“The main purpose of International Protection (or IP) ratings is to specify the environmental protection of electrical equipment. It is an international standard that classifies the degrees of protection provided against the intrusion of solid objects, dust, contact and water in electrical enclosures. IP ratings can also be referred to as IP code, Index Protection or Ingress Protection Rating.
The ratings consist of the letters IP followed by two numbers and an optional letter. The numbers correspond to a chart that states what level of protection is given. If only one of the classes of protection is provided, missing protection is replaced with an x.
The first digit indicates what level of protection the enclosure provides against hazardous parts and the entering of solid foreign objects. See below.
|0||No special protection|
|1||Protected against solid objects up to 50mm (e.g. accidental touch by a person’s hands)|
|2||Protected against solid objects up to 12mm (e.g. a person’s fingers)|
|3||Protected against solid objects over 2.5mm (e.g. tools and wires)|
|4||Protected against solid objects over 1mm (e.g. tools, wires and small wires)|
|5||Protected against dust limited ingress (no harmful deposit)|
|6||Totally protected against dust|
The second digit indicates what level of protection the enclosure provides against the entering of liquids. See below.
|1||Protected against vertically falling drops of water, eg. condensation|
|2||Protected against direct sprays of water up to 15o from the vertical|
|3||Protected against direct sprays of water up to 60o from the vertical|
|4||Protected against water sprayed from all directions (limited ingress permitted)|
|5||Protected against low pressure jets of water from all directions (limited ingress permitted)|
|6||Protected against temporary flooding of water, eg. for use on ship decks (limited ingress permitted)|
|7||Protected against the effect of immersion between 15cm and 1m|
|8||Protected against long periods of immersion under pressure|
· An enclosure with a rating of IP43 would provide you with protection from solid objects over 1mm and direct sprays of water up to 60o from the vertical
· Almost all Defender cameras have a rating of IP65, which means they are completely protected against dust and can handle exposure to low pressure jets of water from all directions, such as rainfall and snow