What is Ingress Protection classes (IPXX)?

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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 1xprotection against penetration of foreign bodies ≥ 50 mm
IP 2xprotection against penetration of foreign bodies ≥ 12 mm
IP 3xprotection against penetration of foreign bodies ≥ 2,5 mm
IP 4xprotection against penetration of foreign bodies ≥ 1 mm
IP 5xprotection against harmful dust deposits
IP 6xprotection against dust entry
Water protection
IP x1protection against drops of water falling vertically
IP x2protection against drops of water from angles up to 15°
IP x3protection against showers up to 60°
IP x4protection against splash water
IP x5protection against water jets
IP x6protection against heavy downpours
IP x7protection against immersion
IP x8…mprotection against submersion

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