First number (Protection against solid objects) 

0 No protection 

1 Protected against solids objects over 50mm (e.g. accidental touch by hands 

2 Protected against solids objects over 12mm (e.g. fingers)

3 Protected against solids objects over 2.5mm (e.g. tools and wires) 

4 Protected against solids objects over 1mm (e.g. tools, wires and small wires 

5 Protected against dust - limited ingress (no harmful deposit) 

6 Totally protected against dust 

 

Second number (Protection against liquids) 

0 No protection 

1 Protected against vertically falling drops of water 

2 Protected against direct sprays up to 15o from the vertical 

3 Protected against direct sprays up to 60o from the vertical 

4 Protected against sprays from all directions - limited ingress permitted 

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

6 Protected against strong jets of water e.g. for use on shipdecks - limited ingress permitted 

7 Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes 

8 Protected against long periods of immersion under pressure