GN38-12 INDOOR HIGH VOLTAGE DISCONNECTING SWITCH
Product Overview
GN38-12 indoor high-voltage disconnecting switch type indoor high-voltage disconnecting switch is designed and manufactured to meet the needs of fixed high-voltage cabinets and ring mains cabinets to compact and miniaturize. It has a three-station structure, a fully insulated bottom plate, and is equipped with a coaxial lock and a complete mechanical interlocking mechanism, which is compact and small. It is the best option switch for compact box switch cabinet Reference standard:GB1985-1989 AC high voltage disconnecting switch and grounding switch IEC129-84 AC disconnecting switch and grounding switch
Working Environment
1. The altitude is below 2000m;
2. Ambient air temperature: upper limit +40℃ , lower limit -25℃ ;
3. Relative humidity: daily average value is not more than 95%, monthly average value is not more than 90%;
4. The surrounding air should not be significantly polluted by corrosive orflammable gas, water vapor, etc.;
5. No frequent severe vibration.
Main Technical Parameters
| No. | Item | Unit | Data | |
| 1 | Rated voltage | kV | 12 | |
| 2 | Rated frequency | HZ | 50 | |
| 3 | Rated current | A | 630-1250 | |
| 4 | Rated thermal stability current (4s) | kA | 25-31.5 | |
| 5 | Rated dynamic stability current | kA | 63-80 | |
| 6 | Rated insulation level | 1 min Power frequency withstand voltage | kV | Over the ground and interphase 42；The isolation of fracture 48 |
| Lightning impulse withstand voltage | Over the ground and interphase 75；The isolation of fracture 85 | |||
Appearance And Installation Dimensions
| 1. Dynamic contact blade | 8. Manual operation positioning mechanism | |
| 2. Static contact | 9. Base | |
| 3. Incoming terminal | 10. Busbar through-wall insulation bottom plate | |
| 4. Insulation support | 11. Outlet terminal | |
| 5. Insulation rod | 12. Grounding contact | |
| 6. Operation panel | 13. Grounding busbar | |
| 7. Interlocking mechanism | 14. Grounding screw |
