Normal Operating Conditions for Vacuum Contactors
The altitude at the installation location should not exceed 1000m;
The maximum ambient air temperature shall not exceed +40 ℃, with an average value measured within 24 hours not exceeding +35 ℃. The minimum ambient temperature shall not fall below –15 ℃;
The average relative humidity measured over 24 hours shall not exceed 90%, and the average water vapor pressure measured within 24 hours shall not exceed 1.8 kPa;
The ambient air should be free from noticeable contamination by dust, smoke, corrosive and/or flammable gases, water vapor, salt mist, or similar pollutants.