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IP Ratings

The IP rating system provides a means of classifying the degrees of protection from dust, water and impact afforded by electrical equipment and enclosures. Details of a third IP numeral are also shown, this figure is used in corresponding international standards to indicate degrees of resistances to impact.    

 

 

IP

FIRST NUMBER
Protection Against Solid Objects

IP

SECOND NUMBER
Protection Against Liquids

IP

THIRD NUMBER
Protection Against Mechanical Impacts

0

No Protection

0

No Protection

0

No Protection

1

Protected against solid objects over 50 mm, eg. accidental toach by hands.

1

Protected against vertically falling drops of water

1

Impact 0.225 joule

2

Protected against solid objects over 12 mm, eg fingers

2

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

2

Impact 0.375 joule

3

Protected against solid objects over 2.5 mm (tools, wires)

3

Protected against sprays to 60° from vertical

3

Impact 0.50 joule

4

Protected against solid objects over 1 mm (tools, wires, small wires)

4


Protected against water sprayed from all directions - limited ingress permitted

5

Impact 2.00 joule

5

Protected against dust - limited ingress (no harmful deposit)

5


Protected against low pressure jets of water from all directions - limited ingress permitted

7

Impact 5.00 joule

6

Totally protected against dust

6

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

9

Impact 20.00 joule
                

7


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

8


Protected against long periods of immersion under pressure