IP-Rating System

Protection against solid objectsProtection against liqiuds Example

The first digit indicates the level of protection against access to hazardous parts and the intrusion of solid foreign objects or dust.

Protection against Solid Objects IP 1. # Touch                    Foreign Element 0 No Protection No Protection   1 With huge Body Parts (backhand) Huge Foreign Element, Diameter bigger 50 mm 2 With the Finger Foreign Element, Diameter bigger 12,5 mm 3 With Tools and Wires Diameter bigger 2,5 mm Small Foreign Element, Diameter bigger 2,5 mm 4 With Tools and Wires, Diameter bigger 1 mm Corn Formed Foreign Elements, Diameter bigger 1 mm 5 Complete Protection Dust Deposit 6 Complete Protection Dust Income

The second digit indicates the protection level against harmful ingress of water.

Protection against Liqiuds IP 2. # Details  0 No protection   1 Straight up Falling Drop Water 2 Slanting Falling Drop Water until 15º Compared with straight up 3 Spray Water until 60º Compared with straight up 4 Spray Water all Sides 5 Jet water 6 Hard Jet Water 7 Temporary Submerge 8 Submerge

Example: IP 21
First number means Touch protection with the finger and foreign elements, with diameter bigger than 12,5 mm.
Second number means The device is protected against straight down falling water.