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General Data > IP Ratings

The International Protection Rating (IP Rating) classifies the degrees of protection provided against the intrusion of solid objects (including body parts like hands and fingers), dust, accidental contact, and water in electrical enclosures.

Some equipment that may be used in schools may have an IP rating displayed on the case. The table below shows what that rating means in terms of what protection the case of the appliance offers. For example, a rating of IP64 means that the equipment is totally protected against dust AND Protected against sprays from all directions - limited ingress permitted. The first number comes from the first column of the table (solids) and the second number from the second column (liquids).

Knowing what an IP rating means is important when using certain equipment for the first time, especially outdoor equipment. IP ratings can also help to ensure you purchase the correct type of equipment for certain environments.

First number (Protection against solid objects) Definition Second number (Protection against liquids) Definition
0 No protection 0 No protection
1 Protected against solids objects over 50mm (e.g. accidental touch by hands 1 Protected against vertically falling drops of water
2 Protected against solids objects over 12mm (e.g. fingers) 2 Protected against direct sprays up to 15 o from the vertical
3 Protected against solids objects over 2.5mm (e.g. tools and wires) 3 Protected against direct sprays up to 60 o from the vertical
4 Protected against solids objects over 1mm (e.g. tools, wires and small wires 4 Protected against sprays from all directions - limited ingress permitted
5 Protected against dust - limited ingress (no harmful deposit) 5 Protected against low pressure jets if water from all directions - limited ingress permitted
6 Totally protected against dust 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