| Protection against solid objects |
| 1st Digit |
Description |
Definition |
| 0 |
Non-protected |
No special protection |
| 1 |
Protected against solid objects greater than 50 mm |
A large surface of the body such as the hand (no protection against deliberate access). Solid objects exceeding 50mm diameter |
| 2 |
Protected against solid objects greater than 12 mm |
Fingers or other objects not exceeding 80 mm in length. Solid objects exceeding 12 mm diameter |
| 3 |
Protected against solid objects greater than 2.5 mm |
Tools, wires, etc of diameter or thickness greater than 2.5 mm. Solid objects exceeding 2.5 mm diameter. |
| 4 |
Protected against solid objects greater than 1.0 mm |
Wires or strips of thickness greater than 1.0 mm. Solid objects exceeding 1.0 mm |
| 5 |
Dust protected |
Ingress of dust is not totally prevented but dust does not enter in sufficient quantity to interfere with satisfactory operation of the equipment |
| 6 |
Dust-tight |
No ingress of dust |
| |
| Protection against liquids |
| 2nd Digit |
Description |
Definition |
| 0 |
Non-protected |
No special protection |
| 1 |
Protected against dripping water |
Dripping water (vertically falling drops) |
| 2 |
Protected against dripping water when tilted up to 15º |
Vertically dripping water shall have no harmful effect when the enclosure is tilted at any angle up to 15º from its normal position |
| 3 |
Protected against spraying water |
Water falling as spray at an angle up to 60º from the vertical shall have no harmful effect |
| 4 |
Protected against splashing water |
Water splashed against the enclosure from any direction shall have no harmful effect |
| 5 |
Protected against water jets |
Water projected from a nozzle against the enclosure from any direction shall have no harmful effect |
| 6 |
Protected against heavy seas |
Water from heavy seas or water projected in powerful jets shall not enter the enclosure in harmful quantities |
| 7 |
Protected against the effects of immersion |
Ingress of water in a harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time |
| 8 |
Protected against submersion |
The equipment is suitable for continuous submersion in water under conditions, which shall be specified by the manufacturer |
