571
PROTECTION LEVEL
The IP (International Protection - IEC standard 60529) standard establishes the resistance of a product against the intrusion of solid
particles (such as parts of the body and dust) as well as liquids.
The IP - - code is followed by two digits according to the table, the first refers to the intrusion of solid bodies, the second to the degree of
protection against liquid penetration.
IP
SOLID OBJECTS 0 – 6
FIRST digit
SECOND digit
LIQUIDI 0-8
FIRST digit
SOLID OBJECTS value 0 – 6
IP 0 –
No protection against contact and ingress
of objects
IP 1 –
Any large surface of the body, such as the
back of a hand, but no protection against
deliberate contact with a body part >50 mm
IP 2 –
Fingers or similar objects >12.5 mm
IP 3 –
Tools, thick wires, etc >2.5 mm
IP 4 –
Most wires, slender screws, large ants etc.
>1 mm
IP 5 –
Ingress of dust is not entirely prevented, but
it must not enter in sufcient quantity to
interfere with the satisfactory operation of
the equipment.
IP 6 –
No ingress of dust; complete protection
against contact (dust tight). A vacuum
must be applied. Test duration of up to 8
hours based on air flow.
SECOND digit
LIQUID OBJECTS value 0 - 8
IP – 0
No protection against contact and ingress
of liquid.
IP – 1
Vertically dripping water shall have no
harmful efect when the enclosure is tilted
at an angle of 15° from its normal position.
A total of four positions are tested within
two axes. Dripping water.
IP – 2
Vertically dripping water shall have no
harmful efect when the enclosure is tilted
at an angle of 15° from its normal position.
A total of four positions are tested within
two axes. Dripping water when tilted at 15°.
IP – 3
Water falling as a spray at any angle up to
60° from the vertical shall have no harmful
efect, utilizing either: a) an oscillating
fixture, or b) A spray nozzle with a
counterbalanced shield. Spraying water.
IP – 4
Water splashing against the enclosure from
any direction shall have no harmful efect,
utilizing either: a) an oscillating fixture, or
b) A spray nozzle with no shield. Splashing
of water.
IP – 5
Water projected by a nozzle (6.3 mm)
against enclosure from any direction shall
have no harmful efects. Water jets.
IP – 6
Water projected in powerful jets (12.5 mm
nozzle) against the enclosure from any
direction shall have no harmful efects.
Powerful water jets.
IP – 7
Ingress of water in harmful quantity shall
not be possible when the enclosure is
immersed in water under defined conditions
of pressure and time (up to 1 m of
submersion). Immersion, up to 1 m depth.
IP – 8
The equipment is suitable for continuous
immersion in water under conditions which
shall be specified by the manufacturer.
However, with certain types of equipment,
it can mean that water can enter but only in
such a manner that it produces no harmful
efects. Immersion, 1 m or more depth.
