Ingress Protection (IP) ratings indicate the level of protection from dust and water for a particular part. This includes various connectors, enclosures, light fixtures, Ethernet switches, cable glands, and other products. IP ratings are noted by a two digit number. The first digit shows the level of dust protection and the second digit indicates the level of water protection. Dust protection ranges from 0-6 and water protection ranges from 0-9. Some products may list two ratings, such as IP 66/67, which means that product meets the standards for two levels of protection. This chart explains what each level of IP protection indicates.

Ingress Protection (IP) Rating Guide
Number	Level of Dust Protection
0	No Protection
1	Protected from objects 50 mm (2") in diameter or greater, such as hands
2	Protected from objects 12.5 mm (0.5") in diameter or greater, such as fingers
3	Protected from objects 2.5 mm (0.1") in diameter or greater, such as certain size wires
4	Protected from objects 1 mm (0.04") in diameter or greater, such as smaller wires
5	Partial protection from dust
6	Total protection from dust; dust tight
Number	Level of Moisture Protection
0	No Protection
1	Protected from vertical droplets, such as condensation
2	Protected from droplets up to 15 degrees from vertical
3	Protected from spraying water up to 60 degrees from vertical
4	Protected from splashing water from any direction
5	Protected from low pressure water jets from any direction
6	Protected from high pressure water jets from any direction, such as sea waves
7	Protected from temporary immersion (up to 1 meter (3.28') depth for up to 30 minutes)
8	Protected from continuous immersion at standards greater than level 7
9	Protected from high pressure / high temperature water jets from any direction, such as washdown applications