Ingress Protection

Technology

Ingress Protection

Ingress protection tells how much the structure of the Switch provides protection against solid objects and water.

1. First Digit: Protection against Solid Objects

Code Level of protection
0 No protection against entry of dust or dirt.
1 Round test object with 50-mm diameter will only partially enter the interior.
2 Round test object with 12.5-mm diameter will only partially enter the interior.
3 Round test object with 2.5-mm diameter will not enter the interior.
4 Test object with 1.0-mm diameter will not enter the interior.
5 No dust or dirt that would affect the correct operation of the device or safety will enter the interior.
6 Dust and dirt will not enter the interior.

2. Second Digit: Protection against Liquids

Code Level of protection Test method outline
(test performed using pure water)
0 No protection No protection against entry of water No test  
1

Protection against water drops

No harmful effects from vertical water drips By using water drip tool vertically and dropping water for 10 min
2

Protection against water drops

No harmful effects of water drips from vertical direction when the enclosure is tilted at 15° from its normal position By using water drip tool, moving it at an angle of 15°, and dripping water for 10 min (2.5 min per direction)
3

Protection against water spray

No harmful effects of water spray at any angle up to 60° from the vertical direction By using the tool shown on the right, and spraying water vertically at angles up to 60° for 10 min
4

Protection against water splash

No harmful effects of water splash from all directions By using the tool shown at the right, and splashing water from all directions for 10 min
5

Protection against water jets

No harmful effects of water jets from all directions By using the tool shown on the right, and jetting the water from all directions to the object surfaces for 1 m2/min, for at least 3 min total.
6

Protection from strong water jet

No harmful effects of strong water jets from all directions By using the tool shown on the right, and jetting the water from all directions to the object surfaces for 1 m2/min, for at least 3 min total.
7

Protection against submersion in water

No harmful effects from submersion in water to a certain level of pressure and length of time Submerge to 1 m depth in water (when device height is 850 mm or less) for 30 min

This does not imply that the device can be operated under water.

Standard switches are often IP40. Sealed switches are often IP67.