DIN EN 60529 protection classes
The protection class, expressed as a two-digit IP code, guarantees the operational safety of an electrical appliance.
The first digit describes the extent of a protection against ingress of solid objects, the second indicator provides information on the degrees of moisture protection. Higher protection classes always include lower classes.
If a protection class is not claimed, an "X" is used instead.
Code letters:

first index figure
0
No protection against accidental contact, no protection against solid foreign bodies.

1
Protection against contact with
any large area by hand and
against solid foreign bodies with
minimum Ø 50 mm.

2
Protection against contact with the
fingers, protection against solid foreign
bodies with minimum Ø12 mm.

3
Protection against tools, wires or similar
objects with minimum Ø 2,5 mm,
protection against solid foreign
bodies with minimum Ø 2,5 mm.

4
Protection against tools, wires or similar
objects with minimum Ø 1 mm,
protection against solid foreign bodies
with minimum Ø 1 mm.

5
Full protection against interior
injurious dust depositis.

6
Total protection against contact,
protection against penetration of dust.

second index figure
0
No protection against water.

1
Protection against vertical water drips.

2
Protection against water
drips (up to a 15° angle).

3
Protection against diagonal water
drips (up to a 60° angle).

4
Portection against splashed
water from all directions.

5
Protection against water
(out of a nozzle) from all directions.

6
Protection against
temporary flooding.

7
Protection against
temporary immersion.

8
Protection against water pressure.


