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IP RATINGS
The IP rating system provides a means of classifying the degree of protection from dust and water afforded by electrical equipment and enclosures.
The system is recognised in most countries and is set out in a number of standards, including IEC 60529.
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1st digit: protection against solid objects |
2nd digit: protection against liquids |
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IP x… |
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Description/test |
IP … y |
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Description/test |
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0 |
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No protection |
0 |
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No protection |
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1 |
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Protected against solid objects over 50 mm, e.g. accidental touch by hands |
1 |
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Protected against vertically falling drops of water |
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2 |
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Protected against solid objects over 12.5 mm, e.g. fingers |
2 |
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Protected against direct sprays of water up to 15° from the vertical |
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3 |
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Protected against solid objects over 2.5 mm (tools/wires) |
3 |
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Protected against sprays to 60° from the vertical |
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4 |
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Protected against solid objects over 1 mm (tools/wires/small wires) |
4 |
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Protected against water sprayed from all directions – limited ingress permitted |
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5 |
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Protected against dust – limited ingress (no harmful deposit) |
5 |
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Protected against low pressure jets of water from all directions - limited ingress permitted |
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6 |
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No ingress of dust |
6 |
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Protected against strong jets of water, e.g. for use on shipdecks – limited ingress permitted |
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7 |
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Protected against the effects of immersion between 15 cm and 1 m |
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Example: IP67: No ingress of dust and protected against the effects of immersion between 15cm and 1m. |
8 |
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Protected against long periods of immersion under pressure |
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