Thank you for a job well done.
Ingress Protection (IP) ratings are defined in international standard. They define how well an enclosure is sealed.
Picking an item with the wrong IP rating can lead to serious injury or damage. For example a child could put a screwdriver into an enclosure and could be seriously injured or die. If water splashes from your shower on to the wrong IP rated extractor fan you could get electrocuted.
What are the ratings?
AN IP rating comes in the format IP##
The first digit is for intrusion protection, the numbers have the following meanings: