The IP protection level system is drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION), which protects the electrical appliance from dust and foreign objects (including tools, human fingers, etc., should not touch the live part of the electrical appliance, so as to avoid electric shock.) Intrusion and The characteristics of moisture resistance and waterproof intrusion are classified. The IP protection level is composed of two numbers. The first number indicates the level of the electrical appliance against dust and foreign objects intrusion. The second number indicates the degree of airtightness of the electrical appliance against moisture and water intrusion. The larger the number, the higher the protection level. higher.

Test Probe 32 manufacturers believe that the first number after IP represents the dustproof level, and the second number represents the waterproof level.
0 No protection No special protection for people or things in the outside world
1 Prevent the intrusion of solid foreign objects with a diameter greater than 50mm
Prevent the human body (such as the palm) from accidentally touching the internal parts of the electrical appliance, and prevent foreign objects of larger size (diameter greater than 50mm) from invading
5 Prevent foreign objects and dust
Completely prevent the intrusion of foreign objects, although it cannot completely prevent the intrusion of dust, the amount of dust intrusion will not affect the normal operation of the electrical appliance
6 Prevent foreign objects and dust
Completely prevent the intrusion of foreign objects and dust