IP (INGRESS PROTECTION) protection grade system is drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION), which classifies electrical appliances according to their dust and moisture resistance.
The IP protection level is composed of two numbers. The first number indicates the level of protection against dust and intrusion of foreign objects (the foreign objects referred to here include tools, human fingers, etc., must not touch the live parts of the appliance, to avoid electric shock), the second number indicates the degree of air tightness of the electrical appliance against moisture and water immersion. The larger the number, the higher the degree of protection.
Grass IEC
Composition Two numbers
First number The level of protection against dust and foreign objects
Second number The degree of airtightness of electrical appliances against moisture and water intrusionFeatureThe larger the number, the higher the protection level
| Foreign body protection | |
| IP 1x | protection against penetration of foreign bodies ≥ 50 mm |
| IP 2x | protection against penetration of foreign bodies ≥ 12 mm |
| IP 3x | protection against penetration of foreign bodies ≥ 2,5 mm |
| IP 4x | protection against penetration of foreign bodies ≥ 1 mm |
| IP 5x | protection against harmful dust deposits |
| IP 6x | protection against dust entry |
| Water protection | |
| IP x1 | protection against drops of water falling vertically |
| IP x2 | protection against drops of water from angles up to 15° |
| IP x3 | protection against showers up to 60° |
| IP x4 | protection against splash water |
| IP x5 | protection against water jets |
| IP x6 | protection against heavy downpours |
| IP x7 | protection against immersion |
| IP x8…m | protection against submersion |