Overview
GN30-12 indoor AC high voltage rotary isolation switch is a new type of rotary contact type isolation switch. The main structure is to fix two sets of insulators and contacts on the upper and lower planes of the three-phase common chassis. By rotating the contact, the switch can be closed and opened.
Operating Conditions
1. Altitude: ≤ 1000 meters
2. The environment temperature: upper limit +40℃, lower limit -10℃
3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;
4. The seismic intensity does not exceed 8 degrees;
5. There is no fire, explosion hazard, serious pollution, Places subject to chemical corrosion and severe vibration.
Model and meaning
Technical Data
| Item | Unit | Parameter | |||
| GN30-12/400-12.5 | GN30-12/630-20 | GN30-12/1000-31.5 | GN30-12/1250-31.5 | ||
| GN30-12D/400-12.5 | GN30-12D/630-20 | GN30-12D/1000-31.5 | GN30-12D/1250-31.5 | ||
| Rated voltage | kV | 12 | |||
| Rated current | A | 400 | 630 | 1000 | 1250 |
| Rated short time withstand current | kA | 12.5 | 20 | 31.5 | 31.5 |
| Rated short-circuit duration | s | 4 | |||
| Rated peak withstand current | kA | 31.5 | 50 | 80 | 80 |
| Rated lightning impulse withstand voltage (peak) | kV | 75/85 | |||
| 1min power frequency withstand voltage | 42/48 | ||||
Overall and mounting dimensions(mm)
