Industrial PC IP Ratings Explained

LevelObject size protected againstEffective against
0-No protection against contact and ingress of object
1>50mmAny large surface of the body, such as the back of the hand, but noprotection against deliberate contact with a body part
2>12.5 mmFingers or similar objects
3>2.5 mmTools, thick wires, etc
4>1 mmMost wires, screws, etc
5Dust ProtectedIngress of dust is not entirely prevented but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment; complete protection against contact
6Dust TightNo ingress of dust; complete protection against contact
LevelObject size protected againstEffective against
0Not protectedNo protection against contact and ingress of object
1Dripping waterDripping (vertically falling drops) shall have no harmful effect
2Dripping water when tilted up to 15"Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15° from its normal position
3Spraying waterWater falling as spray at any angle up to 60° from the vertical shall have no harmful effect
4Splashing waterWater splashing against the enclosure from any direction shall have no harmful effects
5Water jetsWater projected by a nozzle (6.3mm) against the enclosure from any direction shall have no harmful effects
6Powerful water jetsWater projected in powerful jets (12.5mm nozzle) against the enclosure from any direction shall have no harmful effects
7Immersion up to 1mIngress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1m of submersion)
8Immersion beyond 1mThe equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. Normally this will mean that the equipment is hermetically sealed. However, with certain types of equipment, it can mean water can enter but only in such a manner that it produces no harmful effects.