Understanding IP Ratings: How To Specify Enclosures With the Right Level of Protection
If only watertightness were a simple matter of ‘yes’ or ‘no’. Unfortunately, it is not. An electronic enclosure that survives some wet conditions may leak in other instances. Pressure is a crucial factor – hence the wide range of ingress protection ratings. IP ratings define how much protection an enclosure offers against solid particles and liquids. The first digit relates to dust/solids; the second concerns liquids. Significantly, a higher IP rating does not always mean ‘better’ – merely ‘different’.
