IP IP

First part

Secondpart

Third part

Forth part

The European EN 60529 standard and the German DIN 40050 standard, part 9, are, combined, an exhaustive document as concerns the degrees of protection provided by enclosures. The object of this

standardistogive: 1)Definitionsforthedegreesofprotectionprovidedbyenclosuresforelectricalequipmentasregards:a)Protectionofpersonsagainst contactwithhazardouspartsinsidetheenclo-

sures; b) Protection of the equipment inside the enclosures against ingress of solid foreign objects; c) Protection of the equipment inside the enclosures against the harmful effects due to the ingress of

water. 2) Designations and classification for the degrees of protection. 3) Requirements for each designation. 4) Tests to be performed These Standards classify the degree of protection of the enclosures

withtheIPcode.TheIPcode(International ProtectionorIngressProtection)ismadeby4partswhichidentifyandcharacterizethedegreeofprotectionprovidedbytheenclosure.

First part indicates the protection

of the equipment against the ingress of solid foreign objects and the protection against access to hazardous parts also by means of tools in the hands of a person.

Second part indicates the degree of protection against

the harmful effects due to the ingress of water inside the enclosure. If a protection against the ingress of water is not foreseen, the characteristic numeral must be replaced by letter X. This part may

consist of additional levels contained in the DIN 40050-9 standard.

Third part is the first additional letter and indicates the degree of protection for persons against the access to hazardous parts. It is used when the protection for persons against access to hazardous

parts is higher than the one indicated by the first part, usually when there is no coincidence between the degree of protection for persons and the degree of protection against the ingress of solid

foreign objects; when the degree of protection against solid foreign objects is not indicated (the first part is replaced by a X), but only the degree of protection for persons

Fourth part, after the second part or after the supplementary letter, an additional letter can be appended to provide further information related to the protection of the device.

Non-protected

Protected against solid foreign objects ≥ 50 mm in diameter Protected against

access with the back of hand

Protected against solid foreign objects ≥ 12,5 mm in diameter Protected against access with a finger.

Protected against solid foreign objects ≥ 2,5 mm in diameter

Protected against access with a tool, for instance with a screwdriver.

Protected against solid foreign objects ≥ 1 mm in diameter Protected against access with a wire.

Partially dust-protected. Ingress of dust is not totally prevented, but the dust must not enter in sufficient quantity to interface with satisfactory operation of the equipment

or compromise its safety. Ingress of dust is not totally prevented, protected against access with a thin wire.

Dust-tight. Protection against ingress of dust No ingress of dust, complete protection against contact

(dust tight).

Non-protected.

Protected against the vertical water dripping

Protected against the water dripping when the enclosure is tilted at an angle up to to 15°.

Protected against rain (enclosure tilted up to 60°).

Protected against spraying (water sprayed from any direction).

Protected against water jets (from any direction).

Protected against powerful water jets (from any direction.

Protected against the effects of temporary immersion (up to 1 m).

Protected against the effects of continuous immersion (beyond 1 m).

Protected against access with the back of hand.

Protected against access with a finger.

Protected against access with a tool, for instance with a screwdriver.

Protected against access with a wire.

F

High-voltage equipment.

Tested against the harmful effects due to the ingress of water when its

movable parts are in motion.

Tested against the harmful effects due to the ingress of water when its

movable parts are not in motion.

Suitable for use under specific atmospheric conditions and provi-

ded with additional protective measures or proceedings

TECHNICAL DATA