| 0 | No protection, no special safeguards. | 0 | No special protection against water and moisture. |
| 1 | Protection against objects larger than 50mm: Prevents human body parts from accidentally touching internal components and stops objects larger than 50mm from entering. | 1 | Protection against vertically falling drops of water (e.g., condensation): Drops of water falling vertically will not cause damage to the equipment. |
| 2 | Protection against objects larger than 12.5mm: Prevents fingers from touching internal components. | 2 | Protection against dripping water when tilted up to 15 degrees: Dripping water will not cause damage when the equipment is tilted up to 15 degrees from its normal position. |
| 3 | Protection against objects larger than 2.5mm: Prevents solid objects larger than 2.5mm from entering. | 3 | Protection against spraying water: Prevents water sprayed at angles less than 60 degrees from vertical from causing damage to the equipment. |
| 4 | Protection against objects larger than 1mm: Prevents solid objects larger than 1mm from entering. | 4 | Protection against splashing water: Prevents water splashing from any direction from causing damage to the equipment. |
| 5 | Complete protection against foreign objects: Although not entirely dust-tight, the amount of dust entering will not affect the normal operation of the equipment. | 5 | Protection against water jets: Prevents water projected by nozzles from any direction from causing damage to the equipment. |
| 6 | Complete protection against foreign objects and dust. | 6 | Protection against powerful water jets or waves: Equipment installed on decks is protected against damage caused by powerful wavesv. |
| | | 7 | Protection against immersion in water: Ensures no damage occurs when the equipment is immersed in water for a specified time or under a certain water pressure. |
| | | 8 | Protection against submersion in water: Ensures no damage occurs when the equipment is submerged indefinitely under specified water pressure. |
