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Degrees of protection

The degrees of protection for protection against contact and foreign objects and against water are indicated by characteristic numerals. The IP Code is characterised by 2 numerals. For the USA and Canada, the IP codes can roughly be compared with NEMA ICS6-1983/EEMAC E14-2 (for USA) or CSA-C22.1/CSA-C22.2 No. 94 (for Canada). (For example IP20 equivalent to enclosure type 1 or IP54 equivalent to enclosure type 3.)

Protection against contact and foreign objectsProtection against water
1st numeralDescriptionDefinition2nd numeralDescriptionDefinition
0non-protected0non-protected
1Protected against solid foreign objects ≥ 50 mmThe object probe, a sphere 50 mm diameter, shall not fully penetrate1Protected against vertically falling water dropsVertically falling drops shall have no harmful effects
2Protected against solid foreign objects ≥ 12,5 mmThe object probe, a sphere 12,5 mm diameter, shall not fully penetrate. The jointed test finger shall have adequate clearance from hazardous parts.2Protected against vertically falling water drops when the enclosure titled up to 15°Vertically falling drops shall have no harmful effects when the enclosure is titled at any angle up to 15° on either side of the vertical.
3Protected against solid foreigh objects  ≥ 2,5 mmThe object probe of 2,5 mm diameter shall not penetrate at all.3Protected against spraying waterSpraying water at an angle of up to 60° on either side of the vertical shall have no harmful effects.
4Protected against solid foreign objects   ≥ 1 mmThe object probe of 1 mm diameter shall not penetrate at all.4Protected against splashing waterSplashing water from any direction shall have no harmful effects
5Dust-protectedIngress of dust is not totally prevented, but dust shall not penetrate in a quantity to interfere with satisfactory operation of the apparatus or to impair safety.5Protected against water jetsWater projected in jets from any direction shall have no harmful effects.
6Dust-tightNo ingress of dust6Protected against powerful water jetsWater projected in powerful jets from any direction shall have no harmful effects
7Protected against the effects of temporary immersion in waterIngress of water in quantities causing harmful effects shall not be possible when the enclosure is temporarily immersed in water.
8Protected against the effects of continuous immersion in waterIngress of water in quantities causing harmful effects shall not be possible when the enclosure is continuously immersed in water