000 times.
Working condition
Altitude is not more than 1000m,earthquake intensity is not more than 8 degrees.
Ambient temperature:-40℃~+140℃,relative humidity daily average≤90%,monthly average≤90%.
Frequentl vibrating installtion sites,places with water vapor,gas,chemical corrosive deposits,salt spray,dust and dit,andfires,that significantly affect the performance of the mechanism and places with fire or explosion hazards are not suitable.
Technical data table
| No. | Item | Unit | Data |
|---|---|---|---|
| 1 | Rated frequency | Hz | 50 |
| 2 | Rated current | A | 800 |
| 3 | Rated short time withstand current | kA | 20/25 |
| 4 | Rated peak withstand current | kA | 50 |
| 5 | Rated short circuit duration | s | 4 |
| 6 | Rated short circuit closing current | kA | 50 |
| 7 | Rated operation sequence | O-0.3s-180s-CO | O-0.3s-180s-CO |
Outline and dimensions of installation
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