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Classification of IP protection rate

Due to various conditions in rooms where Insect Exterminators can be installed, our company offers wide range of devices of different IP protection rate. The tables below list the present system of classification of IP protection rate of cases of electronic devices.
IP level is an encoded number in accordance with standards IEC/EN 60529.
Encoding system consists of two digits, first of which informs about possible level of penetration of solids (first digit) and possible penetration of water (the other digit). The bigger the digit is the better protection rate against solids and water is provided.

First digit: Protection against external influence of solids.

0	No protection
1	Protection against > 50mm
2	Protection against particles > 12mm
3	Protection against particles > 2,5mm
4	Protection against particles > 1mm
5	Case protects against dust in a certain degree
6	Case is fully dustproof

Second digit: Protection against external influence of water.

0	No protection
1	Minimal protection against dripping water (movement in vertical direction)
2	Protection against dripping water (with max. deviation of the device of 15o from normal position
3	Protection against rainwater (pouring at the angle of max. 60o from the horizontal line plane)
4	Protection against spraying water (non-direct stream doesn't cause any damage)
5	Protection against water from a hose (direct stream of water doesn't cause any damage)
6	Protection against rippling/foamed water (foamed water or hitting stream of water doesn't cause any damage)
7	Protection against water during short immersion (short immersion in water doesn't cause any damage)
8	Protection against water during long-lasting immersion (long-lasting immersion in deep water doesn't cause any damage)