Common Work Condition And Installing Condition

♦The installation site elevation does not surpass 2000m;
♦Ambient air temperature should not over +40C, also not over +35C with in 24h, the lower limit of ambient air temperature is-5℃; The air relative humidity at installation site should not over 50% when the maximum temperature is +40℃; the higher relative humidity are allowed under lower temperature, for example,90% at 20℃, It must take the mesures on the product occuring dew because of the change of temperature;
♦The installation site pollution class is3;
♦The contactor can be mounted vertically or horizontally. If vertically mounts, the gradient between the mounted surface and the perpendicular plans is not bigger than +30%.(See Fig 1)