Technical notes
Index of protection table

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The IP indexes of protection show the protection rate for a device from external agents. It is made of 2 digits prefixed by IP

The first digit shows the degree of protection rate against solid objects and dust.

The second digit shows the degree of protection against liquids.

In some countries a third digit is being added. in this case it shows the degree of mechanichal protection.

Example: A rating of IP65 means a degree of protection 6 against solid objects and a degree of protection 5 against liquids.

Warning
The IP rating is valid with standard environmental conditions.
Special protections could be required in special
hazardous areas such as refineries, mines, blast furnace tcc. 

Protection against solid objects
1st digitDescriptionDefinition
0No protection

No special protection

1Protection against solid objects larger than 50mm Any extended part of body, such as the hand (the protection does not include intentional access). Solid objects with a diameter larger than 50mm.
2Protection against solid objects larger  than 12mmFingers or similar objects with a maximum lenght of 80mm. Solid objects with a diameter larger than 12mm.
3Protection against solid objects larger  than 2.5mmTools, wires and similar with a maximum diameter or thickness of 2.5mm. Solid objects with a diameter larger than 2.5mm
4Protection against solid objects larger  than 1.0mmWires or strips with a maximum thickness of 1.0mm.  Solid objects with a diameter larger than 1.0mm
5Protection against dustEntering of dust is not completely prevented, but dust does not enter in such a quantity to disrupt the normal operation of the device.
6Total protection against dustNo dust entering is possible.

 

Protection against liquids
2nd digitDescriptionDefinition
0No protection

No special protection

1Protection against drops of waterVertical drops of falling water must not have any damaging effect
2Protection against drops of water when tilted up to 15Vertical drops of falling water must not have any damaging effect, when the device is tilted up to 15from normal position.
3Protection against spraying water Water spray falling at an angle up to 60 from vertical must not have any damaging effect.
4Protection against splashing waterWater splashed towards housing from any direction must not have any damaging effect.
5Prot against water jetsA water jet from a a nozzle from any direction must not have any damaging effect.
6Protection against strong sea waterStrong sea water or a powerful water jet from any direction must not have any damaging effect.
7Protection  against immersionEntering of water in such a quantity to damage the device must not be possible when the device itself is dropped into water for a limited period at defined pressure conditions.
8Protection against continued submersionThe device may be immersed in water for a long duration at the conditions specified by manufacturer.

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Tel.: +39 02 659.82.82     Fax: +39 02 65.45.25

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Last modified 10-05-2013
 
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