IP and IK RatingIngress Protection (IP) Rating
The IP system is an internationally recognised method to indicate the degree of protection against the ingress of dust, solid objects and moisture into an enclosure. The letters "IP" are followed by two numerals.
0 Not protected
The second numeral indicates the degree of protection against the ingress moisture as defined in IEC 60598-1:2003.
0 Not protected
1 Protected against dripping water.
Dripping water (vertically falling drops) shall have no harmful effect.
2 Protected against dripping water when tilted up to 15º
Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15º from
its normal position.
3 Protected against spraying water.
Water falling as a spray at any angle up to 60º from the vertical shall have no harmful effect.
4 Protected against splashing water.
Water splashing against the enclosure from any direction shall have no harmful effect.
5 Protected against water jets.
Water projected by a nozzle against enclosure from any direction shall have no harmful effects.
6 Protected against heavy seas.
Water from heavy seas or projected in powerful water jets shall not enter the enclosure in harmful quantities.
7 Protected against the effects of temporary immersion.
Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under
defined conditions of pressure and time.
8 Protected against continuous immersion.
The equipment is suitable for continuous submersion in water under conditions which shall be specified
by the manufacturer.
Note: Normally, this will mean that the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that produces no harmful effects.
Impact Protection (IK) Rating
Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts in accordance with IEC 62262:2002 and IEC 60068-2-75:1997.