No.

Degree of protection for physical contact

Degree of protection of outer solid entering

0

No Protection

No Protection

1

Prevent large areas of the human body from entering
(Diameter 50mm)

Prevent large solid foreign objects from entering (diameter 50mm or greater than 50mm)

2

Prevent finger entry

(diameter 12mm)

Prevent medium-sized solid foreign objects from entering

(diameter greater than or equal to 12.5mm length not greater than 80mm)

3

Prevent tools and wires from entering

(diameter greater than or equal to 2.5mm)

Prevent small solid foreign objects from entering

(diameter greater than or equal to 2.5mm)

4

Prevent tools, wires and fine wires from entering

(diameter greater than or equal to 1mm)

Prevent solid particles from entering foreign matter

(diameter greater than or equal to 1mm)

5 (K)

Wire protection (like IP4), dust protection

Dust accumulation (harmless)

6 (K)

Wire protection (like IP4), dust enclosure

Dust can't enter

No.

Waterproof protection

0

No protection

1

Protection against vertical dripping

2

Protects against direct splashing water within 15° of the vertical direction

3

Protection against direct splash water in the vertical direction of 60°

4

Protects the spray water in any direction, allowing a small amount of water to enter

4k

Protected against pressurized spray water in any direction, only for road vehicles

5

Protection against low pressure spray water in any direction

6

Protection against huge waves or powerful spray water (water injection)

6k

Protects against pressurized, strong spray water (water injection), only for road vehicles

7

Protect against short-term immersion in water

8

Protection against prolonged immersion in water

9k

Protection against high pressure steam injection, only for road vehicles