This article explains how IP54 should be understood in EV charging applications, and why the way a manufacturer engineers and validates protection matters more than the rating label itself. IP ratings, or Ingress Protection ratings, classify the degree of protection that electrical enclosures. When users search for IP54, they are often looking for reassurance — whether a device can withstand dust, moisture, and real-world operating conditions. In electric vehicle charging, however, IP ratings are not standalone specifications. ✅ Water (4): Resists splashing water (rain, sprinklers). IP55 – A step up for harsher conditions (snow, light storms). The code labels an enclosure's IP followed by two numbers; the first.