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IP Ratings: BS EN60529 1992

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The IP ‘Ingress Protection’ rating system provides a means of classifying the degrees of protection from dust and water afforded by electrical equipment and enclosures. The system is recognised in most countries and is set out in BS EN60529 1992 Degrees of protection.

First Number

Protection Against Solids

Second Number

Protection Against Liquids

IPTestIPTest
0IP 0No protection0IP 0No protection
1IP 1Protection against solid objects over 50mm eg accidental touch by hands1IP2 1Protected against vertically falling drops of water
2IP 2Protection against solid objects over 12mm eg fingers2IP2 2Protected against direct sprays of water up to 15° from the vertical
3IP 3Protection against solid objects over 2.5mm (tools & wires)3IP2 3Protection against sprays 60° from the vertical
4IP 4Protection against solid objects over 1mm (tools, wires & small wires)4IP2 4Protection against water sprayed from all directions – limited ingress permitted
5IP 5Protection against dust – limited ingress (no harmful deposit)5IP2 5Protection against low pressure jets of water sprayed from all directions — limited ingress permitted
6IP 6Totally protected against dust6IP2 6Protection against strong pressure jets of water. eg for use on shipdecks – limited ingress permitted
7IP2 7Protection against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes
8IP2 8Protection against long periods of immersion under pressure