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The IP protection level test is mainly for the dustproof and waterproof performance of the product. Use the letters IP (Ingress Protection) plus two digits to indicate the level of equipment security protection. The IP protection level system provides a method to classify products by the degree of dust, water resistance and collision resistance of electrical equipment and packaging. The system has been approved by most European countries, drafted by the International Electrotechnical Commission IEC (International Electro Technical Commission) and announced in the IED529 (BS EN 60529: 1992) outer packaging protection level (IP code).


IP protection levels are mostly expressed by IP followed by two numbers, which are used to clarify the protection level.


The first digit indicates the extent to which the equipment is resistant to dust, or the extent to which people are protected from harm in a sealed environment. Represents the level of preventing solid foreign matter from entering, the highest level is 6;


The second digit indicates how waterproof the device is. Represents a level to prevent water ingress. The highest level is 8.


Dust level (the first X indicates)


0: No protection


1: Prevent large solids from entering


2: Prevents intrusion of medium-sized solids


3: Prevent small solids from entering


4: Prevent solid objects larger than 1mm from entering


5: Prevent the accumulation of harmful dust


6: completely prevent dust from entering


Waterproof level (the second X indicates)


0: No protection


1: Water droplets have no effect on the shell


2: When the casing is tilted to 15 degrees, water droplets drip into the casing without effect


3: No impact from water or rain from a 60-degree corner to the housing


4: The liquid is splashed into the shell from any direction without harm.


5: Rinse with water without any harm


6: Can be used in the cabin environment


7: Resistant to water immersion in a short time (1m)


8: Long time immersion in water under a certain pressure


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