Level of motor protection
The motor protection level is expressed by IPXX. The first number after IPXX indicates dustproof, and the numbers are 0, 1, 2, 3, 4, and 5. The larger the number, the higher the dustproof level. The second number indicates waterproof, the numbers are 0, 1, 2, 3, 4, 5, 6, 7, 8, the larger the number, the higher the waterproof level.