Indoor High Voltage Load Break Switch

。Ambient temperature-25℃－＋40℃
。Elevation,,,; 1000m
。Humidity: daily average humidity.;;95%, monthly.;;90%
。The earthquake does not exceed degree 8
。No fire, explosion, chemical errosion.

FN7-12DR Model indoor AC HV Load Switch is suitable in 50Hz,rated voltage of 12Kv the three-phase AC power system
as the breaking load short-circuit current of the power and used the Closing,
until the combination of electrical short -circuit current can be breaking any current
can be used as protection purposes .

。The ambient temperature: -25°C－＋40°C， alpine region, ;;.-40°C；
。The altitude：≤1000M;
。Relative humidity: daily average value is not greater than 95%, monthly average is not 9reater than 90%;
。Earthquake intensity：≤ 8 degree;