The Normal Working And Installment Conditions

·   Surrounding air temperatures: the surrounding ait temperature upper limit does not surpass+40节, the lower limit is not lower than-5节, The average temperature does not surpass+35节 in 24 hours;

·   Installation sites altitude above sea level does not surpass 2000m;

·   Atmospheric relative temperature does not surpass 50% when the surrounding air temperature are 40节 Can not have a higher relative humidity in a lower temperature, In the wettes month monthly average most low temperature is+25节, the monthly average maximum relative humidity is 90%, and consideration the dew on product surface;

·   Because of the temperature change;

· Installation sites environmental pollution can be 3 levels;

· Install category is III kind;

· Install condition: A.  Installment gtadient with vertical  not to surpass5. Installs in without remarkable vibration and impact place.

Main Technical Parameter

· Rated frequency 50Hz;

· Rated insulation voltage 660V;

· Rated working voltage 220V, 380V, 660V;

· Rated fixed woring voltage and the rated current of thermal relay and the maxmum power of controlled three phase AC motor.