IP stands for Connector Ingress Protection.

The protection level is the classification of the sealing protection level of the electrical equipment to prevent foreign objects (such as tools, dust, fingers) and moist gas from entering its enclosure.

Protection class - 1st digit

The first digit of the IP code indicates the degree of protection against human contact with moving parts and the degree of protection against solid foreign objects entering the enclosure of the device.

0 - no special protection

1 - Prevent larger parts of the body (such as hands) or prevent the entry of solid substances larger than 50mm in diameter

2 - Prevent objects not exceeding 80mm in length and 12mm in diameter from entering

3 - Prevent tools, wires, etc. from entering objects with a diameter or thickness greater than 2.5 mm

4 - Prevents the entry of solid matter greater than 1.0 mm in diameter or thickness

5 - Prevent dust accumulation from affecting equipment operation

6 - Completely dustproof

Protection class - 2nd number

The second number indicates the degree of protection against the entry of water in various forms (such as dripping, spraying, immersion, etc.) on the device enclosure.

0 - no special protection

1 - Prevent water from dripping vertically

2 - Prevent water from dripping at an inclination of not more than 15°

3 - Prevent water from spraying in

4 - Prevent water from splashing in

5 - Prevent water from being injected from the nozzle

6 - Prevent the entry of a large amount of seawater or water with jet pressure

7 - Prevent water from entering during short immersion

8 - Protection against water entry during a complete, continuous submersion (submerge at a depth of at least 1 meter for 15 minutes).