IP Rating
The IP Rating refers to the Ingress Protection Rating. This is the level of protection that classifies and rates the degree of protection provided against intrusion of dust, accidental contact, and water by mechanical casings and electrical enclosures. The first digit of the IP Rating indicates the degree that persons are protected against contact with moving parts (other than smooth rotating shafts, etc.) and the degree that equipment is protected against solid foreign bodies intruding into an enclosure. The second digit indicates the degree of protection of the equipment inside the enclosure against the harmful entry of various forms of moisture (e.g. dripping, spraying, submersion, etc.).
| First Digit | Foreign Body Protection |
|---|---|
| 0 | No special protection. |
| 1 | Protection from a large part of the body such as a hand (but no protection from deliberate access); from solid objects greater than 50mm in diameter. |
| 2 | Protection against fingers or other object not greater than 80mm in length and 12mm in diameter. |
| 3 | Protection from entry by tools, wires, etc., with a diameter of thickness greater than 1.0mm. |
| 4 | Protection from entry by solid objects with a diameter or thickness greater than 1.0mm. |
| 5 | Protection from the amount of dust that would interfere with the operation of the equipment. |
| 6 | Dust tight. |
| Second Digit | Moisture Protection |
|---|---|
| 0 | No special protection. |
| 1 | Protected against vertically falling drops of water or condensation. |
| 2 | Protected against falling drops of water, if the case is disposed up to 15° from vertical. |
| 3 | Protected against sprays of water from any direction, up to 60° from the vertical. |
| 4 | Protected against splash water from any direction. Limited ingress permitted. |
| 5 | Protected against low pressure water jets from any direction. Limited ingress permitted. |
| 6 | Protected against high pressure water jets from any direction. Limited ingress permitted. |
| 7 | Protected against short periods of immersion in water - between 15cm and 1m. |
| 8 | Protected against long, durable periods of immersion in water, under pressure. |