1.Technical parameter
✔ Rated operation voltage: AC 0.66kV
✔ Rated frequency: 50-60Hz
✔ Ambient air temperature: -30℃-70℃
✔ Height above sea level: ≤3000m
✔ Power frequency withstand voltage: 3000v/1min 50Hz
✔ Used in place without direct rain and snow,without severe pollution and acute shock