About IP rating
What is an IP rating?
The Ingress Protection chart (AKA IP Rating) is a means of classifying the degrees of protection from dust, water and impact afforded by electrical equipment and enclosures. The first digit indicates the extent to which the equipment is protected against particles and the second digit indicates the extent of protection against water.
IP First number - Protection against solid objects
IP Second number - Protection against liquids
No special protection
Protected against solid objects up to 50 mm, e.g. accidental touch by persons hands.
Protection against vertically falling drops of water e.g. condensation.
Protected against solid objects up to 12 mm, e.g. persons fingers.
Protection against direct sprays of water up to 15o from the vertical.
Protected against solid objects over 2.5 mm (tools and wires).
Protected against direct sprays of water up to 60o from the vertical.
Protected against solid objects over 1 mm (tools, wires, and small wires).
Protection against water sprayed from all directions - limited ingress permitted.
Protected against dust limited ingress (no harmful deposit).
Protected against low pressure jets of water from all directions - limited ingress.
Totally protected against dust.
Protected against temporary flooding of water, e.g. for use on ship decks - limited ingress permitted.
Protected against the effect of immersion between 15 cm and 1 m.
Protects against long periods of immersion under pressure.