General
Equipped with VS1 type vacuum circuit breaker with high breaking capacity and low current cutoff value (also can be equipped with VD4 type vacuum circuit breaker produced by ABB) as the main switch, the structure is advanced, reasonable, compact, superior in performance, safe and reliable, and has " The "five prevention" interlocking function meets the requirements of technical standards such as IEC298 and GB3906.
Service environment
1. The highest ambient temperature does not exceed +40℃, and the lowest does not exceed -10℃.
2. Environmental humidity The daily average relative humidity is less than or equal to 95%, and the monthly average relative humidity is less than or equal to 90%.
3. The altitude does not exceed 1000m.
4. The earthquake intensity does not exceed 8 degrees.
5. The surrounding air should not be significantly polluted by corrosive or combustible gas, water vapor, etc.
6. There is no frequent severe vibration place.
Technical data
| No. | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 3.6~24 |
| 2 | Rated frequency | Hz | 50/60 |
| 3 | Rated current | A | 630,1250,1600,2000,2500,3150,4000 |
| 4 | Branch busbar Rated current | | 630,1250,1600,2000,2500,3150,4000 |
| 5 | Main busbar Rated current | | 630,1250,1600,2000,2500,3150,4000 |
| 6 | 1min Power frequency withstand voltage | wet | KV | 38 | 50/60 |
| | | dry | | 48 | 60/65 |
| 7 | Lightning impulse withstand voltage | kV | 75 | 95/125 |
| 8 | Rated short circuit breaking current (peak) | KA | 40/50/63/80/100 |
| 9 | Short-time withstand current(4s) | | 20/25/31.5/40 |
| 10 | Protection type | | IP4X for housing |
