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  • IP Code
  • 23-05-2012


The IP Code (or Ingress Protection Rating, sometimes also interpreted as International Protection

Rating) consists of the letters IP followed by two digits or one digit and one letter and an optional

letter. As defined in international standard IEC 60529, IP Code classifies and rates the degrees of

protection provided against the intrusion of solid objects (including body parts like hands and fingers),

dust, accidental contact, and water in mechanical casings and with electrical enclosures.

The standard aims to provide users more detailed information than vague marketing terms such as

waterproof. However, no edition of the standard is openly published for unlicensed readers.

The digits (characteristic numerals) indicate conformity with the conditions summarized in the tables

below. Where there is no protection rating with regard to one of the criteria, the digit is replaced with

the letter X.

For example, an electrical socket rated IP22 is protected against insertion of fingers and will not be

damaged or become unsafe during a specified test in which it is exposed to vertically or nearly

vertically dripping water. IP22 or 2X are typical minimum requirements for the design of electrical

accessories for indoor use.

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