Working Conditions Of Circuit Breaker

- Sep 04, 2017 -

Ambient air temperature: ambient air temperature upper limit +40℃, 0 ambient air temperature lower limit-5 ℃, ambient air temperature of 24h mean no more than +35℃.

Elevation: The altitude of the installation site is no more than 2000m.

Atmospheric conditions: The relative humidity of the atmosphere is not more than 50% when the ambient air temperature is +40℃, and it can have higher relative humidity at the lower temperature, and the monthly average maximum relative humidity of the wet month is 90%, and the monthly average monthly minimum temperature +25℃, taking into account the condensation on the product surface due to temperature change.

Pollution grade: The pollution level is 3 grade.

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