Definition of Protection Grades IEC 529
IEC (International Electrotechnical Commission)

Technical Bulletin 107

Degrees of Protection against Water

Degree of protection is indicated by the second characteristic numeral (IPXX)

Second Characteristic Numeral Brief Description Definition
0 Not protected No protection against water
1 Protected against vertically falling water drops Vertically falling drops shall have no harmful effects
2 Protected against vertically falling water drops Vertically falling drops shall have no harmful effects when enclosure tilted up to 15°. when the enclosure is tilted at any angle up to 15° on either side of the vertical.
3 Protected against spraying water Water sprayed at any angle up to 60° on either
side of the vertical shall have no harmful effects.
4 Protected against splashing water Water splashed against the enclosure
from any direction, shall have no harmful effects.
5 Protected against water jets Water projected in jets against the enclosure
from any direction shall have no harmful effects.
6 Protected against powerful water jets Water projected in powerful jets against the enclosure from any direction shall have no harmful effects.
7 Protected against the effects of temporary immersion in water Ingress of water in quantities causing harmful effects shall not be possible when the enclosure is temporarily immersed in water under standardized conditions of pressure and time.
8 Protected against the effects of continuous immersion in water Ingress of water in quantities causing harmful effects shall not be possible when the enclosure is continuously immersed in water under conditions which shall be agreed between manufacturer and user but which are more severe than for numeral 7.

IPX8 SWITCHES, IPX8 SOLENOIDS

Hydracon IPX8 Switches and IPX8 Solenoids
are protected for Continuous Immersion in Water….
…. to 10,000 psi ambient pressure….
.…and additionally against corrosion due to seawater.