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Protection of Electronics Against Solid Foreign Objects

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​According to the EN 60529 standard, the protection of device enclosures against access to hazardous parts and against solid foreign objects is defined in the enclosure classes IP1X....IP4X with various probe tests.

Class / Protection against touch Protection against foreign objects

IP1X Protected against access to hazardous parts in the back of the hand Protected against solid foreign objects with a diameter of 50 mm and greater

IP2X Protected against access to hazardous parts with a finger Protected against solid foreign objects with a diameter of 12,5 mm and greater

IP3X Protected against access to hazardous parts with a tool Protected against solid foreign objects with a diameter of 2,5 mm and greater

IP4X Protected against access to hazardous parts with a wire Protected against solid foreign objects with a diameter of 1,0 mm or greate

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Tightness testing of electronics