First number - Protection from solid objects


0 No protection against contact and ingress of objects (Sometimes X).

1 Protected against solid objects up to 50mm. (eg Back of hand).

2 Protected against solid objects up to 12.5mm. (eg Fingers and similar).

3 Protected against solid objects up to 2.5mm. (eg Tools, thick wires, etc).

4 Protected against solid objects up to 1mm. (eg Most wires, screws, etc).

5 Protected against dust (limited ingress permited) completely protected against contact.

6 Totally protected against dust, completely protected against contact.

Second number - Protection from liquid ingress


0 No protection (Sometimes X).

1 Protection against dripping water (vertically falling drops).

2 Protection against dripping water when the item is tilted by up to 15 degrees from normal position.

3 Protection against direct sprays at any angle up to 60 degrees from normal position.

4 Protection against water splashed from any direction - limited ingress permitted.

5 Protected against low pressure jets of water from all directions - limited ingress permitted.

6 Protected against powerful jets of water - limited ingress permitted. (example, ship's deck)

7 Protected against the effects of immersion between 15cm and 1m.

8 Protected against long periods of immersion under pressure.

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