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IP Codes


The IP CodesIngress Protection Rating, sometimes also interpreted as International Protection Rating, classifies and rates the degree 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.

A two-digit number established by the International Electro Technical Commission, is used to provide an Ingress Protection rating to a piece of electronic equipment or to an enclosure for electronic equipment.

The protection class after EN60529 are indicated by short symbols that consist of the two code letters IP and a code numeral for the amount of the protection.

Example: IP65 (NEMA 4)
The two digits represent different forms of environmental influence:

  •  The first digit represents protection against ingress of solid objects.
  •  The second digit represents protection against ingress of liquids.

The larger the value of each digit, the greater the protection. As an example, a product rated IP54 would be better protected against environmental factors than another similar product rated as IP42.

FactorSedimentationFiltration
Solid size, finex
Solid size, > 150 micronx
Compressible cakesx
Open cakesx
Dry cake requiredx
High filtrate clarityx
Crystal breakage problemsx
Pressure operation
High-temperature operationwill depend on the type of centrifuge usedwill depend on the type of centrifuge used

References:

  1. IP ratings. http://www.mpl.ch/info/IPratings.html
  2. IP code. http://en.wikipedia.org/wiki/IP_Code

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