Overview
JN15-24/31.5 series indoor grounding switch is suitable for indoor 24kV three-phase AC 50 (60) Hz power systems, and has the characteristics of advanced design, simple and compact structure, and reliable technical performance.
Operating Conditions
1. Altitude: ≤ 1000 meters;
2. The environment temperature: upper limit +40℃, lower limit -25℃;
3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;
4. Earthquake intensity: ≤8degree;
5. Class of pollution: II
Model and meaning
Technical Data
| Item | Unit | Parameter | |
| Rated voltage | kV | 24 | |
| Rated short time withstand current | kA | 31.5 | |
| Rated short circuit withstand time | s | 4 | |
| Rated short circuit making current | kA | 80 | |
| Rated peak withstand current | kA | 80 | |
| Rated insulation level | 1min power frequency withstand voltage | kV | 65 |
| Lightning impulse withstand voltage | 125 | ||
| Mechanism life | Times | 2000 | |
Overall and mounting dimensions(mm)
