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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.

 

 

1st digit: protection against solid objects

2nd digit: protection against liquids

IP x…

 

Description/test

IP … y

 

Description/test

0

No protection

0

No protection

1

Protected against solid objects over 50 mm, e.g. accidental touch by hands

1

Protected against vertically falling drops of water

2

Protected against solid objects over 12.5 mm, e.g. fingers

2

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

3

Protected against solid objects over

2.5 mm (tools/wires)

3

Protected against sprays to 60° from the vertical

4

Protected against solid objects over 1 mm (tools/wires/small 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

No ingress of dust

6

Protected against strong jets of water, e.g. for use on shipdecks – limited ingress permitted

 

 

 

7

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

Example:

IP67: No ingress of dust and protected against the effects of immersion between 15cm and 1m.

8

Protected against long periods of immersion under pressure

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