Have you ever wondered what an IP rating actually means and how to work it out? We have designed a quick find table to help you understand what the IP rating actually means. IP (Ingress Protection) ratings are used to determine the level of seal of a particular electrical enclosure / appliance, set out by international standard EN 60529 (British BS EN 60529:1992, European IEC 60509:1989). Based on the IP rating, you can determine how efficient a particular product will be, when used in challenging environments.