486
487
classification of fixtures
IP XX
CODE Degree of protection (water)
0
No protection
1
Protection against vertical water drops
2
Protection against inclined water drops (15° from vertical)
3
Protection against splash water from all directions (60° from vertical)
4
Protection against splash water from all directions*
5
Protection against water jets from any angle*
6
Protection against temporary flooding*
7
Protection against water submersion to 1 m for 30 min.
8
Protection against high pressure water and submersion for an indefinite time
CODE Degree of protection (solids)
0
No protection
1
Protection against large foreign bodies (diameter <50 mm)
2
Protection against medium foreign bodies (diameter <12,5 mm)
3
Protection against small foreign bodies (diameter <2,5 mm)
4
Protection against small foreign bodies (diameter <1 mm)
5
Dust Protected
6
Dust-tight
* Limited ingress permitted
Classification of fixtures
Dust and moisture protection (IP classification)
classification of fixtures
The IP (International Protection) system drawn
up by the IEC classifies fixtures according to
the degree of protection afforded against the
ingress of foreign bodies, dust and moisture.
The term foreign bodies includes such things as
tools and fingers coming into contact with live
parts.
The designation to indicate the degrees of pro-
tection consists of the characteristic letters IP
followed by two numerals indicating conformity
with the conditions stated in two tables. The
first of these so-called ‘characteristic numerals’
is an indication of the protection against the
ingress of foreign bodies and dust, while the
second numeral indicates the degree of sealing
against the penetration of water.
