The designation to indicate the degrees of protection consists of the characteristic letters IP followed by two numerals (the "characteristic numerals") indicating conformity with the conditions stated in tables below.

FIRST NUMERAL

Protection of persons against contact with or approach to live parts and against contact with moving parts (other than smooth rotating shafts and the like) inside the enclosure and protection of the equipment against ingress of solid foreign bodies in accordance with IEC 60598-1:2003.

0	Not protected
1	Protected against solid objects 50mm in diameter or greater. A large surface of the body, such as a hand (no protection against deliberate access).
2	Protected against solid objects 12mm in diameter or greater. Fingers or similar objects not exceeding 80mm in length.
3	Protected against solid objects 2.5mm in diameter or greater. Tools, wires, etc., of diameter or thickness greater than 2.5mm.
4	Protected against solid objects 1mm in diameter or greater. Wires or other similar solid material of thickness greater than 1mm in diameter.
5	Dust protected. Dust does not enter in sufficient quantity to interfere with satisfactory operation of equipment.
6	Dust tight. No ingress of dust.

SECOND NUMERAL

Protection of the equipment inside the enclosure against harmful ingress of water.

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.

IK00	Not protected
IK01	Protected against 0.14 joules impact. Equivalent to impact of 0.25kg mass dropped from 56mm above impacted surface.
IK02	Protected against 0.2 joules impact. Equivalent to impact of 0.25kg mass dropped from 80mm above impacted surface.
IK03	Protected against 0.35 joules impact. Equivalent to impact of 0.25kg mass dropped from 140mm above impacted surface.
IK04	Protected against 0.5 joules impact. Equivalent to impact of 0.25kg mass dropped from 200mm above impacted surface.
IK05	Protected against 0.7 joules impact. Equivalent to impact of 0.25kg mass dropped from 280mm above impacted surface.
IK06	Protected against 1 joules impact. Equivalent to impact of 0.25kg mass dropped from 400mm above impacted surface.
IK07	Protected against 2 joules impact. Equivalent to impact of 0.5kg mass dropped from 400mm above impacted surface.
IK08	Protected against 5 joules impact. Equivalent to impact of 1.7kg mass dropped from 300mm above impacted surface.
IK09	Protected against 10 joules impact. Equivalent to impact of 5kg mass dropped from 200mm above impacted surface.
IK10	Protected against 20 joules impact. Equivalent to impact of 5kg mass dropped from 400mm above impacted surface.