Environmental IP (Ingress Protection) Ratings
| Level of protection against solid objects, materials or dust | Level of protection against water and other liquids | ||
| 0 | No protection | 0 | No protection |
| 1 | Protected against solids and objects down to 50mm | 1 | Protection against vertically falling drops of water (eg. condensation). |
| 2 | Protected against solids and objects down to 12mm | 2 | Protection against direct sprays of water up to 15° from the vertical |
| 3 | Protected against solids and objects down to 2.5mm | 3 | Protection against direct sprays of water up to 60° from the vertical |
| 4 | Protected against solids and objects down to 1mm | 4 | Protection against water sprayed from all directions - limited access permitted |
| 5 | Protected against dust, limited ingress (no harmful deposits) | 5 | Protection against low pressure jets of water from all dircetions - limited ingress permitted |
| 6 | Totally protected against dust | 6 | Protection against low pressure jets of water, limited ingress permitted (such as ships deck) |
| . | . | 7 | Protection against the effect of immersion between 6"/15cm and 3ft/1m |
| . | . | 8 | Protection against long periods of immersion under pressure |
| . | . | 9K | Protection against close range high pressure, high temperature spray downs |
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