Table 2.4 - Numbers in the I P system
First Number Mechanical protection against Second Number Water protection against
0
Not protected
0
Not protected
1
Solid objects exceeding 50mm
1
Dripping water
2
Solid objects exceeding 12mm
2
Dripping water when tilted up to 15
3
Solid objects exceeding 2.5mm
3
Spraying water
4
Solid objects exceeding 1.0mm
4
Splashing Water
5
Dust protected
5
Water jets
6
Dust tight
6
Heavy seas
-
-
7
Effects of immersion
-
-
8
Submersion

Extracted from The Electricians Guide Fifth Edition
by John Whitfield

Published by EPA Press
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