IP protection classes: the different degrees of protection in lighting

On many occasions, lighting fixtures must stand rough conditions and work for their intended period of time nevertheless they are set out to dirt, dust and humidity. Ingress of liquid and/or solid particles into lighting equipment can not only be harmful to the equipment, it can be dangerous to the operator. Therefore when buying industrial lighting fixtures, it is essential to know what degree of “ingress protection“, also called IP class, or IP rating the product offers. IP codes stands for “ ”  and sometimes also for “International Protection Rating” IP protection classes define how and where the lights can be used without any safety risk.

The protection rating indicates also the protection for people against potential dangers when using the equipment. With regard to suitability for various environments, the systems are divided into relevant IP codes).

 These IP ratings specify the following:

  1. Protection of persons.
  2. Protection of light fixtures (and electrical equipment) against the penetration of solid matter, including dust.
  3. Protection of light fixtures against the harmful effects of water

Explanation of IP Codes

ip protection class

An IP code consists of the letters “IP” and two digits. The first digit is 0…6 and the second 0…9.

Ingress Protection Classification

First Number : Degrees of protection against the infiltration of impurities

Second Number : Degrees of protection against the damaging effects of water

IP

Protection Provided

IP

Protection Provided

0

No Protection

0

No Protection

1

Protected against solid objects up to 50mm e.g. accidental touch by hands

1

Protected against vertically falling drops of water e.g. condensation

2

Protected against solid objects up to 12mm e.g. fingers

2

Protected against direct sprays of water up to 15 deg from the vertical

3

Protected against solid objects over 2.5mm e.g. tools

3

Protected against direct sprays of water up to 60 deg from the vertical

4

Protected against solid objects over 1mm e.g. wires

4

Protected against water sprayed from all directions – limited ingress permitted

5

Protected against dust – limited ingress (no harmful deposit)

5

Protected against low pressure jets of water from all directions – limited ingress permitted

6

Protection against dust

6

Protected against high power water-jet streams

 7Immersion up to 1m

7

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

 8Immersion beyond 1m

8

Protected against long periods of immersion under pressure

You can get more information on waterproof lights and on dustproof lights created by Airfal on the following web pages:

– IP 42 waterproof luminaires

– IP 65 waterproof light fixtures

– IP 67 waterproof light fittings

– IP68 watertight lighting