foreign bodies
water
  
ingress Protection

The protection classifications are indicated by a code cosisting of the two unchanging letters IP, and two digits for the protection grade.

Protection grades against contact and foreign bodies

First digit Scope of protection
Significance Symbol Explanation
0 No protection No specific protection for persons against direct contact with active or mobile parts. No protection of the operational part against penetration by foreign bodies.
1 Protection against large foreign bodies PRotection against large-surface chance contact with active and internal mobile parts, e.g. touch of a hand, but no protection against intentional access to these parts. Protection against penetration by solid foreign bodies with more than 50mm in diameter.
2 Protection against medium-sized foreign bodies Protection agaisnt finger contact wirh active or internal mobile parts. Protection against solid foreign bodies with more than 12mm in diameter.
3 Protection against small foreign bodies Protection against contact wirh active or internal mobile with tools, wires etc. more than 2.5mm thick. Protection against penetration of solid forgeign bodies more then 2.5mm in diameter.
4 Protection against granular foreign bodies Protection against contact with active or internal mobile parts with tools, wires etc. more than 1mm thick.
5 Protection against dust deposits Full protection against conctact with live or internal mobile parts. Protection against harmful dust deposits. Dust is not entirely prevented from entering, but it cannot enter in sufficient quantities to hinder operations.
6 Protection against dust entering Full protection against contact with live or internal mobile parts. Protection against dust penetration.
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