The degree of protection offered by an enclosure is shown by the letters IP (Ingress Protection) and two indexes. The first index indicates two factors (protection for persons and equipment), the second index indicates only one factor (protection against water).
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If enclosures are not equipped with pressure compensation, the interaction of temperatures with the effects of water and moisture can result in moisture being drawn in through the seal and into the enclosure. IP protection can no longer be guaranteed! In order to compensate for these pressure fluctuations caused by differences in temperature, we strongly recommend the use of a pressure compensation element (DAE) (pressure compensation valve).
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