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Ingress Protection code explained - the IP code

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The IP code explained

We have just added a massive line of LED flood lights to our range and a lot of them are IP65 rated, after listing these items we had a heap of questions asking ‘what does the IP65 mean’ so I will answer that for you now:

IP stands for Ingress Protection Rating it is a simple to read one glance rating to determine the protection an object has against a solid or liquid.

The first number after IP is the Solid Rating and the second number the Liquid Rating.

For example IP65 has an Ingress Protection rating 6 for solids and 5 for liquids

Here is a chart explaining the Ingress Protection Rating numbers for both solids and liquids:

IP##  First digit:
Ingress of solid objects
Second digit:
Ingress of liquid objects

 Protected against solid objects over 50mm

For example; flat surfaces of the body, but no protection against  deliberate contact, large tools.

Protected against dripping water

Dripping water or vertically falling drops are protected against ingress.


Protected against solid objects over 12.5mm

For example; hands, fingers, large tools.

Protected against dripping water at an angle

Protected against vertically dripping water when the enclosure is tilted at an angle up to 15° from its normal position.


Protected against solid objects over 2.5mm

For example; thick wire, small tools.

Protected against sprays of water

Any sprayed water at an angle up to 60°


Protected against solid objects over 1.0mm

For example; most wire, screws, small tools

Protected against splashed water

Light splashes from all directions are protected against up to 10 litres per minute


Limited protection against dust ingress.

Ingress of dust is not entirely protected but it must not enter enough to interfere with the operation of the product

Protected against low pressure water jets

Water jet shot from nozzle up to 6.3mm from any direction is protected against ingress up to 12.5 litres per minute


Totally protected against dust ingress.

No ingress of dust at all, complete protection

Protected against high pressure water jets

Water jet shot from nozzle up to 12.5mm from any direction is protected against ingress up to 100 litres per minute

7 N/A

Protected against immersion up to 1 meter

Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water up to 1 m of submersion.

8 N/A

Protected against long, durable periods of immersion in water.

After this point manufacturers will specify how deep the protection goes under water and how long it can be that deep. The protection has to be more then 1m deep for a rating of 8

So from this chart we can see that a LED light with an IP65 rating is completely protected against dust and protected against things like hoses of water and splashes - so perfect on a car or outside in the weather on a house.

A device with a rating of IP44 only offers protection against items being poked into it - so no protection against dust and has protection against light splashes ot water. Basically higher the rating the better the protection.

I hope this helps clear up any questions, please feel free to send through any further questions!